Question

目前我正在使用扩展列表中孩子的自定义版式, 其中包括两个不同的文本视图和一个图像视图。而且它每次总是有一个孩子。我可以在适配器中找到点击听筒, 但无法在活动中得到这个。

我也尝试在“ChildClick”(ChildClick ())方法上获得点击听众活动,

我在不同的活动中使用这个适配器, 所以我想让点击的听众在活动本身的文字视图中看到一个文字视图。

请提出任何建议。

Answer 1

在布局文件中添加了 and mid: onClick="textClickHandler" & gt; , 并将以下的听众纳入我的活动:

public void textClickHandler(View view){

        if(view.getId() == R.id.textMore){
            Toast.makeText(mContext, "More Text Clicked.", Toast.LENGTH_LONG).show();
        }
    }

Answer 2

您无法设置 View 上的听众, 即 activity (如果我能理解您想要做什么的话)。一种方法是:

make your adapter have a boolean value that you set when you instantiate the adapter(This will tell you if the adapter belongs to an Activity where the TextView should have a listener(for true, for example). If the value is false then you ll make sure not to set a listener on the TextView).
set the the listener on the desired TextView(only if the previous value was true, for other activities you ll simple ignore this part) in the getChildView method of your custom adapter.
in the onClick method for that view s OnCLickListener use the Context that you pass in the constructor of your custom adapter. Cast it to the desired activity and use it as you want. A more elegant way of doing this would be to let the desired Activity implement a custom interface(to notify you when the TextView was clicked). Then in the adapter make a field with the type of that interface that you ll set to point to your Activity when you instantiate the listener. When the TextView is clicked call the methods of that field above and notify the Activity that something happen and it should do some stuff.

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