Add remote config snippets

config/.gitignore

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+/build

config/app/build.gradle

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+plugins {
+    id 'com.android.application'
+    id 'org.jetbrains.kotlin.android'
+}
+
+android {
+    compileSdk 32
+
+    defaultConfig {
+        applicationId "com.google.firebase.quickstart.config"
+        minSdk 19
+        targetSdk 32
+        versionCode 1
+        versionName "1.0"
+        multiDexEnabled true
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+}
+
+dependencies {
+    implementation 'androidx.core:core-ktx:1.7.0'
+    implementation 'androidx.appcompat:appcompat:1.4.1'
+    implementation 'com.google.android.material:material:1.6.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
+
+    // Remote Config
+    implementation "com.google.firebase:firebase-config-ktx:21.1.0"
+
+    // For an optimal experience using Remote Config, add the Firebase SDK
+    // for Google Analytics. This is recommended, but not required.
+    implementation 'com.google.firebase:firebase-analytics-ktx:21.0.0'
+
+    testImplementation 'junit:junit:4.13.2'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+}

config/app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

config/app/src/androidTest/java/com/google/firebase/quickstart/config/ExampleInstrumentedTest.kt

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+package com.google.firebase.quickstart.config
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.assertEquals
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.google.firebase.quickstart.config", appContext.packageName)
+    }
+}

config/app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.google.firebase.quickstart.config">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.Snippetsandroid">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

config/app/src/main/java/com/google/firebase/quickstart/config/MainActivity.kt

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+package com.google.firebase.quickstart.config
+
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import android.util.Log
+import android.widget.Toast
+import com.google.firebase.ktx.Firebase
+import com.google.firebase.remoteconfig.FirebaseRemoteConfig
+import com.google.firebase.remoteconfig.ktx.get
+import com.google.firebase.remoteconfig.ktx.remoteConfig
+import com.google.firebase.remoteconfig.ktx.remoteConfigSettings
+
+class MainActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+
+        // [START get_remote_config_instance]
+        val remoteConfig: FirebaseRemoteConfig = Firebase.remoteConfig
+        // [END get_remote_config_instance]
+
+        // [START enable_dev_mode]
+        val configSettings = remoteConfigSettings {
+            minimumFetchIntervalInSeconds = 3600
+        }
+        remoteConfig.setConfigSettingsAsync(configSettings)
+        // [END enable_dev_mode]
+
+        // [START set_default_values]
+        remoteConfig.setDefaultsAsync(R.xml.remote_config_defaults)
+        // [END set_default_values]
+
+        // [START fetch_config_with_callback]
+        remoteConfig.fetchAndActivate()
+            .addOnCompleteListener(this) { task ->
+                if (task.isSuccessful) {
+                    val updated = task.result
+                    Log.d(TAG, "Config params updated: $updated")
+                    Toast.makeText(this, "Fetch and activate succeeded",
+                        Toast.LENGTH_SHORT).show()
+                } else {
+                    Toast.makeText(this, "Fetch failed",
+                        Toast.LENGTH_SHORT).show()
+                }
+                displayWelcomeMessage()
+            }
+        // [END fetch_config_with_callback]
+    }
+
+    private fun displayWelcomeMessage() {
+        val remoteConfig = Firebase.remoteConfig
+
+        // [START get_config_values]
+        val welcomeMessage = remoteConfig[WELCOME_MESSAGE_KEY].asString()
+        // [END get_config_values]
+    }
+
+    companion object {
+        private const val TAG = "MainActivity"
+
+        // Remote Config keys
+        private const val WELCOME_MESSAGE_KEY = "welcome_message"
+    }
+}

config/app/src/main/java/com/google/firebase/quickstart/config/java/MainActivity.java

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+package com.google.firebase.quickstart.config.java;
+
+import android.os.Bundle;
+import android.util.Log;
+import android.widget.Toast;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+
+import com.google.android.gms.tasks.OnCompleteListener;
+import com.google.android.gms.tasks.Task;
+import com.google.firebase.quickstart.config.R;
+import com.google.firebase.remoteconfig.FirebaseRemoteConfig;
+import com.google.firebase.remoteconfig.FirebaseRemoteConfigSettings;
+
+public class MainActivity extends AppCompatActivity {
+    private static final String TAG = "MainActivity";
+
+    // Remote Config keys
+    private static final String WELCOME_MESSAGE_KEY = "welcome_message";
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // [START get_remote_config_instance]
+        FirebaseRemoteConfig mFirebaseRemoteConfig = FirebaseRemoteConfig.getInstance();
+        // [END get_remote_config_instance]
+
+        // [START enable_dev_mode]
+        FirebaseRemoteConfigSettings configSettings = new FirebaseRemoteConfigSettings.Builder()
+                .setMinimumFetchIntervalInSeconds(3600)
+                .build();
+        mFirebaseRemoteConfig.setConfigSettingsAsync(configSettings);
+        // [END enable_dev_mode]
+
+        // [START set_default_values]
+        mFirebaseRemoteConfig.setDefaultsAsync(R.xml.remote_config_defaults);
+        // [END set_default_values]
+
+        // [START fetch_config_with_callback]
+        mFirebaseRemoteConfig.fetchAndActivate()
+                .addOnCompleteListener(this, new OnCompleteListener<Boolean>() {
+                    @Override
+                    public void onComplete(@NonNull Task<Boolean> task) {
+                        if (task.isSuccessful()) {
+                            boolean updated = task.getResult();
+                            Log.d(TAG, "Config params updated: " + updated);
+                            Toast.makeText(MainActivity.this, "Fetch and activate succeeded",
+                                    Toast.LENGTH_SHORT).show();
+
+                        } else {
+                            Toast.makeText(MainActivity.this, "Fetch failed",
+                                    Toast.LENGTH_SHORT).show();
+                        }
+                        displayWelcomeMessage();
+                    }
+                });
+        // [END fetch_config_with_callback]
+    }
+
+    private void displayWelcomeMessage() {
+        FirebaseRemoteConfig mFirebaseRemoteConfig = FirebaseRemoteConfig.getInstance();
+        // [START get_config_values]
+        String welcomeMessage = mFirebaseRemoteConfig.getString(WELCOME_MESSAGE_KEY);
+        // [END get_config_values]
+    }
+}

config/app/src/main/res/drawable-v24/ic_launcher_foreground.xml

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+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>