How to implement the drag drop option in iphone sdk in single view?

Actually i am writing a code for drag and drop option for quiz in objective-c.Basically it will jumble the letters with images and the user has to drag and drop the images and set th开发者_如何学Goe correct word how to do this?can u please any one send a sample for this .thanks in advance..

You will find lot of samples if you search for drag and drop images. few of them are this and this. Other part, correct word is set or not you need to apply your logic in that.