How to make a screen wake up when a notification is received?

Question

For my app I'm trying to get it where the notification wakes up the screen and displays a view from the app. I can't figure how to get the app to wake up when its in a lock screen. I've tried a few things but none seem to work or they crash the app.

https://stackoverflow.com/questions/9631869/light-up-screen-when-notification-received-android — akshay_shahane, Jul 31 '17 at 12:22
Would https://stackoverflow.com/questions/2891337/turning-on-screen-programmatically help you at all? — Adam, Jul 31 '17 at 12:28

Jan Moravec · Answer 1 · 2019-04-12T11:44:00.813

16

There is my solution:

createNotification(); //your implementation
PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
boolean isScreenOn = Build.VERSION.SDK_INT >= 20 ? pm.isInteractive() : pm.isScreenOn(); // check if screen is on
if (!isScreenOn) {
    PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP, "myApp:notificationLock");
    wl.acquire(3000); //set your time in milliseconds
}

More at PowerManager

edited Apr 12 '19 at 11:44

answered Apr 11 '19 at 14:30

Jan Moravec

496
6
9

1

`SCREEN_DIM_WAKE_LOCK` is deprecated. However, none of the others using `PARTIAL_WAKE_LOCK` have worked for my app. I'm targeting API 19, but using API 28 on my phone – The Fluffy Robot Dec 31 '19 at 21:19
`ACQUIRE_CAUSES_WAKEUP` is officially recommended way to light up the display to show a notification. From the linked documentation: `Notifications that pop up and want the device to be on are the exception; use this flag to be like them.` – Velda May 04 '20 at 09:33
Also, but I'm not sure about this, it's better to use as small amount of time as possible, so Android system won't judge your application for high battery consumption. The device will go into a sleep as usually. – Velda May 04 '20 at 09:54
1

Problem: ACQUIRE_CAUSES_WAKEUP - when just on its own, it KILLS the Background Service !!!??? – ekashking Oct 18 '20 at 04:16

score 5 · Answer 2 · edited Apr 23 '21 at 06:55

This BroadCastReceiver Works For, your App Is in back ground State/ mobile In lock mode. That time when notification is recieved i have to redirect particular screen, for that one i added Intent code, After receiving Notification this code helps to your requirement

public class FirebaseDataReceiver extends WakefulBroadcastReceiver {
    
      private final String TAG = "FirebaseDataReceiver";
    
        public void onReceive(Context context, Intent intent) {
            PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
            boolean isScreenOn = pm.isScreenOn();
            if(isScreenOn==false)
            {
                PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK |PowerManager.ACQUIRE_CAUSES_WAKEUP |PowerManager.ON_AFTER_RELEASE,"MyLock");
                wl.acquire(10000);
                PowerManager.WakeLock wl_cpu = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,"MyCpuLock");
    
                wl_cpu.acquire(10000);
            }
           //Redirect particular screen after receiving notification, this is like ola driver app concept accepting driver request
            intent = new Intent(context, MyTicketListActivity.class);
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            context.startActivity(intent);
    
        }
    }

Also remember to specify the permission used in the AndroidManifest.xml:

<uses-permission android:name="android.permission.WAKE_LOCK" />

But how I can invoke? – shariful islam May 24 '18 at 06:21 — shariful islam, May 24 '18 at 06:21

score 2 · Answer 3 · answered Nov 23 '21 at 06:57

Put below code before notification creates,

PowerManager powerManager = (PowerManager) context.getSystemService(context.POWER_SERVICE);
    PowerManager.WakeLock  wakeLock = powerManager.newWakeLock(PowerManager.FULL_WAKE_LOCK |
            PowerManager.ACQUIRE_CAUSES_WAKEUP |
            PowerManager.ON_AFTER_RELEASE, "appname::WakeLock");

//acquire will turn on the display
wakeLock.acquire(1*60*1000L);

And make sure to set this permission in the manifest :

<uses-permission android:name="android.permission.WAKE_LOCK"/>

score 1 · Answer 4 · answered Mar 02 '21 at 15:54

I faced a similar situation. It was required to show a notification screen for the user to accept or reject the notification, even when the screen is off. I fumbled with it for a while until now. The requirements demand the screen should be on and this can be achieved with a combination of flags for the window manager and the wake lock as shown below.

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    PowerManager pm = (PowerManager) this.getSystemService(Context.POWER_SERVICE);
    boolean isScreenOn = pm.isScreenOn();
    int flags = PowerManager.FULL_WAKE_LOCK
            | PowerManager.ACQUIRE_CAUSES_WAKEUP
            | PowerManager.ON_AFTER_RELEASE;
    if (!isScreenOn) {
        wakeLock = pm.newWakeLock(flags, "my_app:full_lock");
        wakeLock.acquire(20000);
    }

    setContentView(R.layout.activity_incoming_request);
    
    getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED |
            WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON |
            WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON |
            WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD |
            WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON);
    ...
    startRingingPhone();
}

This code block will display the activity on the lock screen.

How to make a screen wake up when a notification is received?

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