Flex AIR 键盘事件示例

AIR

<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" applicationComplete="appComplete();"> <mx:TextArea x="10" y="10" id="t1" width="381" height="387"/> <mx:Script> <!--[CDATA[ import flash.events.KeyboardEvent; private function myKeyUp(evt:KeyboardEvent):void{ t1.text+= 'evt.charCode='+evt.charCode + 'evt.keyCode='+ evt.keyCode + 'evt.keyLocation='+ evt.keyLocation + " 弹起\n" } private function myKeyDown(evt:KeyboardEvent):void{ t1.text= 'evt.charCode='+evt.charCode + 'evt.keyCode='+ evt.keyCode + 'evt.keyLocation='+ evt.keyLocation + "按下\n"; } private function appComplete():void{ //this.stage.addEventListener(KeyboardEvent.KEY_UP,myKeyUp); this.stage.addEventListener(KeyboardEvent.KEY_DOWN,myKeyDown); this.stage.addEventListener(KeyboardEvent.KEY_DOWN,myPress); } //下面方法演示每次按下上下左右键头,文本框移动+5像素; private function myPress(evt:KeyboardEvent):void{ if(evt.keyCode==39){ //右 t2.x=t2.x+5; } if(evt.keyCode==38){//上 t2.y=t2.y-5; } if(evt.keyCode==40){//下 t2.y=t2.y+5; } if(evt.keyCode==37){//左 t2.x=t2.x-5; } } ]]--> </mx:Script> <mx:TextInput x="567" y="149" id="t2"/> </mx:Application>