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Monday, October 1, 2012

shouldAutorotateToInterfaceOrientation not getting called in iOS 6


shouldAutorotateToInterfaceOrientation not getting called in iOS 6 

The shouldAutorotateToInterfaceOrientation method is deprecated in iOS6. Instead shouldAutorotate and supportedInterfaceOrientation methods are used. If some logic is used in shouldAutorotateToInterfaceOrientation method, it should be implemented in -willRotateToInterfaceOrientation:duration: method.
First, if you want the view controller’s content to be able to auto rotate just return YES in -shouldAutorotate method.
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- (BOOL)shouldAutorotate
{
 return YES;
}
Supported interface orientations are returned in the -supportedInterfaceOrientations method.
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- (NSUInteger)supportedInterfaceOrientations
{
        //if you have different views for portrait and landscape they are assigned here for the first time
 self.view = UIInterfaceOrientationIsLandscape([[UIApplication sharedApplication] statusBarOrientation]) ? _viewLandscape : _viewPortrait;
        //return orientations you want to support
 return (UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskLandscapeLeft | UIInterfaceOrientationMaskLandscapeRight | UIInterfaceOrientationMaskPortraitUpsideDown);
}
If there is some logic, like switching views for landscape and portrait on rotation use the -willRotateToInterfaceOrientation:duration: method.
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- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{
 [super willRotateToInterfaceOrientation:toInterfaceOrientation duration:duration];
 self.view = UIInterfaceOrientationIsLandscape(toInterfaceOrientation) ? _viewLandscape : _viewPortrait;
}

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