You will notice in the iOS Photos app, when you tap a image, the right bar button item is edit, when you tap the edit, the image editor appears. I am wondering is there any API that I can implement so I can present this editor view controller in my code?
Of course you should present an UIImagePickerViewController an then set allowsEditing value true to present a editor after select the photo
Then with the UIImagePickerDelegate protocol you will be able to get the edited picture