在iPhone中的UIImagepickercontroller委托中显示视频预览时调用什么方法

Question

hello all I am working an app that automatically records a video. its does not showing preview of a video since I hidden the Cameracontrols . I want to know the method that calling the preview view.. Could anyone help me.. Thanks

Update

UIImagePickerController *vpicker; // in .h 

// place the below  code whr u want to satrt video 
vpicker=[[UIImagePickerController alloc]init];
vpicker.delegate=self;
vpicker.sourceType=UIImagePickerControllerSourceTypeCamera;
vpicker.mediaTypes=[NSArray arrayWithObject:(NSString *)kUTTypeMovie];
vpicker.showsCameraControls=NO;
vpicker.cameraCaptureMode=UIImagePickerControllerCameraCaptureModeVideo;
BOOL test=[vpicker startVideoCapture];
NSLog(@"test value %d",test);
if(test)
{ 
  NSLog(@"vedio started");
  [NSTimer scheduledTimerWithTimeInterval:10.0f target:self selector:@selector(stop) userInfo:nil repeats:NO]; 
 }
 else 
 {
   NSLog(@"sorry vedio not started to stop it ...");
 }


// in stop method 
[vpicker stopVideoCapture];
vpicker.showsCameraControls=YES;

Answer 1

MPMoviePlayerController用于显示视频，而不是UIImagePickerViewController