获取图片名称以及图片路径

ALAssetsLibraryAssetForURLResultBlock resultblock = ^(ALAsset *myasset)  
    {  
        ALAssetRepresentation *representation = [myasset
defaultRepresentation];  
        NSString *fileName = [representation
filename];  
        NSLog(@"fileName : %@",fileName);  
    };  
    
    ALAssetsLibrary* assetslibrary = [[[ALAssetsLibrary
alloc] init] autorelease];  
    [assetslibrary assetForURL:imageURL   
                   resultBlock:resultblock  
                  failureBlock:nil]; 

NSArray *path =
NSSearchPathForDirectoriesInDomains(NSPicturesDirectory,
NSUserDomainMask, YES);
    NSLog(@"path = %@",path);