Added passes list recalculation on app launch if there are selected satellites

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

@@ -129,7 +129,8 @@ class MainViewModel(application: Application) : AndroidViewModel(application) {
                     tleSelection.forEach { indexOfSelection ->
                         val tle = tleMainList[indexOfSelection]
                         try {
-                            val predictor = PassPredictor(tle, getGSP().value!!)
+                            val gsp = getGSP().value ?: GroundStationPosition(0.0, 0.0, 0.0)
+                            val predictor = PassPredictor(tle, gsp)
                             val passes = predictor.getPasses(dateNow, getHoursAhead(), true)
                             passes.forEach {
                                 passList.add(SatPass(tle, predictor, it))

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

@@ -52,6 +52,7 @@ class PassListFragment : Fragment(R.layout.fragment_pass_list) {
     private lateinit var mainActivity: MainActivity
     private lateinit var satPassList: MutableList<SatPass>
     private var isTimerSet: Boolean = false
+    private var isFirstLaunch: Boolean = true
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
@@ -64,6 +65,10 @@ class PassListFragment : Fragment(R.layout.fragment_pass_list) {
         btnPassPrefs = mainActivity.findViewById(R.id.toolbar_filter)
         setupComponents(fragmentBinding)
         setupObservers(fragmentBinding)
+        if (viewModel.tleSelection.isNotEmpty() && isFirstLaunch) {
+            viewModel.getPasses()
+            isFirstLaunch = false
+        }
     }
 
     private fun setupComponents(binding: FragmentPassListBinding) {