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.settings.wifi; 17 18 import android.content.Context; 19 import android.support.v7.preference.PreferenceScreen; 20 21 import com.android.settings.core.PreferenceControllerMixin; 22 import com.android.settings.R; 23 import com.android.settings.widget.SummaryUpdater; 24 import com.android.settings.widget.MasterSwitchPreference; 25 import com.android.settings.widget.MasterSwitchController; 26 import com.android.settingslib.core.AbstractPreferenceController; 27 import com.android.settingslib.core.instrumentation.MetricsFeatureProvider; 28 import com.android.settingslib.core.lifecycle.LifecycleObserver; 29 import com.android.settingslib.core.lifecycle.events.OnPause; 30 import com.android.settingslib.core.lifecycle.events.OnResume; 31 import com.android.settingslib.core.lifecycle.events.OnStart; 32 import com.android.settingslib.core.lifecycle.events.OnStop; 33 34 public class WifiMasterSwitchPreferenceController extends AbstractPreferenceController 35 implements PreferenceControllerMixin, SummaryUpdater.OnSummaryChangeListener, 36 LifecycleObserver, OnResume, OnPause, OnStart, OnStop { 37 38 public static final String KEY_TOGGLE_WIFI = "toggle_wifi"; 39 40 private MasterSwitchPreference mWifiPreference; 41 private WifiEnabler mWifiEnabler; 42 private final WifiSummaryUpdater mSummaryHelper; 43 private final MetricsFeatureProvider mMetricsFeatureProvider; 44 WifiMasterSwitchPreferenceController(Context context, MetricsFeatureProvider metricsFeatureProvider)45 public WifiMasterSwitchPreferenceController(Context context, 46 MetricsFeatureProvider metricsFeatureProvider) { 47 super(context); 48 mMetricsFeatureProvider = metricsFeatureProvider; 49 mSummaryHelper = new WifiSummaryUpdater(mContext, this); 50 } 51 52 @Override displayPreference(PreferenceScreen screen)53 public void displayPreference(PreferenceScreen screen) { 54 super.displayPreference(screen); 55 mWifiPreference = (MasterSwitchPreference) screen.findPreference(KEY_TOGGLE_WIFI); 56 } 57 58 @Override isAvailable()59 public boolean isAvailable() { 60 return mContext.getResources().getBoolean(R.bool.config_show_wifi_settings); 61 } 62 63 @Override getPreferenceKey()64 public String getPreferenceKey() { 65 return KEY_TOGGLE_WIFI; 66 } 67 68 @Override onResume()69 public void onResume() { 70 mSummaryHelper.register(true); 71 if (mWifiEnabler != null) { 72 mWifiEnabler.resume(mContext); 73 } 74 } 75 76 @Override onPause()77 public void onPause() { 78 if (mWifiEnabler != null) { 79 mWifiEnabler.pause(); 80 } 81 mSummaryHelper.register(false); 82 } 83 84 @Override onStart()85 public void onStart() { 86 mWifiEnabler = new WifiEnabler(mContext, new MasterSwitchController(mWifiPreference), 87 mMetricsFeatureProvider); 88 } 89 90 @Override onStop()91 public void onStop() { 92 if (mWifiEnabler != null) { 93 mWifiEnabler.teardownSwitchController(); 94 } 95 } 96 97 @Override onSummaryChanged(String summary)98 public void onSummaryChanged(String summary) { 99 if (mWifiPreference != null) { 100 mWifiPreference.setSummary(summary); 101 } 102 } 103 104 } 105