HeadsetButtonReceiver.java

/*
 * Copyright (C) 2012 - 2013 jonas.oreland@gmail.com, weides@gmail.com
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.runnerup.tracker.component;

import android.annotation.TargetApi;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.media.AudioManager;
import android.os.Build;
import android.preference.PreferenceManager;
import android.view.KeyEvent;

import org.runnerup.R;
import org.runnerup.common.util.Constants;

@TargetApi(Build.VERSION_CODES.FROYO)
public class HeadsetButtonReceiver extends BroadcastReceiver {

    public static void registerHeadsetListener(Context context) {
        registerHeadsetListener(context, HeadsetButtonReceiver.class);
    }

    protected static void registerHeadsetListener(Context context,
                                               Class<? extends BroadcastReceiver> class_) {
        ComponentName mMediaReceiverCompName = new ComponentName(
                context.getPackageName(), class_.getName());
        AudioManager mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
        mAudioManager.registerMediaButtonEventReceiver(mMediaReceiverCompName);
    }

    public static void unregisterHeadsetListener(Context context) {
        unregisterHeadsetListener(context, HeadsetButtonReceiver.class);
    }

    protected static void unregisterHeadsetListener(Context context,
                                                 Class<? extends BroadcastReceiver> class_) {
        ComponentName mMediaReceiverCompName = new ComponentName(
                context.getPackageName(), class_.getName());
        AudioManager mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
        mAudioManager.unregisterMediaButtonEventReceiver(mMediaReceiverCompName);
    }

    @Override
    public void onReceive(Context context, Intent intent) {
        if (Intent.ACTION_MEDIA_BUTTON.equals(intent.getAction())) {
            KeyEvent event = intent
                    .getParcelableExtra(Intent.EXTRA_KEY_EVENT);
            if (KeyEvent.ACTION_DOWN == event.getAction()) {
                Intent startBroadcastIntent = new Intent();
                startBroadcastIntent.setAction(Constants.Intents.PAUSE_RESUME);
                context.sendBroadcast(startBroadcastIntent);
            }
        }
    }

    public static boolean getAllowStartStopFromHeadsetKey(Context ctx) {
        SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(ctx);
        return pref.getBoolean(ctx.getString(R.string.pref_keystartstop_active), true);
    }
}