Question

我可以使用以下代码录制视频并在我的应用上播放：

- (IBAction)recordVideo:(id)sender {

 if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
{
    UIImagePickerController *picker = [[UIImagePickerController alloc] init];
    picker.delegate = self;
    picker.allowsEditing = YES;
    picker.sourceType = UIImagePickerControllerSourceTypeCamera;
    picker.mediaTypes = [[NSArray alloc] initWithObjects: (NSString *) kUTTypeMovie, nil];

    [self presentViewController:picker animated:YES completion:NULL];
 }
}

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {

    self.videoURL = info[UIImagePickerControllerMediaURL];
    [picker dismissViewControllerAnimated:YES completion:NULL];

   self.videoController = [[MPMoviePlayerController alloc] init];

  [self.videoController setContentURL:self.videoURL];
  [self.videoController.view setFrame:CGRectMake (0, 40, 320, 385)];
  [self.view addSubview:self.videoController.view];

  [self.videoController play];
}

我也知道在播放时可以使用以下方式保存视频：

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {

  NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType];
  if ([mediaType isEqualToString:@"public.movie"]){
    // Saving the video / // Get the new unique filename
  NSString *sourcePath = [[info  objectForKey:@"UIImagePickerControllerMediaURL"]relativePath];
    UISaveVideoAtPathToSavedPhotosAlbum(sourcePath,nil,nil,nil);
}

但我如何使用不同的按钮操作保存视频（例如：“保存视频”）？

Answer 1

完成视频录制或拣选过程后，- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info的{{1}}方法会为您提供视频路径，即临时路径（您的UIImagePickerController字符串实现）。所以，你要做的是，

1）删除sourcePath以避免在录制后立即保存视频;

2）将视频文件复制或移动到另一个路径，可能是应用程序沙箱中的UISaveVideoAtPathToSavedPhotosAlbum(sourcePath,nil,nil,nil);或Documents目录，并存储/保存该路径;

3）当用户点按“保存”按钮时，使用temp将视频保存到照片中（UISaveVideoAtPathToSavedPhotosAlbum(videoPath,nil,nil,nil);是您复制/移动视频文件的路径）。

希望这有帮助！

仅在单击“保存”按钮时保存录制的视频

1 个答案: