Add OSS dialog to app

app/build.gradle.kts

@@ -25,6 +25,7 @@ plugins {
     alias(libs.plugins.google.services)
     alias(libs.plugins.crashlytics)
     alias(libs.plugins.baselineprofile)
+    id("com.google.android.gms.oss-licenses-plugin")
 }
 
 android {
@@ -111,6 +112,10 @@ dependencies {
     implementation(libs.firebase.appcheck.debug)
 
     implementation(libs.androidx.window)
+    implementation(libs.androidx.appcompat)
+    implementation(libs.google.oss.licenses) {
+        exclude(group = "androidx.appcompat")
+    }
 
     implementation(projects.feature.camera)
     implementation(projects.feature.creation)

app/src/main/AndroidManifest.xml

@@ -78,6 +78,15 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <!-- need to use Theme.AppCompat -->
+        <activity
+            android:name="com.google.android.gms.oss.licenses.OssLicensesMenuActivity"
+            android:theme="@style/AppCompatAndroidify" />
+
+        <!-- needs to use Theme.AppCompat -->
+        <activity
+            android:name="com.google.android.gms.oss.licenses.OssLicensesActivity"
+            android:theme="@style/AppCompatAndroidify" />
     </application>
 
 </manifest>

app/src/main/java/com/android/developers/androidify/navigation/MainNavigation.kt

@@ -17,6 +17,7 @@
 
 package com.android.developers.androidify.navigation
 
+import android.content.Intent
 import androidx.compose.animation.ContentTransform
 import androidx.compose.animation.ExperimentalSharedTransitionApi
 import androidx.compose.animation.fadeIn
@@ -29,6 +30,7 @@ import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.unit.IntOffset
 import androidx.lifecycle.viewmodel.navigation3.rememberViewModelStoreNavEntryDecorator
 import androidx.navigation3.runtime.entry
@@ -40,6 +42,8 @@ import com.android.developers.androidify.creation.CreationScreen
 import com.android.developers.androidify.home.AboutScreen
 import com.android.developers.androidify.home.HomeScreen
 import com.android.developers.androidify.theme.transitions.ColorSplashTransitionScreen
+import com.google.android.gms.oss.licenses.OssLicensesActivity
+import com.google.android.gms.oss.licenses.OssLicensesMenuActivity
 
 @ExperimentalMaterial3ExpressiveApi
 @Composable
@@ -110,10 +114,14 @@ fun MainNavigation() {
                 )
             }
             entry<About> {
+                val context = LocalContext.current
                 AboutScreen(
                     onBackPressed = {
                         backStack.removeLastOrNull()
                     },
+                    onLicensesClicked = {
+                        context.startActivity(Intent(context, OssLicensesMenuActivity::class.java))
+                    }
                 )
             }
         },

app/src/main/res/values-v35/themes.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright 2025 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          https://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<resources>
+
+    <style name="AppCompatAndroidify" parent="Theme.AppCompat.DayNight">
+        <item name="android:windowTranslucentStatus">false</item>
+        <item name="android:windowDrawsSystemBarBackgrounds">true</item>
+        <item name="android:statusBarColor">@android:color/white</item>
+        <item name="android:fitsSystemWindows">true</item>
+        <!-- https://github.com/google/play-services-plugins/issues/296 -->
+        <item name="android:windowOptOutEdgeToEdgeEnforcement">true</item>
+        <item name="android:windowLightStatusBar">true</item>
+    </style>
+</resources>

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

@@ -17,4 +17,12 @@
 <resources>
 
     <style name="Theme.Androidify" parent="android:Theme.Material.Light.NoActionBar" />
+
+    <style name="AppCompatAndroidify" parent="Theme.AppCompat.DayNight">
+        <item name="android:windowTranslucentStatus">false</item>
+        <item name="android:windowDrawsSystemBarBackgrounds">true</item>
+        <item name="android:statusBarColor">@android:color/white</item>
+        <item name="android:fitsSystemWindows">true</item>
+        <item name="android:windowLightStatusBar">true</item>
+    </style>
 </resources>

build.gradle.kts

@@ -13,7 +13,15 @@ plugins {
     alias(libs.plugins.baselineprofile) apply false
     alias(libs.plugins.spotless) apply false
 }
-
+buildscript {
+    repositories {
+        google()
+        mavenCentral()
+    }
+    dependencies {
+        classpath(libs.google.oss.licenses.plugin)
+    }
+}
 
 subprojects {
     apply(plugin = "com.diffplug.spotless")

feature/home/build.gradle.kts

@@ -59,6 +59,9 @@ dependencies {
     implementation(libs.androidx.hilt.navigation.compose)
     implementation(libs.androidx.media3.exoplayer)
     implementation(libs.androidx.media3.ui.compose)
+    implementation(libs.google.oss.licenses) {
+        exclude(group = "androidx.appcompat")
+    }
     ksp(libs.hilt.compiler)
 
     implementation(libs.ai.edge) {

feature/home/src/main/java/com/android/developers/androidify/home/AboutScreen.kt

@@ -22,6 +22,7 @@ import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.FlowRow
 import androidx.compose.foundation.layout.IntrinsicSize
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
@@ -69,22 +70,23 @@ import com.android.developers.androidify.util.isAtLeastMedium
 @Composable
 private fun AboutPreviewCompact() {
     SharedElementContextPreview {
-        AboutScreen(isMediumWindowSize = false) {}
+        AboutScreen(isMediumWindowSize = false, {}, {})
     }
 }
 
 @LargeScreensPreview
 @Composable
 private fun AboutPreviewLargeScreens() {
     SharedElementContextPreview {
-        AboutScreen(isMediumWindowSize = true) {}
+        AboutScreen(isMediumWindowSize = true, {}, {})
     }
 }
 
 @Composable
 fun AboutScreen(
     isMediumWindowSize: Boolean = isAtLeastMedium(),
     onBackPressed: () -> Unit,
+    onLicensesClicked: () -> Unit
 ) {
     val sharedElementScope = LocalSharedTransitionScope.current
     val navScope = LocalNavAnimatedContentScope.current
@@ -163,7 +165,8 @@ fun AboutScreen(
                             )
                         }
                         Spacer(Modifier.size(48.dp))
-                        FooterButtons(modifier = Modifier.padding(bottom = 8.dp))
+                        FooterButtons(modifier = Modifier.padding(bottom = 8.dp),
+                            onLicensesClicked)
                     }
                 }
             } else {
@@ -197,30 +200,36 @@ fun AboutScreen(
                         stringResource(R.string.about_step3_label),
                     )
                     Spacer(modifier = Modifier.size(24.dp))
-                    FooterButtons(modifier = Modifier.padding(bottom = 8.dp))
+                    FooterButtons(modifier = Modifier.padding(bottom = 8.dp), onLicensesClicked)
                 }
             }
         }
     }
 }
 
 @Composable
-private fun FooterButtons(modifier: Modifier = Modifier) {
+private fun FooterButtons(modifier: Modifier = Modifier,
+                          onLicensesClicked: () -> Unit) {
     val uriHandler = LocalUriHandler.current
-    Row(modifier) {
+    FlowRow(modifier, horizontalArrangement = Arrangement.spacedBy(16.dp)) {
         SecondaryOutlinedButton(
             onClick = {
                 uriHandler.openUri("https://policies.google.com/terms")
             },
             buttonText = stringResource(R.string.terms),
         )
-        Spacer(modifier = Modifier.size(16.dp))
         SecondaryOutlinedButton(
             onClick = {
                 uriHandler.openUri("https://policies.google.com/privacy")
             },
             buttonText = stringResource(R.string.privacy),
         )
+        SecondaryOutlinedButton(
+            onClick = {
+                onLicensesClicked()
+            },
+            buttonText = stringResource(R.string.oss_license),
+        )
     }
 }
 

feature/home/src/main/res/values/strings.xml

@@ -36,4 +36,5 @@
     <string name="pause">Pause</string>
     <string name="terms">Terms</string>
     <string name="privacy">Privacy</string>
+    <string name="oss_license">Licenses</string>
 </resources>

gradle/libs.versions.toml

@@ -28,6 +28,8 @@ espressoCore = "3.6.1"
 firebaseBom = "33.14.0"
 firebaseConfigKtx = "22.1.1"
 googleServices = "4.4.2"
+googleOss = "17.1.0"
+googleOssPlugin = "0.10.6"
 hiltAndroid = "2.56.2"
 hiltLifecycleViewmodel = "1.0.0-alpha03"
 hiltNavigationCompose = "1.2.0"
@@ -130,7 +132,8 @@ androidx-uiautomator = { group = "androidx.test.uiautomator", name = "uiautomato
 androidx-benchmark-macro-junit4 = { group = "androidx.benchmark", name = "benchmark-macro-junit4", version.ref = "benchmarkMacroJunit4" }
 androidx-profileinstaller = { group = "androidx.profileinstaller", name = "profileinstaller", version.ref = "profileinstaller" }
 ai-edge = { group = "com.google.ai.edge.aicore", name = "aicore", version.ref = "aiEdge" }
-
+google-oss-licenses = { group = "com.google.android.gms", name = "play-services-oss-licenses", version.ref = "googleOss" }
+google-oss-licenses-plugin = { group = "com.google.android.gms", name = "oss-licenses-plugin", version.ref = "googleOssPlugin" }
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }
 android-library = { id = "com.android.library", version.ref = "agp" }