当我通过UIPageViewController浏览速度超过其转换动画时,我得到“MyDataViewController>”的不平衡调用开始/结束外观转换并且在我尝试翻页之前,不会显示景观中的两个视图之一.
任何人有一个想法来解决这个bug？
解决方法
上面的答案是正确的,但我认为比需要更精细,食谱是有帮助的.所以这里似乎是为我工作的：
在设置并调用pageViewController的视图控制器中,
宣布：
@property (assign) BOOL pageIsAnimating;
并在viewDidLoad：
pageIsAnimating = NO;
加这个：
- (void)pageViewController:(UIPageViewController *)pageViewController willTransitionToViewControllers:(NSArray *)pendingViewControllers {
pageIsAnimating = YES;
}
并添加几行：
- (void)pageViewController:(UIPageViewController *)pageViewController
didFinishAnimating:(BOOL)finished prevIoUsViewControllers:(NSArray *)prevIoUsViewControllers
transitionCompleted:(BOOL)completed {
if (completed || finished) // Turn is either finished or aborted
pageIsAnimating = NO;
...
}
手势被拒绝提供视图控制器信息被抑制：
- (UIViewController *)pageViewController:(UIPageViewController *)pageViewController
viewControllerAfterViewController:(UIViewController *)viewController {
if (pageIsAnimating)
return nil;
...
return after;
}
- (UIViewController *)pageViewController:(UIPageViewController *)pageViewController
viewControllerBeforeViewController:(UIViewController *)viewController {
if (pageIsAnimating)
return nil;
...
return before;
}
哦,方向改变重置标志：
- (UIPageViewControllerSpineLocation)pageViewController:(UIPageViewController *)pageViewController
spineLocationForInterfaceOrientation:(UIInterfaceOrientation)orientation {
pageIsAnimating = NO;
...
}
