Question

我总是用语法为电影俱乐部创造更多财产

myMC.myProperty

没有任何声明... 但我只能用这个方法使用电影剪贴板。那么如果我想添加一个属性到按钮或任何不同类型对象上呢? 我需要扩展该类内容吗? 您能让我建议如何使用吗? 非常感谢

Answer 1

You can add property to movieclips in runtime because MovieClip is dynamic class. If the class is not dynamic, you should extend it to create methods and properties. Read about dynamic classes.

Answer 2

I tend to create custom classes for nearly everything.
I would extend the relevant class and set up a private var for your new property. You can then pass in the value to the constructor or add a getter/setter method to call externally.


    private function _myProperty:int;

    public function get myProperty():int
    {
        return _myProperty;
    }

    public function set myProperty(newVal:int):void
    {
        _myProperty = newVal;
    }

Getter/setter methods add a few lines of code that may seem unnecessary but on big projects when you find a property is being set and you don t know why, you can put a break point in your set myProperty

Answer 3

子类是主要解决方案。
Next works only with mx components (flex sdk 3). Most components have data : Object property that you can freely use to store data.
< a href=> "http://www.youtube.com/watch?v=ryAhC1vw8Os" rel="nofollow" >Monkey补丁有时是唯一的出路。它允许您添加自定义属性到弹性 sdk 类中。我不认为您应该使用它。但我用它来改变由 私人 < /em> 所锁定的核心逻辑。

希望这有帮助。

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