Java tutorial
/* * ServeStream: A HTTP stream browser/player for Android * Copyright 2014 William Seemann * * 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 net.sourceforge.servestream.fragment; import net.sourceforge.servestream.R; import net.sourceforge.servestream.activity.MediaPlayerActivity; import net.sourceforge.servestream.provider.Media; import net.sourceforge.servestream.service.IMediaPlaybackService; import net.sourceforge.servestream.service.MediaPlaybackService; import net.sourceforge.servestream.utils.MusicUtils; import net.sourceforge.servestream.utils.PreferenceConstants; import net.sourceforge.servestream.utils.MusicUtils.ServiceToken; import android.content.BroadcastReceiver; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.content.ServiceConnection; import android.content.SharedPreferences; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.drawable.BitmapDrawable; import android.graphics.drawable.Drawable; import android.os.Bundle; import android.os.IBinder; import android.os.RemoteException; import android.preference.PreferenceManager; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.animation.Animation; import android.view.animation.AnimationUtils; import android.widget.ImageView; import android.widget.TextView; public class NowPlayingFragment extends Fragment implements ServiceConnection { private View mNowPlayingView; private ImageView mCoverart; private TextView mTitle; private TextView mArtist; private ImageView mPreviousButton; private ImageView mPauseButton; private ImageView mNextButton; private IMediaPlaybackService mService = null; private ServiceToken mToken; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mToken = MusicUtils.bindToService(getActivity(), this); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.fragment_nowplaying, container, false); mNowPlayingView = view.findViewById(R.id.nowplaying); mCoverart = (ImageView) view.findViewById(R.id.coverart); mTitle = (TextView) view.findViewById(R.id.title); mArtist = (TextView) view.findViewById(R.id.artist); mPreviousButton = (ImageView) view.findViewById(R.id.previous_button); mPauseButton = (ImageView) view.findViewById(R.id.play_pause_button); mNextButton = (ImageView) view.findViewById(R.id.next_button); return view; } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); updateNowPlaying(); } @Override public void onResume() { super.onResume(); IntentFilter f = new IntentFilter(); f.addAction(MediaPlaybackService.PLAYSTATE_CHANGED); f.addAction(MediaPlaybackService.META_CHANGED); f.addAction(MediaPlaybackService.QUEUE_CHANGED); getActivity().registerReceiver(mTrackListListener, f); } @Override public void onPause() { super.onPause(); getActivity().unregisterReceiver(mTrackListListener); } @Override public void onDestroy() { MusicUtils.unbindFromService(mToken); mService = null; super.onDestroy(); } private BroadcastReceiver mTrackListListener = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { updateNowPlaying(); } }; @Override public void onServiceConnected(ComponentName name, IBinder service) { mService = IMediaPlaybackService.Stub.asInterface(service); updateNowPlaying(); } @Override public void onServiceDisconnected(ComponentName name) { Animation fade_out = AnimationUtils.loadAnimation(getActivity(), R.anim.player_out); mNowPlayingView.startAnimation(fade_out); mNowPlayingView.setVisibility(View.GONE); } private void updateNowPlaying() { if (mNowPlayingView == null) { return; } try { if (true && mService != null && mService.getAudioId() != -1) { Drawable d = null; SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(getActivity()); if (preferences.getBoolean(PreferenceConstants.RETRIEVE_ALBUM_ART, false)) { long id = mService.getAudioId(); if (id >= 0) { Bitmap b = BitmapFactory.decodeResource(getActivity().getResources(), R.drawable.albumart_mp_unknown_list); BitmapDrawable defaultAlbumIcon = new BitmapDrawable(getActivity().getResources(), b); // no filter or dither, it's a lot faster and we can't tell the difference defaultAlbumIcon.setFilterBitmap(false); defaultAlbumIcon.setDither(false); d = MusicUtils.getCachedArtwork(getActivity(), mService.getAudioId(), defaultAlbumIcon, true); } } if (d == null) { mCoverart.setVisibility(View.GONE); } else { mCoverart.setVisibility(View.VISIBLE); mCoverart.setImageDrawable(d); } mTitle.setSelected(true); mArtist.setSelected(true); CharSequence trackName = mService.getTrackName(); CharSequence artistName = mService.getArtistName(); if (trackName == null || trackName.equals(Media.UNKNOWN_STRING)) { mTitle.setText(R.string.widget_one_track_info_unavailable); } else { mTitle.setText(trackName); } if (artistName == null || artistName.equals(Media.UNKNOWN_STRING)) { artistName = mService.getMediaUri(); } mArtist.setText(artistName); if (mPreviousButton != null) { mPreviousButton.setImageResource(R.drawable.btn_player_prev); mPreviousButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { try { mService.prev(); } catch (RemoteException e) { } } }); } mPauseButton.setVisibility(View.VISIBLE); if (mService.isPlaying()) { mPauseButton.setImageResource(R.drawable.btn_playerpreview_pause); } else { mPauseButton.setImageResource(R.drawable.btn_playerpreview_play); } mPauseButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { try { if (mService.isPlaying()) { mService.pause(); } else { mService.play(); } } catch (RemoteException e) { } } }); if (mNextButton != null) { mNextButton.setImageResource(R.drawable.btn_player_next); mNextButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { try { mService.next(); } catch (RemoteException e) { } } }); } if (mNowPlayingView.getVisibility() != View.VISIBLE) { Animation fade_in = AnimationUtils.loadAnimation(getActivity(), R.anim.player_in); mNowPlayingView.startAnimation(fade_in); } mNowPlayingView.setVisibility(View.VISIBLE); mNowPlayingView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Context c = v.getContext(); c.startActivity(new Intent(c, MediaPlayerActivity.class)); } }); return; } } catch (RemoteException ex) { } Animation fade_out = AnimationUtils.loadAnimation(getActivity(), R.anim.player_out); mNowPlayingView.startAnimation(fade_out); mNowPlayingView.setVisibility(View.GONE); } }