Add link of source code in app

app/src/main/java/com/google/samples/apps/nowinandroid/ui/NiaApp.kt

@@ -16,6 +16,9 @@
 
 package com.google.samples.apps.nowinandroid.ui
 
+import android.content.Intent
+import android.net.Uri
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.ExperimentalLayoutApi
 import androidx.compose.foundation.layout.Row
@@ -45,11 +48,13 @@ import androidx.compose.runtime.remember
 import androidx.compose.ui.ExperimentalComposeUiApi
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.testTag
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.semantics.semantics
 import androidx.compose.ui.semantics.testTagsAsResourceId
+import androidx.core.content.ContextCompat
 import androidx.lifecycle.compose.ExperimentalLifecycleComposeApi
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.navigation.NavDestination
@@ -68,10 +73,10 @@ import com.google.samples.apps.nowinandroid.core.designsystem.icon.Icon.ImageVec
 import com.google.samples.apps.nowinandroid.core.designsystem.icon.NiaIcons
 import com.google.samples.apps.nowinandroid.core.designsystem.theme.GradientColors
 import com.google.samples.apps.nowinandroid.core.designsystem.theme.LocalGradientColors
-import com.google.samples.apps.nowinandroid.feature.settings.R as settingsR
 import com.google.samples.apps.nowinandroid.feature.settings.SettingsDialog
 import com.google.samples.apps.nowinandroid.navigation.NiaNavHost
 import com.google.samples.apps.nowinandroid.navigation.TopLevelDestination
+import com.google.samples.apps.nowinandroid.feature.settings.R as settingsR
 
 @OptIn(
     ExperimentalMaterial3Api::class,
@@ -90,6 +95,7 @@ fun NiaApp(
 ) {
     val shouldShowGradientBackground =
         appState.currentTopLevelDestination == TopLevelDestination.FOR_YOU
+    val context = LocalContext.current
 
     NiaBackground {
         NiaGradientBackground(
@@ -165,6 +171,10 @@ fun NiaApp(
                         if (destination != null) {
                             NiaTopAppBar(
                                 titleRes = destination.titleTextId,
+                                navigationIcon = NiaIcons.Codebase,
+                                navigationIconContentDescription = stringResource(
+                                    id = settingsR.string.top_app_bar_navigation_icon_description
+                                ),
                                 actionIcon = NiaIcons.Settings,
                                 actionIconContentDescription = stringResource(
                                     id = settingsR.string.top_app_bar_action_icon_description
@@ -172,7 +182,12 @@ fun NiaApp(
                                 colors = TopAppBarDefaults.centerAlignedTopAppBarColors(
                                     containerColor = Color.Transparent
                                 ),
-                                onActionClick = { appState.setShowSettingsDialog(true) }
+                                onNavigationClick = {
+                                    val launchResourceIntent = Intent(Intent.ACTION_VIEW, Uri.parse(
+                                        CODEBASE_URL))
+                                    ContextCompat.startActivity(context, launchResourceIntent, null)
+                                },
+                                onActionClick = { appState.setShowSettingsDialog(true) },
                             )
                         }
 
@@ -269,3 +284,5 @@ private fun NavDestination?.isTopLevelDestinationInHierarchy(destination: TopLev
     this?.hierarchy?.any {
         it.route?.contains(destination.name, true) ?: false
     } ?: false
+
+private const val CODEBASE_URL = "https://github.com/android/nowinandroid"

core/designsystem/src/main/java/com/google/samples/apps/nowinandroid/core/designsystem/icon/NiaIcons.kt

@@ -26,6 +26,7 @@ import androidx.compose.material.icons.rounded.Add
 import androidx.compose.material.icons.rounded.ArrowBack
 import androidx.compose.material.icons.rounded.Check
 import androidx.compose.material.icons.rounded.Close
+import androidx.compose.material.icons.rounded.Code
 import androidx.compose.material.icons.rounded.ExpandLess
 import androidx.compose.material.icons.rounded.Fullscreen
 import androidx.compose.material.icons.rounded.Grid3x3
@@ -65,6 +66,7 @@ object NiaIcons {
     val Person = Icons.Rounded.Person
     val PlayArrow = Icons.Rounded.PlayArrow
     val Search = Icons.Rounded.Search
+    val Codebase = Icons.Rounded.Code
     val Settings = Icons.Rounded.Settings
     val ShortText = Icons.Rounded.ShortText
     val Tag = Icons.Rounded.Tag

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

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
      Copyright 2022 The Android Open Source Project
 
      Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,6 +15,7 @@
 -->
 <resources>
     <string name="top_app_bar_action_icon_description">Settings</string>
+    <string name="top_app_bar_navigation_icon_description">Codebase</string>
     <string name="settings_title">Settings</string>
     <string name="loading">Loading...</string>
     <string name="privacy_policy">Privacy policy</string>