Preference

Preference的用法：
step1:自定Fragment片段

public class SettingsFragment extends PreferenceFragment {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // Load the preferences from an XML resource
        addPreferencesFromResource(R.xml.preference);
    }
}

step2:Activity 中调用Fragment

public class SettingPreferenceActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_preference);
        getFragmentManager().beginTransaction()
                .replace(R.id.fm_pref, new SettingsFragment()).commit();
    }
}

step3:填充布局