- 通常用于删除缓存的时,计算缓存大小
- //单个文件的大小
- -
- (long
- long)
- fileSizeAtPath:(NSString*) filePath{
- NSFileManager*
- manager = [NSFileManager defaultManager];
- if
- ([manager fileExistsAtPath:filePath]){
- return
- [[manager attributesOfItemAtPath:filePath error:nil] fileSize];
- }
- return
- 0;
- }
- //遍历文件夹获得文件夹大小,返回多少M
- -
- (float
- ) folderSizeAtPath:(NSString*) folderPath{
- NSFileManager*
- manager = [NSFileManager defaultManager];
- if
- (![manager fileExistsAtPath:folderPath]) return
- 0;
- NSEnumerator
- *childFilesEnumerator = [[manager subpathsAtPath:folderPath] objectEnumerator];
- NSString*
- fileName;
- long
- long
- folderSize = 0;
- while
- ((fileName = [childFilesEnumerator nextObject]) != nil){
- NSString*
- fileAbsolutePath = [folderPath stringByAppendingPathComponent:fileName];
- folderSize
- += [self fileSizeAtPath:fileAbsolutePath];
- }
- return
- folderSize/(1024.0*1024.0);
- }
来源: http://www.phpxs.com/code/1005578/