UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(anserWebViewHide)];

        

        tap.delegate = self;

        

        [_webView addGestureRecognizer:tap];

 

 

 

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer

{

    return YES;

}

 要实现tap的代理