iphone - 我的应用程序如何保存和打开 iPhone 照片库中的照片？

Question

如何通过我的应用保存和打开 iPhone 照片库中的照片？代码会很有帮助。

Answer 1

这允许您将图像保存到相册:

// 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);

(示例代码:)

IImageWriteToSavedPhotosAlbum( image, self, @selector(image:didFinishSavingWithError:contextInfo:), nil );  


/// called function, alerts user when the image has been saved:

- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo {
    [ [ self parentViewController ] dismissModalViewControllerAnimated: YES];   
}