agent: Add image generation appfunction

ChatApp/app/src/androidTest/kotlin/com/example/chatapp/appfunctions/AppFunctionInstrumentationTest.kt

@@ -24,7 +24,6 @@ import androidx.appfunctions.ExecuteAppFunctionRequest
 import androidx.appfunctions.ExecuteAppFunctionResponse
 import androidx.test.core.app.ApplicationProvider
 import androidx.test.ext.junit.runners.AndroidJUnit4
-import com.example.chatapp.appfunctions.ChatAppFunctionService
 import com.example.chatapp.data.MessageRepository
 import com.example.chatapp.data.RecipientsRepository
 import com.google.common.truth.Truth.assertThat

ChatApp/app/src/main/kotlin/com/example/chatapp/uicomponents/ChatScreen.kt

@@ -269,14 +269,16 @@ fun MessageBubble(
                     }
                 }
                 if (message.content.isNotEmpty()) {
-                    val linkColor = if (message.isInbound) {
-                        MaterialTheme.colorScheme.primary
-                    } else {
-                        MaterialTheme.colorScheme.inversePrimary
-                    }
-                    val annotatedText = remember(message.content, linkColor) {
-                        linkifyString(message.content, linkColor = linkColor)
-                    }
+                    val linkColor =
+                        if (message.isInbound) {
+                            MaterialTheme.colorScheme.primary
+                        } else {
+                            MaterialTheme.colorScheme.inversePrimary
+                        }
+                    val annotatedText =
+                        remember(message.content, linkColor) {
+                            linkifyString(message.content, linkColor = linkColor)
+                        }
                     Text(
                         modifier = Modifier.padding(16.dp),
                         text = annotatedText,

ChatApp/shared/build.gradle.kts

@@ -48,5 +48,4 @@ dependencies {
     // App functions
     implementation(libs.androidx.appfunctions)
     ksp(libs.androidx.appfunctions.compiler)
-
 }

ChatApp/shared/src/main/kotlin/com/example/chatapp/BaseChatApplication.kt

@@ -16,4 +16,5 @@
 package com.example.chatapp
 
 import android.app.Application
+
 abstract class BaseChatApplication : Application()

ChatApp/shared/src/main/kotlin/com/example/chatapp/appfunctions/BaseChatAppFunctionService.kt

@@ -19,19 +19,19 @@ import android.app.PendingIntent
 import android.content.Intent
 import android.net.Uri
 import androidx.annotation.RequiresApi
+import androidx.appfunctions.AppFunction
 import androidx.appfunctions.AppFunctionAppUnknownException
 import androidx.appfunctions.AppFunctionElementNotFoundException
 import androidx.appfunctions.AppFunctionInvalidArgumentException
 import androidx.appfunctions.AppFunctionService
 import androidx.appfunctions.AppFunctionServiceEntryPoint
 import androidx.appfunctions.AppFunctionStringValueConstraint
-import androidx.appfunctions.AppFunction
 import com.example.chatapp.data.CallManager
 import com.example.chatapp.data.MessageRepository
 import com.example.chatapp.data.RecipientsRepository
 import dagger.hilt.android.AndroidEntryPoint
-import javax.inject.Inject
 import kotlinx.coroutines.CancellationException
+import javax.inject.Inject
 
 /**
  * Service entry point for chat-related AppFunctions such as searching contacts, sending messages, and making calls.
@@ -44,7 +44,9 @@ import kotlinx.coroutines.CancellationException
 )
 abstract class BaseChatAppFunctionService : AppFunctionService() {
     @Inject lateinit var messageRepository: MessageRepository
+
     @Inject lateinit var recipientsRepository: RecipientsRepository
+
     @Inject lateinit var callManager: CallManager
 
     /**
@@ -153,9 +155,7 @@ abstract class BaseChatAppFunctionService : AppFunctionService() {
      * @throws AppFunctionElementNotFoundException If no recipient exists for endpointValue. If thrown, call "searchContacts" to find the correct ID.
      */
     @AppFunction(isDescribedByKDoc = true)
-    suspend fun makeCall(
-        endpointValue: String,
-    ): PendingIntent {
+    suspend fun makeCall(endpointValue: String): PendingIntent {
         val recipient =
             recipientsRepository.getRecipientById(endpointValue)
                 ?: throw AppFunctionElementNotFoundException(

ChatApp/shared/src/main/kotlin/com/example/chatapp/appfunctions/Util.kt

@@ -13,12 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 package com.example.chatapp.appfunctions
 
 import androidx.appfunctions.AppFunctionSerializable
 
-
 /**
  * Represents a result from a contact or group search.
  */
@@ -67,4 +65,4 @@ data class ChatGroup(
     val name: String,
     /** List of members belonging to the group. */
     val recipients: List<Recipient>,
-)
+)

ChatApp/shared/src/main/kotlin/com/example/chatapp/util/Linkify.kt

@@ -24,7 +24,10 @@ import androidx.compose.ui.text.TextLinkStyles
 import androidx.compose.ui.text.buildAnnotatedString
 import androidx.compose.ui.text.style.TextDecoration
 
-fun linkifyString(text: String, linkColor: Color? = null): AnnotatedString {
+fun linkifyString(
+    text: String,
+    linkColor: Color? = null,
+): AnnotatedString {
     val matcher = Patterns.WEB_URL.matcher(text)
     var lastIndex = 0
     return buildAnnotatedString {
@@ -35,22 +38,24 @@ fun linkifyString(text: String, linkColor: Color? = null): AnnotatedString {
 
             append(text.substring(lastIndex, start))
 
-            val uriStr = if (url.startsWith("http://", ignoreCase = true) || url.startsWith("https://", ignoreCase = true)) {
-                url
-            } else {
-                "https://$url"
-            }
-
-            val linkStyle = SpanStyle(
-                color = linkColor ?: Color.Unspecified,
-                textDecoration = TextDecoration.Underline
-            )
+            val uriStr =
+                if (url.startsWith("http://", ignoreCase = true) || url.startsWith("https://", ignoreCase = true)) {
+                    url
+                } else {
+                    "https://$url"
+                }
+
+            val linkStyle =
+                SpanStyle(
+                    color = linkColor ?: Color.Unspecified,
+                    textDecoration = TextDecoration.Underline,
+                )
 
             pushLink(
                 LinkAnnotation.Url(
                     url = uriStr,
-                    styles = TextLinkStyles(style = linkStyle)
-                )
+                    styles = TextLinkStyles(style = linkStyle),
+                ),
             )
             append(url)
             pop()

ChatApp/wear/build.gradle.kts

@@ -67,7 +67,6 @@ dependencies {
     // App functions
     implementation(libs.androidx.appfunctions)
     ksp(libs.androidx.appfunctions.compiler)
-
 }
 
 // AppFunctions ksp option

ChatApp/wear/src/main/kotlin/com/example/chatapp/wear/uicomponents/WearChatScreen.kt

@@ -70,9 +70,10 @@ fun WearChatScreen(
                 title = { Text(text = if (message.isInbound) message.senderName ?: "Sender" else "Me") },
             ) {
                 val linkColor = MaterialTheme.colorScheme.primary
-                val annotatedText = remember(message.content, linkColor) {
-                    linkifyString(text = message.content, linkColor = linkColor)
-                }
+                val annotatedText =
+                    remember(message.content, linkColor) {
+                        linkifyString(text = message.content, linkColor = linkColor)
+                    }
                 Text(text = annotatedText)
             }
         }

agent/app/build.gradle.kts

@@ -16,6 +16,7 @@
 plugins {
     alias(libs.plugins.android.application)
     alias(libs.plugins.kotlin.compose)
+    alias(libs.plugins.kotlin.serialization)
     alias(libs.plugins.ksp)
     alias(libs.plugins.hilt)
     alias(libs.plugins.screenshot)
@@ -60,7 +61,10 @@ android {
             dimension = "mode"
             buildConfigField("Boolean", "IS_RETAIL", "true")
 
-            val containsRetail = gradle.startParameter.taskNames.any { it.contains("Retail", ignoreCase = true) }
+            val containsRetail =
+                gradle.startParameter.taskNames.any {
+                    it.contains("Retail", ignoreCase = true)
+                }
             val apiKey = project.findProperty("GEMINI_API_KEY") as? String ?: ""
             if (containsRetail && apiKey.isEmpty()) {
                 throw GradleException(

agent/app/src/main/AndroidManifest.xml

@@ -59,6 +59,16 @@
             android:exported="false"
             tools:replace="android:label,android:theme" />
 
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="${applicationId}.fileprovider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/file_paths" />
+        </provider>
+
         <service
             android:name="com.example.appfunctions.agent.data.BuiltInAppFunctionService"
             android:permission="android.permission.BIND_APP_FUNCTION_SERVICE"