| /* |
| * Copyright 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.car.settings.bluetooth; |
| |
| import android.bluetooth.BluetoothDevice; |
| import android.content.Context; |
| |
| import com.android.car.settings.R; |
| import com.android.car.settings.common.SettingsFragment; |
| import com.android.settingslib.bluetooth.BluetoothCallback; |
| import com.android.settingslib.bluetooth.CachedBluetoothDevice; |
| import com.android.settingslib.bluetooth.LocalBluetoothManager; |
| |
| /** |
| * Page which scans for Bluetooth devices so that a user can select a new device to pair. When a |
| * device pairs, this page will finish. |
| */ |
| public class BluetoothPairingSelectionFragment extends SettingsFragment { |
| |
| private final BluetoothCallback mCallback = new BluetoothCallback() { |
| @Override |
| public void onScanningStateChanged(boolean started) { |
| } |
| |
| @Override |
| public void onDeviceBondStateChanged(CachedBluetoothDevice cachedDevice, int bondState) { |
| if (bondState == BluetoothDevice.BOND_BONDED) { |
| // We are in a dispatch loop from event manager to all listeners. goBack will pop |
| // immediately, stopping this fragment causing an unregister from the event manager |
| // and a ConcurrentModificationException. Wait until the dispatch is done to go |
| // back. |
| requireActivity().getMainThreadHandler().post( |
| BluetoothPairingSelectionFragment.this::goBack); |
| } |
| } |
| }; |
| |
| private LocalBluetoothManager mManager; |
| |
| @Override |
| protected int getPreferenceScreenResId() { |
| return R.xml.bluetooth_pairing_selection_fragment; |
| } |
| |
| @Override |
| public void onAttach(Context context) { |
| super.onAttach(context); |
| mManager = BluetoothUtils.getLocalBtManager(context); |
| if (mManager == null) { |
| goBack(); |
| } |
| } |
| |
| @Override |
| public void onStart() { |
| super.onStart(); |
| mManager.setForegroundActivity(requireActivity()); |
| mManager.getEventManager().registerCallback(mCallback); |
| getToolbar().showProgressBar(); |
| } |
| |
| @Override |
| public void onStop() { |
| super.onStop(); |
| mManager.setForegroundActivity(null); |
| mManager.getEventManager().unregisterCallback(mCallback); |
| getToolbar().hideProgressBar(); |
| } |
| } |