SDWebImage 获取缓存大小

//获取缓存的大小

NSUInteger intg = [[SDImageCache sharedImageCache] getSize];

//

NSString * currentVolum = [NSString stringWithFormat:@"%@",[self fileSizeWithInterge:intg]];

//计算出大小

- (NSString *)fileSizeWithInterge:(NSInteger)size{

// 1k = 1024, 1m = 1024k

if (size < 1024) {// 小于1k

return [NSString stringWithFormat:@"%ldB",(long)size];

}else if (size < 1024 * 1024){// 小于1m

CGFloat aFloat = size/1024;

return [NSString stringWithFormat:@"%.0fK",aFloat];

}else if (size < 1024 * 1024 * 1024){// 小于1G

CGFloat aFloat = size/(1024 * 1024);

return [NSString stringWithFormat:@"%.1fM",aFloat];

}else{

CGFloat aFloat = size/(1024*1024*1024);

return [NSString stringWithFormat:@"%.1fG",aFloat];

}

}