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ExpandableListViewにチェックボックスを埋め込んだ場合のonChildClick

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開閉可能なリストのアイテムにチェックボックスを埋め込んで、リストタッチ時にイベントを発生させようとして、

ExpandableListView v;
v.setOnChildClickListener(new OnChildClickListener(){
            @Override
            public boolean onChildClick( // 省略

のようなことをやろうとしても、イベントが拾えない。
どうもチェックボックスにフォーカスを当てる動作が優先されているようで、以下の設定をすればonChildClickイベントが発生するようになる。

    <CheckBox
        ...
        android:focusable="false"
        android:focusableInTouchMode="false"
        ...
    />
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