Minor fixes to resources and UI

app/src/main/java/com/rtbishop/look4sat/ui/mainScreen/MapFragment.kt

@@ -64,7 +64,7 @@ class MapFragment : Fragment(R.layout.fragment_map) {
         trackPaint = Paint().apply {
             strokeWidth = 2f
             style = Paint.Style.STROKE
-            color = ContextCompat.getColor(requireContext(), R.color.satTrack)
+            color = Color.RED
             strokeCap = Paint.Cap.ROUND
             strokeJoin = Paint.Join.ROUND
             isAntiAlias = true
@@ -112,11 +112,9 @@ class MapFragment : Fragment(R.layout.fragment_map) {
             }
         })
         viewModel.getSelectedPass().observe(viewLifecycleOwner, { satPass ->
-            satPass?.let {
-                selectedSat = satPass
-                setSelectedSatDetails(satPass)
-                scrollToSat(satPass)
-            }
+            selectedSat = satPass
+            setSelectedSatDetails(satPass)
+            scrollToSat(satPass)
         })
         viewModel.getSatMarkers().observe(viewLifecycleOwner, {
             setMarkers(it)
@@ -223,7 +221,7 @@ class MapFragment : Fragment(R.layout.fragment_map) {
     }
 
     private fun getColorFilter(): ColorMatrixColorFilter {
-        val targetColor = ContextCompat.getColor(requireContext(), R.color.satTrack)
+        val targetColor = Color.RED
         val newR = Color.red(targetColor) / 255f
         val newG = Color.green(targetColor) / 255f
         val newB = Color.blue(targetColor) / 255f

app/src/main/java/com/rtbishop/look4sat/ui/mainScreen/MapViewModel.kt

@@ -9,6 +9,7 @@ import com.github.amsacode.predict4java.GroundStationPosition
 import com.github.amsacode.predict4java.Position
 import com.rtbishop.look4sat.data.SatPass
 import com.rtbishop.look4sat.utility.PrefsManager
+import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import java.util.*
@@ -23,8 +24,8 @@ class MapViewModel @ViewModelInject constructor(prefsManager: PrefsManager) : Vi
     private val _gsp = MutableLiveData(prefsManager.getStationPosition())
     fun getGSP(): LiveData<GroundStationPosition> = _gsp
 
-    private val _selectedPass = MutableLiveData<SatPass?>()
-    fun getSelectedPass(): LiveData<SatPass?> = _selectedPass
+    private val _selectedPass = MutableLiveData<SatPass>()
+    fun getSelectedPass(): LiveData<SatPass> = _selectedPass
 
     private val _satMarkers = MutableLiveData<Map<SatPass, Position>>()
     fun getSatMarkers(): LiveData<Map<SatPass, Position>> = _satMarkers
@@ -36,16 +37,15 @@ class MapViewModel @ViewModelInject constructor(prefsManager: PrefsManager) : Vi
     }
 
     private fun calculateSatPos(passes: List<SatPass>) {
-        viewModelScope.launch {
+        viewModelScope.launch(Dispatchers.Default) {
             while (true) {
                 val passesMap = mutableMapOf<SatPass, Position>()
                 dateNow.time = System.currentTimeMillis()
                 passes.forEach {
                     val satPos = it.predictor.getSatPos(dateNow)
-                    val osmPos = getOsmPosition(satPos.latitude, satPos.longitude, true)
-                    passesMap[it] = osmPos
+                    passesMap[it] = getOsmPosition(satPos.latitude, satPos.longitude, true)
                 }
-                _satMarkers.value = passesMap
+                _satMarkers.postValue(passesMap)
                 delay(2000)
             }
         }

app/src/main/java/com/rtbishop/look4sat/ui/views/PolarView.kt

@@ -2,6 +2,7 @@ package com.rtbishop.look4sat.ui.views
 
 import android.content.Context
 import android.graphics.Canvas
+import android.graphics.Color
 import android.graphics.Paint
 import android.graphics.Path
 import android.view.View
@@ -23,7 +24,7 @@ class PolarView(context: Context) : View(context) {
     private val polarCenter = polarWidth / 2f
     private val scale = resources.displayMetrics.density
     private val radius = polarWidth * 0.48f
-    private val txtSize = scale * 16
+    private val txtSize = scale * 16f
     private val path: Path = Path()
     private val piDiv2 = Math.PI / 2.0
 
@@ -31,7 +32,7 @@ class PolarView(context: Context) : View(context) {
         isAntiAlias = true
         color = ContextCompat.getColor(context, R.color.greyLight)
         style = Paint.Style.STROKE
-        strokeWidth = scale * 1.6f
+        strokeWidth = scale * 2f
     }
     private val txtPaint = Paint().apply {
         isAntiAlias = true
@@ -40,9 +41,9 @@ class PolarView(context: Context) : View(context) {
     }
     private val trackPaint = Paint().apply {
         isAntiAlias = true
-        color = ContextCompat.getColor(context, R.color.satTrack)
+        color = Color.RED
         style = Paint.Style.STROKE
-        strokeWidth = scale * 1.6f
+        strokeWidth = scale * 2f
     }
     private val satPaint = Paint().apply {
         isAntiAlias = true
@@ -96,7 +97,7 @@ class PolarView(context: Context) : View(context) {
         if (satPos.elevation > 0) {
             val x = sph2CartX(satPos.azimuth, satPos.elevation, radius.toDouble())
             val y = sph2CartY(satPos.azimuth, satPos.elevation, radius.toDouble())
-            cvs.drawCircle(x, -y, txtSize / 2.6f, satPaint)
+            cvs.drawCircle(x, -y, txtSize / 2.4f, satPaint)
         }
     }