src/com/android/settings/location/LocationServicesWifiScanningPreferenceController.java

/*
 * Copyright 2021 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.settings.location;

import android.content.Context;
import android.net.wifi.WifiManager;
import android.os.UserManager;

import androidx.preference.Preference;

import com.android.settings.R;
import com.android.settings.core.BasePreferenceController;
import com.android.settingslib.RestrictedPreference;

/**
 * Preference controller for Wi-Fi scanning in Location Services.
 */
public class LocationServicesWifiScanningPreferenceController extends BasePreferenceController {

    private final WifiManager mWifiManager;

    public LocationServicesWifiScanningPreferenceController(Context context, String key) {
        super(context, key);
        mWifiManager = context.getSystemService(WifiManager.class);
    }

    @Override
    public void updateState(Preference preference) {
        ((RestrictedPreference) preference).checkRestrictionAndSetDisabled(
                UserManager.DISALLOW_CONFIG_LOCATION);
        refreshSummary(preference);
    }

    @Override
    public CharSequence getSummary() {
        final boolean wifiScanOn = mWifiManager.isScanAlwaysAvailable();
        int resId =
                wifiScanOn ? R.string.scanning_status_text_on : R.string.scanning_status_text_off;
        return mContext.getString(resId);
    }

    @AvailabilityStatus
    public int getAvailabilityStatus() {
        return mContext.getResources().getBoolean(R.bool.config_show_location_scanning)
                ? AVAILABLE
                : UNSUPPORTED_ON_DEVICE;
    }
}