Make translatable

Much to translate huh
Also added snackbar

app/build.gradle.kts

@@ -30,17 +30,24 @@ android {
             )
         }
     }
+
     compileOptions {
         sourceCompatibility = JavaVersion.VERSION_11
         targetCompatibility = JavaVersion.VERSION_11
     }
+
     kotlinOptions {
         jvmTarget = "11"
     }
+
     buildFeatures {
         compose = true
         buildConfig = true
     }
+
+    androidResources {
+        generateLocaleConfig = true
+    }
 }
 
 dependencies {

app/src/main/AndroidManifest.xml

@@ -18,7 +18,6 @@
         <activity
             android:name=".activity.chat.ChatActivity"
             android:exported="true"
-            android:label="@string/title_activity_chat"
             android:theme="@style/Theme.ChatApp"
             android:windowSoftInputMode="adjustNothing">
             <intent-filter>
@@ -30,7 +29,6 @@
         <activity
             android:name=".activity.select.SelectModelActivity"
             android:exported="true"
-            android:label="@string/title_activity_chat"
             android:theme="@style/Theme.ChatApp" />
     </application>
 

app/src/main/java/eu/m724/chatapp/activity/chat/ChatActivity.kt

@@ -39,7 +39,9 @@ import androidx.compose.material3.IconButtonDefaults
 import androidx.compose.material3.LocalTextStyle
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Scaffold
+import androidx.compose.material3.SnackbarHost
 import androidx.compose.material3.SnackbarHostState
+import androidx.compose.material3.SnackbarResult
 import androidx.compose.material3.Text
 import androidx.compose.material3.windowsizeclass.ExperimentalMaterial3WindowSizeClassApi
 import androidx.compose.material3.windowsizeclass.WindowSizeClass
@@ -59,9 +61,11 @@ import androidx.compose.ui.focus.focusRequester
 import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.LocalSoftwareKeyboardController
+import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import dagger.hilt.android.AndroidEntryPoint
+import eu.m724.chatapp.R
 import eu.m724.chatapp.activity.chat.ChatState.Companion.rememberChatState
 import eu.m724.chatapp.activity.chat.composable.AnimatedChangingText
 import eu.m724.chatapp.activity.chat.composable.LanguageModelMistakeWarning
@@ -92,6 +96,7 @@ class ChatActivity : ComponentActivity() {
             val coroutineScope = rememberCoroutineScope()
             val chatState = rememberChatState()
             val threadViewLazyListState = rememberLazyListState()
+            val snackbarHostState = remember { SnackbarHostState() }
 
             val onSend = {
                 if (chatState.composerValue.isNotBlank() && !uiState.requestInProgress) {
@@ -104,6 +109,7 @@ class ChatActivity : ComponentActivity() {
                 uiState = uiState,
                 chatState = chatState,
                 threadViewLazyListState = threadViewLazyListState,
+                snackbarHostState = snackbarHostState,
                 onSend = onSend,
                 onRequestFocus = {
                     if (uiState.requestInProgress) return@ChatScreen
@@ -128,9 +134,11 @@ class ChatActivity : ComponentActivity() {
 
                     // scroll to the last user message
                     threadViewLazyListState.animateScrollToItem(uiState.messages.size - 2)
-                } else if (uiState.messages.isNotEmpty()) {
-                    // scroll to the last user message too
-                    threadViewLazyListState.animateScrollToItem(uiState.messages.size - 2)
+                } else {
+                    if (uiState.messages.isNotEmpty()) {
+                        // scroll to the last user message too
+                        threadViewLazyListState.animateScrollToItem(uiState.messages.size - 2)
+                    }
 
                     // if the composer is visible (message is short enough), focus on it
                     // if the message is long, we let the user read it
@@ -147,16 +155,12 @@ class ChatActivity : ComponentActivity() {
                 viewModel.uiEvents.collect { event ->
                     when (event) {
                         is ChatActivityUiEvent.Error -> {
-                            Toast.makeText(context, event.error, Toast.LENGTH_SHORT)
-                                .show() // TODO better way of showing this. snackbar?
+                            // TODO add a smart action, for example check api key if unauthorized etc
 
-                            // the user might have scrolled so this is good
-                            threadViewLazyListState.layoutInfo.visibleItemsInfo.firstOrNull {
-                                it.key == "composer"
-                            }?.let {
-                                chatState.requestFocus()
-                                softwareKeyboardController?.show() // TODO perhaps it's pointless to focus since we can click on the toolbar? maybe make it configurable
-                            }
+                            snackbarHostState.showSnackbar(
+                                message = event.error, // TODO consider a generic message
+                                withDismissAction = true
+                            )
                         }
                     }
                 }
@@ -171,6 +175,7 @@ fun ChatScreen(
     uiState: ChatActivityUiState,
     chatState: ChatState,
     threadViewLazyListState: LazyListState,
+    snackbarHostState: SnackbarHostState,
     onSend: () -> Unit,
     onRequestFocus: () -> Unit
 ) {
@@ -180,7 +185,14 @@ fun ChatScreen(
         Scaffold(
             modifier = Modifier.fillMaxSize(),
             topBar = {
-                ChatTopAppBar(uiState.chatTitle ?: "Start a new conversation")
+                ChatTopAppBar(
+                    title = uiState.chatTitle ?: stringResource(R.string.title_new_conversation)
+                )
+            },
+            snackbarHost = {
+                SnackbarHost(
+                    hostState = snackbarHostState
+                )
             }
         ) { innerPadding ->
             ChatScreenContent(
@@ -370,7 +382,9 @@ fun ChatMessageComposer(
         value = value,
         onValueChange = onValueChange,
         placeholder = {
-            Text("Type your message...") // TODO hide when just browsing history?
+            Text(
+                text = stringResource(R.string.composer_placeholder_type)
+            ) // TODO hide when just browsing history?
         },
         padding = PaddingValues(vertical = 10.dp),
         textStyle = LocalTextStyle.current.copy(
@@ -417,7 +431,7 @@ fun ChatToolBar(
             ) {
                 Icon(
                     imageVector = Icons.AutoMirrored.Filled.Send,
-                    contentDescription = "Send"
+                    contentDescription = stringResource(R.string.button_send_icon_description)
                 )
             }
         }

app/src/main/res/resources.properties

@@ -0,0 +1 @@
+unqualifiedResLocale=en-US

app/src/main/res/values/strings.xml

@@ -1,5 +1,6 @@
 <resources>
-    <string name="app_name">Chat App</string>
-    <string name="title_activity_main">MainActivity</string>
-    <string name="title_activity_chat">ChatActivity</string>
+    <string name="app_name">Chat</string>
+    <string name="title_new_conversation">Start a new conversation</string>
+    <string name="button_send_icon_description">Send message</string>
+    <string name="composer_placeholder_type">Type your message…</string>
 </resources>