手势-webview与scrollView重复手势处理

// called when the recognition of one of gestureRecognizer or otherGestureRecognizer would be blocked by the other

// return YES to allow both to recognize simultaneously. the default implementation returns NO (by default no two gestures can be recognized simultaneously)

意思是说，返回yes的话，允许二者同时处理手势交互，（假如是webview的话，可以用添加个单击手势，但不会影响，webview的滚动手势），返回NO,不接受外部手势

//

// note: returning YES is guaranteed to allow simultaneous recognition. returning NO is not guaranteed to prevent simultaneous recognition, as the other gesture's delegate may return YES

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

 

//**例子

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NSURL *url = [NSURL URLWithString:urlArray[idx]];               NSURLRequest *request = [NSURLRequest requestWithURL:url];               [webView loadRequest:request];               webView.userInteractionEnabled = YES;                               UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleWebView:)];                               singleTap.delegate= self;                               singleTap.cancelsTouchesInView =NO;                               [webView addGestureRecognizer:singleTap]; <br><br>- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer{<br>return  Yes; //返回yes,webView上的手势起作用。<br>return No ;返回No,或不调用这个方法webview上的手势不起作用。<br>}<br>