src/com/android/car/settings/wifi/details/WifiFrequencyPreferenceController.java

/*
 * Copyright (C) 2017 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.android.car.settings.wifi.details;

import android.car.drivingstate.CarUxRestrictions;
import android.content.Context;

import com.android.car.settings.R;
import com.android.car.settings.common.FragmentController;
import com.android.car.settings.common.Logger;
import com.android.settingslib.wifi.AccessPoint;

/**
 * Shows frequency info about the Wifi connection.
 */
public class WifiFrequencyPreferenceController extends
        WifiDetailsBasePreferenceController<WifiDetailsPreference> {
    private static final Logger LOG = new Logger(WifiFrequencyPreferenceController.class);

    public WifiFrequencyPreferenceController(Context context, String preferenceKey,
            FragmentController fragmentController, CarUxRestrictions uxRestrictions) {
        super(context, preferenceKey, fragmentController, uxRestrictions);
    }

    @Override
    protected Class<WifiDetailsPreference> getPreferenceType() {
        return WifiDetailsPreference.class;
    }

    @Override
    protected void updateState(WifiDetailsPreference preference) {
        int frequency = getWifiInfoProvider().getWifiInfo().getFrequency();
        String band = null;
        if (frequency >= AccessPoint.LOWER_FREQ_24GHZ
                && frequency < AccessPoint.HIGHER_FREQ_24GHZ) {
            band = getContext().getResources().getString(R.string.wifi_band_24ghz);
        } else if (frequency >= AccessPoint.LOWER_FREQ_5GHZ
                && frequency < AccessPoint.HIGHER_FREQ_5GHZ) {
            band = getContext().getResources().getString(R.string.wifi_band_5ghz);
        } else {
            LOG.e("Unexpected frequency " + frequency);
        }
        preference.setDetailText(band);
    }
}