Java tutorial
/***************************************************************************** * RemoteControlClientReceiver.java * **************************************************************************** * Copyright 2012-2017 VLC authors and VideoLAN * * 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 2 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, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/ package org.videolan.vlc; import android.content.Context; import android.content.Intent; import android.os.SystemClock; import android.support.v4.media.session.MediaButtonReceiver; import android.view.KeyEvent; import org.videolan.vlc.util.AndroidDevices; /** * Small class to receive events passed out by the remote controls (wired, bluetooth, lock screen, ...) */ public class RemoteControlClientReceiver extends MediaButtonReceiver { @SuppressWarnings("unused") private static final String TAG = "VLC/RemoteControlClientReceiver"; /* It should be safe to use static variables here once registered via the AudioManager */ private static long mHeadsetDownTime = 0; private static long mHeadsetUpTime = 0; @Override public void onReceive(Context context, Intent intent) { String action = intent.getAction(); KeyEvent event = intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT); if (event != null && action.equalsIgnoreCase(Intent.ACTION_MEDIA_BUTTON)) { if (event.getKeyCode() != KeyEvent.KEYCODE_HEADSETHOOK && event.getKeyCode() != KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE && event.getAction() != KeyEvent.ACTION_DOWN) { super.onReceive(context, intent); return; } Intent i = null; switch (event.getKeyCode()) { /* * one click => play/pause * long click => previous * double click => next */ case KeyEvent.KEYCODE_HEADSETHOOK: case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE: long time = SystemClock.uptimeMillis(); switch (event.getAction()) { case KeyEvent.ACTION_DOWN: if (event.getRepeatCount() <= 0) mHeadsetDownTime = time; break; case KeyEvent.ACTION_UP: if (AndroidDevices.hasTsp()) { //no backward/forward on TV if (time - mHeadsetDownTime >= 1000) { // long click i = new Intent(PlaybackService.ACTION_REMOTE_BACKWARD, null, VLCApplication.getAppContext(), PlaybackService.class); break; } else if (time - mHeadsetUpTime <= 500) { // double click i = new Intent(PlaybackService.ACTION_REMOTE_FORWARD, null, VLCApplication.getAppContext(), PlaybackService.class); break; } } // one click i = new Intent(PlaybackService.ACTION_REMOTE_PLAYPAUSE, null, VLCApplication.getAppContext(), PlaybackService.class); mHeadsetUpTime = time; break; } break; case KeyEvent.KEYCODE_MEDIA_PLAY: context.startService(new Intent(PlaybackService.ACTION_REMOTE_PLAY, null, VLCApplication.getAppContext(), PlaybackService.class)); return; case KeyEvent.KEYCODE_MEDIA_PAUSE: i = new Intent(PlaybackService.ACTION_REMOTE_PAUSE, null, VLCApplication.getAppContext(), PlaybackService.class); break; case KeyEvent.KEYCODE_MEDIA_STOP: i = new Intent(PlaybackService.ACTION_REMOTE_STOP, null, VLCApplication.getAppContext(), PlaybackService.class); break; case KeyEvent.KEYCODE_MEDIA_NEXT: i = new Intent(PlaybackService.ACTION_REMOTE_FORWARD, null, VLCApplication.getAppContext(), PlaybackService.class); break; case KeyEvent.KEYCODE_MEDIA_PREVIOUS: i = new Intent(PlaybackService.ACTION_REMOTE_BACKWARD, null, VLCApplication.getAppContext(), PlaybackService.class); break; } if (isOrderedBroadcast()) abortBroadcast(); if (i != null) { context.startService(i); return; } } else if (action.equals(PlaybackService.ACTION_REMOTE_PLAYPAUSE)) { intent = new Intent(context, PlaybackService.class); intent.setAction(PlaybackService.ACTION_REMOTE_PLAYPAUSE); context.startService(intent); return; } super.onReceive(context, intent); } }