iOS - how to implement crop image like default photo album?

Question

The default crop function in iPhone photo album

Does any one know how to i

Answer 1

If I understand your question correctly, you want to present a UIImagePickerController with the ability to crop the picture before picking it. This is built-in into UIImagePickerController, just set the allowsEditing property to YES. See the documentation for more info http://developer.apple.com/library/ios/#documentation/uikit/reference/UIImagePickerController_Class/UIImagePickerController/UIImagePickerController.html.