DoNotTrackPreference.java 文件源码

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    addPreferencesFromResource(R.xml.do_not_track_preferences);
    getActivity().setTitle(R.string.do_not_track_title);

    ChromeSwitchPreference doNotTrackSwitch =
            (ChromeSwitchPreference) findPreference(PREF_DO_NOT_TRACK_SWITCH);

    boolean isDoNotTrackEnabled = PrefServiceBridge.getInstance().isDoNotTrackEnabled();
    doNotTrackSwitch.setChecked(isDoNotTrackEnabled);

    doNotTrackSwitch.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
        @Override
        public boolean onPreferenceChange(Preference preference, Object newValue) {
            PrefServiceBridge.getInstance().setDoNotTrackEnabled((boolean) newValue);
            return true;
        }
    });
}