How to make Collage of Images and save image to Photo Gallery

Question

I am new to Image editing and i am working on a Collage Tool which can add images according to different collage shapes and make them one image and save it to Photo gallery.. I have seen the following links but i cant achieve what i want..

Collage of images with different shapes and How to make collage of images according to different shapes

Answer 1

See this question to get a headstart. Basically I use some CG calls and CGRects to arrange a series of images into a photo collage. To save to the photo library, just do a search on SO for that topic or try using UIImageWriteToSavedPhotosAlbum function. Read the quick help or the full documentation in Xcode to get tips on how to use the class. You can also Cmd-click on any type to read Apple's detailed comments on how to use specific classes in their APIs.