1 /* 2 * Copyright (C) 2015 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.location; 18 19 import android.provider.Settings.Global; 20 import android.support.v14.preference.SwitchPreference; 21 import android.support.v7.preference.Preference; 22 import android.support.v7.preference.PreferenceScreen; 23 24 import com.android.internal.logging.nano.MetricsProto.MetricsEvent; 25 import com.android.settings.R; 26 import com.android.settings.SettingsPreferenceFragment; 27 28 /** 29 * A page that configures the background scanning settings for Wi-Fi and Bluetooth. 30 */ 31 public class ScanningSettings extends SettingsPreferenceFragment { 32 private static final String KEY_WIFI_SCAN_ALWAYS_AVAILABLE = "wifi_always_scanning"; 33 private static final String KEY_BLUETOOTH_SCAN_ALWAYS_AVAILABLE = "bluetooth_always_scanning"; 34 35 @Override getMetricsCategory()36 public int getMetricsCategory() { 37 return MetricsEvent.LOCATION_SCANNING; 38 } 39 40 @Override onResume()41 public void onResume() { 42 super.onResume(); 43 createPreferenceHierarchy(); 44 } 45 createPreferenceHierarchy()46 private PreferenceScreen createPreferenceHierarchy() { 47 PreferenceScreen root = getPreferenceScreen(); 48 if (root != null) { 49 root.removeAll(); 50 } 51 addPreferencesFromResource(R.xml.location_scanning); 52 root = getPreferenceScreen(); 53 initPreferences(); 54 return root; 55 } 56 initPreferences()57 private void initPreferences() { 58 final SwitchPreference wifiScanAlwaysAvailable = 59 (SwitchPreference) findPreference(KEY_WIFI_SCAN_ALWAYS_AVAILABLE); 60 wifiScanAlwaysAvailable.setChecked(Global.getInt(getContentResolver(), 61 Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1); 62 final SwitchPreference bleScanAlwaysAvailable = 63 (SwitchPreference) findPreference(KEY_BLUETOOTH_SCAN_ALWAYS_AVAILABLE); 64 bleScanAlwaysAvailable.setChecked(Global.getInt(getContentResolver(), 65 Global.BLE_SCAN_ALWAYS_AVAILABLE, 0) == 1); 66 } 67 68 @Override onPreferenceTreeClick(Preference preference)69 public boolean onPreferenceTreeClick(Preference preference) { 70 String key = preference.getKey(); 71 if (KEY_WIFI_SCAN_ALWAYS_AVAILABLE.equals(key)) { 72 Global.putInt(getContentResolver(), 73 Global.WIFI_SCAN_ALWAYS_AVAILABLE, 74 ((SwitchPreference) preference).isChecked() ? 1 : 0); 75 } else if (KEY_BLUETOOTH_SCAN_ALWAYS_AVAILABLE.equals(key)) { 76 Global.putInt(getContentResolver(), 77 Global.BLE_SCAN_ALWAYS_AVAILABLE, 78 ((SwitchPreference) preference).isChecked() ? 1 : 0); 79 } else { 80 return super.onPreferenceTreeClick(preference); 81 } 82 return true; 83 } 84 } 85