我已经使用 preferenceActivity 有preference在我的Andr​​oid应用程序。我想要一个preference说preF 2启用时，其他preference说preF 1不是检查和preF 2被禁用时，preF 1被选中。 即完全相反的的android：扶养属性

I have used PreferenceActivity to have preference in my android application. I want one preference say "pref 2" to be enabled when other preference say "pref 1" is NOT checked and "pref 2" to be disabled when "pref 1" is checked. i.e. exactly opposite of the android:dependancy attribute.

我怎么能这样做？

推荐答案

我不认为有任何的即装即用的解决方案，它，即一个倒扶养属性。但总是有点击监听器：

I don't think there's any out-of-the-box solution for it, i.e. an inverted dependancy attribute. But there's always the click-listener:

preference1.setOnPreferenceClickListener(pref1_click);

....

private OnPreferenceClickListener pref1_click = new OnPreferenceClickListener() {
    public boolean onPreferenceClick(Preference preference) {
        preference2.setEnabled(!preference1.isChecked());
        return true;
    }
}