iOS is forbidden to slide back

- (void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];
    //禁用右滑返回
    self.navigationController.interactivePopGestureRecognizer.enabled = NO;
}

- (void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];
    //恢复右滑返回
    self.navigationController.interactivePopGestureRecognizer.enabled = YES;
}