fix(ui): Show acquiring location state instead of unavailable (#621)

* fix(ui): Show acquiring location state instead of unavailable

This change updates the LocationNotesSheetPresenter to display an 'Acquiring Location' sheet when location permissions are granted but the location is still loading. This prevents the misleading 'Location Unavailable' error on devices with slow GPS start-up (e.g., GrapheneOS).

Fixes #578

* Adjust text

---------

Co-authored-by: a1denvalu3 <>

app/src/main/java/com/bitchat/android/ui/LocationNotesSheetPresenter.kt

@@ -28,6 +28,8 @@ fun LocationNotesSheetPresenter(
     val context = LocalContext.current
     val locationManager = remember { LocationChannelManager.getInstance(context) }
     val availableChannels by locationManager.availableChannels.collectAsStateWithLifecycle()
+    val permissionState by locationManager.permissionState.collectAsStateWithLifecycle()
+    val isLoadingLocation by locationManager.isLoadingLocation.collectAsStateWithLifecycle()
     val nickname by viewModel.nickname.collectAsStateWithLifecycle()
     
     // iOS pattern: notesGeohash ?? LocationChannelManager.shared.availableChannels.first(where: { $0.level == .building })?.geohash
@@ -45,6 +47,8 @@ fun LocationNotesSheetPresenter(
             nickname = nickname,
             onDismiss = onDismiss
         )
+    } else if (permissionState == LocationChannelManager.PermissionState.AUTHORIZED && isLoadingLocation) {
+        LocationNotesAcquiringSheet(onDismiss = onDismiss)
     } else {
         // No building geohash available - show error state (matches iOS)
         LocationNotesErrorSheet(
@@ -54,6 +58,43 @@ fun LocationNotesSheetPresenter(
     }
 }
 
+/**
+ * Loading sheet when location is being acquired
+ */
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun LocationNotesAcquiringSheet(
+    onDismiss: () -> Unit
+) {
+    BitchatBottomSheet(
+        onDismissRequest = onDismiss,
+    ) {
+        Column(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(24.dp),
+            horizontalAlignment = Alignment.CenterHorizontally
+        ) {
+            Text(
+                text = "Acquiring Location",
+                style = MaterialTheme.typography.titleMedium,
+                color = MaterialTheme.colorScheme.onSurface
+            )
+            Spacer(modifier = Modifier.height(24.dp))
+            CircularProgressIndicator(
+                modifier = Modifier.size(48.dp),
+                color = MaterialTheme.colorScheme.primary
+            )
+            Spacer(modifier = Modifier.height(24.dp))
+            Text(
+                text = "Please wait while your location is being determined",
+                style = MaterialTheme.typography.bodyMedium,
+                color = MaterialTheme.colorScheme.onSurfaceVariant
+            )
+        }
+    }
+}
+
 /**
  * Error sheet when location is unavailable
  */