1 /* 2 * Copyright 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.car.settings.bluetooth; 18 19 import android.car.drivingstate.CarUxRestrictions; 20 import android.content.Context; 21 22 import androidx.preference.Preference; 23 import androidx.preference.PreferenceGroup; 24 25 import com.android.car.settings.common.FragmentController; 26 import com.android.settingslib.bluetooth.LocalBluetoothProfile; 27 28 /** 29 * Displays toggles for Bluetooth profiles supported by a device. Toggling a profile on will set it 30 * as preferred and attempt a connection. Toggling a profile off will disconnect the profile. If no 31 * profiles are supported, the preference is hidden. 32 */ 33 public class BluetoothDeviceProfilesPreferenceController extends 34 BluetoothDevicePreferenceController<PreferenceGroup> { 35 36 private final Preference.OnPreferenceChangeListener mProfileChangeListener = 37 (preference, newValue) -> { 38 boolean isChecked = (boolean) newValue; 39 BluetoothDeviceProfilePreference profilePref = 40 (BluetoothDeviceProfilePreference) preference; 41 LocalBluetoothProfile profile = profilePref.getProfile(); 42 profile.setPreferred(profilePref.getCachedDevice().getDevice(), isChecked); 43 if (isChecked) { 44 getCachedDevice().connectProfile(profile); 45 } else { 46 getCachedDevice().disconnect(profile); 47 } 48 return true; 49 }; 50 BluetoothDeviceProfilesPreferenceController(Context context, String preferenceKey, FragmentController fragmentController, CarUxRestrictions uxRestrictions)51 public BluetoothDeviceProfilesPreferenceController(Context context, String preferenceKey, 52 FragmentController fragmentController, CarUxRestrictions uxRestrictions) { 53 super(context, preferenceKey, fragmentController, uxRestrictions); 54 } 55 56 @Override getPreferenceType()57 protected Class<PreferenceGroup> getPreferenceType() { 58 return PreferenceGroup.class; 59 } 60 61 @Override updateState(PreferenceGroup preferenceGroup)62 protected void updateState(PreferenceGroup preferenceGroup) { 63 for (LocalBluetoothProfile profile : getCachedDevice().getProfiles()) { 64 Preference profilePref = preferenceGroup.findPreference(profile.toString()); 65 if (profilePref == null) { 66 profilePref = new BluetoothDeviceProfilePreference(getContext(), profile, 67 getCachedDevice()); 68 profilePref.setOnPreferenceChangeListener(mProfileChangeListener); 69 preferenceGroup.addPreference(profilePref); 70 } 71 } 72 for (LocalBluetoothProfile removedProfile : getCachedDevice().getRemovedProfiles()) { 73 Preference prefToRemove = preferenceGroup.findPreference(removedProfile.toString()); 74 if (prefToRemove != null) { 75 preferenceGroup.removePreference(prefToRemove); 76 } 77 } 78 preferenceGroup.setVisible(preferenceGroup.getPreferenceCount() > 0); 79 } 80 } 81