如何处理Android SimpleExpandableListAdapter条目选择 [英] How to handle Android SimpleExpandableListAdapter entry selection

问题描述

我已经在我的Android应用程序中使用SimpleExpandableListAdapter类型创建了可扩展列表。
但是，当我选择/点击其中一个子条目时，我如何检测到事件，我完全失望。

I have created an expandable list in my Android application using the SimpleExpandableListAdapter type. But I'm at a complete loss as to how I detect events when one of the child entries has been selected/clicked.

我已经尝试过通常的OnClickListener / OnChildClickListener等，但似乎找不到（通过实验，或半小时的谷歌搜索）正确的处理程序例程应该是什么。

I've tried all the usual OnClickListener/OnChildClickListener etc, but can't seem to find (by experimentation, or half an hour googling) what the correct handler routines should be.

推荐答案

应该是：

list.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {
    public void onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) {
        Object o = (Object)adapter.getChild(groupPosition, childPosition);
        // perform work on child object here
    }
}  

虽然这听起来像是你尝试过的... ExpandableListView.OnChildClickListener 说，事实上是这样做的。

Though, it sounds like you tried this... ExpandableListView.OnChildClickListener says that it is, in fact, the way to do it.

另外，你是否定义了allItemsAreEnabled（）和/或isEnabled（）为您的ListAdapter？你不应该，但也许他们当前被定义并返回错误的值？

Also, have you defined the methods allItemsAreEnabled() and/or isEnabled() for your ListAdapter? You shouldn't have to, but maybe they are currently defined and returning the wrong values?

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