Question

我有一个自定义的故事板segue，从右到左呈现视图。但是在动画期间，有一个瞬间黑屏显示出一些锯齿状的体验。

这是我的代码：

    UIViewController *srcViewController = (UIViewController *) self.sourceViewController;
    srcViewController.modalPresentationStyle = UIModalPresentationCurrentContext;
    UIViewController *destViewController = (UIViewController *) self.destinationViewController;

    CATransition *transition = [CATransition animation];
    transition.duration = 0.1;
    transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
    transition.type = kCATransitionPush;
    transition.subtype = kCATransitionFromRight;
    [srcViewController.view.window.layer addAnimation:transition forKey:nil];

    [srcViewController presentViewController:destViewController animated:NO completion:nil];

Answer 1

确保viewDidLoad中的destViewController将其视图的背景颜色设置为：

//DestViewController
- (void)viewDidLoad {
    [super viewDidLoad];
    self.view.backgroundColor = [UIColor whiteColor];
}

或者，我并非100％确定这是否有效，但我更适合您的代码：

UIViewController *destViewController = (UIViewController *)self.destinationViewController;
destViewController.view.backgroundColor = [UIColor whiteColor];

//Now do all the CATransitions, etc.

目标C - 自定义故事板Segue黑屏

1 个答案: