Iphone 如何在滚动条上添加视频？

我正在开发一个视频管理应用程序。我在滚动视图中添加视频

除了黑屏，什么也看不见。此代码工作正常，仅在滚动条上添加黑色视图，内容为显示

如果有人有任何想法，请提供给我

(void)LoadVideosToScrollView
{    
    NSArray *paths=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentDirectory=[paths objectAtIndex:0];
    NSString *videoDirectory=[documentDirectory stringByAppendingPathComponent:@"/videos"];
    NSFileManager *fileManger=[NSFileManager defaultManager];
    NSDirectoryEnumerator *docEnum=[fileManger enumeratorAtPath:videoDirectory];
    MPMoviePlayerController *localMoviePlayer;
    CGFloat xAxis=10;
    NSInteger n=0;
    NSString *fileName;

    [self.scrollView setContentSize:CGSizeMake(560, 200)];
    while ((fileName=[docEnum nextObject]))
    {
        NSString *filePath=[videoDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"/%@",fileName]];
        //if file exist then file will be added on ScrollView
        if ([fileManger fileExistsAtPath:filePath])
        {
            NSURL *urlForFile=[NSURL fileURLWithPath:filePath];
            NSLog(@"%@",[urlForFile description]);
            localMoviePlayer=[[MPMoviePlayerController alloc]initWithContentURL:urlForFile];
            localMoviePlayer.scalingMode=MPMovieScalingModeAspectFit;
            localMoviePlayer.shouldAutoplay=NO;
            localMoviePlayer.controlStyle=MPMovieControlStyleNone;
            [localMoviePlayer prepareToPlay];
            tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tap:)];
            [localMoviePlayer.view addGestureRecognizer:tap];
            [localMoviePlayer.view setTag:n];
            [localMoviePlayer.view setFrame:CGRectMake(xAxis,5,150,120)];
            [self.scrollView addSubview:localMoviePlayer.view];
            [moviePlayerContainer addObject:urlForFile];
            xAxis+=155;
            n++;
        }
    }
}

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我已经开发了这段代码。

您需要使用

AVPlayer

来代替

MPMoviePlayerController

，就像使用

AVPlayer

一样，您可以将视频渲染到特定的源代码视图-在您的例子中是滚动视图

---

祝你好运

你没有调用play method

// Plays items from the current queue, resuming paused playback if possible.
- (void)play;

---

请尝试下一个代码

 _moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:[NSURL fileURLWithPath:filePath]];

[[_moviePlayer view] setFrame:[[self view] bounds]];
[[self view] addSubview: [_moviePlayer view]];

_moviePlayer.scalingMode = MPMovieScalingModeAspectFit;

[_moviePlayer play];

---

如果您在一个scrollview上有许多视频，您将在memmory管理方面遇到问题，为了优化视频列表的显示过程，您可以使用UITableView并将视频放在每个单元格上，因为UITableView已经为其单元格设置了自己的内存管理器