在我的应用程序中,我使用UIImagePickerController来录制视频。然后,我将摄像机卷中的视频URL保存到核心数据中,每当我想要播放它时,我都会拉出URL并这样做。但是,当从照片应用程序中删除视频时,它仍然可以播放几天。如果没有从照片应用程序中删除,则在几天后仍将被删除。如何将视频保存到我的应用程序文档中,并将其URL保存到核心数据中?以下是我目前使用的代码(它不起作用):
这是不起作用的zip文件:http://jmp.sh/v/w4gE5SXNiRd0d7tasc3U 这是现在可以正常工作的zip文件,没有错误:http://jmp.sh/v/tzyJU3nlc1qOPI9ZzDTF
这是不起作用的zip文件:http://jmp.sh/v/w4gE5SXNiRd0d7tasc3U 这是现在可以正常工作的zip文件,没有错误:http://jmp.sh/v/tzyJU3nlc1qOPI9ZzDTF
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType];
// Handle a movie capture
if (CFStringCompare((__bridge_retained CFStringRef)mediaType, kUTTypeMovie, 0) == kCFCompareEqualTo) {
NSString *moviePath = [NSString stringWithFormat:@"%@", [[info objectForKey:UIImagePickerControllerMediaURL] path]];
NSURL *videoURL = [info objectForKey:UIImagePickerControllerMediaURL];
NSData *videoData = [NSData dataWithContentsOfURL:videoURL];
AppDelegate *appDelegate = [[UIApplication sharedApplication] delegate];
_managedObjectContext = [appDelegate managedObjectContext];
Video *video = [NSEntityDescription insertNewObjectForEntityForName:@"Video" inManagedObjectContext:_managedObjectContext];
[video setVideoData:videoData];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
int random = arc4random() % 1000;
//[documentsDirectory stringByAppendingFormat:@"/vid1.mp4"]
NSString *tempPath = [documentsDirectory stringByAppendingPathComponent: [NSString stringWithFormat:@"vid%d%@%@.mp4", random, self.currentAthlete.first, self.currentAthlete.last]];
BOOL success = [videoData writeToFile:tempPath atomically:NO];
if (success == FALSE) {
NSLog(@"Video was not successfully saved.");
}
else{
[video setVideoURL:[NSString stringWithFormat:@"%@", tempPath]];
}
NSError *error = nil;
if (![_managedObjectContext save:&error]) {
}
if (UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(moviePath)) {
UISaveVideoAtPathToSavedPhotosAlbum(moviePath, self,
@selector(video:didFinishSavingWithError:contextInfo:), nil);
}
}
[self dismissViewControllerAnimated:YES completion:nil];
}