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; 18 19 import android.content.BroadcastReceiver; 20 import android.content.Context; 21 import android.content.Intent; 22 import android.content.IntentFilter; 23 import android.net.ConnectivityManager; 24 import android.net.NetworkScoreManager; 25 import android.net.wifi.WifiInfo; 26 import android.net.wifi.WifiManager; 27 import android.text.TextUtils; 28 29 import androidx.annotation.VisibleForTesting; 30 31 import com.android.settings.R; 32 import com.android.settings.widget.SummaryUpdater; 33 import com.android.settingslib.wifi.WifiStatusTracker; 34 35 /** 36 * Helper class that listeners to wifi callback and notify client when there is update in 37 * wifi summary info. 38 */ 39 public final class WifiSummaryUpdater extends SummaryUpdater { 40 41 private final WifiStatusTracker mWifiTracker; 42 private final BroadcastReceiver mReceiver; 43 44 private static final IntentFilter INTENT_FILTER; 45 static { 46 INTENT_FILTER = new IntentFilter(); 47 INTENT_FILTER.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION); 48 INTENT_FILTER.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION); 49 INTENT_FILTER.addAction(WifiManager.RSSI_CHANGED_ACTION); 50 } 51 WifiSummaryUpdater(Context context, OnSummaryChangeListener listener)52 public WifiSummaryUpdater(Context context, OnSummaryChangeListener listener) { 53 this(context, listener, null); 54 } 55 56 @VisibleForTesting WifiSummaryUpdater(Context context, OnSummaryChangeListener listener, WifiStatusTracker wifiTracker)57 public WifiSummaryUpdater(Context context, OnSummaryChangeListener listener, 58 WifiStatusTracker wifiTracker) { 59 super(context, listener); 60 mWifiTracker = wifiTracker != null ? wifiTracker : 61 new WifiStatusTracker(context, context.getSystemService(WifiManager.class), 62 context.getSystemService(NetworkScoreManager.class), 63 context.getSystemService(ConnectivityManager.class), 64 this::notifyChangeIfNeeded); 65 mReceiver = new BroadcastReceiver() { 66 @Override 67 public void onReceive(Context context, Intent intent) { 68 mWifiTracker.handleBroadcast(intent); 69 notifyChangeIfNeeded(); 70 } 71 }; 72 } 73 74 @Override register(boolean register)75 public void register(boolean register) { 76 if (register) { 77 notifyChangeIfNeeded(); 78 mContext.registerReceiver(mReceiver, INTENT_FILTER); 79 } else { 80 mContext.unregisterReceiver(mReceiver); 81 } 82 mWifiTracker.setListening(register); 83 } 84 85 @Override getSummary()86 public String getSummary() { 87 if (!mWifiTracker.enabled) { 88 return mContext.getString(R.string.switch_off_text); 89 } 90 if (!mWifiTracker.connected) { 91 return mContext.getString(R.string.disconnected); 92 } 93 String ssid = WifiInfo.removeDoubleQuotes(mWifiTracker.ssid); 94 if (TextUtils.isEmpty(mWifiTracker.statusLabel)) { 95 return ssid; 96 } 97 return mContext.getResources().getString( 98 com.android.settingslib.R.string.preference_summary_default_combination, 99 ssid, mWifiTracker.statusLabel); 100 } 101 } 102