键盘/文本框的帮助下互动，请 [英] interaction with keyboard/textfields help please

问题描述

通常为一个字符串对象转换如下：

Normally for a string to object is converted as follows.

var obj:object=getChildByName("string");

和我们可以给属性像 obj.x = 100; 但是，在一系列蜇伤的情况下

And we can give properties to it like obj.x=100;But in the case of a series of stings

[objet Stage].[object MainTimeline].[object TextField]

该宏将会不works.Actually我需要给物业一个目标路径是一个字符串 我做的事？？ 这里是code得到路径一个影片剪辑：的

it wil not works.Actually i need to give properties to a target path which is a string what i do?? Here is the code to get path to a movieclip:

 addEventListener(MouseEvent.CLICK, targetMC);
function targetMC(MouseEvent:Event):void
{
 var curinstance = MouseEvent.target.valueOf();
 var targ:Object = curinstance.parent;
 var path = curinstance;
 do
 {
  if (targ == "[object Stage]")
  {
   path = targ + "." + path;
  }
  else
  {

   path = targ + "." + path;
  }

  targ = targ.parent;
 } while (targ);


 trace(path);

}

我想给属性路径

推荐答案

许多事情是尴尬的你code：

A number of things are awkward about your code:

1. 不要比较对象的字符串值，以了解类的类型。使用是关键字：

if (obj.parent is Stage) doSomething();

不要使用类名作为参数名称：！的MouseEvent是一种

Don't use class names as parameter names: MouseEvent is a type!

function targetMC ( ev:MouseEvent ) // ...more code

它根据在调用它们的事件是非常有用的名字处理方法，例如：

It is useful to name handler methods according to the event upon which they are invoked, for example:

function onMouseClick (ev:MouseEvent) 

或

function mouseClickHandler (ev:MouseEvent) 

如果你能避免它，不要转换为对象来访问成员，但尝试使用子类型 - 它可以让编译器能够更有效地检查您的code错误。由于显示列表中的所有对象均的DisplayObject 的情况下，你可以使用这样的：

If you can avoid it, don't cast to Object to access members, but try to use subclass types - it allows the compiler to more effectively check your code for errors. Since all objects in the display list are instances of DisplayObject, you could use this:

var obj:DisplayObject = ev.target as DisplayObject;

如果要输出的路径，你的对象，用实例名称，而不是类型 - ！你可能有多个文本字段

If you want to output a path to your object, use instance names instead of types - you might have more than one TextField!

private function getObjectPath (obj:DisplayObject) : String {
    var path:String = obj.name;
    if (obj.parent != null && !(obj.parent is Stage)) {
        path = getObjectPath (obj.parent) + "." + path;
    }
    return path;
}

现在你的答案：使用的KeyboardEvent

Now for your answer: Use the KeyboardEvent.

textField.addEventListener (KeyboardEvent.KEY_UP, onKeyUp);

和

private function onKeyUp (ev:KeyboardEvent) : void {
    var tf:TextField = ev.target as TextField;
    var text:String = tf.text;
    tf.text = text + String.fromCharCode(charCode);
} 

请注意，这只会只要文本字段有焦点的工作，那就是用户必须先点击它。

Note that this will only work as long as the TextField has focus, that is the user has to click it first.

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