Develop Reference

Android notification click to open app only works 1st time

I have a foreground service with a notification. I create the notification like this:
Notification notification = new NotificationCompat.Builder(this, CHANNEL_ID)
.setOngoing(true)
.setContentTitle("App name")
.setContentText(Utility.getNotificationContentText())
.setSmallIcon(R.mipmap.ic_launcher_round)
.setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
.setContentIntent(pendingIntent)
.setOnlyAlertOnce(true)
.build();
On the notification I set a pending intent like so:
Intent notificationIntent = new Intent(this, MainActivity.class);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
When I click the notification the first time, it works as expected. It opens the app. However, when I click the notification the second time, nothing happens.
For what it's worth, I open the MainActivity.class, but my app has different fragments. I would like to open a specific fragment, but I am not sure if I can pass FragmentName.class into the intent.
Any help for getting the notification click to work every time?

Set the below flags of the PendingIntet so that you can update if there is a current pending intent with the new PendingIntent.
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent,
PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_ONE_SHOT);

I managed to fix it. The problem was that I was updating the notification with a intent that had the wrong class.

How to create a chronometer in a notification Android?

I have the following method below:
public NotificationCompat.Builder createNotification(Context context) {
Intent intent = new Intent(this, MapsActivity.class);
PendingIntent pIntent = PendingIntent.getActivity(this, (int) System.currentTimeMillis(), intent, 0);
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
boolean running = true;
builder = new NotificationCompat.Builder(context)
.setContentText("conteúdo")
.setContentTitle("titulo")
.setSmallIcon(R.drawable.ic_today_black_24dp)
.setAutoCancel(false)
.setOnlyAlertOnce(true)
.setOngoing(running)
.setContentIntent(
PendingIntent.getActivity(context, 10,
new Intent(context, MapsActivity.class)
.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP),
0)
)
.addAction(running ? R.drawable.ic_stop_black_24dp
: R.drawable.ic_play_arrow_black_24dp,
running ? "Pause"
: "play",
pIntent)
.addAction(R.drawable.ic_stop_black_24dp, "Stop",
pIntent);
notificationManager.notify(0, builder.build());
return builder;
}
In which launched a notification in the status bar, as shown below in the first notification:
To link the notification I do this:
NotificationCompat.Builder notification = createNotification(this);
NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.notify(0, notification.build());
I would like to create a Chronometer in a notification, exactly as it appears in the Strava notification (second notification of the image), as shown above.
How to create a Chronometer in a notification?

So creating the App Widget layout is simple if you know how to work with Layouts. However, you have to be aware that App Widget layouts are based on RemoteViews, which do not support every kind of layout or view widget. Anyway if you need asistance with App Widget layout here is some guaidance:
https://developer.android.com/guide/practices/ui_guidelines/widget_design.html
Luckily for you RemoteViews support Chronometer as you can see from developer webiste: https://developer.android.com/guide/topics/appwidgets/index.html#CreatingLayout
A think you can acces your Chronometer as usually and you could do something like this depends do you want it to pause, resume, whatever:
remoteView.setChronometer(R.id.myChronometere, SystemClock.elapsedRealtime(),
null, false); //pausing

You can use built in chronometer:
builder = new NotificationCompat.Builder(context)
builder.setUsesChronometer(true)
...
builder.build()

Android How to show alert on another app

Hi I want to show alert after click on my notification. Here is code:
#SuppressWarnings("deprecation")
private void Notify(String notificationTitle, String notificationMessage) {
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
Notification notification = new Notification(R.drawable.icon_stat, "Powiadomionko", System.currentTimeMillis());
notification.ledARGB = Color.CYAN;//0xFFff0000;
notification.ledOnMS = 800;
notification.ledOffMS = 2400;
notification.vibrate = new long[]{100, 120, 100, 120};
Intent notificationIntent = new Intent(this, TerminarzActivity.class);
notification.flags = Notification.FLAG_SHOW_LIGHTS | Notification.FLAG_AUTO_CANCEL | Notification.DEFAULT_VIBRATE;
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
notification.setLatestEventInfo(Serwis_updateTERM.this, notificationTitle, notificationMessage, pendingIntent);
notificationManager.notify(1, notification);
}
And I want to show Alert on anything not on my Activity after click. Anyone know how to do this ?
I know i must add
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
but nothing else..

Check out the creation of this notification (taken from Geofence sample). This code creates a notification and if you touch it it launches your MainActivity.
// Create an explicit content Intent that starts the main Activity
Intent notificationIntent = new Intent(getApplicationContext(), MainActivity.class);
// Construct a task stack
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
// Adds the main Activity to the task stack as the parent
stackBuilder.addParentStack(MainActivity.class);
// Push the content Intent onto the stack
stackBuilder.addNextIntent(notificationIntent);
// Get a PendingIntent containing the entire back stack
PendingIntent notificationPendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
// Get a notification builder that's compatible with platform versions
// >= 4
NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
// Set the notification contents
builder.setSmallIcon(R.drawable.ic_folder)
.setContentTitle(getString(R.string.geofence_transition_notification_title, transitionType, ids))
.setContentText(getString(R.string.geofence_transition_notification_text))
.setContentIntent(notificationPendingIntent);
// Get an instance of the Notification manager
NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
// Issue the notification
mNotificationManager.notify(0, builder.build());
This code might help you, but still it depends what do you mean by "alert".

How can I open activity when notification is touched?

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))

Notification opening Google play

I would like make a notification when clicking open Google Play.
I'm using a google Api example.
Another question is, the notification Id can be static one?
Is neceesary add some other stuff in androidmanifest?
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.notification_icon)
.setContentTitle("My notification")
.setContentText("Hello World!");
Intent resultIntent = new Intent(this, ResultActivity.class);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
stackBuilder.addParentStack(ResultActivity.class);
stackBuilder.addNextIntent(resultIntent);
PendingIntent resultPendingIntent =
stackBuilder.getPendingIntent(
0,
PendingIntent.FLAG_UPDATE_CURRENT
);
mBuilder.setContentIntent(resultPendingIntent);
NotificationManager mNotificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.notify(mId, mBuilder.build());

Notification ID is only for Notification identification and also if the previous notification is still visible, the system updates it from the contents of the Notification object. If the previous notification has been dismissed, a new notification is created instead.
You must add your intent ResultActivity into your manifest.xml file and also if you set Notification sound then you must add Vibrate permission into your manifest.xml file that's it.