收到错误类型1061：通过静态类型的引用调用可能未定义的方法的addEventListener [英] Getting error Type 1061: Call to a possibly undefined method addEventListener through a reference with static type

问题描述

我把从我的应用我的code到一个单独的AS类文件，现在我得到了以下错误：

  1061：通过静态类型类引用调用可能未定义的方法的addEventListener。

1180：调用可能未定义的方法的addEventListener。
 

 包管理器{


    进口对象类型：flash.events.Event;
    进口flash.events.EventDispatcher使用;

    公共类RemoteManager扩展EventDispatcher {


        公共职能RemoteManager（）{

        }


        公共静态函数的init（clearCache：布尔= FALSE）：无效{

            的addEventListener（SETTINGS_CHANGE，settingChangeHandler）;
            的addEventListener（ITEMS_UPDATED，itemsUpdatedHandler）;
        }
    }
}
 

解决方案

您code

 的addEventListener（SETTINGS_CHANGE，settingChangeHandler）;
 

的计算结果为

  this.addEventListener（SETTINGS_CHANGE，settingChangeHandler）;
 

没有这的静态方法，因为它的设计没有一个实例运行。此外，你不能从一个静态类附加一个事件侦听器，并调度事件。

要么改变你的函数声明为

 公共职能的init（clearCache：布尔=假）：无效
 

或实现一个单例模式来还挺获得的静态类，即调度事件的。

辛格尔顿与事件管理。

I moved my code from my Application to a separate AS class file and now I'm getting the following errors:

1061: Call to a possibly undefined method addEventListener through a reference with static type Class.

1180: Call to a possibly undefined method addEventListener.

.

package managers {


    import flash.events.Event;
    import flash.events.EventDispatcher;

    public class RemoteManager extends EventDispatcher {


        public function RemoteManager() {

        }


        public static function init(clearCache:Boolean = false):void {

            addEventListener(SETTINGS_CHANGE, settingChangeHandler);
            addEventListener(ITEMS_UPDATED, itemsUpdatedHandler);
        }
    }
}

解决方案

Your code

addEventListener(SETTINGS_CHANGE, settingChangeHandler);

evaluates to

this.addEventListener(SETTINGS_CHANGE, settingChangeHandler);

There is no this in a static method, since it's designed to function without an instance. Furthermore, you cannot attach an event listener and dispatch events from a static class.

Either change your function declaration to

public function init(clearCache:Boolean = false):void

Or implement a singleton pattern to kinda get a "static class, that dispatches events".

Singleton with event management.

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