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 import android.os.Bundle; 21 import android.view.View; 22 import android.widget.ProgressBar; 23 24 import androidx.annotation.XmlRes; 25 26 import com.android.car.settings.R; 27 import com.android.car.settings.common.SettingsFragment; 28 import com.android.settingslib.bluetooth.LocalBluetoothManager; 29 30 /** 31 * Hosts {@link BluetoothDevicePickerPreferenceController} to display the list of Bluetooth 32 * devices. The progress bar is shown while this fragment is visible to indicate discovery or 33 * pairing progress. 34 */ 35 public class BluetoothDevicePickerFragment extends SettingsFragment { 36 37 private LocalBluetoothManager mManager; 38 private ProgressBar mProgressBar; 39 40 @Override 41 @XmlRes getPreferenceScreenResId()42 protected int getPreferenceScreenResId() { 43 return R.xml.bluetooth_device_picker_fragment; 44 } 45 46 @Override onAttach(Context context)47 public void onAttach(Context context) { 48 super.onAttach(context); 49 mManager = BluetoothUtils.getLocalBtManager(context); 50 if (mManager == null) { 51 goBack(); 52 return; 53 } 54 55 use(BluetoothDevicePickerPreferenceController.class, 56 R.string.pk_bluetooth_device_picker).setLaunchIntent(requireActivity().getIntent()); 57 } 58 59 @Override onActivityCreated(Bundle savedInstanceState)60 public void onActivityCreated(Bundle savedInstanceState) { 61 super.onActivityCreated(savedInstanceState); 62 mProgressBar = requireActivity().findViewById(R.id.progress_bar); 63 } 64 65 @Override onStart()66 public void onStart() { 67 super.onStart(); 68 mManager.setForegroundActivity(requireActivity()); 69 mProgressBar.setVisibility(View.VISIBLE); 70 } 71 72 @Override onStop()73 public void onStop() { 74 super.onStop(); 75 mManager.setForegroundActivity(null); 76 mProgressBar.setVisibility(View.GONE); 77 } 78 } 79