Add open-source notices

AndroidManifest-common.xml

@@ -194,5 +194,13 @@
                 <category android:name="android.intent.category.DEFAULT" />
             </intent-filter>
         </activity>
+
+        <activity
+            android:name="com.google.android.gms.oss.licenses.OssLicensesMenuActivity"
+            android:theme="@style/Theme.AppCompat.DayNight" />
+
+        <activity
+            android:name="com.google.android.gms.oss.licenses.OssLicensesActivity"
+            android:theme="@style/Theme.AppCompat.DayNight" />
     </application>
 </manifest>

build.gradle

@@ -12,6 +12,7 @@ buildscript {
         classpath 'com.android.tools.build:gradle:7.0.0-alpha10'
         classpath PROTOBUF_CLASS_PATH
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath 'com.google.android.gms:oss-licenses-plugin:0.10.2'
     }
 }
 
@@ -45,6 +46,7 @@ allprojects {
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 apply plugin: 'com.google.protobuf'
+apply plugin: 'com.google.android.gms.oss-licenses-plugin'
 
 final def commitHash = { ->
     final def stdout = new ByteArrayOutputStream()
@@ -228,6 +230,7 @@ allprojects {
 }
 
 dependencies {
+    implementation 'com.google.android.gms:play-services-oss-licenses:17.0.0'
     implementation "androidx.dynamicanimation:dynamicanimation:${ANDROID_X_VERSION}"
     implementation "androidx.recyclerview:recyclerview:${ANDROID_X_VERSION}"
     implementation "androidx.preference:preference-ktx:${ANDROID_X_VERSION}"

lawnchair/res/values/strings.xml

@@ -44,7 +44,7 @@
     <string name="twitter" translatable="false">Twitter</string>
     <string name="github" translatable="false">GitHub</string>
     <string name="team_members">Team Members</string>
-    <string name="os_licenses">Open-Source Licenses</string>
+    <string name="acknowledgements">Acknowledgements</string>
     <string name="patryk_description">To be determined.</string>
     <string name="kshitij_description">To be determined.</string>
     <string name="devops_engineer">DevOps Engineer</string>

lawnchair/src/app/lawnchair/ui/preferences/About.kt

@@ -1,5 +1,6 @@
 package app.lawnchair.ui.preferences
 
+import android.content.Intent
 import androidx.compose.foundation.Image
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.rememberScrollState
@@ -17,9 +18,12 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import app.lawnchair.util.preferences.getFormattedVersionName
 import com.android.launcher3.R
+import com.google.android.gms.oss.licenses.OssLicensesMenuActivity
 
 @Composable
 fun About() {
+    val context = LocalContext.current
+
     Column(
         modifier = Modifier
             .fillMaxWidth()
@@ -115,5 +119,12 @@ fun About() {
                 url = "https://twitter.com/skittles9823"
             )
         }
+        PreferenceGroup(useTopPadding = true) {
+            ClickListenerPreference(label = stringResource(id = R.string.acknowledgements), showDivider = false, onClick = {
+                val intent = Intent(context, OssLicensesMenuActivity::class.java)
+                OssLicensesMenuActivity.setActivityTitle(context.getString(R.string.acknowledgements))
+                context.startActivity(intent)
+            })
+        }
     }
 }

lawnchair/src/app/lawnchair/ui/preferences/ClickListenerPreference.kt

@@ -0,0 +1,39 @@
+package app.lawnchair.ui.preferences
+
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.ContentAlpha
+import androidx.compose.material.LocalContentAlpha
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.CompositionLocalProvider
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import androidx.navigation.NavController
+import androidx.navigation.compose.navigate
+
+@Composable
+fun ClickListenerPreference(
+    label: String,
+    subtitle: String? = null,
+    onClick: () -> Unit,
+    showDivider: Boolean = true
+) =
+    PreferenceTemplate(height = if (subtitle != null) 72.dp else 52.dp, showDivider = showDivider) {
+        Column(
+            verticalArrangement = Arrangement.Center,
+            modifier = Modifier
+                .fillMaxWidth()
+                .fillMaxHeight()
+                .clickable(onClick = onClick)
+                .padding(start = 16.dp, end = 16.dp),
+        ) {
+            Text(text = label, style = MaterialTheme.typography.subtitle1, color = MaterialTheme.colors.onBackground)
+            subtitle?.let {
+                CompositionLocalProvider(LocalContentAlpha provides ContentAlpha.medium) {
+                    Text(text = it, style = MaterialTheme.typography.body2, color = MaterialTheme.colors.onBackground)
+                }
+            }
+        }
+    }