Android通知不会发出声音或振动

Question

int icon = R.drawable.icon;  
Context context = getApplicationContext();    
CharSequence contentTitle = "My notification";  
CharSequence contentText = "Countdown Complete!";     
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
Intent intent = new Intent();
Notification notification = new Notification(icon, "is completed!", System.currentTimeMillis());  
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
notification.setLatestEventInfo(context, contentTitle, contentText, pendingIntent);
long[] vibrate = {0,100,200,300};
notification.vibrate = vibrate;
notification.defaults |= Notification.DEFAULT_LIGHTS;
notification.defaults |= Notification.DEFAULT_SOUND; 
notificationManager.notify(myCountDown.getId(), notification);

This code in my android application and i get the notification but no sound or vibration.

I've tested on multiple phones all with sound and vibration turned on and up in settings. I've also made sure that i'm asking to use the vibration permission in the android manifest but i still only get the notification...

I've also tried:

notification.defaults = Notification.DEFAULT_ALL;

and

notification.defaults |= Notification.DEFAULT_VIBRATE;
notification.defaults |= Notification.DEFAULT_LIGHTS;
notification.defaults |= Notification.DEFAULT_SOUND;

How do I get sound and vibration in my notifications?

Answer 1

Don't forget to enable the vibration setting for ringtone and notifications. Go to Settings -> Sound. Check "Sound an vibration".

Answer 2

notification.defaults |= Notification.DEFAULT_VIBRATE; doesn't work ?

Answer 3

Step #1: Make sure you have the VIBRATE permission in the manifest, and that you are running on a device that has a vibration motor.

Step #2: Get rid of getApplicationContext() , as you do not need it here.

Step #3: Try specifying an actual ringtone via the sound data member on Notification , to see if it's a matter of the default not playing (you will need to not have DEFAULT_SOUND in flags ).

Answer 4

Notification notif ... //create your notification

notif.defaults |= Notification.DEFAULT_SOUND; notif.defaults |= Notification.DEFAULT_VIBRATE;

Don't forget to include the Vibrate permission in your manifest.