iOS 清除缓存

Posted 2020-07-09 fantasy3588

- （void）clearDisk

{

            NSArray *paths = NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES);

            NSString *path = [paths lastObject];

            

            NSString *str = [NSString stringWithFormat:@"缓存已清除：%.1fM",[self folderSizeAtPath:path]];

            NSArray *files = [[NSFileManager defaultManager] subpathsAtPath:path];

            for (NSString *p in files) {

                NSError *error;

                NSString *Path = [path stringByAppendingPathComponent:p];

                if ([[NSFileManager defaultManager] fileExistsAtPath:Path]) {

                    [[NSFileManager defaultManager] removeItemAtPath:Path error:&error];

                }

            }

            [PFTool alertWithTitle:@"温馨提示" message:str button:0 done:nil];

}

- (float ) folderSizeAtPath:(NSString*) folderPath

{

    NSFileManager *manager = [NSFileManager defaultManager];

    if (![manager isExecutableFileAtPath: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);

 

}

 

- (long long) fileSizeAtPath:(NSString*) filePath

{

    NSFileManager* manager = [NSFileManager defaultManager];

    if ([manager fileExistsAtPath:filePath]){

        return [[manager attributesOfItemAtPath:filePath error:nil] fileSize];

    }

    return 0;

}