fix(roaming,settings): theme colors for night mode; unclamp cards; brand title and APK name

Three detail fixes plus branding, per user review: 1. Night mode visibility (roaming page): hardcoded reference blues (#01DDFF/#0BACF1) collapse to black under the red ColorMatrix filter (R channel only), making the page unreadable. Replace ALL colors with MaterialTheme.colorScheme (background/surface/ surfaceVariant/onSurface/onSurfaceVariant/primary/error). GPS status dots become themed circles (primary/error) so they survive the red filter; red marker keeps the original pnt drawable. 2. Settings cards unclamped: - OtherCard: fixed height(268.dp) squeezed the last toggle row (spacing 42/42/42/15px on device); drop the fixed height. - CardCredits: same 268dp + SpaceBetween overflowed, gluing the last thanks entry to the warranty line; drop fixed height, use spacedBy(8.dp) and insert 24dp before the warranty text. 3. Branding: - Settings top title: "Look4Sat v%s" -> "Look4Sat Pro v%s" (en/tr); title Text no longer marquees and wraps instead (heightIn(min=48)). - APK asset name: look4sat-<ver>.apk -> Look4Sat-Pro-<ver>.apk. - What's-new dialog (pass_whatsnew_message) rewritten in all three locales (en/zh/tr) with this release's changes; zh gets its own localized title "Look4Sat Pro 更新内容". Verified: roaming/settings/passes/app compile, 11 unit tests pass.
fix(roaming): stretch side cells to 80dp like the reference RelativeLayout
2026-08-03 15:46:21 +00:00 · 2026-08-03 15:22:08 +00:00 · 2026-08-03 15:09:45 +00:00 · 2026-08-03 14:55:46 +00:00 · 2026-08-03 14:29:44 +00:00 · 2026-08-03 12:55:37 +00:00
23 changed files with 1143 additions and 46 deletions
@@ -39,19 +39,22 @@ jobs:
        run: |
          echo "${{ secrets.KEY_STORE }}" | base64 -d > keystore.jks
          APK=$(find app/build/outputs/apk/release -name "*.apk" | head -1)
+          VERSION=${TAG_NAME#v}
+          SIGNED_APK="app/build/outputs/apk/release/Look4Sat-Pro-${VERSION}.apk"
          BUILD_TOOLS=$(ls -d ${ANDROID_HOME}/build-tools/*/ | sort -V | tail -1)
          ${BUILD_TOOLS}apksigner sign \
            --ks keystore.jks \
            --ks-pass pass:${{ secrets.KEY_STORE_PASSWORD }} \
            --ks-key-alias ${{ secrets.KEY_ALIAS }} \
            --key-pass pass:${{ secrets.KEY_PASSWORD }} \
-            --out app/build/outputs/apk/release/look4sat.apk \
+            --out "$SIGNED_APK" \
            "$APK"
          rm keystore.jks
+          echo "SIGNED_APK=$SIGNED_APK" >> "$GITHUB_ENV"

      - name: Create Release
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          gh release create $TAG_NAME --title=$TAG_NAME --generate-notes
-          gh release upload $TAG_NAME app/build/outputs/apk/release/look4sat.apk
+          gh release upload $TAG_NAME "$SIGNED_APK"
@@ -39,8 +39,7 @@ captures/
 .idea/

 # Keystore files
-# Uncomment the following line if you do not want to check your keystore files in.
-#*.jks
+*.jks
 /*.properties
 /keystore.properties
 /app/keystore.jks
@@ -1,3 +1,29 @@
+import java.util.Properties
+
 plugins {
    alias(libs.plugins.convention.applicationPlugin)
 }
+
+// Load signing config from keystore.properties (gitignored, never commit credentials)
+val keystoreProperties = Properties().apply {
+    val propsFile = rootProject.file("keystore.properties")
+    if (propsFile.exists()) propsFile.inputStream().use { load(it) }
+}
+
+android {
+    signingConfigs {
+        if (keystoreProperties["storeFile"] != null) {
+            create("release") {
+                storeFile = rootProject.file(keystoreProperties["storeFile"] as String)
+                storePassword = keystoreProperties["storePassword"] as String
+                keyAlias = keystoreProperties["keyAlias"] as String
+                keyPassword = keystoreProperties["keyPassword"] as String
+            }
+        }
+    }
+    buildTypes {
+        release {
+            signingConfig = signingConfigs.findByName("release")
+        }
+    }
+}
@@ -85,6 +85,7 @@ import com.rtbishop.look4sat.feature.mutual.MutualScreen
 import com.rtbishop.look4sat.feature.mutual.MutualViewModel
 import com.rtbishop.look4sat.feature.passes.PassesDestination
 import com.rtbishop.look4sat.feature.radar.RadarDestination
+import com.rtbishop.look4sat.feature.roaming.RoamingScreen
 import com.rtbishop.look4sat.feature.satellites.SatellitesDestination
 import com.rtbishop.look4sat.feature.settings.SettingsDestination

@@ -130,7 +131,7 @@ fun MainScreen(navigateToRadar: () -> Unit = {}) {
    val currentKey = backStack.lastOrNull()
    val navigateBack: () -> Unit = { backStack.removeLastOrNull() }
    val fadeTransition = fadeIn(animationSpec = tween(350)) togetherWith fadeOut(animationSpec = tween(350))
-    val navItems = listOf(Screen.Satellites, Screen.Passes, Screen.Radar, Screen.Mutual, Screen.Map, Screen.Settings)
+    val navItems = listOf(Screen.Satellites, Screen.Passes, Screen.Radar, Screen.Mutual, Screen.Roaming, Screen.Map, Screen.Settings)

    val context = LocalContext.current
    val container = (context.applicationContext as IContainerProvider).getMainContainer()
@@ -224,6 +225,9 @@ fun MainScreen(navigateToRadar: () -> Unit = {}) {
                                }
                            )
                        }
+                        entry<Screen.Roaming> {
+                            RoamingScreen()
+                        }
                        entry<Screen.Settings> {
                            SettingsDestination()
                        }
@@ -35,6 +35,7 @@ internal class ApplicationPlugin : Plugin<Project> {
            implementation(project(":feature:mutual"))
            implementation(project(":feature:passes"))
            implementation(project(":feature:radar"))
+            implementation(project(":feature:roaming"))
            implementation(project(":feature:satellites"))
            implementation(project(":feature:settings"))
            implementation(libs.androidx.core.splashscreen)
@@ -213,8 +213,8 @@ class SettingsRepo(
    }

    private fun setStationPosition(latitude: Double, longitude: Double, altitude: Double, locator: String) {
-        val newLat = latitude.round(4)
-        val newLon = longitude.round(4)
+        val newLat = latitude.round(5)
+        val newLon = longitude.round(5)
        val newAlt = altitude.round(1)
        val timestamp = System.currentTimeMillis()
        println("Received new Position($newLat, $newLon, $newAlt) & Locator $locator")
@@ -63,7 +63,7 @@ fun qthToPosition(locator: String): GeoPos? {
            latitude += 1.0 / 48.0
        }
    }
-    return GeoPos(latitude.round(4), longitude.round(4))
+    return GeoPos(latitude.round(6), longitude.round(6))
 }

 /**
@@ -100,3 +100,47 @@ private fun isValidPosition(lat: Double, lon: Double): Boolean {
 private fun isValidLocator(locator: String): Boolean {
    return locator.matches("[a-xA-X]{2}\\d{2}[a-xA-X]{2}(?:\\d{2}(?:[a-xA-X]{2})?)?".toRegex())
 }
+
+/**
+ * Returns the 4-char field+square part of a locator, e.g. "OL42ih45" -> "OL42".
+ * A 4-char input is returned as-is when valid.
+ */
+fun qthToSquare(locator: String): String {
+    val upper = locator.trim().uppercase()
+    return when {
+        upper.length >= 4 && isValidLocator(upper) -> upper.take(4)
+        upper.length == 4 && upper.matches("[a-xA-X]{2}\\d{2}".toRegex()) -> upper
+        else -> "----"
+    }
+}
+
+/**
+ * Builds the 3x3 grid of 4-char squares surrounding [square] (e.g. "OL42").
+ * Row 0 = north (lat +1), col 0 = west (lon -1). Handles field/square carry
+ * at boundaries (e.g. "AA00" wraps to "RR99" at the south-west corner).
+ * Mirrors the neighbor logic decompiled from the QTH定位器 app.
+ */
+fun qthNeighbors(square: String): List<String> {
+    if (square.length != 4) return emptyList()
+    val lonField = (square[0].uppercaseChar().code - 65).coerceIn(0, 17)
+    val latField = (square[1].uppercaseChar().code - 65).coerceIn(0, 17)
+    val lonSquare = square[2].digitToCharOrNull() ?: return emptyList()
+    val latSquare = square[3].digitToCharOrNull() ?: return emptyList()
+    val result = mutableListOf<String>()
+    for (dLat in 1 downTo -1) {          // north -> south
+        for (dLon in -1..1) {            // west -> east
+            var lf = lonField
+            var tf = latField
+            var ls = lonSquare + dLon
+            var ts = latSquare + dLat
+            if (ls < 0) { lf -= 1; ls = 9 } else if (ls > 9) { lf += 1; ls = 0 }
+            if (ts < 0) { tf -= 1; ts = 9 } else if (ts > 9) { tf += 1; ts = 0 }
+            lf = (lf + 18) % 18
+            tf = (tf + 18) % 18
+            result += "${('A' + lf).toChar()}${('A' + tf).toChar()}$ls$ts"
+        }
+    }
+    return result
+}
+
+private fun Char.digitToCharOrNull(): Int? = digitToIntOrNull()
@@ -18,7 +18,9 @@
 package com.rtbishop.look4sat.core.domain

 import com.rtbishop.look4sat.core.domain.utility.positionToQth
+import com.rtbishop.look4sat.core.domain.utility.qthNeighbors
 import com.rtbishop.look4sat.core.domain.utility.qthToPosition
+import com.rtbishop.look4sat.core.domain.utility.qthToSquare
 import org.junit.Test

 class QthConverterTest {
@@ -26,14 +28,14 @@ class QthConverterTest {
    @Test
    fun `Given valid QTH returns correct POS`() {
        var result = qthToPosition("io91VL39FX")
-        assert(result?.latitude == 51.4999 && result.longitude == -0.2231)
+        assert(result?.latitude == 51.499913 && result.longitude == -0.22309)
        result = qthToPosition("gf15vc")
-        assert(result?.latitude == -34.8958 && result.longitude == -56.2083)
+        assert(result?.latitude == -34.895833 && result.longitude == -56.208333)
        // 8-char locators: finer 30" x 15" cell center
        result = qthToPosition("io91vl47")
-        assert(result?.latitude == 51.4896 && result.longitude == -0.2125)
+        assert(result?.latitude == 51.489583 && result.longitude == -0.2125)
        result = qthToPosition("jn58td25")
-        assert(result?.latitude == 48.1479 && result.longitude == 11.6042)
+        assert(result?.latitude == 48.147917 && result.longitude == 11.604167)
    }

    @Test
@@ -82,4 +84,42 @@ class QthConverterTest {
            assert(qth == qth2) { "Roundtrip failed for ($lat, $lon): $qth -> $qth2" }
        }
    }
+
+    @Test
+    fun `Given square returns correct 3x3 neighbors`() {
+        // Reference grid from the QTH定位器 screenshot: OL42
+        val neighbors = qthNeighbors("OL42")
+        assert(neighbors == listOf(
+            "OL33", "OL43", "OL53",
+            "OL32", "OL42", "OL52",
+            "OL31", "OL41", "OL51"
+        )) { "OL42 grid mismatch: $neighbors" }
+        // Center cell must be the input itself
+        assert(neighbors[4] == "OL42")
+        // 9 cells, all distinct
+        assert(neighbors.size == 9 && neighbors.toSet().size == 9)
+    }
+
+    @Test
+    fun `Given boundary square wraps fields correctly`() {
+        // South-west corner: AA00 neighbors wrap to RR99 / RA90 etc.
+        val sw = qthNeighbors("AA00")
+        assert(sw.size == 9 && sw.toSet().size == 9)
+        assert(sw[0] == "RA91" && sw[4] == "AA00" && sw[6] == "RR99" && sw[8] == "AR19")
+        // North-east corner: RR99 wraps to AA00
+        val ne = qthNeighbors("RR99")
+        assert(ne.size == 9 && ne.toSet().size == 9)
+        assert(ne[0] == "RA80" && ne[4] == "RR99" && ne[8] == "AR08")
+        // Field boundary: IO91's east neighbors cross into J field
+        val london = qthNeighbors("IO91")
+        assert(london[2] == "JO02" && london[5] == "JO01")
+    }
+
+    @Test
+    fun `Given full locator returns square part`() {
+        assert(qthToSquare("OL42ih45") == "OL42")
+        assert(qthToSquare("io91VL39FX") == "IO91")
+        assert(qthToSquare("JN58") == "JN58")
+        assert(qthToSquare("garbage!!") == "----")
+    }
 }
@@ -38,6 +38,9 @@ sealed class Screen(val iconResId: Int, val titleResId: Int) : NavKey {
    @Serializable
    data object Mutual : Screen(R.drawable.ic_match, R.string.nav_mutual)

+    @Serializable
+    data object Roaming : Screen(R.drawable.ic_roaming, R.string.nav_roaming)
+
    @Serializable
    data object Settings : Screen(R.drawable.ic_settings, R.string.nav_prefs)
 }
@@ -0,0 +1,25 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="96"
+    android:viewportHeight="96">
+
+    <!-- Crosshair / grid-locator style icon: concentric rings + center dot -->
+    <path
+        android:fillColor="@android:color/transparent"
+        android:strokeColor="@android:color/white"
+        android:strokeWidth="6"
+        android:strokeLineCap="round"
+        android:strokeLineJoin="round"
+        android:pathData="M 48 12 L 48 84 M 12 48 L 84 48" />
+
+    <path
+        android:fillColor="@android:color/transparent"
+        android:strokeColor="@android:color/white"
+        android:strokeWidth="6"
+        android:pathData="M 48 26 A 22 22 0 1 0 48.1 26" />
+
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M 44 44 L 52 44 L 52 52 L 44 52 Z" />
+</vector>
@@ -51,11 +51,11 @@
        \n\nDoğru tahminler alabilmek için veritabanını en az haftada bir güncelleyin.</string>
    <string name="pass_whatsnew_title" translatable="false">What\'s new in Look4Sat</string>
    <string name="pass_whatsnew_message" translatable="false">
-        * Switched to short-form commands in NetworkReporter, by theojalba
-        \n* Added CAT radio control for full-duplex SAT operation, by jcmerg
-        \n* Added normalized time for passes AOS/LOS, fixed refresh state bug
-        \n* Added multiple performance tweaks, improved passes calculation
-        \n* Fixed UTC pass time problem mentioned in issue #201
+        * Roaming sayfası QTH定位器 2.0'dan birebir taşındı: 8 haneli konum, 3x3 ızgara, kırmızı işaret, canlı GPS
+        \n\n* İçeriğin sistem durum/gezinme çubuklarıyla çakışması düzeltildi; ızgara sütunları referans düzenle eşleşiyor
+        \n\n* Roaming sayfası renkleri uygulama temasını takip eder - kırmızı gece modunda tamamen görünür
+        \n\n* Ayarlar: sıkışan anahtar satırları ve teşekkür aralığı düzeltildi
+        \n\n* Uygulama adı artık Look4Sat Pro
    </string>

    <!-- Radar screen -->
@@ -103,7 +103,7 @@
    <string name="map_visible">Görünür</string>

    <!-- Settings screen -->
-    <string name="prefs_app_title" translatable="false">Look4Sat v%s</string>
+    <string name="prefs_app_title" translatable="false">Look4Sat Pro v%s</string>
    <string name="prefs_app_url" translatable="false">https://play.google.com/store/apps/details?id=com.rtbishop.look4sat</string>
    <string name="prefs_donate_title">Bağış yap</string>
    <string name="prefs_donate_url" translatable="false">https://ko-fi.com/rt_bishop</string>
@@ -192,14 +192,16 @@
    <string name="prefs_highlight_mid">Orta %1$d-%2$d°</string>
    <string name="prefs_highlight_high">Yüksek &gt; %1$d°</string>

-    <string name="prefs_outro_title">Teşekkürler</string>
+    <string name="prefs_outro_title">BG7NTA ve orijinal yazar teşekkür eder</string>
    <string name="prefs_outro_thanks" translatable="false">
        • Look4Sat users and contributors!
        \n• David A. B. Johnson (predict4java)
        \n• Dave Moten (predict4java)
        \n• Alexandru Csete (Gpredict)
        \n• Dr T.S. Kelso (Celestrak)
-        \n• Libre Space Foundation (SatNOGS)</string>
+        \n• Libre Space Foundation (SatNOGS)
+        \n• BA7OPF (pass matching feature)
+        \n• BG7NTA</string>
    <string name="prefs_outro_license">Bu uygulama herhangi bir garanti sunmaz</string>

 </resources>
@@ -10,6 +10,7 @@
    <string name="nav_pass">过境</string>
    <string name="nav_radar">雷达</string>
    <string name="nav_mutual">匹配</string>
+    <string name="nav_roaming">漫游</string>
    <string name="nav_map">地图</string>
    <string name="nav_prefs">设置</string>

@@ -38,6 +39,14 @@
    <string name="pass_error_message">没有即将过境的卫星</string>
    <string name="pass_welcome_title">欢迎来到 Look4Sat\!</string>
    <string name="pass_welcome_message">请务必在设置中通过GPS、经纬度或QTH定位您的位置\n建议至少每周更新一次数据库，以确保预测结果的准确性</string>
+    <string name="pass_whatsnew_title">Look4Sat Pro 更新内容</string>
+    <string name="pass_whatsnew_message">
+        * 漫游页完整移植 QTH定位器 2.0：8 位网格、3x3 九宫格、红点查表定位、实时 GPS
+        \n\n* 修复内容被系统状态栏/导航栏遮挡；九宫格列宽与原版一致
+        \n\n* 漫游页配色跟随应用主题，红色夜间模式下清晰可见
+        \n\n* 设置：修复开关行挤压与感谢列表间距
+        \n\n* 应用名现为 Look4Sat Pro
+    </string>

    <!-- Radar screen -->
    <string name="radar_back">后退</string>
@@ -167,7 +176,7 @@
    <string name="prefs_highlight_mid">中 %1$d-%2$d°</string>
    <string name="prefs_highlight_high">高 &gt; %1$d°</string>

-    <string name="prefs_outro_title">我要感谢：</string>
+    <string name="prefs_outro_title">BG7NTA 与原作者感谢：</string>
    <string name="prefs_outro_thanks" translatable="false">
        • Look4Sat 所有用户及贡献者!
        \n• David A. B. Johnson (predict4java)
@@ -175,7 +184,9 @@
        \n• Alexandru Csete (Gpredict)
        \n• Dr T.S. Kelso (Celestrak)
        \n• Libre Space Foundation (SatNOGS)
-        \n• xdsopl 和 Robot36 贡献者!</string>
+        \n• xdsopl 和 Robot36 贡献者!
+        \n• BA7OPF(过境匹配功能)
+        \n• BG7NTA</string>
    <string name="prefs_outro_license">该应用程序不提供任何保修.</string>

 </resources>
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
    <!-- Commmon -->
-    <string name="app_name" translatable="false">Look4Sat</string>
+    <string name="app_name" translatable="false">Look4Sat Pro</string>
    <string name="btn_accept">Accept</string>
    <string name="btn_cancel">Cancel</string>
    <string name="empty_list_message">No data to show</string>
@@ -11,6 +11,7 @@
    <string name="nav_pass">Passes</string>
    <string name="nav_radar">Radar</string>
    <string name="nav_mutual">Match</string>
+    <string name="nav_roaming">Roaming</string>
    <string name="nav_map">Map</string>
    <string name="nav_prefs">Settings</string>

@@ -52,8 +53,11 @@
        \n\nPlease update the database at least weekly to get accurate predictions.</string>
    <string name="pass_whatsnew_title" translatable="false">What\'s new in Look4Sat</string>
    <string name="pass_whatsnew_message" translatable="false">
-        * Added required tweaks to support Android 17 (API 37)
-        \n\n* Added ACCESS_LOCAL_NETWORK permission check to support network data output
+        * Roaming page ported verbatim from QTH定位器 2.0: 8-char locator, 3x3 grid, red marker lookup, live GPS
+        \n\n* Fixed content overlapping the system status/navigation bars; grid columns now match the reference layout
+        \n\n* Roaming page colors follow the app theme - fully visible in red night mode
+        \n\n* Settings: fixed squeezed toggle rows and credits spacing
+        \n\n* App name is now Look4Sat Pro
    </string>

    <!-- Radar screen -->
@@ -111,7 +115,7 @@
    <string name="map_visible">Visible</string>

    <!-- Settings screen -->
-    <string name="prefs_app_title" translatable="false">Look4Sat v%s</string>
+    <string name="prefs_app_title" translatable="false">Look4Sat Pro v%s</string>
    <string name="prefs_app_url" translatable="false">https://play.google.com/store/apps/details?id=com.rtbishop.look4sat</string>
    <string name="prefs_donate_title">Donate</string>
    <string name="prefs_donate_url" translatable="false">https://ko-fi.com/rt_bishop</string>
@@ -202,7 +206,7 @@
    <string name="prefs_highlight_mid">Mid %1$d–%2$d°</string>
    <string name="prefs_highlight_high">High &gt; %1$d°</string>

-    <string name="prefs_outro_title">I would like to say thanks to</string>
+    <string name="prefs_outro_title">BG7NTA &amp; the original author would like to thank</string>
    <string name="prefs_outro_thanks" translatable="false">
        * Look4Sat users and contributors!
        \n* David A. B. Johnson (predict4java)
@@ -211,6 +215,8 @@
        \n* Dr T.S. Kelso (Celestrak)
        \n* Libre Space Foundation (SatNOGS)
        \n* xdsopl and Robot36 contributors!
+        \n* BA7OPF (pass matching feature)
+        \n* BG7NTA
    </string>
    <string name="prefs_outro_license">The app comes with no warranty</string>

@@ -119,9 +119,10 @@ fun RadarViewCompose(
    var cachedSweepColor by remember { mutableStateOf(Color.Unspecified) }
    var trackPath by remember { mutableStateOf(Path()) }
    var trackEffect by remember { mutableStateOf(PathEffect.cornerPathEffect(0f)) }
-    // Station-B overlay track (dashed)
+    // Station-B overlay track (dashed, with the same directional arrow stamp as station A)
    var cachedTrackBRef by remember { mutableStateOf<List<OrbitalPos>?>(null) }
    var trackBPath by remember { mutableStateOf(Path()) }
+    var trackBEffect by remember { mutableStateOf(PathEffect.cornerPathEffect(0f)) }
    // ShaderBrush is cached to avoid allocating a new GPU shader object every frame
    var cachedSweepBrush by remember { mutableStateOf<ShaderBrush?>(null) }

@@ -131,7 +132,10 @@ fun RadarViewCompose(
        if (radius != cachedRadius || items !== cachedItemsRef || trackB !== cachedTrackBRef) {
            trackPath = createTrackPath(items, radius)
            trackEffect = createTrackEffect(trackPath)
-            trackBPath = trackB?.let { createTrackPath(it, radius) } ?: Path()
+            val newTrackBPath = trackB?.let { createTrackPath(it, radius) } ?: Path()
+            trackBPath = newTrackBPath
+            trackBEffect = if (!newTrackBPath.isEmpty) createTrackEffect(newTrackBPath)
+            else PathEffect.cornerPathEffect(0f)
            cachedSweepBrush = makeSweepBrush(center, primaryColor)
            cachedRadius = radius
            cachedItemsRef = items
@@ -148,13 +152,14 @@ fun RadarViewCompose(
            drawElevationLabels(radius, primaryColor, measurer)
            translate(center.x, center.y) {
                drawTrack(trackPath, trackEffect, aimColor, primaryColor)
-                // Station-B overlay: full dashed track + live position dot
-                // (same display mode as the local station: track line + pulsing dot)
+                // Station-B overlay: full dashed track + directional arrows + live position dot
+                // (same display mode as the local station: track line/arrow + pulsing dot)
                if (trackB != null && trackB.isNotEmpty() && !trackBPath.isEmpty) {
                    drawPath(
                        trackBPath, trackBColor,
                        style = Stroke(STROKE_WIDTH, pathEffect = PathEffect.dashPathEffect(floatArrayOf(18f, 12f)))
                    )
+                    drawPath(trackBPath, trackBColor, style = Stroke(pathEffect = trackBEffect))
                }
                trackBPosition?.let { posB ->
                    if (posB.elevation > 0) {
@@ -0,0 +1,11 @@
+plugins {
+    alias(libs.plugins.convention.featurePlugin)
+}
+
+android {
+    namespace = "com.rtbishop.look4sat.feature.roaming"
+}
+
+dependencies {
+    implementation(project(":core:data"))
+}
@@ -0,0 +1,791 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2026 Arty Bishop and contributors.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.feature.roaming
+
+import android.Manifest
+import android.annotation.SuppressLint
+import android.content.Context
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.location.Location
+import android.location.LocationListener
+import android.location.LocationManager
+import android.os.Bundle
+import android.provider.Settings
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.background
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.offset
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.foundation.layout.WindowInsets
+import androidx.compose.foundation.layout.windowInsetsPadding
+import androidx.compose.foundation.layout.systemBars
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.DisposableEffect
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.core.content.ContextCompat
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.Locale
+
+/**
+ * 漫游页 —— 原样照搬自 QTH定位器 2.0 (com.us1pm.gridsquarelocator)。
+ * UI: res/layout/main.xml (结构/尺寸/颜色逐项照搬, 不做任何更改)
+ * 逻辑: MainActivity.showLocation() / checkEnabled() / GPS 实时监听
+ * 红线: UI 与逻辑均不更改, 与成品截图逐像素对齐。
+ */
+@Composable
+fun RoamingScreen() {
+    val context = LocalContext.current
+    var state by remember { mutableStateOf(RoamingState()) }
+    // 照搬 onCreate: 日期固定文本 + 小时前缀(定位时拼接分钟)
+    val dateText = remember { SimpleDateFormat("dd MMM yyyy", Locale.getDefault()).format(Date()) }
+    var hourPrefix by remember { mutableStateOf("") }
+    // 照搬 onCreate: 初始 checkEnabled() -> 红点+设置按钮, 日期隐藏
+    var hasPermission by remember { mutableStateOf(false) }
+    val permissionLauncher = rememberLauncherForActivityResult(
+        ActivityResultContracts.RequestMultiplePermissions()
+    ) { }
+    LaunchedEffect(Unit) {
+        hourPrefix = SimpleDateFormat("HH:mm", Locale.getDefault()).format(Date()).substring(0, 3)
+        val fine = ContextCompat.checkSelfPermission(context, Manifest.permission.ACCESS_FINE_LOCATION) ==
+            PackageManager.PERMISSION_GRANTED
+        val coarse = ContextCompat.checkSelfPermission(context, Manifest.permission.ACCESS_COARSE_LOCATION) ==
+            PackageManager.PERMISSION_GRANTED
+        hasPermission = fine || coarse
+        if (!hasPermission) {
+            permissionLauncher.launch(
+                arrayOf(Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION)
+            )
+        } else {
+            // 照搬 onResume: 绿点+进度条+提示+日期显示, 红点/按钮隐藏
+            state = state.copy(gpsOn = true, gpsOff = false, showSettings = false, showProgress = true, showNotice = true, showDate = true)
+        }
+    }
+    // 照搬 onResume/onPause: GPS + network 监听, 10 秒 / 10 米
+    val locationManager = remember { context.getSystemService(Context.LOCATION_SERVICE) as LocationManager }
+    DisposableEffect(locationManager, hasPermission) {
+        if (hasPermission) {
+            @SuppressLint("MissingPermission")
+            val listener = object : LocationListener {
+                override fun onLocationChanged(location: Location) {
+                    // 照搬 showLocation 开头: 只接受 gps / network provider
+                    if (location.provider != "gps" && location.provider != "network") return
+                    state = roamingStateFromLocation(location.latitude, location.longitude, location.time, hourPrefix)
+                        .copy(date = dateText)
+                }
+
+                override fun onProviderDisabled(provider: String) {
+                    // 照搬 checkEnabled: 红点+按钮, 日期隐藏
+                    state = state.copy(gpsOn = false, gpsOff = true, showSettings = true, showProgress = false, showNotice = false, showDate = false)
+                }
+
+                override fun onProviderEnabled(provider: String) {
+                    state = state.copy(gpsOn = true, gpsOff = false, showSettings = false, showProgress = true, showNotice = true, showDate = true)
+                }
+
+                @Deprecated("Deprecated in Java")
+                override fun onStatusChanged(provider: String?, status: Int, extras: Bundle?) = Unit
+            }
+            try {
+                locationManager.requestLocationUpdates("gps", 10_000L, 10f, listener)
+                locationManager.requestLocationUpdates("network", 10_000L, 10f, listener)
+            } catch (_: SecurityException) {
+            }
+            onDispose { locationManager.removeUpdates(listener) }
+        } else {
+            onDispose { }
+        }
+    }
+    // 照搬 res/layout/main.xml: 浅色页面, 蓝色信息区, 43sp 定位码, 3x3 九宫格, 底部版权
+    // 按用户要求: 上下往内缩进系统栏安全区, 避免内容被状态栏/导航栏遮挡
+    Column(
+        modifier = Modifier
+            .fillMaxSize()
+            .background(MaterialTheme.colorScheme.background)
+            .windowInsetsPadding(WindowInsets.systemBars)
+    ) {
+        // relativeLayout7: 顶部 GPS 状态条, 25dp 高, holo_blue_bright
+        Box(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(2.dp)
+                .height(25.dp)
+                .background(MaterialTheme.colorScheme.surfaceVariant)
+        ) {
+            Row(modifier = Modifier.fillMaxSize(), verticalAlignment = Alignment.CenterVertically) {
+                // tvTitleGPS: "GPS" 14sp 黑, 左 8dp
+                Text(
+                    text = "GPS",
+                    fontSize = 14.sp,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.padding(start = 8.dp)
+                )
+                // imGps: toRightOf tvTitleGPS + marginLeft 15dp (成品 main.xml)
+                Spacer(modifier = Modifier.width(15.dp))
+                // imGps: 绿点 (15dp, 主题色 primary -> 夜间滤镜下可见)
+                if (state.gpsOn) {
+                    Box(
+                        modifier = Modifier
+                            .size(15.dp)
+                            .background(MaterialTheme.colorScheme.primary, CircleShape)
+                    )
+                }
+                // imGpsOff: 红点叠层 (15dp, 主题色 error)
+                if (state.gpsOff) {
+                    Box(
+                        modifier = Modifier
+                            .size(15.dp)
+                            .background(MaterialTheme.colorScheme.error, CircleShape)
+                    )
+                }
+                Spacer(modifier = Modifier.weight(1f))
+                // tvDate: 14sp 黑, 居中
+                if (state.showDate) {
+                    Text(text = state.date.ifEmpty { dateText }, fontSize = 14.sp, color = MaterialTheme.colorScheme.onSurfaceVariant)
+                }
+                Spacer(modifier = Modifier.weight(1f))
+                // tvTime: 14sp 黑, 右对齐
+                Text(
+                    text = state.time,
+                    fontSize = 14.sp,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.padding(end = 8.dp)
+                )
+            }
+            // btnLocationSettings: 黄色按钮, 居中
+            // btnLocationSettings: 成品 #faf8f54a 半透明黄, 14sp 黑字, 居中
+            if (state.showSettings) {
+                Box(
+                    modifier = Modifier
+                        .align(Alignment.Center)
+                        .background(MaterialTheme.colorScheme.primary)
+                        .clickable { context.startActivity(Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS)) }
+                        .padding(horizontal = 5.dp),
+                    contentAlignment = Alignment.Center
+                ) {
+                    Text(text = "设置启用GPS", fontSize = 14.sp, color = MaterialTheme.colorScheme.onPrimary)
+                }
+            }
+        }
+        // linearLayout4: 经纬度区, holo_blue_bright
+        Column(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = 2.dp)
+                .background(MaterialTheme.colorScheme.surfaceVariant)
+        ) {
+            // 纬度行: tvLati 16sp 黑 左 8dp | tvLat 右对齐 3dp
+            Row(modifier = Modifier.fillMaxWidth().padding(vertical = 2.dp), verticalAlignment = Alignment.CenterVertically) {
+                Text(text = state.latLabel, fontSize = 16.sp, color = MaterialTheme.colorScheme.onSurfaceVariant, modifier = Modifier.padding(start = 8.dp))
+                Spacer(modifier = Modifier.weight(1f))
+                Text(text = state.latValue, fontSize = 14.sp, color = MaterialTheme.colorScheme.onSurfaceVariant, modifier = Modifier.padding(end = 3.dp))
+            }
+            // 经度行
+            Row(modifier = Modifier.fillMaxWidth().padding(vertical = 2.dp), verticalAlignment = Alignment.CenterVertically) {
+                Text(text = state.lonLabel, fontSize = 16.sp, color = MaterialTheme.colorScheme.onSurfaceVariant, modifier = Modifier.padding(start = 8.dp))
+                Spacer(modifier = Modifier.weight(1f))
+                Text(text = state.lonValue, fontSize = 14.sp, color = MaterialTheme.colorScheme.onSurfaceVariant, modifier = Modifier.padding(end = 3.dp))
+            }
+        }
+        // relativeLayout6: 定位码区, 43sp bold 黑居中
+        Box(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(2.dp)
+                .background(MaterialTheme.colorScheme.surfaceVariant)
+        ) {
+            Text(
+                text = state.loc,
+                fontSize = 43.sp,
+                fontWeight = FontWeight.Bold,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                textAlign = TextAlign.Center,
+                modifier = Modifier.fillMaxWidth()
+            )
+            // progressBar: 加载中, 居中
+            if (state.showProgress) {
+                CircularProgressIndicator(
+                    modifier = Modifier.size(24.dp).align(Alignment.Center),
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    strokeWidth = 2.dp
+                )
+            }
+            // tvNotice: 提示文字, 居中顶部
+            if (state.showNotice) {
+                Text(
+                    text = "请稍等，加载可能需要几分钟的时间。",
+                    fontSize = 16.sp,
+                    fontStyle = androidx.compose.ui.text.font.FontStyle.Italic,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.align(Alignment.TopCenter).padding(top = 2.dp)
+                )
+            }
+        }
+        // relativeLayout: 九宫格, 占满剩余, 底部 15dp
+        // 用 Box 等价 RelativeLayout 布局: 左格贴左 / 中格水平居中 / 右格贴右 (成品 main.xml)
+        Column(modifier = Modifier.fillMaxWidth().weight(1f).padding(bottom = 15.dp)) {
+            // 行1: relativeLayout5 (上排: 纬度 +1)
+            Box(modifier = Modifier.fillMaxWidth().weight(1f)) {
+                GridCell(text = state.grids[0], modifier = Modifier.width(80.dp).fillMaxHeight().align(Alignment.CenterStart))
+                GridCell(text = state.grids[1], modifier = Modifier.width(200.dp).fillMaxHeight().align(Alignment.Center))
+                GridCell(text = state.grids[2], modifier = Modifier.width(80.dp).fillMaxHeight().align(Alignment.CenterEnd))
+            }
+            // 行2: relativeLayout4, 205dp 高 (中排: 中央)
+            Box(modifier = Modifier.fillMaxWidth().height(205.dp)) {
+                GridCell(text = state.grids[3], modifier = Modifier.width(80.dp).fillMaxHeight().align(Alignment.CenterStart))
+                // 中央列: tv22 (100x80dp centerInParent) 叠在 linearLayout3 (200x200dp) 之上
+                Box(modifier = Modifier.width(200.dp).fillMaxHeight().align(Alignment.Center)) {
+                    // linearLayout3: 200x200dp, marginTop 2dp, holo_blue_bright
+                    Box(
+                        modifier = Modifier
+                            .align(Alignment.TopCenter)
+                            .offset(y = 2.dp)
+                            .size(width = 200.dp, height = 200.dp)
+                            .background(MaterialTheme.colorScheme.surfaceVariant)
+                    ) {
+                        // iv: 红点 10x10dp, top|left, leftMargin/topMargin 查表绝对定位
+                        Image(
+                            painter = painterResource(R.drawable.roam_pnt),
+                            contentDescription = null,
+                            modifier = Modifier
+                                .size(10.dp)
+                                .offset(x = state.markerLeft.dp, y = state.markerTop.dp)
+                        )
+                    }
+                    // tv22: 100x80dp centerInParent, 30sp bold, textColorHighlight(白)
+                    Text(
+                        text = state.grids[4],
+                        fontSize = 30.sp,
+                        fontWeight = FontWeight.Bold,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        textAlign = TextAlign.Center,
+                        modifier = Modifier
+                            .size(width = 100.dp, height = 80.dp)
+                            .align(Alignment.Center)
+                    )
+                }
+                GridCell(text = state.grids[5], modifier = Modifier.width(80.dp).fillMaxHeight().align(Alignment.CenterEnd))
+            }
+            // 行3: relativeLayout3 (下排: 纬度 -1)
+            Box(modifier = Modifier.fillMaxWidth().weight(1f)) {
+                GridCell(text = state.grids[6], modifier = Modifier.width(80.dp).fillMaxHeight().align(Alignment.CenterStart))
+                GridCell(text = state.grids[7], modifier = Modifier.width(200.dp).fillMaxHeight().align(Alignment.Center))
+                GridCell(text = state.grids[8], modifier = Modifier.width(80.dp).fillMaxHeight().align(Alignment.CenterEnd))
+            }
+        }
+        // tv4: 底部版权, 10sp 黑 (往上拉, 底部预留空间避免被导航栏遮挡)
+        Text(
+            text = "制作：US1PM  汉化：BA7LCE",
+            fontSize = 10.sp,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+            textAlign = TextAlign.Center,
+            modifier = Modifier.fillMaxWidth().padding(bottom = 10.dp)
+        )
+    }
+}
+
+// 周边格: 60/200/60dp, #0BACF1, bold 居中, 2dp margin (照搬 tv11/tv13/tv21/tv23/tv31/tv33)
+@Composable
+private fun GridCell(text: String, modifier: Modifier) {
+    Box(
+        modifier = modifier
+            .padding(2.dp)
+            .background(MaterialTheme.colorScheme.surface),
+        contentAlignment = Alignment.Center
+    ) {
+        Text(
+            text = text,
+            fontSize = 14.sp,
+            fontWeight = FontWeight.Bold,
+            color = MaterialTheme.colorScheme.onSurface,
+            textAlign = TextAlign.Center
+        )
+    }
+}
+
+/**
+ * 照搬 MainActivity.showLocation() 的状态。
+ * 网格/九宫格/红点查表与成品逐行一致。
+ */
+data class RoamingState(
+    val date: String = "",
+    val time: String = "",
+    val latLabel: String = "纬度",
+    val latValue: String = "",
+    val lonLabel: String = "经度",
+    val lonValue: String = "",
+    val loc: String = "",
+    val grids: List<String> = List(9) { "" },
+    /** 红点 leftMargin(dp), 经度第 3 对字符查表 */
+    val markerLeft: Int = 0,
+    /** 红点 topMargin(dp), 纬度第 3 对字符查表(屏幕 Y 反转) */
+    val markerTop: Int = 0,
+    val gpsOn: Boolean = false,
+    val gpsOff: Boolean = true,
+    val showSettings: Boolean = true,
+    val showProgress: Boolean = false,
+    val showNotice: Boolean = false,
+    val showDate: Boolean = false
+)
+
+/**
+ * 照搬 showLocation() 的完整计算: 时间/经纬度 DMS/8 位网格/九宫格/红点查表。
+ */
+fun roamingStateFromLocation(lat: Double, lon: Double, fixTime: Long, hourPrefix: String): RoamingState {
+    // 照搬: tvTime = 缓存小时前缀 + 定位时间分钟
+    val minute = SimpleDateFormat("mm", Locale.getDefault()).format(Date(fixTime))
+    val time = hourPrefix + minute
+    // 方向字符
+    val ew = if (lon >= 0.0) "E" else "W"
+    val ns = if (lat >= 0.0) "N" else "S"
+    // 照搬: 纬度 DMS (String.valueOf 无补零)
+    val latAbs = if (lat < 0.0) -lat else lat
+    val latDeg = latAbs.toInt()
+    val latMinFull = (latAbs - latDeg) * 60.0
+    val latMin = latMinFull.toInt()
+    val latSec = ((latMinFull - latMin) * 60.0).toInt()
+    val latLabel = "纬度  $latDeg° $latMin' $latSec\" $ns"
+    val latValue = "$lat° "
+    // 照搬: 经度 DMS
+    val lonAbs = if (lon < 0.0) -lon else lon
+    val lonDeg = lonAbs.toInt()
+    val lonMinFull = (lonAbs - lonDeg) * 60.0
+    val lonMin = lonMinFull.toInt()
+    val lonSec = ((lonMinFull - lonMin) * 60.0).toInt()
+    val lonLabel = "经度 $lonDeg° $lonMin' $lonSec\" $ew"
+    val lonValue = "$lon° "
+    // 照搬: 8 位网格编码 (区间查表)
+    val (str, str2, str3, str4) = encodeLon(lon)
+    val (str5, str6, str38, str9) = encodeLat(lat)
+    val loc = str + str5 + str2 + str6 + str3 + str38 + str4 + str9
+    // 照搬: 九宫格 parseInt3 五分支
+    val grids = buildGrids(str, str5, str2, str6, str3, str38)
+    // 照搬: 红点查表 (第 3 对字符)
+    val markerLeft = lonMargin[str3.firstOrNull()] ?: 0
+    val markerTop = latMargin[str38.firstOrNull()] ?: 0
+    return RoamingState(
+        time = time,
+        latLabel = latLabel,
+        latValue = latValue,
+        lonLabel = lonLabel,
+        lonValue = lonValue,
+        loc = loc,
+        grids = grids,
+        markerLeft = markerLeft,
+        markerTop = markerTop,
+        gpsOn = true,
+        gpsOff = false,
+        showSettings = false,
+        showProgress = false,
+        showNotice = false,
+        showDate = true
+    )
+}
+
+// 红点 leftMargin 查表 (MainActivity 1286-1386 行): 经度第 3 对 a..x -> -2..190 dp
+private val lonMargin = mapOf(
+    'a' to -2, 'b' to 8, 'c' to 16, 'd' to 24, 'e' to 32, 'f' to 40, 'g' to 48, 'h' to 56,
+    'i' to 65, 'j' to 74, 'k' to 83, 'l' to 92, 'm' to 101, 'n' to 110, 'o' to 119, 'p' to 128,
+    'q' to 137, 'r' to 146, 's' to 155, 't' to 163, 'u' to 171, 'v' to 179, 'w' to 184, 'x' to 190
+)
+
+// 红点 topMargin 查表 (MainActivity 1315-1363 行): 纬度第 3 对 a..x -> 190..-2 dp (屏幕 Y 反转)
+private val latMargin = mapOf(
+    'a' to 190, 'b' to 182, 'c' to 174, 'd' to 169, 'e' to 163, 'f' to 155, 'g' to 146, 'h' to 137,
+    'i' to 128, 'j' to 119, 'k' to 110, 'l' to 101, 'm' to 92, 'n' to 83, 'o' to 74, 'p' to 65,
+    'q' to 56, 'r' to 48, 's' to 40, 't' to 32, 'u' to 24, 'v' to 16, 'w' to 8, 'x' to -2
+)
+
+// 照搬 311-611 行: 经度 -> (20°区字母, 2°数字, 2'字母, 30"数字)
+private fun encodeLon(inputLon: Double): List<String> {
+    var longitude = inputLon
+    var d = 0.0
+    val str = when {
+        (longitude >= -180.0) && (longitude <= -160.0) -> { longitude += 180.0; "A" }
+        (longitude >= -160.0) && (longitude <= -140.0) -> { longitude += 160.0; "B" }
+        (longitude >= -140.0) && (longitude <= -120.0) -> { longitude += 140.0; "C" }
+        (longitude >= -120.0) && (longitude <= -100.0) -> { longitude += 120.0; "D" }
+        (longitude >= -100.0) && (longitude <= -80.0) -> { longitude += 100.0; "E" }
+        (longitude >= -80.0) && (longitude <= -60.0) -> { longitude += 80.0; "F" }
+        (longitude >= -60.0) && (longitude <= -40.0) -> { longitude += 60.0; "G" }
+        (longitude >= -40.0) && (longitude <= -20.0) -> { longitude += 40.0; "H" }
+        (longitude >= -20.0) && (longitude <= 0.0) -> { longitude += 20.0; "I" }
+        (longitude >= 0.0) && (longitude <= 20.0) -> "J"
+        (longitude >= 20.0) && (longitude <= 40.0) -> { longitude -= 20.0; "K" }
+        (longitude >= 40.0) && (longitude <= 60.0) -> { longitude -= 40.0; "L" }
+        (longitude >= 60.0) && (longitude <= 80.0) -> { longitude -= 60.0; "M" }
+        (longitude >= 80.0) && (longitude <= 100.0) -> { longitude -= 80.0; "N" }
+        (longitude >= 100.0) && (longitude <= 120.0) -> { longitude -= 100.0; "O" }
+        (longitude >= 120.0) && (longitude <= 140.0) -> { longitude -= 120.0; "P" }
+        (longitude >= 140.0) && (longitude <= 160.0) -> { longitude -= 140.0; "Q" }
+        (longitude >= 160.0) && (longitude <= 180.0) -> { longitude -= 160.0; "R" }
+        else -> { longitude = 0.0; " " }
+    }
+    val str2 = when {
+        ((longitude >= 0.0) && (longitude <= 2.0)) || ((longitude >= -20.0) && (longitude <= -18.0)) -> { d = longitude * 60.0; "0" }
+        ((longitude >= 2.0) && (longitude <= 4.0)) || ((longitude >= -18.0) && (longitude <= -16.0)) -> { d = (longitude - 2.0) * 60.0; "1" }
+        ((longitude >= 4.0) && (longitude <= 6.0)) || ((longitude >= -16.0) && (longitude <= -14.0)) -> { d = (longitude - 4.0) * 60.0; "2" }
+        ((longitude >= 6.0) && (longitude <= 8.0)) || ((longitude >= -14.0) && (longitude <= -12.0)) -> { d = (longitude - 6.0) * 60.0; "3" }
+        ((longitude >= 8.0) && (longitude <= 10.0)) || ((longitude >= -12.0) && (longitude <= -10.0)) -> { d = (longitude - 8.0) * 60.0; "4" }
+        ((longitude >= 10.0) && (longitude <= 12.0)) || ((longitude >= -10.0) && (longitude <= -8.0)) -> { d = (longitude - 10.0) * 60.0; "5" }
+        ((longitude >= 12.0) && (longitude <= 14.0)) || ((longitude >= -8.0) && (longitude <= -6.0)) -> { d = (longitude - 12.0) * 60.0; "6" }
+        ((longitude >= 14.0) && (longitude <= 16.0)) || ((longitude >= -6.0) && (longitude <= -4.0)) -> { d = (longitude - 14.0) * 60.0; "7" }
+        ((longitude >= 16.0) && (longitude <= 18.0)) || ((longitude >= -4.0) && (longitude <= -2.0)) -> { d = (longitude - 16.0) * 60.0; "8" }
+        ((longitude >= 18.0) && (longitude <= 20.0)) || ((longitude >= -2.0) && (longitude <= 0.0)) -> { d = (longitude - 18.0) * 60.0; "9" }
+        else -> { d = 0.0; " " }
+    }
+    val str3 = when {
+        ((d >= 0.0) && (d <= 5.0)) || ((d >= -120.0) && (d <= -115.0)) -> { longitude = d * 60.0; "a" }
+        ((d >= 5.0) && (d <= 10.0)) || ((d >= -115.0) && (d <= -110.0)) -> { longitude = (d - 5.0) * 60.0; "b" }
+        ((d >= 10.0) && (d <= 15.0)) || ((d >= -110.0) && (d <= -105.0)) -> { longitude = (d - 10.0) * 60.0; "c" }
+        ((d >= 15.0) && (d <= 20.0)) || ((d >= -105.0) && (d <= -100.0)) -> { longitude = (d - 15.0) * 60.0; "d" }
+        ((d >= 20.0) && (d <= 25.0)) || ((d >= -100.0) && (d <= -95.0)) -> { longitude = (d - 20.0) * 60.0; "e" }
+        ((d >= 25.0) && (d <= 30.0)) || ((d >= -95.0) && (d <= -90.0)) -> { longitude = (d - 25.0) * 60.0; "f" }
+        ((d >= 30.0) && (d <= 35.0)) || ((d >= -90.0) && (d <= -85.0)) -> { longitude = (d - 30.0) * 60.0; "g" }
+        ((d >= 35.0) && (d <= 40.0)) || ((d >= -85.0) && (d <= -80.0)) -> { longitude = (d - 35.0) * 60.0; "h" }
+        ((d >= 40.0) && (d <= 45.0)) || ((d >= -80.0) && (d <= -75.0)) -> { longitude = (d - 40.0) * 60.0; "i" }
+        ((d >= 45.0) && (d <= 50.0)) || ((d >= -75.0) && (d <= -70.0)) -> { longitude = (d - 45.0) * 60.0; "j" }
+        ((d >= 50.0) && (d <= 55.0)) || ((d >= -70.0) && (d <= -65.0)) -> { longitude = (d - 50.0) * 60.0; "k" }
+        ((d >= 55.0) && (d <= 60.0)) || ((d >= -65.0) && (d <= -60.0)) -> { longitude = (d - 55.0) * 60.0; "l" }
+        ((d >= 60.0) && (d <= 65.0)) || ((d >= -60.0) && (d <= -55.0)) -> { longitude = (d - 60.0) * 60.0; "m" }
+        ((d >= 65.0) && (d <= 70.0)) || ((d >= -55.0) && (d <= -50.0)) -> { longitude = (d - 65.0) * 60.0; "n" }
+        ((d >= 70.0) && (d <= 75.0)) || ((d >= -50.0) && (d <= -45.0)) -> { longitude = (d - 70.0) * 60.0; "o" }
+        ((d >= 75.0) && (d <= 80.0)) || ((d >= -45.0) && (d <= -40.0)) -> { longitude = (d - 75.0) * 60.0; "p" }
+        ((d >= 80.0) && (d <= 85.0)) || ((d >= -40.0) && (d <= -35.0)) -> { longitude = (d - 80.0) * 60.0; "q" }
+        ((d >= 85.0) && (d <= 90.0)) || ((d >= -35.0) && (d <= -30.0)) -> { longitude = (d - 85.0) * 60.0; "r" }
+        ((d >= 90.0) && (d <= 95.0)) || ((d >= -30.0) && (d <= -25.0)) -> { longitude = (d - 90.0) * 60.0; "s" }
+        ((d >= 95.0) && (d <= 100.0)) || ((d >= -25.0) && (d <= -20.0)) -> { longitude = (d - 95.0) * 60.0; "t" }
+        ((d >= 100.0) && (d <= 105.0)) || ((d >= -20.0) && (d <= -15.0)) -> { longitude = (d - 100.0) * 60.0; "u" }
+        ((d >= 105.0) && (d <= 110.0)) || ((d >= -15.0) && (d <= -10.0)) -> { longitude = (d - 105.0) * 60.0; "v" }
+        ((d >= 110.0) && (d <= 115.0)) || ((d >= -10.0) && (d <= -5.0)) -> { longitude = (d - 110.0) * 60.0; "w" }
+        ((d >= 115.0) && (d <= 120.0)) || ((d >= -5.0) && (d <= 0.0)) -> { longitude = (d - 115.0) * 60.0; "x" }
+        else -> { longitude = 0.0; " " }
+    }
+    val str4 = when {
+        ((longitude >= 0.0) && (longitude <= 30.0)) || ((longitude >= -300.0) && (longitude <= -270.0)) -> "0"
+        ((longitude >= 30.0) && (longitude <= 60.0)) || ((longitude >= -270.0) && (longitude <= -240.0)) -> "1"
+        ((longitude >= 60.0) && (longitude <= 90.0)) || ((longitude >= -240.0) && (longitude <= -210.0)) -> "2"
+        ((longitude >= 90.0) && (longitude <= 120.0)) || ((longitude >= -210.0) && (longitude <= -180.0)) -> "3"
+        ((longitude >= 120.0) && (longitude <= 150.0)) || ((longitude >= -180.0) && (longitude <= -150.0)) -> "4"
+        ((longitude >= 150.0) && (longitude <= 180.0)) || ((longitude >= -150.0) && (longitude <= -120.0)) -> "5"
+        ((longitude >= 180.0) && (longitude <= 210.0)) || ((longitude >= -120.0) && (longitude <= -90.0)) -> "6"
+        ((longitude >= 210.0) && (longitude <= 240.0)) || ((longitude >= -90.0) && (longitude <= -60.0)) -> "7"
+        ((longitude >= 240.0) && (longitude <= 270.0)) || ((longitude >= -60.0) && (longitude <= -30.0)) -> "8"
+        ((longitude >= 270.0) && (longitude <= 300.0)) || ((longitude >= -30.0) && (longitude <= 0.0)) -> "9"
+        else -> " "
+    }
+    return listOf(str, str2, str3, str4)
+}
+
+// 照搬 612-914 行: 纬度 -> (10°区字母, 1°数字, 1'字母, 15"数字)
+private fun encodeLat(inputLat: Double): List<String> {
+    var latitude = inputLat
+    var d2 = 0.0
+    var d3 = 0.0
+    val str5 = when {
+        (latitude >= -90.0) && (latitude <= -80.0) -> { d2 = latitude + 90.0; "A" }
+        (latitude >= -80.0) && (latitude <= -70.0) -> { d2 = latitude + 80.0; "B" }
+        (latitude >= -70.0) && (latitude <= -60.0) -> { d2 = latitude + 70.0; "C" }
+        (latitude >= -60.0) && (latitude <= -50.0) -> { d2 = latitude + 60.0; "D" }
+        (latitude >= -50.0) && (latitude <= -40.0) -> { d2 = latitude + 50.0; "E" }
+        (latitude >= -40.0) && (latitude <= -30.0) -> { d2 = latitude + 40.0; "F" }
+        (latitude >= -30.0) && (latitude <= -20.0) -> { d2 = latitude + 30.0; "G" }
+        (latitude >= -20.0) && (latitude <= -10.0) -> { d2 = latitude + 20.0; "H" }
+        (latitude >= -10.0) && (latitude <= 0.0) -> { d2 = latitude + 10.0; "I" }
+        (latitude >= 0.0) && (latitude <= 10.0) -> { d2 = latitude; "J" }
+        (latitude >= 10.0) && (latitude <= 20.0) -> { d2 = latitude - 10.0; "K" }
+        (latitude >= 20.0) && (latitude <= 30.0) -> { d2 = latitude - 20.0; "L" }
+        (latitude >= 30.0) && (latitude <= 40.0) -> { d2 = latitude - 30.0; "M" }
+        (latitude >= 40.0) && (latitude <= 50.0) -> { d2 = latitude - 40.0; "N" }
+        (latitude >= 50.0) && (latitude <= 60.0) -> { d2 = latitude - 50.0; "O" }
+        (latitude >= 60.0) && (latitude <= 70.0) -> { d2 = latitude - 60.0; "P" }
+        (latitude >= 70.0) && (latitude <= 80.0) -> { d2 = latitude - 70.0; "Q" }
+        (latitude >= 80.0) && (latitude <= 90.0) -> { d2 = latitude - 80.0; "R" }
+        else -> { d2 = 0.0; " " }
+    }
+    var str6 = " "
+    when {
+        ((d2 >= 0.0) && (d2 <= 1.0)) || ((d2 >= -10.0) && (d2 <= -9.0)) -> { d3 = d2 * 60.0; str6 = "0" }
+        ((d2 >= 1.0) && (d2 <= 2.0)) || ((d2 >= -9.0) && (d2 <= -8.0)) -> { d3 = (d2 - 1.0) * 60.0; str6 = "1" }
+        ((d2 >= 2.0) && (d2 <= 3.0)) || ((d2 >= -8.0) && (d2 <= -7.0)) -> { d3 = (d2 - 2.0) * 60.0; str6 = "2" }
+        ((d2 >= 3.0) && (d2 <= 4.0)) || ((d2 >= -7.0) && (d2 <= -6.0)) -> { d3 = (d2 - 3.0) * 60.0; str6 = "3" }
+        ((d2 >= 4.0) && (d2 <= 5.0)) || ((d2 >= -6.0) && (d2 <= -5.0)) -> { d3 = (d2 - 4.0) * 60.0; str6 = "4" }
+        ((d2 >= 5.0) && (d2 <= 6.0)) || ((d2 >= -5.0) && (d2 <= -4.0)) -> { d3 = (d2 - 5.0) * 60.0; str6 = "5" }
+        ((d2 >= 6.0) && (d2 <= 7.0)) || ((d2 >= -4.0) && (d2 <= -3.0)) -> { d3 = (d2 - 6.0) * 60.0; str6 = "6" }
+        ((d2 >= 7.0) && (d2 <= 8.0)) || ((d2 >= -3.0) && (d2 <= -2.0)) -> { d3 = (d2 - 7.0) * 60.0; str6 = "7" }
+        ((d2 >= 8.0) && (d2 <= 9.0)) || ((d2 >= -2.0) && (d2 <= -1.0)) -> { d3 = (d2 - 8.0) * 60.0; str6 = "8" }
+        ((d2 >= 9.0) && (d2 <= 10.0)) || ((d2 >= -1.0) && (d2 <= 0.0)) -> { d3 = (d2 - 9.0) * 60.0; str6 = "9" }
+    }
+    val str38 = when {
+        ((d3 >= 0.0) && (d3 <= 2.5)) || ((d3 >= -60.0) && (d3 <= -57.5)) -> { d2 = d3 * 60.0; "a" }
+        ((d3 >= 2.5) && (d3 <= 5.0)) || ((d3 >= -57.5) && (d3 <= -55.0)) -> { d2 = (d3 - 2.5) * 60.0; "b" }
+        ((d3 >= 5.0) && (d3 <= 7.5)) || ((d3 >= -55.0) && (d3 <= -52.5)) -> { d2 = (d3 - 5.0) * 60.0; "c" }
+        ((d3 >= 7.5) && (d3 <= 10.0)) || ((d3 >= -52.5) && (d3 <= -50.0)) -> { d2 = (d3 - 7.5) * 60.0; "d" }
+        ((d3 >= 10.0) && (d3 <= 12.5)) || ((d3 >= -50.0) && (d3 <= -47.5)) -> { d2 = (d3 - 10.0) * 60.0; "e" }
+        ((d3 >= 12.5) && (d3 <= 15.0)) || ((d3 >= -47.5) && (d3 <= -45.0)) -> { d2 = (d3 - 12.5) * 60.0; "f" }
+        ((d3 >= 15.0) && (d3 <= 17.5)) || ((d3 >= -45.0) && (d3 <= -42.5)) -> { d2 = (d3 - 15.0) * 60.0; "g" }
+        ((d3 >= 17.5) && (d3 <= 20.0)) || ((d3 >= -42.5) && (d3 <= -40.0)) -> { d2 = (d3 - 17.5) * 60.0; "h" }
+        ((d3 >= 20.0) && (d3 <= 22.5)) || ((d3 >= -40.0) && (d3 <= -37.5)) -> { d2 = (d3 - 20.0) * 60.0; "i" }
+        ((d3 >= 22.5) && (d3 <= 25.0)) || ((d3 >= -37.5) && (d3 <= -35.0)) -> { d2 = (d3 - 22.5) * 60.0; "j" }
+        ((d3 >= 25.0) && (d3 <= 27.5)) || ((d3 >= -35.0) && (d3 <= -32.5)) -> { d2 = (d3 - 25.0) * 60.0; "k" }
+        ((d3 >= 27.5) && (d3 <= 30.0)) || ((d3 >= -32.5) && (d3 <= -30.0)) -> { d2 = (d3 - 27.5) * 60.0; "l" }
+        ((d3 >= 30.0) && (d3 <= 32.5)) || ((d3 >= -30.0) && (d3 <= -27.5)) -> { d2 = (d3 - 30.0) * 60.0; "m" }
+        ((d3 >= 32.5) && (d3 <= 35.0)) || ((d3 >= -27.5) && (d3 <= -25.0)) -> { d2 = (d3 - 32.5) * 60.0; "n" }
+        ((d3 >= 35.0) && (d3 <= 37.5)) || ((d3 >= -25.0) && (d3 <= -22.5)) -> { d2 = (d3 - 35.0) * 60.0; "o" }
+        ((d3 >= 37.5) && (d3 <= 40.0)) || ((d3 >= -22.5) && (d3 <= -20.0)) -> { d2 = (d3 - 37.5) * 60.0; "p" }
+        ((d3 >= 40.0) && (d3 <= 42.5)) || ((d3 >= -20.0) && (d3 <= -17.5)) -> { d2 = (d3 - 40.0) * 60.0; "q" }
+        ((d3 >= 42.5) && (d3 <= 45.0)) || ((d3 >= -17.5) && (d3 <= -15.0)) -> { d2 = (d3 - 42.5) * 60.0; "r" }
+        ((d3 >= 45.0) && (d3 <= 47.5)) || ((d3 >= -15.0) && (d3 <= -12.5)) -> { d2 = (d3 - 45.0) * 60.0; "s" }
+        ((d3 >= 47.5) && (d3 <= 50.0)) || ((d3 >= -12.5) && (d3 <= -10.0)) -> { d2 = (d3 - 47.5) * 60.0; "t" }
+        ((d3 >= 50.0) && (d3 <= 52.5)) || ((d3 >= -10.0) && (d3 <= -7.5)) -> { d2 = (d3 - 50.0) * 60.0; "u" }
+        ((d3 >= 52.5) && (d3 <= 55.0)) || ((d3 >= -7.5) && (d3 <= -5.0)) -> { d2 = (d3 - 52.5) * 60.0; "v" }
+        ((d3 >= 55.0) && (d3 <= 57.5)) || ((d3 >= -5.0) && (d3 <= -2.5)) -> { d2 = (d3 - 55.0) * 60.0; "w" }
+        ((d3 >= 57.5) && (d3 <= 60.0)) || ((d3 >= -2.5) && (d3 <= 0.0)) -> { d2 = (d3 - 57.5) * 60.0; "x" }
+        else -> { d2 = 0.0; " " }
+    }
+    val str9 = when {
+        ((d2 >= 0.0) && (d2 <= 15.0)) || ((d2 >= -150.0) && (d2 <= -135.0)) -> "0"
+        ((d2 >= 15.0) && (d2 <= 30.0)) || ((d2 >= -135.0) && (d2 <= -120.0)) -> "1"
+        ((d2 >= 30.0) && (d2 <= 45.0)) || ((d2 >= -120.0) && (d2 <= -105.0)) -> "2"
+        ((d2 >= 45.0) && (d2 <= 60.0)) || ((d2 >= -105.0) && (d2 <= -90.0)) -> "3"
+        ((d2 >= 60.0) && (d2 <= 75.0)) || ((d2 >= -90.0) && (d2 <= -75.0)) -> "4"
+        ((d2 >= 75.0) && (d2 <= 90.0)) || ((d2 >= -75.0) && (d2 <= -60.0)) -> "5"
+        ((d2 >= 90.0) && (d2 <= 105.0)) || ((d2 >= -60.0) && (d2 <= -45.0)) -> "6"
+        ((d2 >= 105.0) && (d2 <= 120.0)) || ((d2 >= -45.0) && (d2 <= -30.0)) -> "7"
+        ((d2 >= 120.0) && (d2 <= 135.0)) || ((d2 >= -30.0) && (d2 <= -15.0)) -> "8"
+        ((d2 >= 135.0) && (d2 <= 150.0)) || ((d2 >= -15.0) && (d2 <= 0.0)) -> "9"
+        else -> " "
+    }
+    return listOf(str5, str6, str38, str9)
+}
+
+/**
+ * 照搬 917-1283 行: 九宫格 parseInt3 五分支(内部/西界/东界/北界/南界 + 四角)。
+ * 返回 9 格文本: [上左, 上中, 上右, 左中, 中央, 右中, 下左, 下中, 下右]。
+ */
+private fun buildGrids(str: String, str5: String, str2: String, str6: String, str3: String, str38: String): List<String> {
+    val parseInt = str2.toInt()
+    val parseInt2 = str6.toInt()
+    val str39 = str + str5
+    val str40 = str2 + str6
+    val parseInt3 = str40.toInt()
+    val str41 = str39 + str40
+    val g = MutableList(9) { "" }
+    fun fmt2(n: Int) = if (n <= 9) "0$n" else n.toString()
+    if ((parseInt > 0) && (parseInt < 9) && (parseInt2 > 0) && (parseInt2 < 9)) {
+        // 内部: 数字对 ±1
+        val i7 = parseInt3 + 1
+        val i8 = i7 - 10
+        val valueOf9 = fmt2(i8)
+        val str11 = i7.toString()
+        val valueOf18 = (i7 + 10).toString()
+        val i9 = parseInt3 - 10
+        val valueOf10 = fmt2(i9)
+        val valueOf19 = (parseInt3 + 10).toString()
+        val i10 = parseInt3 - 1
+        val i11 = i10 - 10
+        val valueOf11 = fmt2(i11)
+        val str14 = i10.toString()
+        val str15 = (i10 + 10).toString()
+        g[0] = str39 + valueOf9
+        g[1] = str39 + str11
+        g[2] = str39 + valueOf18
+        g[3] = str39 + valueOf10
+        g[4] = str41
+        g[5] = str39 + valueOf19
+        g[6] = str39 + valueOf11
+        g[7] = str39 + str14
+        g[8] = str39 + str15
+    } else if ((parseInt == 0) && (parseInt2 > 0) && (parseInt2 < 9)) {
+        // 西边界: 经度 0 -> 9, 经度字母 -1
+        val str43 = (str[0] - 1).toString() + str5
+        val str44 = "9" + (parseInt2 + 1)
+        val i12 = parseInt3 + 1
+        val valueOf7 = fmt2(i12)
+        val str12 = (i12 + 10).toString()
+        val sb4 = "9" + parseInt2
+        val valueOf20 = (parseInt3 + 10).toString()
+        val str46 = "9" + (parseInt2 - 1)
+        val i13 = parseInt3 - 1
+        val valueOf8 = fmt2(i13)
+        val str15 = (i13 + 10).toString()
+        g[0] = str43 + str44
+        g[1] = str39 + valueOf7
+        g[2] = str39 + str12
+        g[3] = str43 + sb4
+        g[4] = str41
+        g[5] = str39 + valueOf20
+        g[6] = str43 + str46
+        g[7] = str39 + valueOf8
+        g[8] = str39 + str15
+    } else if ((parseInt == 9) && (parseInt2 > 0) && (parseInt2 < 9)) {
+        // 东边界: 经度 9 -> 0, 经度字母 +1
+        val str47 = (str[0] + 1).toString() + str5
+        val i14 = parseInt3 + 1
+        val valueOf21 = (i14 - 10).toString()
+        val valueOf22 = i14.toString()
+        val str48 = "0" + (parseInt2 + 1)
+        val valueOf23 = (parseInt3 - 10).toString()
+        val str49 = "0" + parseInt2
+        val i15 = parseInt3 - 1
+        val valueOf24 = (i15 - 10).toString()
+        val valueOf25 = i15.toString()
+        val str15 = "0" + (parseInt2 - 1)
+        g[0] = str39 + valueOf21
+        g[1] = str39 + valueOf22
+        g[2] = str47 + str48
+        g[3] = str39 + valueOf23
+        g[4] = str41
+        g[5] = str47 + str49
+        g[6] = str39 + valueOf24
+        g[7] = str39 + valueOf25
+        g[8] = str47 + str15
+    } else if ((parseInt < 9) && (parseInt > 0) && (parseInt2 == 9)) {
+        // 北边界: 纬度 9 -> 0, 纬度字母 +1
+        val str50 = str + (str5[0] + 1).toString()
+        val i16 = parseInt3 - 9
+        val i17 = i16 - 10
+        val valueOf4 = fmt2(i17)
+        val valueOf26 = i16.toString()
+        val valueOf27 = (i16 + 10).toString()
+        val i18 = parseInt3 - 10
+        val valueOf5 = fmt2(i18)
+        val valueOf28 = (parseInt3 + 10).toString()
+        val i19 = parseInt3 - 1
+        val i20 = i19 - 10
+        val valueOf6 = fmt2(i20)
+        val str14 = i19.toString()
+        val str15 = (i19 + 10).toString()
+        g[0] = str39 + valueOf4
+        g[1] = str50 + valueOf26
+        g[2] = str39 + valueOf27
+        g[3] = str39 + valueOf5
+        g[4] = str41
+        g[5] = str39 + valueOf28
+        g[6] = str39 + valueOf6
+        g[7] = str39 + str14
+        g[8] = str39 + str15
+    } else if ((parseInt < 9) && (parseInt > 0) && (parseInt2 == 0)) {
+        // 南边界: 纬度 0 -> 9, 纬度字母 -1
+        val str52 = str + (str5[0] - 1).toString()
+        val i21 = parseInt3 + 1
+        val i22 = i21 - 10
+        val valueOf = fmt2(i22)
+        val valueOf29 = i21.toString()
+        val valueOf30 = (i21 + 10).toString()
+        val i23 = parseInt3 - 10
+        val valueOf2 = fmt2(i23)
+        val valueOf31 = (parseInt3 + 10).toString()
+        val i24 = parseInt3 - 1
+        val valueOf3 = fmt2(i24)
+        val str14 = (i24 + 10).toString()
+        val str15 = (i24 + 20).toString()
+        g[0] = str39 + valueOf
+        g[1] = str39 + valueOf29
+        g[2] = str39 + valueOf30
+        g[3] = str39 + valueOf2
+        g[4] = str41
+        g[5] = str39 + valueOf31
+        g[6] = str52 + valueOf3
+        g[7] = str52 + str14
+        g[8] = str52 + str15
+    } else if (parseInt3 == 0) {
+        // 四角 00: 经纬度数字均 -1 进位
+        val v32 = (str[0] - 1).toString()
+        val v33 = (str5[0] - 1).toString()
+        g[0] = v32 + str5 + "91"
+        g[1] = str39 + "01"
+        g[2] = str39 + "11"
+        g[3] = v32 + str5 + "90"
+        g[4] = str41
+        g[5] = v32 + str5 + "10"
+        g[6] = v32 + v33 + "99"
+        g[7] = str + v33 + "09"
+        g[8] = str + v33 + "19"
+    } else if (parseInt3 == 9) {
+        // 四角 09: 经度 -1, 纬度 +1
+        val v34 = (str[0] - 1).toString()
+        val v35 = (str5[0] + 1).toString()
+        g[0] = v34 + v35 + "90"
+        g[1] = str + v35 + "00"
+        g[2] = str + v35 + "10"
+        g[3] = v34 + str5 + "99"
+        g[4] = str41
+        g[5] = v34 + str5 + "19"
+        g[6] = v34 + str5 + "98"
+        g[7] = v34 + str5 + "08"
+        g[8] = v34 + str5 + "18"
+    } else if (parseInt3 == 99) {
+        // 四角 99: 经纬度数字均 +1 进位
+        val v36 = (str[0] + 1).toString()
+        val v37 = (str5[0] + 1).toString()
+        g[0] = str + v37 + "80"
+        g[1] = str + v37 + "90"
+        g[2] = v36 + v37 + "00"
+        g[3] = str39 + "89"
+        g[4] = str41
+        g[5] = v36 + str5 + "09"
+        g[6] = str39 + "88"
+        g[7] = str39 + "98"
+        g[8] = v36 + str5 + "08"
+    } else if (parseInt3 == 90) {
+        // 四角 90: 经度 +1, 纬度 -1
+        val v38 = (str[0] + 1).toString()
+        val v39 = (str5[0] - 1).toString()
+        g[0] = str39 + "81"
+        g[1] = str39 + "91"
+        g[2] = v38 + str5 + "01"
+        g[3] = str39 + "80"
+        g[4] = str41
+        g[5] = v38 + str5 + "00"
+        g[6] = str + v39 + "89"
+        g[7] = str + v39 + "99"
+        g[8] = v38 + v39 + "09"
+    }
+    return g
+}
@@ -0,0 +1,124 @@
+/*
+ * Look4Sat. Amateur radio satellite tracker and pass predictor.
+ * Copyright (C) 2019-2026 Arty Bishop and contributors.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.rtbishop.look4sat.feature.roaming
+
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class RoamingStateTest {
+
+    // 用户实测坐标 (QTH定位器 2.0 成品截图): 22.314066 / 108.706575
+    private fun stateOf(lat: Double, lon: Double) =
+        roamingStateFromLocation(lat, lon, System.currentTimeMillis(), "21:")
+
+    @Test
+    fun `user coordinates produce OL42ih45`() {
+        val state = stateOf(22.314066, 108.706575)
+        assertEquals("OL42ih45", state.loc)
+    }
+
+    @Test
+    fun `red marker from ih pair matches reference lookup`() {
+        val state = stateOf(22.314066, 108.706575)
+        // 成品查表: 经度第3对 'i' -> leftMargin 65dp, 纬度第3对 'h' -> topMargin 137dp
+        assertEquals(65, state.markerLeft)
+        assertEquals(137, state.markerTop)
+    }
+
+    @Test
+    fun `grid nine from OL42 matches reference`() {
+        val state = stateOf(22.314066, 108.706575)
+        val expected = listOf(
+            "OL33", "OL43", "OL53",
+            "OL32", "OL42", "OL52",
+            "OL31", "OL41", "OL51"
+        )
+        assertEquals(expected, state.grids)
+    }
+
+    @Test
+    fun `latitude dms formatting matches reference`() {
+        val state = stateOf(22.314066, 108.706575)
+        assertEquals("纬度  22° 18' 50\" N", state.latLabel)
+        assertEquals("22.314066° ", state.latValue)
+        assertEquals("经度 108° 42' 23\" E", state.lonLabel)
+        assertEquals("108.706575° ", state.lonValue)
+    }
+
+    @Test
+    fun `time is hour prefix plus fix minutes`() {
+        // fixTime = 2026-08-03 21:12:13 UTC+8 -> minutes 12
+        val fix = 1785820333000L // 2026-08-03 21:12:13 +0800
+        val state = roamingStateFromLocation(22.314066, 108.706575, fix, "21:")
+        assertEquals("21:12", state.time)
+    }
+
+    @Test
+    fun `west edge borrows lon letter`() {
+        // 经度 0.5 纬度 22.314066: 数字对 02, 西边界 parseInt==0
+        val state = stateOf(22.314066, 0.5)
+        assertEquals(8, state.loc.length)
+        // 左列经度 0->9, 经度字母 J-1=I: IL92
+        assertEquals("IL92", state.grids[3])
+    }
+
+    @Test
+    fun `north edge carries lat letter`() {
+        // 纬度 29.5 经度 108.706575: 数字对 49? -> 纬度数字 9 -> 北边界
+        val state = stateOf(29.5, 108.706575)
+        assertEquals(8, state.loc.length)
+        // 上排纬度 +1 -> 0, 纬度字母 +1 (M)
+        assertEquals("OM40", state.grids[1])
+    }
+
+    @Test
+    fun `east edge carries lon letter`() {
+        // 经度 119.5 纬度 22.314066: 经度数字 9 -> 东边界
+        val state = stateOf(22.314066, 119.5)
+        assertEquals(8, state.loc.length)
+        // 右上 经度 9->0, 经度字母 O+1=P, 纬度 2+1=3: PL03
+        assertEquals("PL03", state.grids[2])
+    }
+
+    @Test
+    fun `south edge borrows lat letter`() {
+        // 纬度 0.5 经度 108.706575: 纬度数字 0 -> 南边界
+        val state = stateOf(0.5, 108.706575)
+        assertEquals(8, state.loc.length)
+        // 下中 纬度 0->9, 纬度字母 J-1=I: OI49
+        assertEquals("OI49", state.grids[7])
+    }
+
+    @Test
+    fun `boundary values wrap like reference`() {
+        // (90, 180) -> RR99xx99 (成品区间查表行为)
+        val state = stateOf(90.0, 180.0)
+        assertEquals("RR99xx99", state.loc)
+    }
+
+    @Test
+    fun `gps state after fix matches showLocation`() {
+        val state = stateOf(22.314066, 108.706575)
+        assertEquals(true, state.gpsOn)
+        assertEquals(false, state.gpsOff)
+        assertEquals(false, state.showSettings)
+        assertEquals(false, state.showProgress)
+        assertEquals(false, state.showNotice)
+        assertEquals(true, state.showDate)
+    }
+}
@@ -29,6 +29,7 @@ import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.heightIn
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.lazy.grid.GridCells
@@ -339,6 +340,8 @@ private fun LocationCard(
            Row(horizontalArrangement = Arrangement.SpaceBetween, modifier = Modifier.fillMaxWidth()) {
                Text(text = "Lat: ${settings.stationPos.latitude}°")
                Text(text = "Lon: ${settings.stationPos.longitude}°")
+            }
+            Row(horizontalArrangement = Arrangement.SpaceBetween, modifier = Modifier.fillMaxWidth()) {
                Text(text = "Qth: ${settings.stationPos.qthLocator}")
            }
            Spacer(modifier = Modifier.height(1.dp))
@@ -484,11 +487,12 @@ private fun OtherCardPreview() = MainTheme {
@Composable
 private fun OtherCard(settings: OtherSettings, onAction: (SettingsAction) -> Unit) {
    ElevatedCard(
-        modifier = Modifier
-            .fillMaxWidth()
-            .height(268.dp)
+        modifier = Modifier.fillMaxWidth()
    ) {
-        Column(modifier = Modifier.padding(horizontal = 8.dp, vertical = 4.dp)) {
+        Column(
+            modifier = Modifier.padding(horizontal = 8.dp, vertical = 4.dp),
+            verticalArrangement = Arrangement.spacedBy(4.dp)
+        ) {
            Text(
                text = stringResource(id = R.string.prefs_other_title),
                color = MaterialTheme.colorScheme.primary
@@ -556,15 +560,11 @@ private fun CardCreditsPreview() = MainTheme { CardCredits() }
@Composable
 private fun CardCredits(modifier: Modifier = Modifier) {
    ElevatedCard(
-        modifier = modifier
-            .fillMaxWidth()
-            .height(268.dp)
+        modifier = modifier.fillMaxWidth()
    ) {
        Column(
-            verticalArrangement = Arrangement.SpaceBetween,
-            modifier = Modifier
-                .padding(horizontal = 8.dp, vertical = 4.dp)
-                .fillMaxHeight()
+            verticalArrangement = Arrangement.spacedBy(8.dp),
+            modifier = Modifier.padding(horizontal = 8.dp, vertical = 4.dp)
        ) {
            Text(
                text = stringResource(id = R.string.prefs_outro_title),
@@ -573,6 +573,8 @@ private fun CardCredits(modifier: Modifier = Modifier) {
            Text(
                text = stringResource(id = R.string.prefs_outro_thanks)
            )
+            // 感谢列表与保修声明之间保留约两行间距 (用户要求)
+            Spacer(modifier = Modifier.height(24.dp))
            Text(
                text = stringResource(id = R.string.prefs_outro_license),
                color = MaterialTheme.colorScheme.primary
@@ -588,7 +590,7 @@ private fun TopCard(onClick: () -> Unit, modifier: Modifier = Modifier, version:
            horizontalArrangement = Arrangement.spacedBy(12.dp),
            verticalAlignment = Alignment.CenterVertically,
            modifier = Modifier
-                .height(48.dp)
+                .heightIn(min = 48.dp)
                .clickable { onClick() }) {
            Spacer(Modifier)
            Icon(
@@ -603,7 +605,6 @@ private fun TopCard(onClick: () -> Unit, modifier: Modifier = Modifier, version:
                modifier = Modifier
                    .weight(1f)
                    .padding(end = 6.dp)
-                    .infiniteMarquee()
            )
        }
    }
@@ -1,8 +1,8 @@
 [versions]
 #noinspection UnusedVersionCatalogEntry
-appVersionCode = "443"
+appVersionCode = "447"
 #noinspection UnusedVersionCatalogEntry
-appVersionName = "4.4.3"
+appVersionName = "4.4.7"
 #noinspection UnusedVersionCatalogEntry
 compileSdk = "37"
 #noinspection UnusedVersionCatalogEntry
@@ -25,6 +25,7 @@ include(
    ":feature:mutual",
    ":feature:passes",
    ":feature:radar",
+    ":feature:roaming",
    ":feature:satellites",
    ":feature:settings"
 )
Author	SHA1	Message	Date
mckero	c19209655b	fix(roaming,settings): theme colors for night mode; unclamp cards; brand title and APK name Three detail fixes plus branding, per user review: 1. Night mode visibility (roaming page): hardcoded reference blues (#01DDFF/#0BACF1) collapse to black under the red ColorMatrix filter (R channel only), making the page unreadable. Replace ALL colors with MaterialTheme.colorScheme (background/surface/ surfaceVariant/onSurface/onSurfaceVariant/primary/error). GPS status dots become themed circles (primary/error) so they survive the red filter; red marker keeps the original pnt drawable. 2. Settings cards unclamped: - OtherCard: fixed height(268.dp) squeezed the last toggle row (spacing 42/42/42/15px on device); drop the fixed height. - CardCredits: same 268dp + SpaceBetween overflowed, gluing the last thanks entry to the warranty line; drop fixed height, use spacedBy(8.dp) and insert 24dp before the warranty text. 3. Branding: - Settings top title: "Look4Sat v%s" -> "Look4Sat Pro v%s" (en/tr); title Text no longer marquees and wraps instead (heightIn(min=48)). - APK asset name: look4sat-<ver>.apk -> Look4Sat-Pro-<ver>.apk. - What's-new dialog (pass_whatsnew_message) rewritten in all three locales (en/zh/tr) with this release's changes; zh gets its own localized title "Look4Sat Pro 更新内容". Verified: roaming/settings/passes/app compile, 11 unit tests pass.	2026-08-03 15:46:21 +00:00
mckero	d456bdf4b5	fix(roaming): stretch side cells to 80dp like the reference RelativeLayout The user spotted two white "beams" (20dp gaps) between the center cell and the side cells. Root cause: the reference app's RelativeLayout ignores the fixed 60dp width when a child has BOTH a left rule (alignParentLeft) and a right rule (toLeftOf=center cell) - the width is stretched to right-rule minus left-rule, i.e. 80dp on a 360dp screen. The three cells therefore sit flush with only 2dp margins between them, no gaps. Port that behavior: side cells 60dp -> 80dp (6 places), center cell stays 200dp centered. Verified against the reference screenshot pixel measurements (side cells ~76.5dp incl. margins, center ~198dp). Verified: feature + app compile, 11 unit tests pass. Marker lookup, grid math and GPS logic untouched.	2026-08-03 15:22:08 +00:00
mckero	f06b17a194	fix(roaming): align grid columns like reference and lift footer Two remaining proportion issues on the user's device: 1. Right-side gap: the three grid rows used a continuous Row (60+200+60dp), leaving ~84px of blank space on the right of the screen. The reference app uses a RelativeLayout where the right column is pinned to the screen edge and the 20dp gaps sit on both sides of the centered middle column. Convert each row to a Box: left cell align(CenterStart), middle cell align(Center), right cell align(CenterEnd) - pixel-identical to the reference. 2. Footer legibility: the credit line ("制作：US1PM 汉化：BA7LCE") had a fixed 15dp height with no bottom margin, so it sat directly against the navigation bar and part of the text was hard to read. Drop the fixed height and add 10dp bottom padding so the text renders fully with breathing room above the nav bar. Verified: feature + app compile, 11 unit tests pass. Marker lookup, grid math and GPS logic untouched.	2026-08-03 15:09:45 +00:00
mckero	675194075e	fix(roaming): inset page content from system bars The ported page rendered edge-to-edge: the GPS bar started right at the top of the screen and the footer sat against the navigation bar, so system UI overlapped the content (user: "顶头"). The reference app is not edge-to-edge and keeps its content inside the safe area. Add windowInsetsPadding(WindowInsets.systemBars) on the page root column, shrinking the top and bottom by the status/navigation bar height exactly as the user requested ("上方和下方往里面缩一点点"). Grid columns (60/200/60dp), rows, marker lookup and all logic are untouched - verified pixel-identical column ratios vs the reference screenshot (147:395:147 vs 146:395:148). Verified: feature + app compile, 11 unit tests pass.	2026-08-03 14:55:46 +00:00
mckero	0ecccc4746	feat(roaming): port QTH定位器 2.0 page and logic verbatim The roaming page was repeatedly rebuilt by hand and the red marker still rendered at the wrong spot on the user's device. Per the user's explicit instruction the whole page is now a faithful, line-by-line port of the reference app (QTH定位器 2.0, com.us1pm.gridsquarelocator) with zero UI or logic changes. UI (res/layout/main.xml, byte-verified via aapt2 dump): - 25dp holo-blue GPS bar: "GPS" 14sp, green/red status dot 15dp (original mipmaps copied as drawables), centered date, right time, translucent-yellow "设置启用GPS" button that opens location settings - Latitude/longitude rows: 16sp black labels, right-aligned decimal values, DMS label format "纬度 22° 18' 50" N" exactly as reference - 43sp bold black locator, centered, with progress spinner + notice - 3x3 continuous grid: 60/200/60dp columns, middle row fixed 205dp, edge cells #0BACF1, center cell 200x200dp holo-blue (#01DDFF as shown on the user's device), center label 100x80dp 30sp bold white (textColorHighlight) centered, bottom "制作：US1PM 汉化：BA7LCE" - Red marker: original pnt.png (red square with white outline), 10x10dp, absolutely positioned by the reference lookup tables (lon 3rd pair a..x -> leftMargin -2..190dp, lat 3rd pair a..x -> topMargin 190..-2dp, screen-Y inverted) Logic (MainActivity.java showLocation/checkEnabled/onResume): - 8-char locator via the reference range-lookup tables - 3x3 neighbor grid via parseInt3 five-branch logic incl. all four corner-carry tables (00/09/99/90) - Live GPS + network updates 10s/10m while the page is shown, provider filtered to gps/network, checkEnabled three-state (green dot / red dot + settings button) exactly like the reference - Time = cached hour prefix + fix minutes; date "dd MMM yyyy" Dropped only the Play-store ad banner (conflicts with GPL project). Verified: 11 unit tests pass (locator, marker lookup, grid, DMS, time, all edge branches); feature + app modules compile. RoamingState.kt removed - state and math now live in RoamingScreen.kt.	2026-08-03 14:29:44 +00:00
mckero	88d1498eac	fix(roaming): red marker tracks fix in BOTH axes via 3rd-pair lookup The marker's vertical position was hardcoded (10dp below the label) — markerY never participated, so the dot could only move horizontally and could not reflect where the GPS fix sits inside the 4-char square. Now the marker is positioned in both axes from the cell's top-left corner: - x = markerX * cellWidth, y = markerY * cellHeight (screen Y) - markerX/markerY come from the 3rd character pair via the reference lookup tables (lon a=-2..x=190 as leftMargin; lat a=190..x=-2 as topMargin, i.e. latitude inverted on screen) - Verified numerically against the decompiled tables: a=0/1.0, i=0.333/0.667, x=0.958/0.042 — matching within 3% (the reference table is slightly non-uniform) Label stays at upper-middle (28sp bold); marker is only drawn when a valid locator exists.	2026-08-03 12:55:37 +00:00
mckero	31ae04329d	fix(roaming): clock ticker moves the header time; GPS mirrors station pos Two bugs from the last release: 1. The header clock was frozen: Date() was only evaluated during recomposition, and with no state changes the time never moved. Added a 1s LaunchedEffect ticker that updates a now-state, so the date/time text re-renders and actually advances — matching the reference app, which refreshes the clock on every location callback. 2. GPS indicator: replaced the 10-minute freshness check with a direct 'has a real fix' check (timestamp > 0 and coords non-zero). The page mirrors the station position (站位) from the shared StateFlow, so the GPS dot is green whenever the station has a fix — GPS shows exactly what the station GPS says, nothing more.	2026-08-03 12:48:17 +00:00
mckero	eae6304124	feat(roaming): faithful continuous-table grid layout, not card-based Reworks the Roaming grid to structurally match the reference app instead of a card-style panel: - Removed the outer ElevatedCard, rounded cells, cell gaps and inner padding: the 3x3 grid is now one continuous table that fills the panel, cells connected edge-to-edge. - Cells separated by 2dp divider lines that run the full width/height of each row/column, crossing at right angles like a real coordinate grid (the reference app's continuous separator lines). - Cells are square-cornered (no rounded corners), background fills each cell fully. - Column widths 21.4% : 56.2% : 21.4%, row heights 31.5% : 35.9% : 31.7% retained. - Center cell: OL42 is larger (28sp bold) and placed at upper-middle; the red marker sits BELOW the text with a 10dp gap, horizontally offset by the 3rd-pair fraction — never overlapping the label, matching the reference 'text above, marker below' layout. - Surrounding labels bumped to 16sp Medium (larger/stronger than before). - Info header also switched from an ElevatedCard to a flat continuous block so the page reads as one continuous surface, like the reference. The grid proportions, locator algorithm, marker mapping and boundary logic were already faithful; this change makes the visual structure faithful too.	2026-08-03 12:32:45 +00:00
mckero	97c6d609ac	fix(roaming): drop auto GPS polling, show station position directly Reverts the auto-update machinery after review — the page now simply mirrors the station position (站位) from the shared settingsRepo.stationPosition StateFlow, exactly what the Settings page shows: - RoamingScreen: removed the LocationManager listeners, the 30s re-request loop, the provider filter and the location-disabled hint. No polling, no auto-updates; coordinates are whatever the station GPS says. - Settings: removed the '漫游位置实时更新' toggle (stateOfRoamingLive, key, action, strings en/zh/tr) that caused the 'Other' card to overflow — the sixth unlabeled switch clipped past the card's rounded bottom edge was that row overflowing a fixed-height card. Card height back to 268.dp, five rows fit again. Verified: core:domain tests, roaming/settings/app compile clean; zero references to RoamingLive remain.	2026-08-03 12:24:07 +00:00
mckero	44c442ddd3	feat(roaming): port live GPS tracking and location-disabled hint Completes the port of the QTH定位器 app's location logic (read from the decompiled MainActivity): 1. Live location updates: a LocationListener registers GPS+NETWORK providers (10s / 10m, matching the reference onResume) while the Roaming page is visible and removes itself on dispose. Every fix is pushed through settingsRepo.setStationPosition, so the shared stationPosition StateFlow updates the Settings page and the map in lockstep — the page now refreshes in real time instead of only showing stale cached coordinates. 2. Provider filtering: only gps/network fixes are accepted, mirroring the reference showLocation() guard that rejects passive fixes. 3. Location-disabled hint: when GPS is off or permission is missing, the header shows a tappable '定位未开启,点击前往系统设置' row that opens ACTION_LOCATION_SOURCE_SETTINGS — the port of the reference btnLocationSettings button. The GPS status dot now has three states: fresh fix (primary), provider on but stale (error), provider off (outline). 4. Periodic recovery: a 30s re-request loop (honoring the 漫游位置实时更新 toggle) re-arms the location request after the chip falls idle. Not ported (conflict, deliberate): the reference app's Play-store ad banner, 'New! Grid Square with map' promo and GP_IN preferences — commercial advertising does not belong in a GPL satellite tracker.	2026-08-03 11:59:31 +00:00
mckero	f9250ec1f1	fix(roaming): live coords from shared flow, marker by locator pair, versioned apk Addresses three review findings: 1. Coordinates now come straight from settingsRepo.stationPosition in the screen (collectAsStateWithLifecycle) — the exact same StateFlow the Settings page shows. Previously a separate ViewModel re-derived them, and it could lag behind the Settings page (user: '设置页更新了站位但漫游页死活不更新'). With the shared source the two pages can never disagree. RoamingViewModel removed; state derivation moved to RoamingState.fromPosition(). 2. Red marker placement ported faithfully from the QTH定位器 app: it is driven by the 3rd character pair of the 8-char locator (the 'ih' in OL42ih45), mapped to a 0..1 fraction (lon a=west..x=east, lat inverted a=south..x=north), then scaled to the actual center-cell size. The grid now uses the reference proportions (columns 21.4/56.2/21.4, rows 31.5/35.9/31.7) and fills the screen, so the marker lands accurately on any device. 3. Workflow now uploads a versioned APK (look4sat-<version>.apk instead of look4sat.apk). Also: Settings 'Other' card rows got vertical spacing (Arrangement.spacedBy) so the new roaming toggle is not glued to the night-mode row.	2026-08-03 11:49:46 +00:00
mckero	bff3e1af09	chore: bump version to 4.4.7 Next release: versionCode 446 -> 447, versionName 4.4.6 -> 4.4.7. Includes the reworked Roaming page (faithful QTH定位器 port, live-update toggle, night-mode-safe theme colors).	2026-08-03 11:27:25 +00:00
mckero	6dbe30b3f6	feat(roaming): faithful QTH定位器 port, live-update toggle, night-mode safe Rework the Roaming page after user review. It is now a faithful port of the QTH定位器 location panel, not a loose re-skin: UI (matching the reference layout): - GPS status dot (real: green when a fresh fix exists, outline when stale/missing) + date + time header - Lat/Lon rows with DMS and 5-decimal display, big 8-char locator centered below - 3x3 grid of neighboring 4-char squares with the reference proportions: center column ~2.6x wider (21.4% : 56.2% : 21.4%) and center row the tallest (31.5% : 35.9% : 31.7%); red position marker now placed at the fractional position of the fix inside the center cell (was fixed center) - No oversized GPS button: live updating is now a Settings toggle '漫游位置实时更新' (stateOfRoamingLive, default on) that drives periodic location refresh Style & night-mode safety: - All colors come from MaterialTheme.colorScheme (surfaceVariant/secondaryContainer/error) — no hardcoded cyan/blue from the original app. The red night filter (ColorMatrix keeping only the R channel) blanked the old hardcoded palette; theme colors survive it. - Chinese nav label '漫游' added to values-zh (was missing, showing English 'Roaming') Settings: - OtherSettings.stateOfRoamingLive persisted (default true), toggle row in Other card, height adjusted Verified: feature:roaming, feature:settings, app compile clean.	2026-08-03 11:18:35 +00:00
mckero	8a920acead	build: revert gradle heap cap, keep CI builds unconstrained The 768m heap cap broke GitHub Actions (KSP OutOfMemoryError: Metaspace) because CI runners read the same gradle.properties. Restore -Xmx6g for CI; the 2GB local server should pass a one-off -Dorg.gradle.jvmargs instead.	2026-08-03 10:49:59 +00:00
mckero	929f652b8e	chore: bump version to 4.4.6 Next release: versionCode 445 -> 446, versionName 4.4.5 -> 4.4.6. Adds the Roaming page (QTH定位器-style 3x3 Maidenhead grid) between Match and Settings, credits BG7NTA & the original author in the thanks title, and caps local Gradle heap for the 2GB build server.	2026-08-03 10:47:39 +00:00
mckero	610768501e	build: add roaming module gradle file, cap local JVM heap Include feature:roaming/build.gradle.kts (missed from the module commit) and keep the reduced Gradle heap (-Xmx768m) so local light builds don't freeze the 2GB server.	2026-08-03 10:46:32 +00:00
mckero	427e6e1862	i18n: credit BG7NTA and original author in thanks title The settings outro title now reads 'BG7NTA & the original author would like to thank' (en) / 'BG7NTA 与原作者感谢' (zh) / 'BG7NTA ve orijinal yazar teşekkür eder' (tr), alongside the BA7OPF/BG7NTA entries added to the credits list.	2026-08-03 10:46:20 +00:00
mckero	bfa5e5f474	feat(roaming): add Roaming page with 3x3 Maidenhead grid Ports the QTH定位器 (com.us1pm.gridsquarelocator) location panel into Look4Sat as a new 'Roaming' page, restyled with the app's own look. UI (top to bottom): - Info header: GPS status dot, big 8-char locator, Lat/Lon rows with DMS + 5-decimal display, and a GPS 定位 button - 3x3 grid panel: the current 4-char Maidenhead square (e.g. OL42) centered, surrounded by its 8 neighbors (OL33..OL51), with a red position marker in the center cell Logic: - QthConverter gains qthNeighbors(square) building the 3x3 grid with field/square carry at boundaries (AA00 wraps to RR99, IO91 crosses into J field), and qthToSquare(locator) extracting the 4-char square - Verified against the decompiled app algorithm and the reference screenshot (OL42 grid matches exactly); 9 unit tests cover normal, boundary and field-wrap cases Navigation: - New bottom-nav item 'Roaming' between Match and Settings, with a crosshair icon - New feature:roaming module (ViewModel + Compose screen) registered in the app Build config: - Lowered Gradle JVM heap from -Xmx6g to 768m: the 2GB build server froze on the old value; heavy release builds stay on GitHub Actions	2026-08-03 10:46:14 +00:00
mckero	213425379c	merge: merge atsunatsu/main (mutual radar overlay arrows) Merge upstream commit `2298d8ee` 'feat: add mutual radar overlay arrows'. Clean auto-merge: upstream changed RadarView.kt arrow drawing, our sweep optimization stayed intact. No conflicts. First v4.4.5 was built from c3444aed; this release rebuilds from the merged tree.	2026-08-03 10:04:09 +00:00
mckero	c3444aed24	chore: bump version to 4.4.5 Next release: versionCode 444 -> 445, versionName 4.4.4 -> 4.4.5, following the upstream scheme without suffix. Includes the station panel layout fix, 5-decimal coordinates, and credits additions already merged on main.	2026-08-03 09:43:10 +00:00
mckero	368bd199e5	fix: station panel layout wraps QTH to its own line With 5-decimal coordinates the Lat/Lon/Qth row overflowed, pushing the QTH value to a wrapped line. Split into two rows: Lat + Lon on the first line, Qth on the second. Also append BA7OPF (pass matching feature) and BG7NTA to the credits list in en/zh/tr string resources.	2026-08-03 09:33:40 +00:00
atsunatsu	2298d8eea4	feat: add mutual radar overlay arrows	2026-08-03 17:27:48 +08:00
mckero	7bb0bbbb46	build: load release signing config from local keystore.properties Conditionally applies the BG7NTA signingConfig when keystore.properties exists (gitignored). CI signs via apksigner with GitHub Secrets, so this only affects local builds.	2026-08-03 09:25:53 +00:00
mckero	deec5581ae	feat: rebrand to Look4Sat Pro, bump version to 4.4.4 App display name changed from Look4Sat to Look4Sat Pro (fork identity). Version follows upstream scheme without suffix: 4.4.3 -> 4.4.4, versionCode 443 -> 444.	2026-08-03 09:20:41 +00:00
mckero	1de5632428	feat: increase station coordinate precision to 5 decimals Station lat/lon was stored rounded to 4 decimals (~11 m). Bump to 5 decimals (~1.1 m), slightly better than GPS hardware accuracy without showing noise. - SettingsRepo.setStationPosition: round(4) -> round(5) - QthConverter.qthToPosition: round(4) -> round(6) so 10-char locators fully roundtrip - Update QthConverterTest expected values to 6-decimal precision	2026-08-03 09:14:13 +00:00