停止播放声音推送通知

Question

Tried to find this already but can't find any questions which are asking quite the same thing.

Basically I have set up my push notifications, everything works fine and they are received both when the app is open and closed.

I recieve push, sound begins play. For some reason i need to cancel sound without active app. Skype have this feature. When app is suspended, incoming call start to play sound by push. After call cancelation sound stops.

UPD: Is there a way to cancel the sound like Skype? When Skype app is suspended iPhone receives PUSH for incoming call. Sound begins playing. When call cancel at other side iPhone stops play sound by second push. Anyone knows how this feature works?

Answer 1

You specify a bitmask of notification types when you register for notifications. If you don't want a sound to be played when notifications come in, remove UIRemoteNotificationTypeSound from that bitmask

[[UIApplication sharedApplication] registerForRemoteNotificationTypes:(UIRemoteNotificationTypeAlert|UIRemoteNotificationTypeBadge)];

Answer 2

I think they're using invisible push to trigger a local notification. Local notification may be cancelled, so they then cancel it when needed.