vibrate in push notification

Question

How can I set that device should vibrate if a push notification come to my application?

Answer 1

Omitting the sound key should do the trick:

{"aps":{"alert":{"loc-key":"SOME_KEY"}, "badge":1} The docs state that "If the sound file doesn’t exist or default is specified as the value, the default alert sound is played.". What they don't say is that if you don't provide a sound key at all, no sound will be played. If no sound is played, the phone should not vibrate as well.

if the iPhone has Vibrate set to ON in Settings > Sounds,and remove "sound="silence.caf",the end will be: doesn't vibrate