Save the Photo to Album

Today is a day need to remember.That is I have been in trouble about how to save a photo in iPhone's album.

I used the method "UIImageWriteToSavedPhotosAlbum()" to deal with it,but also it will crash,I don't know why and debug half a day,because the crash location directly in main(),so we are hard to get the bug.

And when i use the method "writeImageToSavedPhotosAlbum:orientation:completionBlock:" to do, no crash, not any bug.So how is it?

Finally,I found the reason in the document:

"

// Adds a photo to the saved photos album.  The optional completionSelector should have the form:

//  - (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo;

UIKIT_EXTERN void UIImageWriteToSavedPhotosAlbum(UIImage *image, id completionTarget, SEL completionSelector, void *contextInfo);

"

Oh,God!My completeHandler is wrong formation. Holy shit!

Blues