[問題] 翻轉後改變constraint的priority當機
想藉由在程式更改ConstraintBottom.priority變更View位置
不過都會遇到當機狀況無法解決
@property (strong, nonatomic) IBOutlet NSLayoutConstraint
*pageBarConstraintBottom;
- (void)statusBarOrientationChange:(NSNotification *)notification{
UIInterfaceOrientation orientation = [[UIApplication sharedApplication]
statusBarOrientation];
if ( (orientation == UIInterfaceOrientationLandscapeRight) ||
(orientation ==UIInterfaceOrientationLandscapeLeft) )
{
_pageBarConstraintBottom.priority = UILayoutPriorityRequired;
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
每次在這裡當機
}
}
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