iOS中获取相册中图片的文件名

原文地址：http://blog.liming.it/?p=90

第一步：给项目的 TARGETS -> Build Phases -> Link Binary With Libraries 增加框架链接 AssetsLibrary.Framework

第二步：文件中引入：

#import <AssetsLibrary/AssetsLibrary.h>

第三步：相册选择图片的回调方法 imagePickerController:didFinishPickingMediaWithInfo: 中，增加如下代码：

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info;

{

// get the ref url

NSURL *refURL = [info valueForKey:UIImagePickerControllerReferenceURL];

// define the block to call when we get the asset based on the url (below)

ALAssetsLibraryAssetForURLResultBlock resultblock = ^(ALAsset *imageAsset)

{

ALAssetRepresentation *imageRep = [imageAsset defaultRepresentation];

NSLog(@"[imageRep filename] : %@", [imageRep filename]);

};

// get the asset library and fetch the asset based on the ref url (pass in block above)

ALAssetsLibrary* assetslibrary = [[ALAssetsLibrary alloc] init];

[assetslibrary assetForURL:refURL resultBlock:resultblock failureBlock:nil];

...

}

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