iphone - Producing Custom Vibration in iOS -

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i have app makes custom vibrations. i.e. changes intensity , duration. came know can done using 1 of private functions of audiotoolbox framework. function details: 

void audioservicesplaysystemsoundwithvibration(systemsoundid insystemsoundid,id arg,nsdictionary* vibratepattern)

the method on how use function described in post : are there apis custom vibrations in ios?

my question :

as said in 1 of comments in above post, possible use function , app approved apple. or there certainty rejected apple?


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