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package com.mobileer.audio_device;
/*
* Copyright 2022 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.
*/
import android.annotation.TargetApi;
import android.content.Context;
import android.content.res.Resources.Theme;
import android.media.AudioDeviceCallback;
import android.media.AudioDeviceInfo;
import android.media.AudioManager;
import android.util.AttributeSet;
import android.widget.Spinner;
import com.mobileer.oboetester.R;
import java.util.List;
public class CommunicationDeviceSpinner extends Spinner {
private static final String TAG = CommunicationDeviceSpinner.class.getName();
// menu positions
public static final int POS_CLEAR = 0;
public static final int POS_DEVICES = 1; // base position for device list
private AudioDeviceAdapter mDeviceAdapter;
private AudioManager mAudioManager;
private Context mContext;
AudioDeviceInfo[] mCommDeviceArray = null;
public CommunicationDeviceSpinner(Context context){
super(context);
setup(context);
}
public CommunicationDeviceSpinner(Context context, int mode){
super(context, mode);
setup(context);
}
public CommunicationDeviceSpinner(Context context, AttributeSet attrs){
super(context, attrs);
setup(context);
}
public CommunicationDeviceSpinner(Context context, AttributeSet attrs, int defStyleAttr){
super(context, attrs, defStyleAttr);
setup(context);
}
public CommunicationDeviceSpinner(Context context, AttributeSet attrs, int defStyleAttr, int mode){
super(context, attrs, defStyleAttr, mode);
setup(context);
}
public CommunicationDeviceSpinner(Context context, AttributeSet attrs, int defStyleAttr,
int defStyleRes, int mode){
super(context, attrs, defStyleAttr, defStyleRes, mode);
setup(context);
}
public CommunicationDeviceSpinner(Context context, AttributeSet attrs, int defStyleAttr,
int defStyleRes, int mode, Theme popupTheme){
super(context, attrs, defStyleAttr, defStyleRes, mode, popupTheme);
setup(context);
}
public AudioDeviceInfo[] getCommunicationsDevices() {
return mCommDeviceArray;
}
private void setup(Context context){
mContext = context;
mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
mDeviceAdapter = new AudioDeviceAdapter(context);
setAdapter(mDeviceAdapter);
// Add default entries to the list and select one.
addDefaultDevicesOptions();
setSelection(POS_CLEAR);
setupCommunicationDeviceListener();
}
@TargetApi(31)
private void setupCommunicationDeviceListener(){
// Note that we will immediately receive a call to onDevicesAdded with the list of
// devices which are currently connected.
mAudioManager.registerAudioDeviceCallback(new AudioDeviceCallback() {
@Override
public void onAudioDevicesAdded(AudioDeviceInfo[] addedDevices) {
updateDeviceList();
}
public void onAudioDevicesRemoved(AudioDeviceInfo[] removedDevices) {
updateDeviceList();
}
private void updateDeviceList() {
mDeviceAdapter.clear();
addDefaultDevicesOptions();
setSelection(POS_CLEAR);
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.S) {
List<AudioDeviceInfo> commDeviceList = mAudioManager.getAvailableCommunicationDevices();
mCommDeviceArray = commDeviceList.toArray(new AudioDeviceInfo[0]);
// Communications Devices are always OUTPUTS.
List<AudioDeviceListEntry> deviceList =
AudioDeviceListEntry.createListFrom(
mCommDeviceArray, AudioManager.GET_DEVICES_OUTPUTS);
mDeviceAdapter.addAll(deviceList);
}
}
}, null);
}
private void addDefaultDevicesOptions() {
mDeviceAdapter.add(new AudioDeviceListEntry(POS_CLEAR,
mContext.getString(R.string.clear_comm)));
}
}
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