Tweaked ViewModel retention to mirror the Nav2 behavior

app/src/main/java/com/rtbishop/look4sat/MainScreen.kt

@@ -56,8 +56,10 @@ import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import androidx.lifecycle.viewmodel.navigation3.rememberViewModelStoreNavEntryDecorator
 import androidx.navigation3.runtime.entryProvider
 import androidx.navigation3.runtime.rememberNavBackStack
+import androidx.navigation3.runtime.rememberSaveableStateHolderNavEntryDecorator
 import androidx.navigation3.ui.NavDisplay
 import com.rtbishop.look4sat.core.domain.repository.IContainerProvider
 import com.rtbishop.look4sat.core.presentation.Screen
@@ -122,6 +124,10 @@ fun MainScreen() {
                 transitionSpec = { fadeTransition },
                 popTransitionSpec = { fadeTransition },
                 predictivePopTransitionSpec = { fadeTransition },
+                entryDecorators = listOf(
+                    rememberSaveableStateHolderNavEntryDecorator(),
+                    rememberViewModelStoreNavEntryDecorator()
+                ),
                 entryProvider = entryProvider {
                     entry<Screen.Satellites> {
                         SatellitesDestination(navigateUp = navigateBack)

feature/map/src/main/java/com/rtbishop/look4sat/feature/map/MapNightOverlay.kt

@@ -43,7 +43,7 @@ import kotlin.math.sin
  * filled vertical rectangles.  On a 1080-wide screen this means ~270 trig
  * evaluations per row, which is imperceptible.
  */
-class NightOverlay : Overlay() {
+class MapNightOverlay : Overlay() {
 
     /** Sub-solar latitude in degrees. */
     var sunLatDeg: Double = 0.0

feature/map/src/main/java/com/rtbishop/look4sat/feature/map/MapScreen.kt

@@ -63,6 +63,7 @@ import androidx.lifecycle.viewmodel.compose.viewModel
 import com.rtbishop.look4sat.core.domain.predict.GeoPos
 import com.rtbishop.look4sat.core.domain.predict.OrbitalObject
 import com.rtbishop.look4sat.core.domain.predict.OrbitalPos
+import com.rtbishop.look4sat.core.domain.repository.IContainerProvider
 import com.rtbishop.look4sat.core.presentation.IconCard
 import com.rtbishop.look4sat.core.presentation.NextPassRow
 import com.rtbishop.look4sat.core.presentation.R
@@ -120,9 +121,11 @@ private val moonIconPaint = Paint(Paint.ANTI_ALIAS_FLAG).apply {
 
 @Composable
 fun MapDestination() {
+    val context = LocalContext.current
+    val container = (context.applicationContext as IContainerProvider).getMainContainer()
     val viewModel = viewModel(
         modelClass = MapViewModel::class.java,
-        factory = MapViewModel.Factory
+        factory = MapViewModel.factory(container)
     )
     val uiState by viewModel.uiState.collectAsStateWithLifecycle()
     val mapView = rememberMapViewWithLifecycle()
@@ -407,11 +410,11 @@ private fun setFootprint(orbitalPos: OrbitalPos, mapView: MapView) {
 private fun setTerminator(sunLatDeg: Double, sunLonDeg: Double, mapView: MapView) {
     try {
         val overlay = mapView.overlays[OVERLAY_TERMINATOR]
-        if (overlay is NightOverlay) {
+        if (overlay is MapNightOverlay) {
             overlay.sunLatDeg = sunLatDeg
             overlay.sunLonDeg = sunLonDeg
         } else {
-            mapView.overlays[OVERLAY_TERMINATOR] = NightOverlay().apply {
+            mapView.overlays[OVERLAY_TERMINATOR] = MapNightOverlay().apply {
                 this.sunLatDeg = sunLatDeg
                 this.sunLonDeg = sunLonDeg
             }

feature/map/src/main/java/com/rtbishop/look4sat/feature/map/MapViewModel.kt

@@ -18,7 +18,6 @@
 package com.rtbishop.look4sat.feature.map
 
 import androidx.lifecycle.ViewModel
-import androidx.lifecycle.ViewModelProvider
 import androidx.lifecycle.viewModelScope
 import androidx.lifecycle.viewmodel.initializer
 import androidx.lifecycle.viewmodel.viewModelFactory
@@ -27,7 +26,7 @@ import com.rtbishop.look4sat.core.domain.predict.GeoPos
 import com.rtbishop.look4sat.core.domain.predict.OrbitalObject
 import com.rtbishop.look4sat.core.domain.predict.OrbitalPass
 import com.rtbishop.look4sat.core.domain.predict.OrbitalPos
-import com.rtbishop.look4sat.core.domain.repository.IContainerProvider
+import com.rtbishop.look4sat.core.domain.repository.IMainContainer
 import com.rtbishop.look4sat.core.domain.repository.ISatelliteRepo
 import com.rtbishop.look4sat.core.domain.repository.ISettingsRepo
 import com.rtbishop.look4sat.core.domain.utility.clipLat
@@ -50,8 +49,10 @@ import kotlinx.coroutines.isActive
 import kotlinx.coroutines.launch
 import java.util.Date
 
-class MapViewModel(private val satelliteRepo: ISatelliteRepo, private val settingsRepo: ISettingsRepo) :
-    ViewModel() {
+class MapViewModel(
+    private val satelliteRepo: ISatelliteRepo,
+    private val settingsRepo: ISettingsRepo
+) : ViewModel() {
 
     private val stationPos = settingsRepo.stationPosition.value
     private val defaultPass = getDefaultPass()
@@ -293,11 +294,12 @@ class MapViewModel(private val satelliteRepo: ISatelliteRepo, private val settin
         /** Number of parallel chunks for satellite position computation */
         private const val PARALLEL_CHUNKS = 4
 
-        val Factory: ViewModelProvider.Factory = viewModelFactory {
-            val applicationKey = ViewModelProvider.AndroidViewModelFactory.APPLICATION_KEY
+        fun factory(container: IMainContainer) = viewModelFactory {
             initializer {
-                val container = (this[applicationKey] as IContainerProvider).getMainContainer()
-                MapViewModel(container.satelliteRepo, container.settingsRepo)
+                MapViewModel(
+                    satelliteRepo = container.satelliteRepo,
+                    settingsRepo = container.settingsRepo
+                )
             }
         }
     }

feature/passes/src/main/java/com/rtbishop/look4sat/feature/passes/PassesScreen.kt

@@ -50,6 +50,7 @@ import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.font.FontWeight
@@ -63,6 +64,7 @@ import com.rtbishop.look4sat.core.domain.predict.DeepSpaceObject
 import com.rtbishop.look4sat.core.domain.predict.NearEarthObject
 import com.rtbishop.look4sat.core.domain.predict.OrbitalData
 import com.rtbishop.look4sat.core.domain.predict.OrbitalPass
+import com.rtbishop.look4sat.core.domain.repository.IContainerProvider
 import com.rtbishop.look4sat.core.presentation.EmptyListCard
 import com.rtbishop.look4sat.core.presentation.IconCard
 import com.rtbishop.look4sat.core.presentation.InfoDialog
@@ -81,9 +83,11 @@ import java.util.TimeZone
 
 @Composable
 fun PassesDestination(navigateToRadar: (Int, Long) -> Unit) {
+    val context = LocalContext.current
+    val container = (context.applicationContext as IContainerProvider).getMainContainer()
     val viewModel = viewModel(
         modelClass = PassesViewModel::class.java,
-        factory = PassesViewModel.Factory
+        factory = PassesViewModel.factory(container)
     )
     val uiState = viewModel.uiState.collectAsStateWithLifecycle().value
     PassesScreen(uiState, viewModel::onAction, navigateToRadar)

feature/passes/src/main/java/com/rtbishop/look4sat/feature/passes/PassesViewModel.kt

@@ -18,14 +18,13 @@
 package com.rtbishop.look4sat.feature.passes
 
 import androidx.lifecycle.ViewModel
-import androidx.lifecycle.ViewModelProvider
 import androidx.lifecycle.viewModelScope
 import androidx.lifecycle.viewmodel.initializer
 import androidx.lifecycle.viewmodel.viewModelFactory
 import com.rtbishop.look4sat.core.domain.model.PassesSettings
 import com.rtbishop.look4sat.core.domain.predict.CelestialComputer
 import com.rtbishop.look4sat.core.domain.predict.OrbitalPass
-import com.rtbishop.look4sat.core.domain.repository.IContainerProvider
+import com.rtbishop.look4sat.core.domain.repository.IMainContainer
 import com.rtbishop.look4sat.core.domain.repository.ISatelliteRepo
 import com.rtbishop.look4sat.core.domain.repository.ISettingsRepo
 import com.rtbishop.look4sat.core.domain.utility.round
@@ -200,11 +199,12 @@ class PassesViewModel(
     }
 
     companion object {
-        val Factory: ViewModelProvider.Factory = viewModelFactory {
-            val applicationKey = ViewModelProvider.AndroidViewModelFactory.APPLICATION_KEY
+        fun factory(container: IMainContainer) = viewModelFactory {
             initializer {
-                val container = (this[applicationKey] as IContainerProvider).getMainContainer()
-                PassesViewModel(container.satelliteRepo, container.settingsRepo)
+                PassesViewModel(
+                    satelliteRepo = container.satelliteRepo,
+                    settingsRepo = container.settingsRepo
+                )
             }
         }
     }

feature/radar/src/main/java/com/rtbishop/look4sat/feature/radar/RadarScreen.kt

@@ -48,6 +48,7 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.rotate
 import androidx.compose.ui.keepScreenOn
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.semantics.contentDescription
@@ -61,6 +62,7 @@ import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.lifecycle.viewmodel.compose.viewModel
 import com.rtbishop.look4sat.core.domain.model.SatRadio
 import com.rtbishop.look4sat.core.domain.predict.OrbitalPos
+import com.rtbishop.look4sat.core.domain.repository.IContainerProvider
 import com.rtbishop.look4sat.core.domain.utility.toDegrees
 import com.rtbishop.look4sat.core.presentation.EmptyListCard
 import com.rtbishop.look4sat.core.presentation.IconCard
@@ -81,10 +83,12 @@ fun RadarDestination(
     navigateUp: () -> Unit,
     navigateToRadioControl: (Int, Long) -> Unit = { _, _ -> }
 ) {
+    val context = LocalContext.current
+    val container = (context.applicationContext as IContainerProvider).getMainContainer()
     val viewModel = viewModel(
         modelClass = RadarViewModel::class.java,
         key = "$catNum-$aosTime",
-        factory = RadarViewModel.factory(catNum, aosTime)
+        factory = RadarViewModel.factory(catNum, aosTime, container)
     )
     val uiState by viewModel.uiState.collectAsStateWithLifecycle()
     RadarScreen(uiState, viewModel::onAction, navigateUp, navigateToRadioControl)

feature/radar/src/main/java/com/rtbishop/look4sat/feature/radar/RadarViewModel.kt

@@ -18,7 +18,6 @@
 package com.rtbishop.look4sat.feature.radar
 
 import androidx.lifecycle.ViewModel
-import androidx.lifecycle.ViewModelProvider
 import androidx.lifecycle.viewModelScope
 import androidx.lifecycle.viewmodel.initializer
 import androidx.lifecycle.viewmodel.viewModelFactory
@@ -26,7 +25,7 @@ import com.rtbishop.look4sat.core.domain.model.SatRadio
 import com.rtbishop.look4sat.core.domain.predict.CelestialComputer
 import com.rtbishop.look4sat.core.domain.predict.OrbitalObject
 import com.rtbishop.look4sat.core.domain.predict.OrbitalPos
-import com.rtbishop.look4sat.core.domain.repository.IContainerProvider
+import com.rtbishop.look4sat.core.domain.repository.IMainContainer
 import com.rtbishop.look4sat.core.domain.repository.IReporter
 import com.rtbishop.look4sat.core.domain.repository.ISatelliteRepo
 import com.rtbishop.look4sat.core.domain.repository.ISensorsRepo
@@ -214,10 +213,8 @@ class RadarViewModel(
     }
 
     companion object {
-        fun factory(catNum: Int, aosTime: Long): ViewModelProvider.Factory = viewModelFactory {
-            val applicationKey = ViewModelProvider.AndroidViewModelFactory.APPLICATION_KEY
+        fun factory(catNum: Int, aosTime: Long, container: IMainContainer) = viewModelFactory {
             initializer {
-                val container = (this[applicationKey] as IContainerProvider).getMainContainer()
                 RadarViewModel(
                     catNum = catNum,
                     aosTime = aosTime,

feature/radiocontrol/src/main/java/com/rtbishop/look4sat/feature/radiocontrol/RadioControlScreen.kt

@@ -45,6 +45,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.keepScreenOn
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
@@ -52,6 +53,7 @@ import androidx.compose.ui.unit.sp
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.lifecycle.viewmodel.compose.viewModel
 import com.rtbishop.look4sat.core.domain.model.SatRadio
+import com.rtbishop.look4sat.core.domain.repository.IContainerProvider
 import com.rtbishop.look4sat.core.presentation.CardButton
 import com.rtbishop.look4sat.core.presentation.IconCard
 import com.rtbishop.look4sat.core.presentation.NextPassRow
@@ -65,10 +67,12 @@ import java.util.Locale
 
 @Composable
 fun RadioControlDestination(catNum: Int = 0, aosTime: Long = 0L, navigateUp: () -> Unit) {
+    val context = LocalContext.current
+    val container = (context.applicationContext as IContainerProvider).getMainContainer()
     val viewModel = viewModel(
         modelClass = RadioControlViewModel::class.java,
         key = "$catNum-$aosTime",
-        factory = RadioControlViewModel.factory(catNum, aosTime)
+        factory = RadioControlViewModel.factory(catNum, aosTime, container)
     )
     val uiState by viewModel.uiState.collectAsStateWithLifecycle()
     RadioControlScreen(uiState, viewModel::onAction, navigateUp)

feature/radiocontrol/src/main/java/com/rtbishop/look4sat/feature/radiocontrol/RadioControlViewModel.kt

@@ -18,13 +18,12 @@
 package com.rtbishop.look4sat.feature.radiocontrol
 
 import androidx.lifecycle.ViewModel
-import androidx.lifecycle.ViewModelProvider
 import androidx.lifecycle.viewModelScope
 import androidx.lifecycle.viewmodel.initializer
 import androidx.lifecycle.viewmodel.viewModelFactory
 import com.rtbishop.look4sat.core.domain.model.SatRadio
 import com.rtbishop.look4sat.core.domain.predict.OrbitalPass
-import com.rtbishop.look4sat.core.domain.repository.IContainerProvider
+import com.rtbishop.look4sat.core.domain.repository.IMainContainer
 import com.rtbishop.look4sat.core.domain.repository.IRadioTrackingService
 import com.rtbishop.look4sat.core.domain.repository.ISatelliteRepo
 import com.rtbishop.look4sat.core.domain.repository.ISettingsRepo
@@ -173,10 +172,12 @@ class RadioControlViewModel(
 
     companion object {
 
-        val CTCSS_TONES = listOf(67.0, 69.3, 71.9, 74.4, 77.0, 79.7, 82.5, 85.4, 88.5, 91.5,
+        val CTCSS_TONES = listOf(
+            67.0, 69.3, 71.9, 74.4, 77.0, 79.7, 82.5, 85.4, 88.5, 91.5,
             94.8, 97.4, 100.0, 103.5, 107.2, 110.9, 114.8, 118.8, 123.0, 127.3, 131.8, 136.5,
             141.3, 146.2, 151.4, 156.7, 162.2, 167.9, 173.8, 179.9, 186.2, 192.8, 203.5, 210.7,
-            218.1, 225.7, 233.6, 241.8, 250.3)
+            218.1, 225.7, 233.6, 241.8, 250.3
+        )
 
         fun formatFrequency(frequencyHz: Long): String {
             if (frequencyHz <= 0) return "---"
@@ -186,10 +187,8 @@ class RadioControlViewModel(
             return String.format(Locale.ENGLISH, "%d.%03d.%03d", mhz, khz, hz)
         }
 
-        fun factory(catNum: Int, aosTime: Long): ViewModelProvider.Factory = viewModelFactory {
-            val applicationKey = ViewModelProvider.AndroidViewModelFactory.APPLICATION_KEY
+        fun factory(catNum: Int, aosTime: Long, container: IMainContainer) = viewModelFactory {
             initializer {
-                val container = (this[applicationKey] as IContainerProvider).getMainContainer()
                 RadioControlViewModel(
                     catNum = catNum,
                     aosTime = aosTime,

feature/satellites/src/main/java/com/rtbishop/look4sat/feature/satellites/SatellitesScreen.kt

@@ -44,6 +44,7 @@ import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.SolidColor
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.semantics.contentDescription
@@ -57,6 +58,7 @@ import androidx.compose.ui.unit.sp
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.lifecycle.viewmodel.compose.viewModel
 import com.rtbishop.look4sat.core.domain.model.SatItem
+import com.rtbishop.look4sat.core.domain.repository.IContainerProvider
 import com.rtbishop.look4sat.core.presentation.CardLoadingIndicator
 import com.rtbishop.look4sat.core.presentation.EmptyListCard
 import com.rtbishop.look4sat.core.presentation.IconCard
@@ -71,9 +73,11 @@ import com.rtbishop.look4sat.core.presentation.layoutPadding
 
 @Composable
 fun SatellitesDestination(navigateUp: () -> Unit) {
+    val context = LocalContext.current
+    val container = (context.applicationContext as IContainerProvider).getMainContainer()
     val viewModel = viewModel(
         modelClass = SatellitesViewModel::class.java,
-        factory = SatellitesViewModel.Factory
+        factory = SatellitesViewModel.factory(container)
     )
     val uiState = viewModel.uiState.collectAsStateWithLifecycle().value
     SatellitesScreen(uiState, viewModel::onAction, navigateUp)

feature/satellites/src/main/java/com/rtbishop/look4sat/feature/satellites/SatellitesViewModel.kt

@@ -18,11 +18,10 @@
 package com.rtbishop.look4sat.feature.satellites
 
 import androidx.lifecycle.ViewModel
-import androidx.lifecycle.ViewModelProvider
 import androidx.lifecycle.viewModelScope
 import androidx.lifecycle.viewmodel.initializer
 import androidx.lifecycle.viewmodel.viewModelFactory
-import com.rtbishop.look4sat.core.domain.repository.IContainerProvider
+import com.rtbishop.look4sat.core.domain.repository.IMainContainer
 import com.rtbishop.look4sat.core.domain.repository.ISelectionRepo
 import com.rtbishop.look4sat.core.domain.repository.ISettingsRepo
 import kotlinx.coroutines.flow.MutableStateFlow
@@ -97,11 +96,12 @@ class SatellitesViewModel(
     }
 
     companion object {
-        val Factory: ViewModelProvider.Factory = viewModelFactory {
-            val applicationKey = ViewModelProvider.AndroidViewModelFactory.APPLICATION_KEY
+        fun factory(container: IMainContainer) = viewModelFactory {
             initializer {
-                val container = (this[applicationKey] as IContainerProvider).getMainContainer()
-                SatellitesViewModel(container.selectionRepo, container.settingsRepo)
+                SatellitesViewModel(
+                    selectionRepo = container.selectionRepo,
+                    settingsRepo = container.settingsRepo
+                )
             }
         }
     }

feature/settings/src/main/java/com/rtbishop/look4sat/feature/settings/SettingsScreen.kt

@@ -51,6 +51,7 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.LocalUriHandler
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
@@ -62,6 +63,7 @@ import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.lifecycle.viewmodel.compose.viewModel
 import com.rtbishop.look4sat.core.domain.model.OtherSettings
 import com.rtbishop.look4sat.core.domain.predict.GeoPos
+import com.rtbishop.look4sat.core.domain.repository.IContainerProvider
 import com.rtbishop.look4sat.core.presentation.CardButton
 import com.rtbishop.look4sat.core.presentation.IconCard
 import com.rtbishop.look4sat.core.presentation.MainTheme
@@ -77,9 +79,11 @@ import java.util.Locale
 
 @Composable
 fun SettingsDestination() {
+    val context = LocalContext.current
+    val container = (context.applicationContext as IContainerProvider).getMainContainer()
     val viewModel = viewModel(
         modelClass = SettingsViewModel::class.java,
-        factory = SettingsViewModel.Factory
+        factory = SettingsViewModel.factory(container)
     )
     val uiState by viewModel.uiState.collectAsStateWithLifecycle()
     SettingsScreen(uiState, viewModel::onAction)

feature/settings/src/main/java/com/rtbishop/look4sat/feature/settings/SettingsViewModel.kt

@@ -18,12 +18,11 @@
 package com.rtbishop.look4sat.feature.settings
 
 import androidx.lifecycle.ViewModel
-import androidx.lifecycle.ViewModelProvider
 import androidx.lifecycle.viewModelScope
 import androidx.lifecycle.viewmodel.initializer
 import androidx.lifecycle.viewmodel.viewModelFactory
-import com.rtbishop.look4sat.core.domain.repository.IContainerProvider
 import com.rtbishop.look4sat.core.domain.repository.IDatabaseRepo
+import com.rtbishop.look4sat.core.domain.repository.IMainContainer
 import com.rtbishop.look4sat.core.domain.repository.ISettingsRepo
 import com.rtbishop.look4sat.core.domain.usecase.IShowToast
 import com.rtbishop.look4sat.core.presentation.R
@@ -188,14 +187,12 @@ class SettingsViewModel(
     // endregion
 
     companion object {
-        val Factory: ViewModelProvider.Factory = viewModelFactory {
-            val applicationKey = ViewModelProvider.AndroidViewModelFactory.APPLICATION_KEY
+        fun factory(container: IMainContainer) = viewModelFactory {
             initializer {
-                val container = (this[applicationKey] as IContainerProvider).getMainContainer()
                 SettingsViewModel(
-                    container.databaseRepo,
-                    container.settingsRepo,
-                    container.provideShowToast()
+                    databaseRepo = container.databaseRepo,
+                    settingsRepo = container.settingsRepo,
+                    showToast = container.provideShowToast()
                 )
             }
         }