ios - 在应用启动时显示介绍视频

Question

我必须在应用程序启动时显示一个小的介绍视频，我也必须显示初始屏幕 (DEFAULT.png)。所以在我的第一个 View Controller 的 viewDidLoad 中我做了:

    NSURL * movieUrl = [[NSURL alloc] initFileURLWithPath: [[NSBundle mainBundle] pathForResource:@"movie" ofType:@"mp4"]];
    self.playerController = [[MPMoviePlayerViewController alloc]initWithContentURL:movieUrl];

    //Fit the screen
    self.playerController.view.frame = CGRectMake(0, -20, 320, 480);

    //Hide video controls
    self.playerController.moviePlayer.controlStyle = MPMovieControlStyleNone;

    //Play as soon as loaded
    self.playerController.moviePlayer.shouldAutoplay = YES;


    //Add the video as the first view background
    [self.view addSubview:playerController.moviePlayer.view];

但是在这个实现中，当播放器 View 被添加到 View 时总是有一个黑色的闪光。有什么办法可以避免黑闪吗？

Answer 1

与其在您的 firstViewController 中呈现 playerController，不如在 appDelegate 中处理它并将其呈现在窗口的 rootViewController 上。

NSURL * movieUrl = [[NSURL alloc] initFileURLWithPath: [[NSBundle mainBundle] pathForResource:@"movie" ofType:@"mp4"]];
self.playerController = [[MPMoviePlayerViewController alloc]initWithContentURL:movieUrl];

//Fit the screen
self.playerController.view.frame = CGRectMake(0, -20, 320, 480);

//Hide video controls
self.playerController.moviePlayer.controlStyle = MPMovieControlStyleNone;

//Play as soon as loaded
self.playerController.moviePlayer.shouldAutoplay = YES;

[self.window.rootViewController presentModalViewController:self.playerController animated:NO];

确保你没有动画。