Tag: pan

快速平移手势

首先将greenview拉入画面中,并设定好自动布局 接下来搜寻Pan Gesture Recognizer拉入greenView里面 我们先设定全域变数 var lastLocation = CGPoint(x:0,y:0) 随后将潘手势拉入程式码里产生IB动作 @IBAction func panAction(_发送者:UIPanGestureRecognizer){ 如果sender.state == .be { lastLocation = greenView.center }否则,如果sender.state == .changed { 让翻译= sender.translation(in:greenView) greenView.center = CGPoint(x:lastLocation.x + translation.x ,y:lastLocation.y + translation.y) } } 使用程式码产生 先设定要对应的方法

delphiiOS和平移手势 – 距离始终为零

我有这个(现在工作)的代码基于我拾起各地的位: procedure TFormMain.imgMapsGesture(Sender: TObject; const EventInfo: TGestureEventInfo; var Handled: Boolean); var LObj: IControl; LImage: TImage; W: Single; H: Single; begin LImage := nil; LObj := Self.ObjectAtPoint(ClientToScreen(EventInfo.Location)); if (LObj is TImage) and (LObj.Visible) then begin LImage := TImage(LObj.GetObject); if (LImage <> imgMaps) then LImage := nil ; end ; if LImage = nil then Exit ; […]