feat(i18n)/add main languages support

Android/src/app/src/main/java/com/google/ai/edge/gallery/GalleryAppTopBar.kt

@@ -133,7 +133,7 @@ fun GalleryTopAppBar(
 
         // Click a button to navigate up.
         AppBarActionType.NAVIGATE_UP -> {
-          TextButton(onClick = rightAction.actionFn) { Text("Done") }
+          TextButton(onClick = rightAction.actionFn) { Text(stringResource(R.string.done)) }
         }
 
         else -> {}

Android/src/app/src/main/java/com/google/ai/edge/gallery/common/Types.kt

@@ -16,6 +16,7 @@
 
 package com.google.ai.edge.gallery.common
 
+import androidx.annotation.StringRes
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.vector.ImageVector
 import com.squareup.moshi.JsonClass
@@ -65,6 +66,7 @@ data class SkillTryOutChip(
   val label: String,
   val prompt: String,
   val skillName: String,
+  @StringRes val labelResId: Int = 0,
 )
 
 data class SkillInfo(

Android/src/app/src/main/java/com/google/ai/edge/gallery/customtasks/agentchat/AddOrEditSkillBottomSheet.kt

@@ -679,7 +679,7 @@ private fun ScriptsTabContent(
     AlertDialog(
       onDismissRequest = { showDeleteConfirmation = false },
       title = { Text(stringResource(R.string.delete_script_dialog_title)) },
-      text = { Text("Are you sure you want to delete '$selectedScript'?") },
+      text = { Text(stringResource(R.string.delete_script_confirmation, selectedScript ?: "")) },
       confirmButton = {
         Button(
           onClick = {

Android/src/app/src/main/java/com/google/ai/edge/gallery/customtasks/agentchat/AgentChatScreen.kt

@@ -376,14 +376,14 @@ fun AgentChatScreen(
               )
               Text(
                 buildAnnotatedString {
-                  append("Use specialized, high-order reasoning by loading different skills or ")
+                  append(stringResource(R.string.agent_skills_description_part1))
                   append(
                     buildTrackableUrlAnnotatedString(
                       url = "https://github.com/google-ai-edge/gallery/tree/main/skills",
-                      linkText = "creating\u00A0your\u00A0own",
+                      linkText = stringResource(R.string.agent_skills_link_text),
                     )
                   )
-                  append(".\n\nTry tapping a sample prompt below to see Agent Skills in action!")
+                  append(stringResource(R.string.agent_skills_description_part2))
                 },
                 style =
                   MaterialTheme.typography.headlineSmall.copy(fontSize = 16.sp, lineHeight = 22.sp),
@@ -434,7 +434,10 @@ fun AgentChatScreen(
             ) {
               Icon(promptChip.icon, contentDescription = null, modifier = Modifier.size(20.dp))
               Spacer(modifier = Modifier.width(4.dp))
-              Text(promptChip.label)
+              Text(
+                if (promptChip.labelResId != 0) stringResource(promptChip.labelResId)
+                else promptChip.label
+              )
             }
           }
         }
@@ -490,7 +493,7 @@ fun AgentChatScreen(
   if (showAlertForDisabledSkill) {
     AlertDialog(
       onDismissRequest = { showAlertForDisabledSkill = false },
-      title = { Text("The \"$disabledSkillName\" skill is currently disabled") },
+      title = { Text(stringResource(R.string.skill_disabled_title, disabledSkillName)) },
       text = { Text(stringResource(R.string.enable_skill_dialog_content)) },
       confirmButton = {
         Button(onClick = { showAlertForDisabledSkill = false }) {

Android/src/app/src/main/java/com/google/ai/edge/gallery/customtasks/agentchat/AgentChatTaskModule.kt

@@ -30,24 +30,25 @@ import com.google.ai.edge.litertlm.tool
 import dagger.Module
 import dagger.Provides
 import dagger.hilt.InstallIn
+import dagger.hilt.android.qualifiers.ApplicationContext
 import dagger.hilt.components.SingletonComponent
 import dagger.multibindings.IntoSet
 import javax.inject.Inject
 import kotlinx.coroutines.CoroutineScope
 
-class AgentChatTask @Inject constructor() : CustomTask {
+class AgentChatTask @Inject constructor(private val context: Context) : CustomTask {
   private val agentTools = AgentTools()
 
   override val task: Task =
     Task(
       id = BuiltInTaskId.LLM_AGENT_CHAT,
-      label = "Agent Skills",
+      label = context.getString(R.string.task_agent_chat_label),
       category = Category.LLM,
       iconVectorResourceId = R.drawable.agent,
       newFeature = true,
       models = mutableListOf(),
-      description = "Chat with on-device large language models with skills and tools",
-      shortDescription = "Complete agentic tasks with chat",
+      description = context.getString(R.string.task_agent_chat_description),
+      shortDescription = context.getString(R.string.task_agent_chat_short_description),
       docUrl = "https://github.com/google-ai-edge/LiteRT-LM/blob/main/kotlin/README.md",
       sourceCodeUrl =
         "https://github.com/google-ai-edge/gallery/blob/main/Android/src/app/src/main/java/com/google/ai/edge/gallery/customtasks/agentchat/",
@@ -122,7 +123,7 @@ class AgentChatTask @Inject constructor() : CustomTask {
 internal object AgentChatTaskModule {
   @Provides
   @IntoSet
-  fun provideTask(): CustomTask {
-    return AgentChatTask()
+  fun provideTask(@ApplicationContext context: Context): CustomTask {
+    return AgentChatTask(context)
   }
 }

Android/src/app/src/main/java/com/google/ai/edge/gallery/customtasks/agentchat/SkillManagerViewModel.kt

@@ -42,6 +42,7 @@ import com.google.ai.edge.gallery.data.AllowedSkill
 import com.google.ai.edge.gallery.data.DataStoreRepository
 import com.google.ai.edge.gallery.data.SkillAllowlist
 import com.google.ai.edge.gallery.proto.Skill
+import com.google.ai.edge.gallery.R
 import com.google.ai.edge.litertlm.Contents
 import dagger.hilt.android.lifecycle.HiltViewModel
 import dagger.hilt.android.qualifiers.ApplicationContext
@@ -69,49 +70,57 @@ val TRYOUT_CHIPS: List<SkillTryOutChip> =
       label = "Interactive Map",
       prompt = "Show me Googleplex on interactive map.",
       skillName = "interactive-map",
+      labelResId = R.string.skill_chip_interactive_map,
     ),
     SkillTryOutChip(
       icon = Icons.Outlined.Kitchen,
       label = "Kitchen Adventure",
       prompt = "Start kitchen adventure",
       skillName = "kitchen-adventure",
+      labelResId = R.string.skill_chip_kitchen_adventure,
     ),
     SkillTryOutChip(
       icon = Icons.Outlined.Tag,
       label = "Calculate Hash",
       prompt = "What is the sha1 hash of \"gemma\"?",
       skillName = "calculate-hash",
+      labelResId = R.string.skill_chip_calculate_hash,
     ),
     SkillTryOutChip(
       icon = Icons.Outlined.ScreenRotation,
       label = "Text Spinner",
       prompt = "Spin \"Gemma\" on my head",
       skillName = "text-spinner",
+      labelResId = R.string.skill_chip_text_spinner,
     ),
     SkillTryOutChip(
       icon = Icons.Outlined.Email,
       label = "Send Email",
       prompt = "Send email 'Good morning' to abc@example.com. Content: 'Any plans for tonight?'",
       skillName = "send-email",
+      labelResId = R.string.skill_chip_send_email,
     ),
     SkillTryOutChip(
       icon = Icons.Outlined.SentimentVerySatisfied,
       label = "Track my mood",
       prompt =
         "Log yesterday's mood as 2 because it was raining quite heavily, and log today's mood as 9 because I had a great time playing pickleball again. Then show me my mood dashboard.",
       skillName = "mood-tracker",
+      labelResId = R.string.skill_chip_track_mood,
     ),
     SkillTryOutChip(
       icon = Icons.Outlined.LocalLibrary,
       label = "Query Wikipedia",
       prompt = "Check Wikipedia about Oscars 2026. Tell me who won the best picture.",
       skillName = "query-wikipedia",
+      labelResId = R.string.skill_chip_query_wikipedia,
     ),
     SkillTryOutChip(
       icon = Icons.Outlined.QrCode,
       label = "Generate QR code",
       prompt = "Generate QR code for https://deepmind.google/models/gemma/",
       skillName = "qr-code",
+      labelResId = R.string.skill_chip_generate_qr_code,
     ),
   )
 

Android/src/app/src/main/java/com/google/ai/edge/gallery/customtasks/agentchat/SkillTesterBottomSheet.kt

@@ -90,15 +90,15 @@ fun SkillTesterBottomSheet(agentTools: AgentTools, skill: Skill, onDismiss: () -
       OutlinedTextField(
         value = inputData,
         onValueChange = { inputData = it },
-        label = { Text("Input Data") },
+        label = { Text(stringResource(R.string.input_data)) },
         modifier = Modifier.fillMaxWidth().padding(bottom = 8.dp),
       )
 
       // Input for "custom data"
       OutlinedTextField(
         value = customData,
         onValueChange = { customData = it },
-        label = { Text("Custom Data") },
+        label = { Text(stringResource(R.string.custom_data)) },
         modifier = Modifier.fillMaxWidth().padding(bottom = 16.dp),
       )
 

Android/src/app/src/main/java/com/google/ai/edge/gallery/customtasks/examplecustomtask/ExampleCustomTaskScreen.kt

@@ -38,6 +38,8 @@ import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.ui.res.stringResource
+import com.google.ai.edge.gallery.R
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
@@ -63,9 +65,9 @@ data class ExampleCustomTaskModelInstance(val content: String)
  * These keys are used to uniquely identify and retrieve values for configurable parameters within a
  * model.
  */
-val EXAMPLE_CUSTOM_TASK_CONFIG_KEY_FONT_SIZE = ConfigKey(id = "font_size", label = "Font size")
+val EXAMPLE_CUSTOM_TASK_CONFIG_KEY_FONT_SIZE = ConfigKey(id = "font_size", label = "Font size", labelResId = R.string.config_label_font_size)
 val EXAMPLE_CUSTOM_TASK_CONFIG_KEY_MAX_CHAR_COUNT =
-  ConfigKey(id = "max_char_count", label = "Max character count")
+  ConfigKey(id = "max_char_count", label = "Max character count", labelResId = R.string.config_label_max_char_count)
 
 /**
  * A list of configurable parameters for the `ExampleCustomTask`'s models.
@@ -132,7 +134,10 @@ fun ExampleCustomTaskScreen(
         verticalAlignment = Alignment.CenterVertically,
         modifier = Modifier.padding(16.dp),
       ) {
-        Text("Text color: ")
+        Text(
+          stringResource(R.string.text_color_label),
+          color = MaterialTheme.colorScheme.onSurface,
+        )
         for (color in colors) {
           Box(
             modifier =

Android/src/app/src/main/java/com/google/ai/edge/gallery/customtasks/mobileactions/MobileActionsModule.kt

@@ -15,10 +15,12 @@
  */
 package com.google.ai.edge.gallery.customtasks.mobileactions
 
+import android.content.Context
 import com.google.ai.edge.gallery.customtasks.common.CustomTask
 import dagger.Module
 import dagger.Provides
 import dagger.hilt.InstallIn
+import dagger.hilt.android.qualifiers.ApplicationContext
 import dagger.hilt.components.SingletonComponent
 import dagger.multibindings.IntoSet
 
@@ -27,7 +29,7 @@ import dagger.multibindings.IntoSet
 internal object MobileActionsModule {
   @Provides
   @IntoSet
-  fun provideTask(): CustomTask {
-    return MobileActionsTask()
+  fun provideTask(@ApplicationContext context: Context): CustomTask {
+    return MobileActionsTask(context)
   }
 }

Android/src/app/src/main/java/com/google/ai/edge/gallery/customtasks/mobileactions/MobileActionsTask.kt

@@ -42,16 +42,16 @@ private const val TAG = "AGMATask"
  * A custom task that demonstrates how to use function calling to control various device
  * functionalities.
  */
-class MobileActionsTask @Inject constructor() : CustomTask {
+class MobileActionsTask @Inject constructor(private val context: Context) : CustomTask {
   private var curActions = mutableStateListOf<Action>()
   private val tools = listOf(tool(MobileActionsTools(onFunctionCalled = { curActions.add(it) })))
 
   override val task =
     Task(
       id = BuiltInTaskId.LLM_MOBILE_ACTIONS,
-      label = "Mobile Actions",
-      description = "Perform various device actions through Function Gemma",
-      shortDescription = "Leverage device mobile actions",
+      label = context.getString(R.string.task_mobile_actions_label),
+      description = context.getString(R.string.task_mobile_actions_description),
+      shortDescription = context.getString(R.string.task_mobile_actions_short_description),
       docUrl = "https://github.com/google-ai-edge/LiteRT-LM/blob/main/kotlin/README.md",
       sourceCodeUrl =
         "https://github.com/google-ai-edge/gallery/blob/main/Android/src/app/src/main/java/com/google/ai/edge/gallery/customtasks/mobileactions",

Android/src/app/src/main/java/com/google/ai/edge/gallery/customtasks/tinygarden/TinyGardenTask.kt

@@ -67,7 +67,7 @@ Tips:
 """
 
 /** A custom task that demonstrates how to use FunctionGemma to play a simple gardening game. */
-class TinyGardenTask @Inject constructor() : CustomTask {
+class TinyGardenTask @Inject constructor(private val context: Context) : CustomTask {
   private val _updateChannel = Channel<TinyGardenCommand>(Channel.BUFFERED)
   private val commandFlow = _updateChannel.receiveAsFlow()
   private val tools =
@@ -84,10 +84,9 @@ class TinyGardenTask @Inject constructor() : CustomTask {
   override val task =
     Task(
       id = BuiltInTaskId.LLM_TINY_GARDEN,
-      label = "Tiny Garden",
-      description =
-        "Use natural language to plant, water, and harvest in this fully offline mini-game.\n\nNote: This is powered by the experimental FunctionGemma model optimized for latency. Due to its compact size (270M), it works well on simple instructions but responses may vary to more complex interactions.",
-      shortDescription = "Use natural language to plant",
+      label = context.getString(R.string.task_tiny_garden_label),
+      description = context.getString(R.string.task_tiny_garden_description),
+      shortDescription = context.getString(R.string.task_tiny_garden_short_description),
       docUrl = "https://github.com/google-ai-edge/LiteRT-LM/blob/main/kotlin/README.md",
       sourceCodeUrl =
         "https://github.com/google-ai-edge/gallery/blob/main/Android/src/app/src/main/java/com/google/ai/edge/gallery/customtasks/tinygarden",

Android/src/app/src/main/java/com/google/ai/edge/gallery/customtasks/tinygarden/TinyGardenTaskModule.kt

@@ -15,10 +15,12 @@
  */
 package com.google.ai.edge.gallery.customtasks.tinygarden
 
+import android.content.Context
 import com.google.ai.edge.gallery.customtasks.common.CustomTask
 import dagger.Module
 import dagger.Provides
 import dagger.hilt.InstallIn
+import dagger.hilt.android.qualifiers.ApplicationContext
 import dagger.hilt.components.SingletonComponent
 import dagger.multibindings.IntoSet
 
@@ -27,7 +29,7 @@ import dagger.multibindings.IntoSet
 internal object TinyGardenTaskModule {
   @Provides
   @IntoSet
-  fun provideTask(): CustomTask {
-    return TinyGardenTask()
+  fun provideTask(@ApplicationContext context: Context): CustomTask {
+    return TinyGardenTask(context)
   }
 }

Android/src/app/src/main/java/com/google/ai/edge/gallery/data/Config.kt

@@ -17,6 +17,7 @@
 package com.google.ai.edge.gallery.data
 
 import androidx.annotation.StringRes
+import com.google.ai.edge.gallery.R
 import kotlin.math.abs
 
 /**
@@ -42,40 +43,40 @@ enum class ValueType {
   BOOLEAN,
 }
 
-data class ConfigKey(val id: String, val label: String)
+data class ConfigKey(val id: String, val label: String, @StringRes val labelResId: Int? = null)
 
 object ConfigKeys {
-  val MAX_TOKENS = ConfigKey("max_tokens", "Max tokens")
-  val TOPK = ConfigKey("topk", "TopK")
-  val TOPP = ConfigKey("topp", "TopP")
-  val TEMPERATURE = ConfigKey("temperature", "Temperature")
-  val DEFAULT_MAX_TOKENS = ConfigKey("default_max_tokens", "Default max tokens")
-  val DEFAULT_TOPK = ConfigKey("default_topk", "Default TopK")
-  val DEFAULT_TOPP = ConfigKey("default_topp", "Default TopP")
-  val DEFAULT_TEMPERATURE = ConfigKey("default_temperature", "Default temperature")
-  val SUPPORT_IMAGE = ConfigKey("support_image", "Support image")
-  val SUPPORT_AUDIO = ConfigKey("support_audio", "Support audio")
-  val SUPPORT_TINY_GARDEN = ConfigKey("support_tiny_garden", "Support tiny garden")
-  val SUPPORT_MOBILE_ACTIONS = ConfigKey("support_mobile_actions", "Support mobile actions")
-  val SUPPORT_THINKING = ConfigKey("support_thinking", "Support thinking")
-  val ENABLE_THINKING = ConfigKey("enable_thinking", "Enable thinking")
-  val MAX_RESULT_COUNT = ConfigKey("max_result_count", "Max result count")
-  val USE_GPU = ConfigKey("use_gpu", "Use GPU")
-  val ACCELERATOR = ConfigKey("accelerator", "Accelerator")
-  val VISION_ACCELERATOR = ConfigKey("vision_accelerator", "Vision accelerator")
-  val COMPATIBLE_ACCELERATORS = ConfigKey("compatible_accelerators", "Compatible accelerators")
-  val WARM_UP_ITERATIONS = ConfigKey("warm_up_iterations", "Warm up iterations")
-  val BENCHMARK_ITERATIONS = ConfigKey("benchmark_iterations", "Benchmark iterations")
-  val ITERATIONS = ConfigKey("iterations", "Iterations")
-  val THEME = ConfigKey("theme", "Theme")
-  val NAME = ConfigKey("name", "Name")
-  val MODEL_TYPE = ConfigKey("model_type", "Model type")
-  val MODEL = ConfigKey("model", "Model")
+  val MAX_TOKENS = ConfigKey("max_tokens", "Max tokens", R.string.config_label_max_tokens)
+  val TOPK = ConfigKey("topk", "TopK", R.string.config_label_topk)
+  val TOPP = ConfigKey("topp", "TopP", R.string.config_label_topp)
+  val TEMPERATURE = ConfigKey("temperature", "Temperature", R.string.config_label_temperature)
+  val DEFAULT_MAX_TOKENS = ConfigKey("default_max_tokens", "Default max tokens", R.string.config_label_default_max_tokens)
+  val DEFAULT_TOPK = ConfigKey("default_topk", "Default TopK", R.string.config_label_default_topk)
+  val DEFAULT_TOPP = ConfigKey("default_topp", "Default TopP", R.string.config_label_default_topp)
+  val DEFAULT_TEMPERATURE = ConfigKey("default_temperature", "Default temperature", R.string.config_label_default_temperature)
+  val SUPPORT_IMAGE = ConfigKey("support_image", "Support image", R.string.config_label_support_image)
+  val SUPPORT_AUDIO = ConfigKey("support_audio", "Support audio", R.string.config_label_support_audio)
+  val SUPPORT_TINY_GARDEN = ConfigKey("support_tiny_garden", "Support tiny garden", R.string.config_label_support_tiny_garden)
+  val SUPPORT_MOBILE_ACTIONS = ConfigKey("support_mobile_actions", "Support mobile actions", R.string.config_label_support_mobile_actions)
+  val SUPPORT_THINKING = ConfigKey("support_thinking", "Support thinking", R.string.config_label_support_thinking)
+  val ENABLE_THINKING = ConfigKey("enable_thinking", "Enable thinking", R.string.config_label_enable_thinking)
+  val MAX_RESULT_COUNT = ConfigKey("max_result_count", "Max result count", R.string.config_label_max_result_count)
+  val USE_GPU = ConfigKey("use_gpu", "Use GPU", R.string.config_label_use_gpu)
+  val ACCELERATOR = ConfigKey("accelerator", "Accelerator", R.string.config_label_accelerator)
+  val VISION_ACCELERATOR = ConfigKey("vision_accelerator", "Vision accelerator", R.string.config_label_vision_accelerator)
+  val COMPATIBLE_ACCELERATORS = ConfigKey("compatible_accelerators", "Compatible accelerators", R.string.config_label_compatible_accelerators)
+  val WARM_UP_ITERATIONS = ConfigKey("warm_up_iterations", "Warm up iterations", R.string.config_label_warm_up_iterations)
+  val BENCHMARK_ITERATIONS = ConfigKey("benchmark_iterations", "Benchmark iterations", R.string.config_label_benchmark_iterations)
+  val ITERATIONS = ConfigKey("iterations", "Iterations", R.string.config_label_iterations)
+  val THEME = ConfigKey("theme", "Theme", R.string.config_label_theme)
+  val NAME = ConfigKey("name", "Name", R.string.config_label_name)
+  val MODEL_TYPE = ConfigKey("model_type", "Model type", R.string.config_label_model_type)
+  val MODEL = ConfigKey("model", "Model", R.string.config_label_model)
   val RESET_CONVERSATION_TURN_COUNT =
-    ConfigKey("reset_conversation_turn_count", "Number of turns before the conversation resets")
-  val PREFILL_TOKENS = ConfigKey("prefill_tokens", "Prefill tokens")
-  val DECODE_TOKENS = ConfigKey("decode_tokens", "Decode tokens")
-  val NUMBER_OF_RUNS = ConfigKey("number_of_runs", "Number of runs")
+    ConfigKey("reset_conversation_turn_count", "Number of turns before the conversation resets", R.string.config_label_reset_conversation_turn_count)
+  val PREFILL_TOKENS = ConfigKey("prefill_tokens", "Prefill tokens", R.string.config_label_prefill_tokens)
+  val DECODE_TOKENS = ConfigKey("decode_tokens", "Decode tokens", R.string.config_label_decode_tokens)
+  val NUMBER_OF_RUNS = ConfigKey("number_of_runs", "Number of runs", R.string.config_label_number_of_runs)
 }
 
 /**