与XP登录界面类似,在Flex 3中,如何在启用了CAPS LOCK键的文本框中向用户显示警告?
答案 0 :(得分:5)
flash.ui.Keyboard.capsLock不可绑定,因此代码无法正常工作。
我会在TextInput的“keyDown”事件中调用一个函数,然后检查该函数中的flash.ui.Keyboard.capsLock。然后,您可以在该文本上设置visible / includeInLayout,弹出警报等...
答案 1 :(得分:3)
试试这个
private function addHandler():void{
//Called from app's creation complete event.
//Listener to handle any keyboard KEY_DOWN event:
this.addEventListener(KeyboardEvent.KEY_DOWN,handleKeyDown);
}
private function handleKeyDown(event:KeyboardEvent):void{
if (Keyboard.capsLock){
lblCaps.visible =true;
} else {
lblCaps.visible =false;
}
}
在创建完成时调用addHandler
答案 2 :(得分:1)
在actionScript中:
if(flash.ui.Keyboard.capsLock){
// caps lock is on...
}
或MXML:
<mx:Box width="100%" id="capsbox"
visible="{flash.ui.Keyboard.capsLock}"
includeInLayout="{capsbox.visible}">
<mx:Text text="Caps Lock is on." color="red" />
</mx:Box>