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