MPMoviePlayerViewController 不会播放电影，立即启动和关闭答案

【问题标题】：MPMoviePlayerViewController won't play movie, start and closes immediatelyMPMoviePlayerViewController 不会播放电影，立即启动和关闭
【发布时间】：2013-04-10 13:48:45
【问题描述】：

我正在尝试使用 MPMoviePlayerViewController 播放视频，我展示了 MPMoviePlayerViewController，但 1 秒后他自行关闭。

这是我的代码：

.h:

#import <MediaPlayer/MediaPlayer.h>

@property (strong, nonatomic) MPMoviePlayerViewController *moviePlayerViewController;

.m:

- (void)playmovie
{
    NSString *databaseName = @"NO.mp4";
    NSArray *documentPaths =
    NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

    NSString *documentDir = [documentPaths objectAtIndex:0];
    NSString *databasePath = [documentDir stringByAppendingPathComponent:databaseName];

    NSURL *movieURL = [NSURL fileURLWithPath:databasePath];

    UIGraphicsBeginImageContext(CGSizeMake(1,1));
    self.moviePlayerViewController = [[MPMoviePlayerViewController alloc] initWithContentURL:movieURL];
    [self presentMoviePlayerViewControllerAnimated:self.moviePlayerViewController];
    UIGraphicsEndImageContext();

    [self.moviePlayerViewController.moviePlayer prepareToPlay];
    [self.moviePlayerViewController.moviePlayer play];
}

请告诉我我做错了什么。

提前致谢！

【问题讨论】：

检查下面的答案 stackoverflow.com/a/15586468/1713478 将 url 更改为您的文件路径。试试这个你会成功的。
那里的图形上下文是什么？
@jjv360 因为我遇到了这个错误：<Error>: CGContextSaveGState: invalid context 0x0 <Error>: CGContextClipToRect: invalid context 0x0 <Error>: CGContextTranslateCTM: invalid context 0x0 <Error>: CGContextDrawShading: invalid context 0x0 <Error>: CGContextRestoreGState: invalid context 0x0
可以给presentMoviePlayerViewControllerAnimated里的code吗？
试试下面的 NSString *path =[[NSBundle mainBundle] pathForResource:@"NO" ofType:@"mp4"]; NSURL *url = [NSURL fileURLWithPath:path];

标签： ios objective-c mpmovieplayercontroller mpmovieplayer mpmoviewcontroller

【解决方案1】：

检查下面的答案

https://stackoverflow.com/a/15586468/1713478

把网址改成下面的代码

NSString *path =[[NSBundle mainBundle] pathForResource:@"NO" ofType:@"mp4"]; 
NSURL *url = [NSURL fileURLWithPath:path];

试试这个你会成功的。

【讨论】：

【解决方案2】：

试试这个..

NSString *databaseName = @"NO.mp4";
    NSArray *documentPaths =
    NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

    NSString *documentDir = [documentPaths objectAtIndex:0];
    NSString *databasePath = [documentDir stringByAppendingPathComponent:databaseName];
    NSURL *url = [NSURL fileURLWithPath:databasePath];
    MPMoviePlayerViewController *moviePlayer = [[MPMoviePlayerViewController alloc] initWithContentURL:url];
    moviePlayer.view.frame = CGRectMake(0, 0, 500, 500);
    moviePlayer.moviePlayer.shouldAutoplay=YES;
    moviePlayer.moviePlayer.controlStyle = MPMediaTypeMusicVideo;
    [moviePlayer.moviePlayer setFullscreen:YES animated:YES];
    [self.view addSubview:moviePlayer.view];
    [moviePlayer.moviePlayer play];

【讨论】：