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I am working on pdf reader app.i am using gestures for rendering next page from the current page,for this i am using swipe.
1.My work is working well.
2. For each time i am calling drawLayer using setNeedsDisplay.
3.My app is working fine if the swipe is slow means while page rendering is in process if i swipe then it is getting crashing.
can any one help me to solve this issue with some library files.
Thank you all,
this is the answer for the above question [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(loadPagesAccordingToCurrentOrientation) object:nil]; [self performSelector:@selector(loadPagesAccordingToCurrentOrientation) withObject:nil afterDelay:0.5];