Package the Rust mobile core and generated Kotlin API for Android (#92)

android/features/src/main/kotlin/de/rfc1437/ironstorage/features/ShellScreen.kt

@@ -18,6 +18,7 @@ import androidx.compose.ui.semantics.heading
 import androidx.compose.ui.semantics.semantics
 import androidx.compose.ui.unit.dp
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import de.rfc1437.ironstorage.core.NativeFailure
 import de.rfc1437.ironstorage.core.ShellState
 import de.rfc1437.ironstorage.core.ShellTab
 
@@ -44,12 +45,33 @@ fun ShellScreen(viewModel: ShellViewModel) {
         ) {
             Text(stringResource(R.string.app_name), style = MaterialTheme.typography.headlineLarge)
             val page = snapshot.pages.firstOrNull { it.tab == snapshot.selectedTab }
+            val nativeFailure = snapshot.nativeFailure
+            val title = if (nativeFailure != null) {
+                stringResource(R.string.native_failure_title)
+            } else {
+                page?.stateTitle ?: stringResource(R.string.scaffold_title)
+            }
+            val detail = if (nativeFailure == null) {
+                page?.detail ?: stringResource(R.string.scaffold_detail)
+            } else {
+                stringResource(
+                    when (nativeFailure) {
+                        NativeFailure.UnsupportedAbi -> R.string.native_unsupported_device
+                        NativeFailure.MissingLibrary,
+                        NativeFailure.ContractMismatch,
+                        NativeFailure.ChecksumMismatch,
+                        NativeFailure.LoadFailure -> R.string.native_update_required
+                        NativeFailure.RustFailure,
+                        NativeFailure.MainThreadCall -> R.string.native_operation_failed
+                    }
+                )
+            }
             Text(
-                page?.stateTitle ?: stringResource(R.string.scaffold_title),
+                title,
                 modifier = Modifier.semantics { heading() },
                 style = MaterialTheme.typography.headlineSmall
             )
-            Text(page?.detail ?: stringResource(R.string.scaffold_detail))
+            Text(detail)
             if (snapshot.state == ShellState.Loading) CircularProgressIndicator()
         }
     }

android/features/src/main/res/values/strings.xml

@@ -2,4 +2,8 @@
     <string name="app_name">IronStorage</string>
     <string name="scaffold_title">No Password Store</string>
     <string name="scaffold_detail">Your password store has not been configured.</string>
+    <string name="native_failure_title">IronStorage Is Unavailable</string>
+    <string name="native_unsupported_device">This device is not supported by this app build.</string>
+    <string name="native_update_required">The installed app components could not be loaded or do not match. Install a complete update without clearing app data.</string>
+    <string name="native_operation_failed">The app could not complete this operation. Try again.</string>
 </resources>