从文档文件夹中读取视频文件

Question

我的代码运行正常并在我的应用中向我显示视频：

NSURL *url = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"movie" ofType:@"mp4"]];
MPMoviePlayerViewController *playercontroller = [[MPMoviePlayerViewController alloc] initWithContentURL:url];
[self presentMoviePlayerViewControllerAnimated:playercontroller];
playercontroller.moviePlayer.movieSourceType = MPMovieSourceTypeFile;
[playercontroller.moviePlayer play];
playercontroller = nil;

我需要的是从文档文件夹中读取相同的文件，它存在，所以我做的是：

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsPath = [paths objectAtIndex:0];
NSString *str = [NSString stringWithFormat:@"%@/MyCoolApp/Animations/%@", documentsPath,@"movie"];
NSURL *url = [NSURL URLWithString:[[NSBundle mainBundle] pathForResource:str ofType:@"mp4"]];
MPMoviePlayerViewController *playercontroller = [[MPMoviePlayerViewController alloc] initWithContentURL:url];
[self presentMoviePlayerViewControllerAnimated:playercontroller];
playercontroller.moviePlayer.movieSourceType = MPMovieSourceTypeFile;
[playercontroller.moviePlayer play];
playercontroller = nil;

文件在那里，但没有播放，只是加载。

Answer 1

您正在获取文档文件夹的路径，然后尝试在主包中找到它。

尝试以下方法：

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:@"/MyCoolApp/Animations/movie.mp4"];
NSURL *movieURL = [NSURL fileURLWithPath:path];

MPMoviePlayerViewController *playercontroller = [[MPMoviePlayerViewController alloc] initWithContentURL:movieURL];
[self presentMoviePlayerViewControllerAnimated:playercontroller];
playercontroller.moviePlayer.movieSourceType = MPMovieSourceTypeFile;
[playercontroller.moviePlayer play];
playercontroller = nil;