java,dart

Push Notification for Android

Settings for Push Notification

See Settings for FCM (Android) to setup.

Add Firebase SDK

Copy google-services.json which you have downloaded from Settings for FCM (Android) to the app directory, and add the lines below to the project level build.gradle file.

buildscript {
    ...
    dependencies {
        ...
        classpath 'com.google.gms:google-services:4.3.4'
    }
}

allprojects {
    ...
    repositories {
        ...
        google()
    }
}

Add the following to your application's build.gradle.

dependencies {
    implementation 'com.google.firebase:firebase-messaging:20.3.0'
}

apply plugin: 'com.google.gms.google-services'

// This part does not need to be implemented in a Flutter app.

Warning

Please specify version 17.1.0 or above for firebase-messaging. Repro SDK cannot retrieve Registration ID with versions below 17.1.0.

Note

'implementation' is not available for versions below Gradle 3.4. Please use 'compile' instead.

Edit AndroidManifest.xml

Register receiver

Replace "YOUR_PACKAGE_NAME" with your application's package name in the following snippet, and add it to your AndroidManifest.xml inside of <application> tag.

<receiver
    android:name="io.repro.android.ReproReceiver"
    android:exported="true"
    android:permission="com.google.android.c2dm.permission.SEND">
    <intent-filter>
        <action android:name="com.google.android.c2dm.intent.RECEIVE" />
        <category android:name="YOUR_PACKAGE_NAME" />
    </intent-filter>
</receiver>

Setup Notification Channels

Since Android O, Notification Channels were introduced to help users manage their notifications.

To set the notification channels in Repro SDK, please specify the following: ID, channel name, description for users, and with or without badge display.Replace the value, resource within the XML below with the desired value, and add the <application> tag into the AndroidManifest.xml.

Warning

• If the targetSDKVersion of your application is greater than or equal to 26, please note that channel id and name are required or the SDK won't show notifications sent from Repro while running on devices with Android O or later.

• The ChannelId must be a string, like test ID, instead of an integer or decimal. If you specify a value other than a string, channel IDs will not work and push notifications won't be displayed.

• The ChannelName and ChannelDescription must be configured using the android:resource attribute.

<meta-data
    android:name="io.repro.android.PushNotification.ChannelId"
    android:value="YOUR_CHANNEL_ID">
</meta-data>

<meta-data
    android:name="io.repro.android.PushNotification.ChannelName"
    android:resource="@string/YOUR_CHANNEL_NAME">
</meta-data>

<meta-data
    android:name="io.repro.android.PushNotification.ChannelDescription"
    android:resource="@string/YOUR_CHANNEL_DESCRIPTION">
</meta-data>

<meta-data
    android:name="io.repro.android.PushNotification.ShowBadge"
    android:value="true">
</meta-data>

If the channel of the specified id does not exist, it will be created automatically by the SDK based on the information provided in AndroidManifest.xml. If there is an existing channel with the specified id, the SDK will use it.

The SDK will update the channel name and description and channel importance of the existing channel being used by the SDK.

The SDK will ignore the settings above when the targetSDKVersion of your application is 25 or below, or when the application is running on devices with versions earlier than Android O.

Note

Notification Channels were introduced as a standard feature in Android O. For the details, please refer to this page.

Customize Icon and Background Color

When customizing the icon and the background color displayed in the notification area for devices with Android 5.0 or above, add the XML construct below inside of the <application> tag in your AndroidManifest.xml. This setting will be ignored with devices under Android 5.0, and the notification area will use the application's icon as well as the system's default background color.

<meta-data
    android:name="io.repro.android.PushNotification.SmallIcon"
    android:resource="@drawable/YOUR_ICON_ID">
</meta-data>

<meta-data
    android:name="io.repro.android.PushNotification.AccentColor"
    android:resource="@color/YOUR_COLOR_ID">
</meta-data>

Send Registration ID to Repro

Warning

Starting from targetSdk 33 (Android 13) and above, receiving push notifications needs individual consent for each app.

An Implementation of a custom push notification consent dialog is required, which consists of:

• Addition of the push notification permission (POST_NOTIFICATIONS) to the AndroidManifest.xml file

• Implementation of a custom dialog for requesting the push notification permission

If these steps are not completed, changes as shown above have to be implemented.

The particular moment when to present the dialog is free for you to choose.

Right after calling setup(), call enablePushNotification() .

 import io.repro.android.Repro;

 public class MyApplication extends Application {

     @Override
     public void onCreate() {
         super.onCreate();

         ...

         Repro.setup(this, "YOUR_APP_TOKEN");
         Repro.enablePushNotification();

         ...
     }
 }

// This section should be implemented in Java, even for Flutter applications.

Call Repro.setPushRegistrationID in the method onNewToken inherited from FirebaseMessagingService.

 import io.repro.android.Repro;

 public class MyFirebaseMessagingService extends FirebaseMessagingService {
     ...
     @Override
     public void onNewToken(String token) {
         Repro.setPushRegistrationID(token);
     }
     ...
 }

// main.dart
FirebaseMessaging messaging = FirebaseMessaging.instance;
messaging.onTokenRefresh.listen((token) async {
    await Repro.setPushRegistrationID(token);
});

Add the following snippet to your AndroidManifest.xml inside of <application> tag.

<service
    android:name=".MyFirebaseMessagingService">
    <intent-filter>
        <action android:name="com.google.firebase.MESSAGING_EVENT" />
    </intent-filter>
</service>

// This part does not need to be implemented in a Flutter app.

Note

Adding multiple FirebaseMessagingService to AndroidManifest.xml will result in only one of the FirebaseMessagingServices actually working.

Therefore, if you have already implemented a class inheriting FirebaseMessagingService, please call Repro.setPushRegistrationID in the onNewToken of the existing class, rather than creating a new class inheriting FirebaseMessagingService.

After finishing the above implementation, see Create Push Notification.

Option: customize the behavior when receiving messages

If you want to customize the behavior when receiving push notifications, please implement the onMessageReceived method of FirebaseMessagingService.

Implement onMessageReceived of FirebaseMessagingService

Override onMessageReceived and call the following three methods.

• Call Repro.applicationShouldHandlePushNotification and decide whether to use the received message in the application or not. If this method returns false, the message will be processed by the SDK.

• Call Repro.isAlreadyReceivedPushNotification and detect the message has already been received or not. The device may receive duplicated messages if the application is being uninstalled and re-installed repeatedly.

• Call Repro.markPushNotificationReceived and mark the message received.

Note

ReproReceiver is required to receive standard format messages. Do not delete ReproReceiver.

@Override
public void onMessageReceived(RemoteMessage message) {
    Map<String, String> data = message.getData();

    // check whether the application should handle this push notification.
    if (!Repro.applicationShouldHandlePushNotification(this, data)) {
        Log.d(TAG, "Ignore push notification: it will be handled by SDK: " + data.toString());
        return;
    }

    // check whether this push notification is already received.
    if (Repro.isAlreadyReceivedPushNotification(this, data)) {
        Log.d(TAG, "Ignore push notification: it is already received: " + data.toString());
        return;
    }

    // mark this push notification as "received".
    Log.d(TAG, "Mark push notification as received: " + data.toString());
    Repro.markPushNotificationReceived(this, data);

    // Implement procedures unique to the application here
    ...
}

// main.dart
FirebaseMessaging.onMessage.listen((RemoteMessage message) async {

    // check whether the application should handle this push notification.
    final shouldHandle = await Repro.applicationShouldHandlePushNotification(message.data);
    if (!shouldHandle) {
        debugPrint("Ignore push notification: it will be handled by SDK: ${message.data.toString()}");
        return;
    }

    // check whether this push notification is already received.
    final isReceived = await Repro.isAlreadyReceivedPushNotification(message.data);
    if (isReceived) {
        debugPrint("Ignore push notification: it is already received: ${message.data.toString()}");
        return;
    }

    // mark this push notification as "received".
    debugPrint("Mark push notification as received: ${message.data.toString()}");
    await Repro.markPushNotificationReceived(message.data);

    // Implement procedures unique to the application here
    ...
});

Track notification as opened

Standard format message opening will be tracked automatically by the Repro SDK. For JSON formatted messages, you will need to call Repro.trackNotificationOpened to track message opens.

The below is a sample of creating notification that launches Activity from the JSON format message, and call Repro.trackNotificationOpened within the called Activity.

public class MyFirebaseMessagingService extends FirebaseMessagingService {
    private static final String TAG = "MessagingService";
    private static final String CHANNEL_ID = "custom-firebase-messaging-service-channel";

    private final Random mRandom = new Random();

    @Override
    public void onNewToken(String token) {
        Repro.setPushRegistrationID(token);
    }

    @Override
    public void onMessageReceived(RemoteMessage message) {
        final int identifier = mRandom.nextInt();
        Map<String, String> data = message.getData();

        // check whether the application should handle this push notification.
        if (!Repro.applicationShouldHandlePushNotification(this, data)) {
            Log.d(TAG, "Ignore push notification: it will be handled by SDK: " + data.toString());
            return;
        }

        // check whether this push notification is already received.
        if (Repro.isAlreadyReceivedPushNotification(this, data)) {
            Log.d(TAG, "Ignore push notification: it is already received: " + data.toString());
            return;
        }

        // mark this push notification as "received".
        Log.d(TAG, "Mark push notification as received: " + data.toString());
        Repro.markPushNotificationReceived(this, data);

        String messageText;
        if (data.containsKey("message")) {
            messageText = data.get("message");
        } else {
            messageText = "default message";
        }

        final Notification.Builder builder = new Notification.Builder(this)
                .setContentTitle(this.getResources().getString(R.string.app_name))
                .setContentText(messageText)
                .setSmallIcon(R.mipmap.ic_launcher_round)
                .setAutoCancel(true);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            createOrUpdateChannel();
            builder.setChannelId(CHANNEL_ID);
        }

        Intent resultIntent = new Intent(this, SomeActivity.class);

        String notificationIdKey = data.get(io.repro.android.ReproReceiver.NOTIFICATION_ID_KEY);
        if (notificationIdKey != null) {
            resultIntent.putExtra(io.repro.android.ReproReceiver.NOTIFICATION_ID_KEY, notificationIdKey);
        }

        PendingIntent resultPendingIntent = PendingIntent.getActivity(this, identifier, resultIntent, PendingIntent.FLAG_CANCEL_CURRENT);
        builder.setContentIntent(resultPendingIntent);

        final NotificationManager notificationManager = (NotificationManager)this.getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.notify(identifier, builder.getNotification());
    }

    @TargetApi(Build.VERSION_CODES.O)
    private void createOrUpdateChannel() {
        NotificationChannel newChannel = new NotificationChannel(CHANNEL_ID, "Custom Channel", NotificationManager.IMPORTANCE_DEFAULT);
        newChannel.setDescription("");
        newChannel.setShowBadge(true);

        // create or update the Notification channel
        final NotificationManager notificationManager = (NotificationManager)this.getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.createNotificationChannel(newChannel);
    }
}

// This is a sample that tracks the opening of a message in JSON format.
// For more detailed implementations, see the sample code for the Java version.

// main.dart
FirebaseMessaging.onMessage.listen((RemoteMessage message) async {
    // mark this push notification as "received".
    debugPrint("Mark push notification as received: ${message.data.toString()});
    await Repro.markPushNotificationReceived(message.data);
    ...
});

Within the launched Activity, set the push notification ID from the Extras of the previous resultIntent to Repro.trackNotificationOpened. If the launch mode of the activity is singleTop, set the push notification the same way with onNewIntent.

public class SomeActivity extends Activity {

  @Override
  protected void onResume() {
      super.onResume();

      Intent intent = getIntent();
      Bundle extras = intent.getExtras();
      if (extras != null && extras.containsKey(io.repro.android.ReproReceiver.NOTIFICATION_ID_KEY)) {
          Repro.trackNotificationOpened(extras.getString(io.repro.android.ReproReceiver.NOTIFICATION_ID_KEY));
      }
  }

  @Override
  protected void onNewIntent(Intent intent) {
      super.onNewIntent(intent);

      Bundle extras = intent.getExtras();
      if (extras != null && extras.containsKey(io.repro.android.ReproReceiver.NOTIFICATION_ID_KEY)) {
          Repro.trackNotificationOpened(extras.getString(io.repro.android.ReproReceiver.NOTIFICATION_ID_KEY));
      }

      this.setIntent(intent);
  }

// There is no sample code for Flutter in this section.

Note

• The push notification ID can be retrieved from the Bundle of the received message with the io.repro.android.ReproReceiver.NOTIFICATION_ID_KEY key.

How to prevent specific activities from starting a Repro session

For example activities launched by push notifications are a good example for a cases where preventing certain activities to start a Repro session with the server backend could be advantageous. In such cases, you should set the flag ___repro_prevent_session_start___: true in the Extras of the Intent used to launch the activity.

public class MyFirebaseMessagingService extends FirebaseMessagingService {

    ...

    @Override
    public void onMessageReceived(RemoteMessage message) {
        ...

        // The existing code
        Intent intent = new Intent(myContext, ActivityStartedByPushNotification.class)

        // Add this code here
        intent.putExtra("___repro_prevent_session_start___", true);

        // The existing code
        startActivity(intent);
    }
}

// This implementation is not possible in the Dart language.

By setting this flag, you can prevent the start of a session with the Repro server at startup. When transitioning from a launched activity to another, the session will be started unless the flag is set again.

Warning

To apply this setting, you need to install Android SDK 5.6.1 or higher for your application.

Option: Using App-Links

It is possible to custom handle the opening of Universal-Links (also called App-Links) when Push Notifications or In-App Messages are tabbed. (For simplification from now only called Universal-Links.)

Please follow the examples below in order to add a custom Universal-Link callback handler which is executed every time an Universal-Link would be opened from a Push-Notification or In-App Message.

How to register a regular expression to match Universal-Links.

In order to use Universal-Link callbacks, a regular expression based url matcher must be added.

Note

When a pattern (regular expression) is matched, the callback process described below is kicked to the URL set as the destination for opening a push notification or a message in the application.

When HTML content is displayed in in-app messages, universal linking is also determined for requests that occur within that content.

For iOS apps, these matcher regular expressions can be added in the AppDelegate or in the Apps designated .plist file. For Android apps your class that extents Application can be used or if that is not possible, the regular expressions can also be added to your AndroidManifest.xml file.

// AppDelegate.m

#import <Repro/Repro.h>

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    [Repro addOpenUrlFilterRegEx:@"https://example\\.com/page/"];
    [Repro addOpenUrlFilterRegEx:@"your-domain\\.com/.+\?universal=true"];
    ...
}


// .plist file
/*
<dict>
    <key>RPROpenUrlFilterRegExList</key>
    <array>
        <string>https://example\.com/page/</string>
        <string>your-domain\.com/.+\?universal=true</string>
    </array>
    ...
</dict>
*/

// MyApplication.java

import io.repro.android.Repro;

public class MyApplication extends Application {
    @Override
    public void onCreate() {
        super.onCreate();
        Repro.addOpenUrlFilterRegEx("https://example\\.com/page/");
        Repro.addOpenUrlFilterRegEx("your-domain\\.com/.+\\?universal=true");
        ...
    }
...
}


// AndroidManifest.xml
// To specify multiple URL patterns, enter them separated by commas.
<application>
    ...
    <meta-data
        android:name="io.repro.android.OpenUrlFilterRegExList"
        android:value="https://example\\.com/page/;your-domain\\.com/.+\\?universal=true">
    </meta-data>
</application>

// AppDelegate.swift

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool
{
    Repro.add(openUrlFilterRegEx: "https://example\\.com/page/")
    Repro.add(openUrlFilterRegEx: "your-domain\\.com/.+\\?universal=true")
    ...
}

// .plist file
/*
<dict>
    <key>RPROpenUrlFilterRegExList</key>
    <array>
        <string>https://example\.com/page/</string>
        <string>your-domain\.com/.+\?universal=true</string>
    </array>
    ...
</dict>
*/

Please follow native iOS and Android instructions in order to add the filters
to the plist/AndroidManifest files or the main AppDelegate/Application classes.

Please follow native iOS and Android instructions in order to add the filters
to the plist/AndroidManifest files or the main AppDelegate/Application classes.

// YourAppNameScene.cpp

bool YourAppName::init() {
    ReproCpp::addOpenUrlFilterRegEx("https://example\\.com/page/");
    ReproCpp::addOpenUrlFilterRegEx("your-domain\\.com/.+\\?universal=true");
    ...
}

Please follow native iOS and Android instructions in order to add the filters
to the plist/AndroidManifest files or the main AppDelegate/Application classes.

Please follow native iOS and Android instructions in order to add the filters
to the plist/AndroidManifest files or the main AppDelegate/Application classes.

Warning

Specify the URL pattern to be set as a universal link as concretely as possible, including the domain and path , and should be all in lowercase .

If only a scheme is specified, such as https, a request made by a script executed in a screen displayed by an in-app message may be mistakenly judged as a universal link, and callback processing may be executed at an unintended timing.

If uppercase letters are used in the scheme/domain portion of the URL pattern, the scheme/domain portion is automatically converted to lowercase and processed when attempting to use a universal link to transition from a button displayed in an HTML in-app message. The pattern (regular expression) may not match and callback processing may not be executed at the intended timing.

Adding a callback handler for opening Universal-Links

Next a callback handler for custom processing of Universal-Links is added. The URL that was about to be opened is passed to the callback, where then depending on the URL custom code can be executed.

#import <Repro/Repro.h>

...

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    [Repro setOpenUrlCallback:^(NSURL *url) {
        if ([url.host isEqualToString:@"example.com"]) {
            // In case of your universal link perform navigation, present content, ...
            handleUniversalLink(url);
        }
    }];

    ...
    [Repro setup:@"YOUR_APP_TOKEN"];
    ...
}

// Set a callback that is executed everytime an URL is about to be opened
Repro.setOpenUrlCallback { url in
    if url.host == "example.com" {
        // In case of your universal link perform navigation, present content, ...
        handleUniversalLink(url)
    }
}
...
Repro.setup(token: "YOUR_APP_TOKEN")
...

import io.repro.android.Repro;

public class MyApplication extends Application {

    @Override
    public void onCreate() {
        super.onCreate();

        // In order to execute a callback when a push notification is tapped,
        // the callback must be set in Application, not Activity.
        Repro.setOpenUrlCallback(new Repro.OpenUrlCallback() {
            // ** This callback method is executed in the main thread **
            @Override
            public void onOpened(Uri uri) {
                if ("example.com".equals(uri.getHost())) {
                    // In case of your universal link perform navigation, present content, ...
                }
            }
        });

        ...
        Repro.setup(this, YOUR_APP_TOKEN);
        ...
    }
    ...
}

Repro.setOpenUrlCallback((uri) { // uri is of type Uri
   debugPrint("Universal Link Callback Handler received: " + uri.toString());
});

// Somewhere before Repro.Setup(...)
Repro.SetOpenUrlCallback(uri => // uri is of type Uri
{
    Debug.Log("Universal Link Callback Handler received: " + uri.ToString());
});

bool YourAppName::init() {
    ReproCpp::addOpenUrlFilterRegEx(...);

    ReproCpp::setOpenUrlCallback([](const char *url) {
        if (strcmp(url, "example.com") == 0) {
            // In case of your universal link perform navigation, present content, ...
        }
    });

    ReproCpp::setup("YOUR_APP_TOKEN")
    ...
}

Repro.setOpenUrlCallback(function(url) { // url is of type String
    alert('Universal Link Callback Handler received: ' + url);
    if (url.includes("http://example.org")) {
        // In case of your universal link perform navigation, present content, ...
    }
});

Repro.setOpenUrlCallback( (url) => {  // url is of type String
    console.log('Universal Link Callback Handler received: ' + url);
    if (url.includes("http://example.org")) {
        // In case of your universal link perform navigation, present content, ...
    }
});

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