1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.car.settings.wifi.details; 17 18 import android.car.drivingstate.CarUxRestrictions; 19 import android.content.Context; 20 21 import com.android.car.settings.R; 22 import com.android.car.settings.common.FragmentController; 23 import com.android.car.settings.common.Logger; 24 import com.android.wifitrackerlib.WifiEntry; 25 26 /** 27 * Shows frequency info about the Wifi connection. 28 */ 29 public class WifiFrequencyPreferenceController extends 30 WifiDetailsBasePreferenceController<WifiDetailsPreference> { 31 private static final Logger LOG = new Logger(WifiFrequencyPreferenceController.class); 32 WifiFrequencyPreferenceController(Context context, String preferenceKey, FragmentController fragmentController, CarUxRestrictions uxRestrictions)33 public WifiFrequencyPreferenceController(Context context, String preferenceKey, 34 FragmentController fragmentController, CarUxRestrictions uxRestrictions) { 35 super(context, preferenceKey, fragmentController, uxRestrictions); 36 } 37 38 @Override getPreferenceType()39 protected Class<WifiDetailsPreference> getPreferenceType() { 40 return WifiDetailsPreference.class; 41 } 42 43 @Override updateState(WifiDetailsPreference preference)44 protected void updateState(WifiDetailsPreference preference) { 45 WifiEntry.ConnectedInfo connectedInfo = getWifiEntry().getConnectedInfo(); 46 if (connectedInfo == null) { 47 preference.setVisible(false); 48 return; 49 } 50 51 int frequency = connectedInfo.frequencyMhz; 52 String band = null; 53 if (frequency >= WifiEntry.MIN_FREQ_24GHZ && frequency < WifiEntry.MAX_FREQ_24GHZ) { 54 band = getContext().getResources().getString(R.string.wifi_band_24ghz); 55 } else if (frequency >= WifiEntry.MIN_FREQ_5GHZ && frequency < WifiEntry.MAX_FREQ_5GHZ) { 56 band = getContext().getResources().getString(R.string.wifi_band_5ghz); 57 } else { 58 LOG.e("Unexpected frequency " + frequency); 59 preference.setVisible(false); 60 return; 61 } 62 preference.setDetailText(band); 63 preference.setVisible(true); 64 } 65 } 66