我嘗試在視圖上識別用戶點擊。 我用下面的代碼試了一下:iOS Swift GestureRecognizer無法正常工作
override func viewDidLoad() {
super.viewDidLoad()
let tap = UITapGestureRecognizer(target: self, action: #selector(doubleTapped))
tap.numberOfTapsRequired = 2
view.addGestureRecognizer(tap)
let request = NSURLRequest(URL:URL!)
self.webView.loadRequest(request)
self.webView.delegate = self;
}
func doubleTapped(gesture:UIGestureRecognizer)) {
// do something cool here
print("tabbed")
}
但什麼也沒有發生,方法doubleTapped永遠不會被調用。這裏有什麼問題?
請問http://stackoverflow.com/q/6475908/6309有幫助嗎? – VonC