de.j4velin.headsetturnon.ListeningService.java Source code

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Here is the source code for de.j4velin.headsetturnon.ListeningService.java

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/*
 * Copyright 2015 Thomas Hoffmann
 *
 * 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 de.j4velin.headsetturnon;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.ComponentName;
import android.content.Intent;
import android.media.AudioManager;
import android.os.IBinder;
import android.support.annotation.Nullable;
import android.support.v4.app.NotificationCompat;

public class ListeningService extends Service {

    private final AudioManager.OnAudioFocusChangeListener focusChangeListener = new AudioManager.OnAudioFocusChangeListener() {
        @Override
        public void onAudioFocusChange(final int focusChange) {
            if (BuildConfig.DEBUG)
                android.util.Log.d("HeadsetTurnOn", "audioFocusChanged: " + focusChange);
            if (focusChange == AudioManager.AUDIOFOCUS_LOSS) {
                AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
                am.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + 500, PendingIntent.getService(
                        ListeningService.this, 0, new Intent(ListeningService.this, ListeningService.class), 0));
                stopSelf();
            } else if (focusChange == AudioManager.AUDIOFOCUS_GAIN) {
                AudioManager am = (AudioManager) getSystemService(AUDIO_SERVICE);
                am.registerMediaButtonEventReceiver(new ComponentName(ListeningService.this, Receiver.class));
            }

        }
    };

    @Nullable
    @Override
    public IBinder onBind(final Intent intent) {
        return null;
    }

    @Override
    public void onCreate() {
        super.onCreate();
        if (BuildConfig.DEBUG)
            android.util.Log.d("HeadsetTurnOn", "service create");
    }

    @Override
    public int onStartCommand(final Intent intent, int flags, int startId) {
        if (BuildConfig.DEBUG)
            android.util.Log.d("HeadsetTurnOn", "service start");
        AudioManager am = (AudioManager) getSystemService(AUDIO_SERVICE);
        boolean failed = am.requestAudioFocus(focusChangeListener, AudioManager.STREAM_MUSIC,
                AudioManager.AUDIOFOCUS_GAIN) == AudioManager.AUDIOFOCUS_REQUEST_FAILED;
        am.registerMediaButtonEventReceiver(new ComponentName(ListeningService.this, Receiver.class));

        if (BuildConfig.DEBUG)
            android.util.Log.d("HeadsetTurnOn", "request audiofocus failed? " + failed);

        NotificationCompat.Builder b = new NotificationCompat.Builder(this);
        b.setOngoing(true).setContentText(getString(R.string.notification_text))
                .setContentTitle(getString(R.string.notification_title)).setSmallIcon(R.drawable.ic_notification)
                .setContentIntent(PendingIntent.getActivity(this, 0,
                        new Intent(this, Main.class).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK), 0));

        startForeground(1, b.build());

        return START_STICKY;
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        if (BuildConfig.DEBUG)
            android.util.Log.d("HeadsetTurnOn", "service destroy");
        stopForeground(true);
        AudioManager am = (AudioManager) getSystemService(AUDIO_SERVICE);
        am.unregisterMediaButtonEventReceiver(new ComponentName(ListeningService.this, Receiver.class));
        am.abandonAudioFocus(focusChangeListener);
    }
}