ios - 使用 xcode11 在 ios 13 上运行项目时，基于 View Controller 的旋转停止工作

Question

我刚刚安装了 xcode 11 gm 种子，并在其上运行我的项目，我意识到没有一个旋转方法在​​ xcode 10 及之前的版本中完美调用。我不知道这是 xcode 的错误还是我遗漏了一些东西。这是我正在使用的设备旋转方法

- (BOOL) shouldAutorotate
{

    if([videoOptions[@"doc_type"] integerValue] == 3){
                return NO;
    }
    return YES;
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
       if([videoOptions[@"doc_type"] integerValue] == 3){
            return UIInterfaceOrientationPortrait;
        }
    return UIInterfaceOrientationPortrait|UIInterfaceOrientationLandscapeLeft|UIInterfaceOrientationLandscapeRight;
    //    return UIInterfaceOrientationPortrait;
}

- (UIInterfaceOrientationMask)supportedInterfaceOrientations
{
    if([videoOptions[@"doc_type"] integerValue] == 3){
        return UIInterfaceOrientationMaskPortrait;
    }
    return UIInterfaceOrientationMaskAllButUpsideDown;
    //    return UIInterfaceOrientationMaskPortrait;
}

// Notifies when rotation begins, reaches halfway point and ends.
- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{
    //    NSLog(@"%ld, duration: %f", (long)toInterfaceOrientation, duration);
    //    [self.movieSlider hidePopover];
}

- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation
{

    [self viewRotationCompleted];
} 

Answer 1

两种方法

- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation 
                                duration:(NSTimeInterval)duration;
- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation;

自 iOS8 起已弃用。你需要使用他们的替换方法，

- (void)viewWillTransitionToSize:(CGSize)size 
       withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator;

但是 UPSideDown 旋转不会调用此方法。所以你需要注意这一点。