iOS清除用户的缓存区

删除文件：

/*

*获取全部的用户的缓存区

*/

NSFileManager*mgr=[NSFileManagerdefaultManager];

NSString*caches=[NSSearchPathForDirectoriesInDomains(NSCachesDirectory,NSUserDomainMask,YES)lastObject];

NSLog(@"caches

%@",caches);

//删除文件擦caches

[mgrremoveItemAtPath:cacheserror:nil];

NSString+Extension.m

-(NSInteger)fileSize{

NSFileManager*mgr=[NSFileManagerdefaultManager];

BOOLdir=NO;

BOOLexist=[mgrfileExistsAtPath:selfisDirectory:&dir];

if(exist==NO) {//文件不存在

return0;

}

if(dir) {//传递路径文件是一个文件夹遍历获取每个文件的大小并拼接起来

NSArray*subPaths=[mgrsubpathsAtPath:self];

//NSLog(@"%@",subPaths);

NSIntegertotalBytesSize=0;

for(NSString*subPathinsubPaths) {//遍历文件路径

NSString*fullPath=[selfstringByAppendingPathComponent:subPath];

BOOLdir2=NO;

[mgrfileExistsAtPath:fullPathisDirectory:&dir2];

//NSLog(@"dir2:%hhd",dir2);

if(dir2==NO) {//是文件拼接大小

totalBytesSize+=[[mgrattributesOfItemAtPath:fullPatherror:nil][NSFileSize]integerValue];

}

}

returntotalBytesSize;

}else{//是一个文件

return[[mgrattributesOfItemAtPath:selferror:nil][NSFileSize]integerValue];

}

}

ImageCache图片

//图片字节大小

intbyteSize = [SDImageCachesharedImageCache].getSize;

//

M大小

doublesize = byteSize / 1000.0 / 1000.0;

self.navigationItem.title= [NSStringstringWithFormat:@"缓存大小(%.1fM)", size];

//清除缓存

[[SDImageCachesharedImageCache]clearDisk];