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 17 package com.android.settings.wifi.tether; 18 19 import static android.net.wifi.WifiConfiguration.AP_BAND_2GHZ; 20 import static android.net.wifi.WifiConfiguration.AP_BAND_5GHZ; 21 22 import android.content.Context; 23 import android.content.res.Resources; 24 import android.icu.text.ListFormatter; 25 import android.net.wifi.WifiConfiguration; 26 import android.support.v7.preference.Preference; 27 import android.util.Log; 28 29 import com.android.settings.R; 30 import com.android.settings.widget.HotspotApBandSelectionPreference; 31 32 public class WifiTetherApBandPreferenceController extends WifiTetherBasePreferenceController { 33 34 private static final String TAG = "WifiTetherApBandPref"; 35 private static final String PREF_KEY = "wifi_tether_network_ap_band"; 36 public static final String[] BAND_VALUES = 37 {String.valueOf(AP_BAND_2GHZ), String.valueOf(AP_BAND_5GHZ)}; 38 39 private final String[] mBandEntries; 40 private final String[] mBandSummaries; 41 private int mBandIndex; 42 WifiTetherApBandPreferenceController(Context context, OnTetherConfigUpdateListener listener)43 public WifiTetherApBandPreferenceController(Context context, 44 OnTetherConfigUpdateListener listener) { 45 super(context, listener); 46 Resources res = mContext.getResources(); 47 mBandEntries = res.getStringArray(R.array.wifi_ap_band_config_full); 48 mBandSummaries = res.getStringArray(R.array.wifi_ap_band_summary_full); 49 } 50 51 @Override updateDisplay()52 public void updateDisplay() { 53 final WifiConfiguration config = mWifiManager.getWifiApConfiguration(); 54 if (config == null) { 55 mBandIndex = 0; 56 Log.d(TAG, "Updating band index to 0 because no config"); 57 } else if (is5GhzBandSupported()) { 58 mBandIndex = config.apBand; 59 Log.d(TAG, "Updating band index to " + mBandIndex); 60 } else { 61 config.apBand = 0; 62 mWifiManager.setWifiApConfiguration(config); 63 mBandIndex = config.apBand; 64 Log.d(TAG, "5Ghz not supported, updating band index to " + mBandIndex); 65 } 66 HotspotApBandSelectionPreference preference = 67 (HotspotApBandSelectionPreference) mPreference; 68 69 if (!is5GhzBandSupported()) { 70 preference.setEnabled(false); 71 preference.setSummary(R.string.wifi_ap_choose_2G); 72 } else { 73 preference.setExistingConfigValue(config.apBand); 74 preference.setSummary(getConfigSummary()); 75 } 76 } 77 getConfigSummary()78 String getConfigSummary() { 79 if (mBandIndex == WifiConfiguration.AP_BAND_ANY) { 80 return ListFormatter.getInstance().format((Object[]) mBandSummaries); 81 } 82 return mBandSummaries[mBandIndex]; 83 } 84 85 @Override getPreferenceKey()86 public String getPreferenceKey() { 87 return PREF_KEY; 88 } 89 90 @Override onPreferenceChange(Preference preference, Object newValue)91 public boolean onPreferenceChange(Preference preference, Object newValue) { 92 mBandIndex = (Integer) newValue; 93 Log.d(TAG, "Band preference changed, updating band index to " + mBandIndex); 94 preference.setSummary(getConfigSummary()); 95 mListener.onTetherConfigUpdated(); 96 return true; 97 } 98 is5GhzBandSupported()99 private boolean is5GhzBandSupported() { 100 final String countryCode = mWifiManager.getCountryCode(); 101 if (!mWifiManager.isDualBandSupported() || countryCode == null) { 102 return false; 103 } 104 return true; 105 } 106 getBandIndex()107 public int getBandIndex() { 108 return mBandIndex; 109 } 110 } 111