计算ios沙盒中的文件大小

 [代码]计算缓存大小 沙盒下得文件    跳至 [1] [全屏预览]

-( float )fileSizeForDir:( NSString *)path //计算文件夹下文件的总大小
{

    NSFileManager *fileManager = [[ NSFileManager alloc] init];
    float size =0;
    NSArray * array = [fileManager contentsOfDirectoryAtPath:path error: nil ];
    for ( int i = 0; i<[array count]; i++)
    {
        NSString *fullPath = [path stringByAppendingPathComponent:[array objectAtIndex:i]];

        BOOL isDir;
        if ( !([fileManager fileExistsAtPath:fullPath isDirectory:&isDir] && isDir) )
        {
            NSDictionary *fileAttributeDic=[fileManager attributesOfItemAtPath:fullPath error: nil ];
            size+= fileAttributeDic.fileSize/ 1024.0/1024.0;
        }
        else
        {
            [ self fileSizeForDir:fullPath];
        }
    }
    han = han + size;
    return size;
}