IOS Mobile (continuous) vibrate

1. Background does not execute
Load the library file first: audiotoolbox.framework
Introduction of header file: #import "audiotoolbox/audiotoolbox.h" (Warm tip: because it is called Objective-c Note the file name)
Opening method: Audioservicesplaysystemsound (Ksystemsoundid_vibrate);

You cannot modify the vibration parameters, each call generates a short 1-2-second vibration. On a platform that does not support vibration, the call does nothing, but it does not have an error-(void) Application: (UIApplication *) application didreceiveremotenotification: ( Nsdictionary *) UserInfo Fetchcompletionhandler: (void (^) (uibackgroundfetchresult)) Completionhandler {  //IOS 7 Support Required  NSLog (@ "received notification:%@", userInfo);  [Apservicehandleremotenotification:userinfo];  Completionhandler (uibackgroundfetchresultnewdata);  After receiving the notification continuous vibration  audioservicesaddsystemsoundcompletion (ksystemsoundid_vibrate, NULL, NULL, Systemaudiocallback, NULL);  Audioservicesplaysystemsound (ksystemsoundid_vibrate);} void Systemaudiocallback (Systemsoundid soundid, void* clientdata) {  Audioservicesplaysystemsound (KSystemSoundID _vibrate);}

2. The front office is executed

Continuous vibration after receiving notification for (int i=0; i<10; i++) {  [nsthread sleepfortimeinterval:0.7];  Audioservicesplaysystemsound (ksystemsoundid_vibrate);}

IOS Mobile (continuous) vibrate