IOS 缓存大小计算

NSString*cachPath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory,NSUserDomainMask,YES)objectAtIndex:0];

[selffolderSizeAtPath:cachPath]afterPoint:2]];

///计算缓存文件的大小的M

- (longlong) fileSizeAtPath:(NSString*) filePath{

NSFileManager* manager = [NSFileManagerdefaultManager];

if([managerfileExistsAtPath:filePath]){

return[[managerattributesOfItemAtPath:filePatherror:nil]fileSize];

}

return0;

}

- (float) folderSizeAtPath:(NSString*) folderPath{

NSFileManager* manager = [NSFileManagerdefaultManager];

if(![managerfileExistsAtPath:folderPath])return0;

NSEnumerator*childFilesEnumerator = [[managersubpathsAtPath:folderPath]objectEnumerator];//从前向后枚举器／／／／//

NSString* fileName;

longlongfolderSize =0;

while((fileName = [childFilesEnumeratornextObject]) !=nil){

NSLog(@"fileName ==== %@",fileName);

NSString* fileAbsolutePath = [folderPathstringByAppendingPathComponent:fileName];

NSLog(@"fileAbsolutePath ==== %@",fileAbsolutePath);

folderSize += [selffileSizeAtPath:fileAbsolutePath];

}

NSLog(@"folderSize ==== %lld",folderSize);

returnfolderSize/(1024.0*1024.0);

}