Added preference for PolarView rotation

app/src/main/java/com/rtbishop/look4sat/ui/SharedViewModel.kt

@@ -55,6 +55,7 @@ class SharedViewModel @Inject constructor(
     fun getUpdateStatus(): LiveData<Result<Int>> = _updateStatus
     fun getGSP(): LiveData<Result<GroundStationPosition>> = _gsp
 
+    fun getCompass() = prefsManager.getCompass()
     fun getRefreshRate() = prefsManager.getRefreshRate()
     fun getHoursAhead() = prefsManager.getHoursAhead()
     fun getMinElevation() = prefsManager.getMinElevation()

app/src/main/java/com/rtbishop/look4sat/ui/fragments/PolarViewFragment.kt

@@ -82,17 +82,21 @@ class PolarViewFragment : Fragment(R.layout.fragment_polar_view), SensorEventLis
 
     override fun onResume() {
         super.onResume()
-        sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER).also { accData ->
-            sensorManager.registerListener(this, accData, SensorManager.SENSOR_DELAY_GAME)
-        }
-        sensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD).also { magData ->
-            sensorManager.registerListener(this, magData, SensorManager.SENSOR_DELAY_GAME)
+        if (viewModel.getCompass()) {
+            sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER).also { accData ->
+                sensorManager.registerListener(this, accData, SensorManager.SENSOR_DELAY_GAME)
+            }
+            sensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD).also { magData ->
+                sensorManager.registerListener(this, magData, SensorManager.SENSOR_DELAY_GAME)
+            }
         }
     }
 
     override fun onPause() {
         super.onPause()
-        sensorManager.unregisterListener(this)
+        if (viewModel.getCompass()) {
+            sensorManager.unregisterListener(this)
+        }
     }
 
     override fun onAccuracyChanged(sensor: Sensor?, accuracy: Int) {}
@@ -152,7 +156,6 @@ class PolarViewFragment : Fragment(R.layout.fragment_polar_view), SensorEventLis
 
     private fun refreshText(rate: Long) {
         refreshJob?.cancel()
-        refreshJob = null
         refreshJob = lifecycleScope.launch {
             while (true) {
                 setPassText()

app/src/main/java/com/rtbishop/look4sat/utility/PrefsManager.kt

@@ -35,6 +35,7 @@ class PrefsManager @Inject constructor(
     private val keyLongitude = "longitude"
     private val keyAltitude = "altitude"
     private val keyRefreshRate = "rate"
+    private val keyCompass = "compass"
     private val defaultHoursAhead = 8
     private val defaultMinEl = 16.0
     private val defaultRefreshRate = "3000"
@@ -52,6 +53,10 @@ class PrefsManager @Inject constructor(
         return preferences.getString(keyRefreshRate, defaultRefreshRate)!!.toLong()
     }
 
+    fun getCompass(): Boolean {
+        return preferences.getBoolean(keyCompass, false)
+    }
+
     fun getPosition(): GroundStationPosition {
         val lat = preferences.getString(keyLatitude, defaultGSP)!!.toDouble()
         val lon = preferences.getString(keyLongitude, defaultGSP)!!.toDouble()

app/src/main/res/values/strings.xml

@@ -69,6 +69,8 @@
     <string name="pref_refresh_rate_key" translatable="false">rate</string>
     <string name="pref_refresh_rate_title">View refresh rate, ms</string>
     <string name="pref_refresh_rate_input_error">Set the value between 250ms and 10000ms</string>
+    <string name="pref_compass_key" translatable="false">compass</string>
+    <string name="pref_compass_title" translatable="false">Use sensors to rotate PolarView</string>
 
     <string name="no_mode">Mode: Null</string>
     <string name="no_uplink">Uplink: Null</string>

app/src/main/res/xml/preference.xml

@@ -45,5 +45,9 @@
             android:selectAllOnFocus="true"
             android:singleLine="true"
             android:title="@string/pref_refresh_rate_title" />
+        <SwitchPreference
+            android:defaultValue="false"
+            android:key="@string/pref_compass_key"
+            android:title="@string/pref_compass_title" />
     </PreferenceCategory>
 </PreferenceScreen>