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.settingslib.deviceinfo; 18 19 import android.annotation.SuppressLint; 20 import android.bluetooth.BluetoothAdapter; 21 import android.content.Context; 22 import android.support.annotation.VisibleForTesting; 23 import android.support.v7.preference.Preference; 24 import android.support.v7.preference.PreferenceScreen; 25 import android.text.TextUtils; 26 27 import com.android.settingslib.R; 28 import com.android.settingslib.core.lifecycle.Lifecycle; 29 30 /** 31 * Preference controller for bluetooth address 32 */ 33 public abstract class AbstractBluetoothAddressPreferenceController 34 extends AbstractConnectivityPreferenceController { 35 36 @VisibleForTesting 37 static final String KEY_BT_ADDRESS = "bt_address"; 38 39 private static final String[] CONNECTIVITY_INTENTS = { 40 BluetoothAdapter.ACTION_STATE_CHANGED 41 }; 42 43 private Preference mBtAddress; 44 AbstractBluetoothAddressPreferenceController(Context context, Lifecycle lifecycle)45 public AbstractBluetoothAddressPreferenceController(Context context, Lifecycle lifecycle) { 46 super(context, lifecycle); 47 } 48 49 @Override isAvailable()50 public boolean isAvailable() { 51 return BluetoothAdapter.getDefaultAdapter() != null; 52 } 53 54 @Override getPreferenceKey()55 public String getPreferenceKey() { 56 return KEY_BT_ADDRESS; 57 } 58 59 @Override displayPreference(PreferenceScreen screen)60 public void displayPreference(PreferenceScreen screen) { 61 super.displayPreference(screen); 62 mBtAddress = screen.findPreference(KEY_BT_ADDRESS); 63 updateConnectivity(); 64 } 65 66 @Override getConnectivityIntents()67 protected String[] getConnectivityIntents() { 68 return CONNECTIVITY_INTENTS; 69 } 70 71 @SuppressLint("HardwareIds") 72 @Override updateConnectivity()73 protected void updateConnectivity() { 74 BluetoothAdapter bluetooth = BluetoothAdapter.getDefaultAdapter(); 75 if (bluetooth != null && mBtAddress != null) { 76 String address = bluetooth.isEnabled() ? bluetooth.getAddress() : null; 77 if (!TextUtils.isEmpty(address)) { 78 // Convert the address to lowercase for consistency with the wifi MAC address. 79 mBtAddress.setSummary(address.toLowerCase()); 80 } else { 81 mBtAddress.setSummary(R.string.status_unavailable); 82 } 83 } 84 } 85 } 86