//获取硬盘大小+ (CGFloat)getDiskSize{    NSString *libPath = [NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES) objectAtIndex:0];    NSLog(@"%@", libPath);    // 初始化文件管理者    NSFileManager *manager = [NSFileManager defaultManager];    // 获取lib下所有路径    NSArray *libAllPath = [manager subpathsAtPath:libPath];    NSInteger size = 0;    for (NSString *path in libAllPath) {        if (![path containsString:@"Preferences"]) {            //把路径拼接全            NSString *pathA = [libPath stringByAppendingPathComponent:path];            //获取文件的所有信息            NSDictionary *fileAttri = [manager attributesOfItemAtPath:pathA error:nil];            //获取文件大小            size += [fileAttri[@"NSFileSize"] integerValue];        }    }    return size/1024.0/1024.0;}

//清除缓存+ (void)clearDisk{    NSString *libPath = NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES)[0];    //初始化文件管理者    NSFileManager *mgr = [NSFileManager defaultManager];    //获取lib下所有路径    NSArray *libAllPath = [mgr subpathsAtPath:libPath];        for (NSString *path in libAllPath) {        if (![path containsString:@"Preferences"]) {            //把路径拼接全            NSString *pathA = [libPath stringByAppendingPathComponent:path];            //移除文件            [mgr removeItemAtPath:pathA error:nil];        }    }}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{    static NSString *CellIdentifier = @"Cell";    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell"];    if (cell == nil) {        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier];    }    switch (indexPath.row) {        case 0:            cell.textLabel.text = @"活动收藏";            break;        case 1:            cell.textLabel.text = @"电影收藏";            break;        case 2:        {            cell.textLabel.text = @"清除缓存";            NSString *size = [NSString stringWithFormat:@"%.2fM",[ClearDiskManager getDiskSize]];            cell.detailTextLabel.text = size;            break;        }        default:            break;    }        cell.backgroundColor = [UIColor cyanColor];        return cell;}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{    switch (indexPath.row) {        case 1:        {            ListTableViewController *listVC = [[ListTableViewController alloc] init];            [self.navigationController pushViewController:listVC animated:YES];        break;        }        case 0:        {           ActivityTableViewController *activityVC = [[ActivityTableViewController alloc] init];            [self.navigationController pushViewController:activityVC animated:YES];            break;        }        case 2:        {            UIAlertController *alerController = [UIAlertController alertControllerWithTitle:@"提示" message:@"清除缓存之后可能耗费一点你的流量" preferredStyle:UIAlertControllerStyleAlert];            UIAlertAction *action = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {                [self dismissViewControllerAnimated:YES completion:nil];            }];            UIAlertAction *action1 = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {                [ClearDiskManager clearDisk];                [self.tableView reloadData];            }];            [alerController addAction:action];            [alerController addAction:action1];            [self presentViewController:alerController animated:YES completion:nil];        }        default:            break;    }}