Show camera shutter programmatically?

In order to make my custom UIImagePickerSourceTypeCamera, I had to do this:

pickerOne = [[UIImagePickerController alloc] init];
pickerOne.delegate = self;
pickerOne.sourceType = UIImagePickerControllerSourceTypeCamera;
pickerOne.showsCamera开发者_JAVA技巧Controls = NO;
pickerOne.navigationBarHidden = YES;
pickerOne.toolbarHidden = YES;
pickerOne.wantsFullScreenLayout = YES;

But now, when I take a picture like this:

[cameraButton addTarget:pickerOne 
                 action:@selector(takePicture)
       forControlEvents:UIControlEventTouchUpInside];

it doesn't show the shutter when you take the picture. Is there a way to show it programmatically?

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It is possible. The trick is to do the following:

Enable the camera controls on initializing the picker (this will enable the shutter view).

pickerOne.showsCameraControls = YES;

Overlay the camera controls with your own view which has the cameraButton

In your takePicture: method do the following:

pickerOne.showsCameraControls = NO;
[[NSRunLoop currentRunLoop] runUntilDate:[NSDate dateWithTimeIntervalSinceNow:0.0]];
[pickerOne takePicture];

In the imagePickerController:didFinishPickingMediaWithInfo: method do the following:

pickerOne.showsCameraControls = YES;  // perform on main thread

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There is no way to control the "shutter" affect. You can however create your own image and add the affect in there.