Update DirectionsFragment.kt

grote · Dec 6, 2023 · 41cdcd2 · 41cdcd2
1 parent 088cf3f
commit 41cdcd2
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/app/src/main/java/de/grobox/transportr/trips/search/DirectionsFragment.kt b/app/src/main/java/de/grobox/transportr/trips/search/DirectionsFragment.kt
@@ -111,8 +111,10 @@ class DirectionsFragment : TransportrFragment() {
             fromLocation.setLocation(it)
             if (it != null) toLocation.requestFocus()
         })
+        viewModel.fromLocation.observe(viewLifecycleOwner, { onLocationsChanged() })
         viewModel.viaLocation.observe(viewLifecycleOwner, { viaLocation.setLocation(it) })
         viewModel.toLocation.observe(viewLifecycleOwner, { toLocation.setLocation(it) })
+        viewModel.toLocation.observe(viewLifecycleOwner, { onLocationsChanged() })
         viewModel.viaSupported.observe(viewLifecycleOwner, { viaIcon.visibility = if (it) VISIBLE else GONE })
         viewModel.isDeparture.observe(viewLifecycleOwner, { onIsDepartureChanged(it) })
         viewModel.isExpanded.observe(viewLifecycleOwner, { onViaVisibleChanged(it) })
@@ -148,6 +150,12 @@ class DirectionsFragment : TransportrFragment() {
         TooltipCompat.setTooltipText(viaIcon, getString(R.string.action_navigation_expand))
     }
 
+    private fun onLocationsChanged() {
+        val fromNotEmpty = this.viewModel.fromLocation.value != null
+        val toNotEmpty = this.viewModel.toLocation.value != null
+        swapIcon.visibility = if (fromNotEmpty || toNotEmpty) VISIBLE else GONE
+    }
+
     override fun onSaveInstanceState(outState: Bundle) {
         super.onSaveInstanceState(outState)
         outState.putSerializable(DATE, viewModel.lastQueryCalendar.value)
@@ -272,3 +280,4 @@ class DirectionsFragment : TransportrFragment() {
     }
 
 }
+