PreferenceFragment.java 文件源码

/**
 * {@inheritDoc}
 */
public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen,
        Preference preference) {
    //if (preference.getFragment() != null &&
    if (
            getActivity() instanceof OnPreferenceStartFragmentCallback) {
        return ((OnPreferenceStartFragmentCallback)getActivity()).onPreferenceStartFragment(
                this, preference);
    }
    return false;
}