定義一個按鈕 點擊按鈕，將self.imageView上面的image內容保存到本地相冊，并指定判斷保存成功與否的方法imageSavedToPhotosAlbum:didFinishSavingWithError:contextInfo: ~~~ -(IBAction)saveImageToAlbum:(id)sender { ????UIImageWriteToSavedPhotosAlbum(self.imageView.image,?self,?@selector(imageSavedToPhotosAlbum:didFinishSavingWithError:contextInfo:),?nil); } ~~~ 實現imageSavedToPhotosAlbum:didFinishSavingWithError:contextInfo:方法 ~~~ - (void)imageSavedToPhotosAlbum:(UIImage?*)image didFinishSavingWithError:(NSError?*)error contextInfo:(void?*)contextInfo { ????NSString?*message =?@"呵呵"; ????if?(!error) { ??????? message =?@"成功保存到相冊"; ??? }else ??? { ??????? message = [error?description]; ??? } ????NSLog(@"message is %@",message); } ~~~ 這些代碼很簡單，如果沒有錯誤的話就提示“成功保存到相冊”，如果保存失敗的話，那么就輸出錯誤信息[error description]。