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.development; 18 19 import android.content.Context; 20 import android.os.SystemProperties; 21 import android.support.annotation.VisibleForTesting; 22 import android.support.v14.preference.SwitchPreference; 23 import android.support.v7.preference.Preference; 24 25 import com.android.settings.core.PreferenceControllerMixin; 26 import com.android.settingslib.development.DeveloperOptionsPreferenceController; 27 28 public class BluetoothDeviceNoNamePreferenceController extends 29 DeveloperOptionsPreferenceController implements Preference.OnPreferenceChangeListener, 30 PreferenceControllerMixin { 31 32 private static final String BLUETOOTH_SHOW_DEVICES_WITHOUT_NAMES_KEY = 33 "bluetooth_show_devices_without_names"; 34 @VisibleForTesting 35 static final String BLUETOOTH_SHOW_DEVICES_WITHOUT_NAMES_PROPERTY = 36 "persist.bluetooth.showdeviceswithoutnames"; 37 38 public BluetoothDeviceNoNamePreferenceController(Context context) { 39 super(context); 40 } 41 42 @Override 43 public String getPreferenceKey() { 44 return BLUETOOTH_SHOW_DEVICES_WITHOUT_NAMES_KEY; 45 } 46 47 @Override 48 public boolean onPreferenceChange(Preference preference, Object newValue) { 49 final boolean isEnabled = (Boolean) newValue; 50 SystemProperties.set(BLUETOOTH_SHOW_DEVICES_WITHOUT_NAMES_PROPERTY, 51 isEnabled ? "true" : "false"); 52 return true; 53 } 54 55 @Override 56 public void updateState(Preference preference) { 57 final boolean isEnabled = SystemProperties.getBoolean( 58 BLUETOOTH_SHOW_DEVICES_WITHOUT_NAMES_PROPERTY, false /* default */); 59 ((SwitchPreference) mPreference).setChecked(isEnabled); 60 } 61 62 @Override 63 protected void onDeveloperOptionsSwitchDisabled() { 64 super.onDeveloperOptionsSwitchDisabled(); 65 SystemProperties.set(BLUETOOTH_SHOW_DEVICES_WITHOUT_NAMES_PROPERTY, "false"); 66 ((SwitchPreference) mPreference).setChecked(false); 67 } 68 } 69
