actionscript-3 - 如何检测光标何时在 AS3 中变为 I 型梁？

Question

我的 Flash 项目中有一个自定义光标。默认情况下，当您将鼠标悬停在文本字段上时，自定义光标保持可见，并且同时显示 I 型光标和自定义光标。为了避免这种情况，我需要在 I 形光标出现时隐藏我的自定义光标(即当您将鼠标悬停在文本字段上时)。此外，光标始终设置为 MouseCursor.AUTO 状态。那么我怎样才能检测到它何时变为工字梁呢？
提前致谢

Answer 1

这是尝试模仿您想要的东西的东西，它向舞台添加了一个事件监听器，并检测文本字段上是否发生翻转/退出事件并相应地更改光标:

package 
{
    import flash.events.Event;
    import flash.events.MouseEvent;
    import flash.text.TextField;
    import flash.ui.Mouse;
    import flash.ui.MouseCursor;

    public class Main extends Sprite 
    {

        private var textField1:TextField = new TextField();
        private var textField2:TextField = new TextField();

        public function Main():void 
        {
            if (stage) init();
            else addEventListener(Event.ADDED_TO_STAGE, init);
        }

        private function init(e:Event = null):void 
        {
            removeEventListener(Event.ADDED_TO_STAGE, init);
            // entry point

            var loader:Loader = new Loader();
            loader.load(new URLRequest('bg.png'));
            addChild(loader);               

            textField1.text = "Text Field 1";
            textField1.border = true;
            textField1.x = 100;
            addChild(textField1);

            textField2.text = "Text Field 2";
            textField2.border = true;
            textField1.x = 400;
            addChild(textField2);

            Mouse.cursor = MouseCursor.HAND;

            stage.addEventListener(MouseEvent.ROLL_OVER, onRollOver, true);
            stage.addEventListener(MouseEvent.ROLL_OUT, onRollOut, true);
        }

        private function onRollOver(e:MouseEvent):void 
        {
            var tf:TextField = e.target as TextField;
            if (tf)
            {
                Mouse.cursor = MouseCursor.IBEAM;
                //hide your custom cursor here
            }
        }

        private function onRollOut(e:MouseEvent):void 
        {
            var tf:TextField = e.target as TextField;
            if (tf)
            {
                Mouse.cursor = MouseCursor.HAND;
                //show your custom cursor here
            }
        }
    }

}