I'm working on my first Android app to use the Google Cloud Messaging (GCM) service for push notifications. I've got to the point where I can successfully send a message from my server application, and log the content of the message in the onMessage event within my GCMIntentService class on the client app. However I don't see any visual indication on the device that a message was received. I was expecting the message to appear in the pull-down notifications list on the phone, as it does on the iPhone. Does this have to be coded manually? Also is there a common method for displaying the message regardless of which activity is currently active, and if the app is idle in the background? Any help appreciated.
This code will generate a notification in the android system bar at the top of the screen. This code will create a new intent that will direct the user to a "Home.class" after clicking on the notification in the top bar. If you would like it to do something specific based on the current activity you could send broadcast requests from the GCMIntentService to your other activities.
Intent notificationIntent=new Intent(context, Home.class);
generateNotification(context, message, notificationIntent);
private static void generateNotification(Context context, String message, Intent notificationIntent) {
int icon = R.drawable.icon;
long when = System.currentTimeMillis();
NotificationManager notificationManager = (NotificationManager)
context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(icon, message, when);
String title = context.getString(R.string.app_name);
// set intent so it does not start a new activity
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP |
Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent intent =PendingIntent.getActivity(context, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
notification.setLatestEventInfo(context, title, message, intent);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notificationManager.notify(0, notification);
}
Note that this example uses resources in R.drawable and R.String that will need to be present to work but it should give you the idea. See this for more information about status notifications http://developer.android.com/guide/topics/ui/notifiers/index.html and this about broadcast recievers. http://developer.android.com/reference/android/content/BroadcastReceiver.html
If you are using GcmListenerService you can use this code, add to your onMessageReceived the sendNotification()
#Override
public void onMessageReceived(String from, Bundle data) {
String message = data.getString("message");
sendNotification(message);
}
private void sendNotification(String message) {
Intent intent = new Intent(this, YOURCLASS.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent,
PendingIntent.FLAG_ONE_SHOT);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_park_notification)
.setContentTitle("Ppillo Message")
.setContentText(message)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
}
Related
I'm pretty new to Android development. I have been able to get a notification to pop up while the app is in the background. When I click on it, it successfully loads the application backup. However I want to load an Alert from the page but only when it is opened from a notification click.
Here is the code for generating the notification. Any help would be appreciated.
private void getNotificationForPasswordChange() {
NotificationManager mNotificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
CharSequence name = "Hello";// The user-visible name of the channel.
int importance = NotificationManager.IMPORTANCE_HIGH;
NotificationChannel mChannel = new NotificationChannel(CHANNEL_ID, name, importance);
if (mNotificationManager != null)
mNotificationManager.createNotificationChannel(mChannel);
}
Bitmap icon = BitmapFactory.decodeResource(getResources(),
R.mipmap.ic_launcher);
Intent i=new Intent(this, MainActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
i.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent mainIntent = PendingIntent.getActivity(this, 0,
i, PendingIntent.FLAG_UPDATE_CURRENT);
Notification notification = new NotificationCompat.Builder(this, CHANNEL_ID)
.setContentTitle("Pronto Tracker")
.setTicker("Pronto Tracker")
.setContentText("Cannot connect to server. Location is not being updated.")
.setSmallIcon(R.mipmap.ic_pronto_logo)
.setLargeIcon(Bitmap.createScaledBitmap(icon, 128, 128, false))
.setOngoing(true).setContentIntent(mainIntent).
build();
mNotificationManager.notify(Constants.PASSWORD_CHANGE_NOTIFICATION_ID, notification);
}
You can pass the alert message with notification PendingIntent. Add the message or value you want to show as alert in PendingIntent .putExtra() and also specify the activity in PendingIntent where you want to show the alert in form of dialog or anything.
Intent intent = new Intent(Application.getAppContext(), MainActivity.class);
intent.putExtra("is_notification", true);
intent.putExtra("alert_message", "Hello World!");
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent lowIntent = PendingIntent.getActivity(mContext, 100, intent, PendingIntent.FLAG_CANCEL_CURRENT);
After that add the PendingIntent to your notification.
Second thing you need to do is to get the data from the Intent when user taps on notification.
In your MainActivity add the following code to get data from Intent:-
if (getIntent() != null) {
String message = getIntent().getStringExtra("alert_message");
boolean isNotification = getIntent().getBooleanExtra("is_notification", false);
if(is_notification){
// show alert
}
}
You should use onCreate function on your MainActivity
Add this code to parce your intent:
Intent receivedIntent = getIntent();
i cant seem to understand how to display multiple notifications without one overlaying another. In my case it only displays one at the time.
picture 1
My goal is to get it to work like on the screenshot below
picture 2
What should I change or maybe add to my code?
chunk of code assigned for notifications
#Override
protected void onPostExecute(Bitmap result) {
super.onPostExecute(result);
Intent intent = new Intent(ctx, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("com.example.romanchuk.appisode.notifyId", id);
intent.putExtra("com.example.romanchuk.appisode.show_id", show_id);
PendingIntent pendingIntent = PendingIntent.getActivity(ctx, sNotificationId /* Request code */, intent,
PendingIntent.FLAG_UPDATE_CURRENT);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.InboxStyle inboxStyle = new NotificationCompat.InboxStyle();
inboxStyle.addLine(message);
NotificationCompat.BigTextStyle bigText = new NotificationCompat.BigTextStyle();
bigText.bigText(message);
bigText.setBigContentTitle(getString(R.string.app_name));
NotificationCompat.Builder builder = new NotificationCompat.Builder(ctx);
Notification notification = null;
notification = builder.setSmallIcon(R.mipmap.ic_launcher).setTicker(title).setWhen(0)
.setLargeIcon(BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher))
.setColor(getResources().getColor(R.color.color_accent))
.setContentTitle("Appisode")
.setContentIntent(pendingIntent)
.setFullScreenIntent(pendingIntent, true)
.setContentText(message)
.setDefaults(Notification.DEFAULT_ALL)
.setAutoCancel(true)
.setStyle(inboxStyle)
.setSmallIcon(R.drawable.small_icon)
.setSound(defaultSoundUri).build();
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(sNotificationId++, notification);
}
If you want to show multiple notifications, You Notification id should be different, If the notification id already exists in the notifications it will override that notification.
notificationManager.notify(sNotificationId++, notification);
In this sNotificationId should be different for all notification
If your id or show_id is int and not constant and if it will be different for each notification you can use that also as notification id.
Or try to give different tag for each notification like this,
notificationManager.notify(String.valueOf(System.currentTimeMillis()), sNotificationId++, notification);
I have sync adapter that performs some operation in background. To notify my main activity about sync operation status, I used broadcast receivers, so my activity is able to receive messages from sync adapter. It works fine. However, I also need to display notification on android status bar, that indicates some sync results.
So I wrote simple method reponsible to disaply system notification:
private void sendNotification(Context ctx, String message)
{
Intent intent = new Intent(ctx, this.getClass());
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent.FLAG_ONE_SHOT);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(ctx)
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("Mobile Shopping")
.setContentText(message)
.setAutoCancel(true)
.setDefaults(Notification.DEFAULT_SOUND | Notification.FLAG_SHOW_LIGHTS)
.setLights(0xff00ff00, 300, 100)
.setPriority(Notification.PRIORITY_DEFAULT);
//.setContentIntent(pendingIntent);
NotificationManager notificationManager = (NotificationManager) ctx.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(0 , notificationBuilder.build());
}
Then, above method is called in onPerform sync:
#Override
public void onPerformSync(Account account, Bundle extras, String authority, ContentProviderClient provider, SyncResult syncResult)
{
.................
sendNotification(context, message);
}
Context is retrieved from constructor. It works without any problems, notification is showing.
However I also need to show main activity after user cicks on notification. So I believe I need to create PendingIntent and pass it to my notification builder (as it's commented in my code). But to pass main activity object to my sync adapter? Notification can be also displayed after auto sync finished.
Any tips?
So, I figured it out. Solution is to create pending intent this way:
Intent notificationIntent = new Intent(ctx, MainActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(ctx, 0, notificationIntent, 0);
So after user clicks to notification, main activity will be shown.
I am building a notification for my Music Player, so it displays what music is playing.
But I want to add a function where, when I touch it. It opens my layout player.xml. Which is deployed through the MainActivity.class.
I have researched on Notifications on developer.android.com and found a way to deploy and activity upon clicking the notification. But it did't work.
Here is my current code -
Notification.Builder builder = new Notification.Builder(getApplicationContext());
builder.setContentTitle(songsList.get(songIndex).get("songTitle"));
builder.setContentText("NexPlay™");
builder.setTicker(songsList.get(songIndex).get("songTitle"));
builder.setSmallIcon(R.drawable.ic_launcher);
builder.setSmallIcon(R.drawable.play_default);
builder.setAutoCancel(true);
builder.setPriority(0);
builder.setOngoing(true);
Notification notification = builder.build();
NotificationManager notificationManger =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManger.notify(01, notification);
Thanks to everyone for answering!
I added
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, new Intent(this, NotificationToPlayer.class), 0);
builder.setContentIntent(pendingIntent);
to my notifications and it worked great !
Try this
private void showNotification() {
// In this sample, we'll use the same text for the ticker and the expanded notification
CharSequence text = getText(R.string.service_started);
// Set the icon, scrolling text and timestamp
Notification notification = new Notification(R.drawable.android, text,
System.currentTimeMillis());
// The PendingIntent to launch our activity if the user selects this notification
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
new Intent(this, ServiceLauncher.class), 0);
// Set the info for the views that show in the notification panel.
notification.setLatestEventInfo(this, getText(R.string.service_label),
text, contentIntent);
notification.defaults |= Notification.DEFAULT_SOUND;
// Send the notification.
// We use a layout id because it is a unique number. We use it later to cancel.
nm.notify(R.string.service_started, notification);
}
Hope this will solve your problem
You need to add intent on ur code:-
int icon = R.drawable.app_launcher;
long when = System.currentTimeMillis();
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(icon, message.split(":::")[1], when);
String title = context.getString(R.string.app_name);
Intent notificationIntent = null;
notificationIntent = new Intent(context, MessageDetail.class);
PendingIntent intent = PendingIntent.getActivity(context, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
notification.setLatestEventInfo(context, title, message.split(":::")[1], intent);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
// Play default notification sound
notification.defaults |= Notification.DEFAULT_SOUND;
// Vibrate if vibrate is enabled
notification.defaults |= Notification.DEFAULT_VIBRATE;
notificationManager.notify(0, notification);
You'll also want to add an intent. Something like:
Intent actIntent = new Intent(this, do MyActivity.class);
Then in your builder:
.setContentIntent(PendingIntent.getActivity(MyActivity, 131314, actIntent,
PendingIntent.FLAG_UPDATE_CURRENT))
I am developing an android app, which needs to receive the push notification.
The push notification is received but there is no message, just when I click on launcher icon in notification it launched app, but no message is received.
I am here handling only the receiving notification part, the notification is sent by some other guy from server and he is using VB.net for that, cant check his code. But I can post mine.
My onMessage:
protected void onMessage(Context context, Intent intent) {
Log.i(TAG, "Received message");
String message = intent.getExtras().getString("price");
generateNotification(context, message);
}
My generateNotification
private static void generateNotification(Context context, String message) {
int icon = R.drawable.ic_launcher;
long when = System.currentTimeMillis();
NotificationManager notificationManager = (NotificationManager)
context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(icon, message, when);
String title = context.getString(R.string.app_name);
Intent notificationIntent = new Intent(context, CoursesMainActivity.class);
// set intent so it does not start a new activity
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP |
Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent intent =
PendingIntent.getActivity(context, 0, notificationIntent, 0);
notification.setLatestEventInfo(context, title, message, intent);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
// Play default notification sound
notification.defaults |= Notification.DEFAULT_SOUND;
// Vibrate if vibrate is enabled
notification.defaults |= Notification.DEFAULT_VIBRATE;
notificationManager.notify(0, notification);
}
Please help with this, if someone wants to VB.net code for sending message I can provide that too.
Thanks,
Asmi
I resolved it as the other person(sending the push notification) was not sending it as "price", but as "message"