Question

我在KeyboardEvent上有一个带有侦听器的WindowedApplication（在ENTER键上），但是当用户选择使用颜色选择器并键入十六进制代码然后按Enter时，事件也被提供给我的WindowedApplication。我必须停止传播。任何提示或片段？谢谢 P上。

Answer 1

<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009" 
        xmlns:s="library://ns.adobe.com/flex/spark" 
        xmlns:mx="library://ns.adobe.com/flex/mx" 
        keyDown="appHandler(event)">
 <fx:Script>
  <![CDATA[
   import mx.controls.Alert;
   import mx.events.FlexEvent;

   private function appHandler(event:KeyboardEvent):void
   {
    trace('A key has been pressed inside the app');
   }

   private function cpHandler(event:KeyboardEvent):void
   {
    trace('A key has been pressed inside the color picker');
    event.stopPropagation();
   }

  ]]>
 </fx:Script>

 <mx:ColorPicker x="159" y="137" id="cp" keyDown="cpHandler(event)"/>
 <s:TextInput x="233" y="137"/>

</s:WindowedApplication>

Answer 2

这是TitleWindow代码的一部分，其中cp是ColorPicker。

...

public function init（）：void {cp.addEventListener（ColorPickerEvent.ENTER，handler）; }

public function handler（e：ColorPickerEvent）：void { e.stopImmediatePropagation（）; }

public function changeColor（e：ColorPickerEvent）：void { Application.application.couleur = cp.selectedColor; PopUpManager.removePopUp（本）; } ...

这是来自我的主要mxml：

... employeeList.addEventListener（KeyboardEvent.KEY_UP，enterListener）; ...

私有函数enterListener（e：KeyboardEvent）：void {
if（e.keyCode == Keyboard.ENTER）{
    if（employeeList.selectedItem）{
        showDetail（employeeList.selectedItem as Employee）;
    }
}
}

Flex：stopPropagation事件Keyboard.ENTER的颜色选择器

2 个答案: