如何播放“照片”相册中的电影?我不想使用UIImagePickerController浏览电影,但是我希望能够指定电影的名称(或某种ID),如下面的代码所示。下面的代码在本地播放视频。如何修改播放“照片”应用中存储的“视频”相册中的视频的路径?非常感谢您的帮助。
NSString *url = [[NSBundle mainBundle]
pathForResource:@"Movie1"
ofType:@"MOV"];
MPMoviePlayerViewController *playerViewController =
[[MPMoviePlayerViewController alloc]
initWithContentURL:[NSURL fileURLWithPath:url]];
[[NSNotificationCenter defaultCenter]
addObserver:self
selector:@selector(movieFinishedCallback:)
name:MPMoviePlayerPlaybackDidFinishNotification
object:[playerViewController moviePlayer]];
[playerViewController.view setFrame: self.view.bounds];
[self.view addSubview:playerViewController.view];
MPMoviePlayerController *player = [playerViewController moviePlayer];
[player play];
[playerViewController release];
最佳答案
我最终使用ALAssetsLibrary并创建了一个URL(assetURL)数组,用于存储相册中视频的URL。如果可能对某人有帮助,则提供以下代码。
NSMutableArray *assets =[[NSMutableArray alloc]init];
NSMutableArray *assetURLs = [[NSMutableArray alloc] init];
NSMutableArray *assetGroups = [[NSMutableArray alloc] init];
ALAssetsLibrary *library = [[ALAssetsLibrary alloc]init];
void (^assetEnumerator)( ALAsset *, NSUInteger , BOOL *) = ^(ALAsset *result, NSUInteger index, BOOL *stop)
{
if(result != NULL)
{
NSLog(@"Asset: %@", result);
//[assets addObject:result];
if(![assetURLs containsObject:[result valueForProperty:ALAssetPropertyURLs]]) {
if([[result valueForProperty:ALAssetPropertyType] isEqualToString:ALAssetTypeVideo]) {
[assetURLs addObject:[result valueForProperty:ALAssetPropertyURLs]];
[assets addObject:result];
}
}
}
};
void (^assetGroupEnumerator)( ALAssetsGroup *, BOOL *) = ^(ALAssetsGroup *group, BOOL *stop)
{
if(group != nil)
{
[assetGroups addObject:group];
NSLog(@"GROUP: %@", group);
[group enumerateAssetsUsingBlock:assetEnumerator];
}
};
void(^ErrorBlock)(NSError*)=^(NSError *error)
{
NSLog(@"Failure");
};
[library enumerateGroupsWithTypes:ALAssetsGroupAlbum
usingBlock:assetGroupEnumerator
failureBlock: ErrorBlock
];
然后,如下所示初始化MPMoviePlayerViewController对象:
MPMoviePlayerViewController *playerViewController =[[MPMoviePlayerViewController alloc] initWithContentURL:[[[assets objectAtIndex:counter defaultRepresentation] url]]; // counter is incremented to play all videos or set whatever way to play what you want.
关于iphone - 在“照片”中播放相册中的电影,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/10657617/