1 /* 2 * Copyright (C) 2018 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.details; 18 19 import android.app.backup.BackupManager; 20 import android.content.Context; 21 import android.net.wifi.WifiConfiguration; 22 import android.net.wifi.WifiManager; 23 24 import androidx.annotation.VisibleForTesting; 25 import androidx.preference.DropDownPreference; 26 import androidx.preference.Preference; 27 import androidx.preference.PreferenceScreen; 28 29 import com.android.settings.core.BasePreferenceController; 30 import com.android.settings.wifi.WifiDialog; 31 import com.android.settingslib.core.AbstractPreferenceController; 32 33 /** 34 * {@link AbstractPreferenceController} that controls whether the wifi network is metered or not. 35 * 36 * Migrating from Wi-Fi SettingsLib to to WifiTrackerLib, this object will be removed in the near 37 * future, please develop in 38 * {@link com.android.settings.wifi.details2.WifiMeteredPreferenceControlle2}. 39 */ 40 public class WifiMeteredPreferenceController extends BasePreferenceController implements 41 Preference.OnPreferenceChangeListener, WifiDialog.WifiDialogListener { 42 43 private static final String KEY_WIFI_METERED = "metered"; 44 private WifiConfiguration mWifiConfiguration; 45 private WifiManager mWifiManager; 46 private Preference mPreference; 47 WifiMeteredPreferenceController(Context context, WifiConfiguration wifiConfiguration)48 public WifiMeteredPreferenceController(Context context, WifiConfiguration wifiConfiguration) { 49 super(context, KEY_WIFI_METERED); 50 mWifiConfiguration = wifiConfiguration; 51 mWifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE); 52 } 53 54 @Override updateState(Preference preference)55 public void updateState(Preference preference) { 56 final DropDownPreference dropDownPreference = (DropDownPreference) preference; 57 final int meteredOverride = getMeteredOverride(); 58 dropDownPreference.setValue(Integer.toString(meteredOverride)); 59 updateSummary(dropDownPreference, meteredOverride); 60 } 61 62 @Override getAvailabilityStatus()63 public int getAvailabilityStatus() { 64 return AVAILABLE; 65 } 66 67 @Override onPreferenceChange(Preference preference, Object newValue)68 public boolean onPreferenceChange(Preference preference, Object newValue) { 69 if (mWifiConfiguration != null) { 70 mWifiConfiguration.meteredOverride = Integer.parseInt((String) newValue); 71 } 72 mWifiManager.updateNetwork(mWifiConfiguration); 73 // Stage the backup of the SettingsProvider package which backs this up 74 BackupManager.dataChanged("com.android.providers.settings"); 75 updateSummary((DropDownPreference) preference, getMeteredOverride()); 76 return true; 77 } 78 79 @VisibleForTesting getMeteredOverride()80 int getMeteredOverride() { 81 if (mWifiConfiguration != null) { 82 // Wrap the meteredOverride since robolectric cannot recognize it 83 return mWifiConfiguration.meteredOverride; 84 } 85 return WifiConfiguration.METERED_OVERRIDE_NONE; 86 } 87 updateSummary(DropDownPreference preference, int meteredOverride)88 private void updateSummary(DropDownPreference preference, int meteredOverride) { 89 preference.setSummary(preference.getEntries()[meteredOverride]); 90 } 91 92 @Override displayPreference(PreferenceScreen screen)93 public void displayPreference(PreferenceScreen screen) { 94 super.displayPreference(screen); 95 mPreference = screen.findPreference(getPreferenceKey()); 96 } 97 98 @Override onSubmit(WifiDialog dialog)99 public void onSubmit(WifiDialog dialog) { 100 if (dialog.getController() != null) { 101 final WifiConfiguration newConfig = dialog.getController().getConfig(); 102 if (newConfig == null || mWifiConfiguration == null) { 103 return; 104 } 105 106 if (newConfig.meteredOverride != mWifiConfiguration.meteredOverride) { 107 mWifiConfiguration = newConfig; 108 onPreferenceChange(mPreference, String.valueOf(newConfig.meteredOverride)); 109 } 110 } 111 } 112 } 113