1 /*
2  * Copyright 2019 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.content.Context;
20 
21 import androidx.annotation.XmlRes;
22 
23 import com.android.car.settings.R;
24 import com.android.car.settings.common.SettingsFragment;
25 import com.android.settingslib.bluetooth.LocalBluetoothManager;
26 
27 /**
28  * Hosts {@link BluetoothDevicePickerPreferenceController} to display the list of Bluetooth
29  * devices. The progress bar is shown while this fragment is visible to indicate discovery or
30  * pairing progress.
31  */
32 public class BluetoothDevicePickerFragment extends SettingsFragment {
33 
34     private LocalBluetoothManager mManager;
35 
36     @Override
37     @XmlRes
getPreferenceScreenResId()38     protected int getPreferenceScreenResId() {
39         return R.xml.bluetooth_device_picker_fragment;
40     }
41 
42     @Override
onAttach(Context context)43     public void onAttach(Context context) {
44         super.onAttach(context);
45         mManager = BluetoothUtils.getLocalBtManager(context);
46         if (mManager == null) {
47             goBack();
48             return;
49         }
50 
51         use(BluetoothDevicePickerPreferenceController.class,
52                 R.string.pk_bluetooth_device_picker).setLaunchIntent(requireActivity().getIntent());
53     }
54 
55     @Override
onStart()56     public void onStart() {
57         super.onStart();
58         mManager.setForegroundActivity(requireActivity());
59         getToolbar().getProgressBar().setVisible(true);
60     }
61 
62     @Override
onStop()63     public void onStop() {
64         super.onStop();
65         mManager.setForegroundActivity(null);
66         getToolbar().getProgressBar().setVisible(false);
67     }
68 }
69