Display specific Activity, when Firebase notification is tapped - android-activity

Question

When user taps on a notification sent from the Firebase console, I need to launch a specific Android Activity, only when the user taps on the notification. How can this be accomplished in the following 2 scenarios:
App is not opened or app running in Background
App is in the foreground

Answer 1

You can achieve this in two ways,
1. First way
Adding click_action in notification payload,
jNotification.put("click_action", "OPEN_ACTIVITY_1");
private void pushNotification(String token) {
JSONObject jPayload = new JSONObject();
JSONObject jNotification = new JSONObject();
JSONObject jData = new JSONObject();
try {
jNotification.put("title", "Google I/O 2016");
jNotification.put("text", "Firebase Cloud Messaging (App)");
jNotification.put("sound", "default");
jNotification.put("badge", "1");
jNotification.put("click_action", "OPEN_ACTIVITY_1");
jData.put("picture_url", "http://opsbug.com/static/google-io.jpg");
jPayload.put("to", token);
//jPayload.put("to", "/topics/news");
//jPayload.put("condition", "'logined' in topics || 'news' in topics");
//jPayload.put("registration_ids", jData);
jPayload.put("priority", "high");
jPayload.put("notification", jNotification);
jPayload.put("data", jData);
URL url = new URL("https://fcm.googleapis.com/fcm/send");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("POST");
conn.setRequestProperty("Authorization", AUTH_KEY);
conn.setRequestProperty("Content-Type", "application/json");
conn.setDoOutput(true);
// Send FCM message content.
OutputStream outputStream = conn.getOutputStream();
outputStream.write(jPayload.toString().getBytes());
// Read FCM response.
InputStream inputStream = conn.getInputStream();
final String resp = convertStreamToString(inputStream);
Handler h = new Handler(Looper.getMainLooper());
h.post(new Runnable() {
#Override
public void run() {
Log.e("Response", resp);
//txtStatus.setText(resp);
}
});
} catch (JSONException | IOException e) {
e.printStackTrace();
}
}
Add this is in your AndroidManifest.xml
<activity android:name="com.example.fcm.SecondActivity">
<intent-filter>
<action android:name="OPEN_ACTIVITY_1" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
MyFirebaseMessagingService.java
public class MyFirebaseMessagingService extends FirebaseMessagingService {
#Override
public void onMessageReceived(RemoteMessage remoteMessage) {
super.onMessageReceived(remoteMessage);
// If the application is in the foreground handle both data and notification messages here.
// Also if you intend on generating your own notifications as a result of a received FCM
// message, here is where that should be initiated. See sendNotification method below.
RemoteMessage.Notification notification = remoteMessage.getNotification();
Map<String, String> map = remoteMessage.getData();
sendNotification(notification.getTitle(), notification.getBody(), map);
}
private void sendNotification(String title, String body, Map<String, String> map) {
Bitmap icon = BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher);
Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_ONE_SHOT);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setContentTitle(title)
.setContentText(body)
.setAutoCancel(true)
.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
.setContentIntent(pendingIntent)
.setContentInfo(title)
.setLargeIcon(icon)
.setSmallIcon(R.mipmap.ic_launcher);
try {
String picture_url = map.get("picture_url");
if (picture_url != null && !"".equals(picture_url)) {
URL url = new URL(picture_url);
Bitmap bigPicture = BitmapFactory.decodeStream(url.openConnection().getInputStream());
notificationBuilder.setStyle(new NotificationCompat.BigPictureStyle().bigPicture(bigPicture).setSummaryText(body));
}
} catch (IOException e) {
e.printStackTrace();
}
notificationBuilder.setDefaults(Notification.DEFAULT_VIBRATE);
notificationBuilder.setLights(Color.YELLOW, 1000, 300);
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(0, notificationBuilder.build());
}
}
SecondActivity.java
public class SecondActivity extends AppCompatActivity {
private static final String TAG = "SecondActivity";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
Bundle bundle = getIntent().getExtras();
if (bundle != null) {
for (String key : bundle.keySet()) {
Object value = bundle.get(key);
Log.d(TAG, "Key: " + key + " Value: " + value.toString());
}
}
}
}
2. Second way
Send key through data payload like below and get key in MainActivity via getIntent() and call specific activity or fragments.
json1.put("title","Your Title");
json1.put("body","body content");
json1.put("message","Your Message");
json1.put("screen","2"); //secondFragment is 2nd position in nav drawer
json.put("data", json1);
MainActivity.java
Intent intent = getIntent();
String pos = getIntent().getStringExtra("screen");
if(pos !=null){
selectDrawerItem(navigationView.getMenu().getItem(Integer.parseInt(pos)));
}
Sample project in GITHUB,
https://github.com/Google-IO-extended-bangkok/FCM-Android