如何从iPhone中的应用程序文档文件夹中保存设备图像库文件夹中的图像？ [英] How to save image in my device image library folder from my app document folder in iPhone?

问题描述

我从网络服务收到一些图片，并将它们存储到我的应用文档文件夹中。现在我在iPhone设备中使用我的应用名称创建了一个图像库。现在。我想在此图像库中显示图像。

I am receiving some image from web-service and store them into my app document folder. Now I have create an image library with my app name in iPhone device. Now. I want to show the images in this image library.

为了保存系统图像，我使用此代码 -

For saving the system image I am using this code -

[self.library1 addAssetURL:url toAlbum:@"My_App_Name" withCompletionBlock:^(NSError *error) {
                if (error!=nil) {
                    NSLog(@"Big error: %@", [error description]);
                }
            }]; 

但是当我获取文档文件夹图像的网址时，这不起作用。帮助我或提供任何解决方案。

but this is not work when I get the url of my document folder image. Help me out or gave any solution.

推荐答案

iOS5 包括<$ c $中的新API c> AssetsLibrary 框架，让您有机会在用户的照片库中管理应用程序自己的相册。

iOS5 includes new API in the AssetsLibrary framework, which afford you the chance to manage your app’s own photo album inside the user’s photo library.

我觉得这很容易peasy。你的应用应该创建一个 UIImage ，只需要将它传递给下面的方法以及专辑名称和要处理的块。

I think it is easy peasy. Your app should create an UIImage and will just need to pass it to the below method along with the album name and a block to handle.

-(void)saveImage:(UIImage*)image
         toAlbum:(NSString*)albumName
withCompletionBlock:(SaveImageCompletion)completionBlock;

您可以看到更多详情 here

You can see more details here

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