UIImagePickerController got white screen after returning from a UIViewController

Here is the situation:

After taking a picture from

[UIImagePickerController takePicture];

The following delegate function :

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

will be called.

Th开发者_开发百科e code inside is

NSLog(@"Photo taken");
UIImage *newImage = [self resizeImage:[info objectForKey:UIImagePickerControllerOriginalImage]];
NSLog(@"Width: %d, Height: %d ",(int)newImage.size.width, (int)newImage.size.height);
//[imagePickerController dismissModalViewControllerAnimated:YES];
ProcessCompleteView *pcv = [[ProcessCompleteView alloc] initWithNibName:@"ProcessCompleteView" bundle:nil];
[imagePickerController presentModalViewController:pcv animated:YES];
[pcv release];

I've called another view to display sth and when I return back from pcv using dismissModalViewController, the area which should display the camera's real-time capture turns white. However, when I dismiss the UIImagePickerController and present it again, the camera works fine!

Anyone can help me on this strange issue??

Thanks.

---

The order to show view is incorrect.

The correct order is: parent controller's view show -> UIImagePickerController's view show -> UIImagePickerController's view hidden -> ProcessCompleteView show

So, please remove

ProcessCompleteView *pcv = [[ProcessCompleteView alloc] initWithNibName:@"ProcessCompleteView" bundle:nil];
[imagePickerController presentModalViewController:pcv animated:YES];
[pcv release];

into parent controller's viewWillAppear method, and call

ProcessCompleteView *pcv = [[ProcessCompleteView alloc] initWithNibName:@"ProcessCompleteView" bundle:nil];
[parentController presentModalViewController:pcv animated:YES];
[pcv release];