how to run vibrate continuously in iphone

Question

In my application I m using following coding pattern to vibrate my iPhone device  Include  AudioToolbox framework  Header File    import  AudioToolbox AudioServices h    Code   AudioServicesPlaySystemSound kSystemSoundID Vibrate       My problem is that when I run my application it gets vibrate but only for second but I want that it will vibrate continuously until I will stop it   How could it be possible

User · Answer

Read the Apple Human Interaction Guidelines for iPhone  I believe this is not approved behavior in an app

User · Answer

The above answers are good and you can do it in a simple way also  You can use the recursive method calls  func vibrateTheDeviceContinuously   throws                       Added concurrent queue for next  amp  Vibrate device         DispatchQueue global qos   utility  async                              Vibrate the device             AudioServicesPlaySystemSound kSystemSoundID Vibrate               self incrementalCount    1             usleep 800000     if you don t want  remove this line               do                   if let isKeepBuzzing   self iShouldKeepBuzzing   isKeepBuzzing    true                       try self vibrateTheDeviceContinuously                                      else                       return                                                    catch                      Exception handle                print  quot exception quot                                               To stop the device vibration use the following line  self iShouldKeepBuzzing   false

User · Answer

Thankfully  it s not possible to change the duration of the vibration   The only way to trigger the vibration is to play the kSystemSoundID Vibrate as you have   If you really want to though  what you can do is to repeat the vibration indefinitely  resulting in a pulsing vibration effect instead of a long continuous one  To do this  you need to register a callback function that will get called when the vibration sound that you play is complete    AudioServicesAddSystemSoundCompletion           kSystemSoundID Vibrate          NULL          NULL          MyAudioServicesSystemSoundCompletionProc          NULL            AudioServicesPlaySystemSound kSystemSoundID Vibrate     Then you define your callback function to replay the vibrate sound again    pragma mark AudioService callback function prototypes void MyAudioServicesSystemSoundCompletionProc      SystemSoundID  ssID     void            clientData      pragma mark AudioService callback function implementation     Callback that gets called after we finish buzzing  so we     can buzz a second time  void MyAudioServicesSystemSoundCompletionProc      SystemSoundID  ssID     void            clientData       if  iShouldKeepBuzzing       Your logic here          AudioServicesPlaySystemSound kSystemSoundID Vibrate        else           Unregister  so we don t get called again          AudioServicesRemoveSystemSoundCompletion kSystemSoundID Vibrate

User · Answer

There are numerous examples that show how to do this with a private CoreTelephony call   CTServerConnectionSetVibratorState  but it s really not a sensible course of action since your app will get rejected for abusing the vibrate feature like that  Just don t do it

User · Answer

iOS 5 has implemented Custom Vibrations mode  So in some cases variable vibration is acceptable  The only thing is unknown what library deals with that  pretty sure not CoreTelephony  and if it is open for developers  So keep on searching

[iphone] how to run vibrate continuously in iphone?

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