雙擊UIwebview到全屏

Question

我想雙擊一個UIwebview的大小爲（159,182）我想將其擴展到全屏大小（它涵蓋了整個屏幕）我也希望它能夠雙倍再次點擊完整的網頁視圖，然後使其達到正常大小（159,182）這可能嗎？

Answer 1

添加一個UITapGestureRecognizer它。 In viewDidLoad：

UITapGestureRecognizer *doubleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(doubleTap)]; 
doubleTap.numberOfTapsRequired = 2; 
doubleTap.delegate = self; 
[webView addGestureRecognizer:doubleTap]; 

不要忘了添加UIGestureRecognizerDelegate到你的頭文件。

移除viewDidUnload中的UITapGestureRecognizer。

而且添加這個方法

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer { 
    return YES; 
} 

然後實現在

- (void)doubleTap 
{ 
    ... 
}