Cocos2d + UIViewController switch -

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its game cocos2d 2.1 beta.

i used seperate viewcontroller comes when pressing button. when fast switch between these 2 time game hangs...not crash..fps label works. stopanimation..

what's wrong code? how can avoid hang? when fast switched.

-(void)shownativeview {     uiviewcontroller *controller = [[uiviewcontroller alloc] init];     appcontroller *app = (appcontroller*) [[uiapplication sharedapplication] delegate];      [[app navcontroller] presentmodalviewcontroller:controller animated:no];     [uiview animatewithduration:1.0                      animations:^{controller.view.alpha = 1.0;}];      [controller release]; }  -(void)gotogameagain {     appcontroller *app = (appcontroller*) [[uiapplication sharedapplication] delegate];      [app navcontroller].modaltransitionstyle = uimodaltransitionstylecrossdissolve;     [[app navcontroller] dismissmodalviewcontrolleranimated:yes]; }

do need initiate uiviewcontroller when button clicked? may better if initiate once , use when button clicked. initiating evertime clicked on button may creating performance issues during fast switch...


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