Java tutorial
/* * Copyright (C) 2013 * * This file is part of Messic. * * 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.messic.android.smartphone.activities.main.fragments.queue; import android.app.Activity; import android.content.ContentValues; import android.content.DialogInterface; import android.content.Intent; import android.databinding.DataBindingUtil; import android.graphics.Bitmap; import android.graphics.Color; import android.graphics.drawable.BitmapDrawable; import android.net.Uri; import android.os.Bundle; import android.provider.MediaStore; import android.support.v4.app.ActivityOptionsCompat; import android.support.v4.app.Fragment; import android.support.v4.widget.SwipeRefreshLayout; import android.support.v7.app.AlertDialog; import android.support.v7.widget.RecyclerView; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.ProgressBar; import android.widget.Toast; import org.messic.android.R; import org.messic.android.databinding.FragmentPlayqueueBinding; import org.messic.android.messiccore.MessicCoreApp; import org.messic.android.messiccore.controllers.Configuration; import org.messic.android.messiccore.datamodel.MDMAlbum; import org.messic.android.messiccore.datamodel.MDMPlaylist; import org.messic.android.messiccore.datamodel.MDMSong; import org.messic.android.messiccore.player.PlayerEventListener; import org.messic.android.messiccore.util.UtilFile; import org.messic.android.messiccore.util.UtilMusicPlayer; import org.messic.android.smartphone.MessicSmartphoneApp; import org.messic.android.smartphone.activities.albuminfo.AlbumInfoActivity; import org.messic.android.smartphone.rxevents.RxAction; import org.messic.android.smartphone.rxevents.RxDispatcher; import org.messic.android.smartphone.utils.WrapContentLinearLayoutManager; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.net.URL; import javax.inject.Inject; import rx.Observable; import rx.Subscription; import rx.android.schedulers.AndroidSchedulers; import rx.functions.Action0; import rx.functions.Action1; import rx.schedulers.Schedulers; public class PlayQueueFragment extends Fragment implements PlayQueueSongViewHolder.IViewHolderClicks, PlayerEventListener { @Inject PlayQueuePresenter presenter; @Inject PlayQueueSongAdapter mAdapter; @Inject UtilMusicPlayer ump; @Inject Configuration config; private SwipeRefreshLayout swipeRefreshLayout; private Subscription subscription; private Action1<MDMSong> playqueueSongsOnNext = new Action1<MDMSong>() { @Override public void call(MDMSong song) { mAdapter.addSong(song); } }; private RecyclerView mRecycler; private ProgressBar mProgressBar; private Action1<Throwable> playqueueSongsOnError = new Action1<Throwable>() { @Override public void call(Throwable throwable) { mProgressBar.setVisibility(View.GONE); swipeRefreshLayout.setRefreshing(false); Toast.makeText(getContext(), "Server Error", Toast.LENGTH_SHORT).show(); } }; private Action0 playqueueSongsOnCompleted = new Action0() { @Override public void call() { mAdapter.notifyDataSetChanged(); mProgressBar.setVisibility(View.GONE); swipeRefreshLayout.setRefreshing(false); } }; private FragmentPlayqueueBinding binding; @Override public void onStart() { super.onStart(); if (this.mAdapter.getItemCount() == 0) { updateSongs(); } else { mProgressBar.setVisibility(View.GONE); } } private void updateSongs() { Activity activity = getActivity(); if (activity != null) { activity.runOnUiThread(new Runnable() { @Override public void run() { mProgressBar.setVisibility(View.VISIBLE); mAdapter.clear(); Observable<MDMSong> observable = presenter.getQueueSongs(); observable.subscribeOn(Schedulers.io()).onBackpressureBuffer() .observeOn(AndroidSchedulers.mainThread()) .subscribe(playqueueSongsOnNext, playqueueSongsOnError, playqueueSongsOnCompleted); } }); } } @Override public void onResume() { super.onResume(); this.presenter.resume(); if (this.subscription != null) RxDispatcher.get().unsubscribe(this.subscription); this.subscription = subscribe(); } @Override public void onPause() { super.onPause(); this.presenter.pause(); RxDispatcher.get().unsubscribe(this.subscription); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { super.onCreateView(inflater, container, savedInstanceState); // Perform injection so that when this call returns all dependencies will be available for use. ((MessicSmartphoneApp) MessicCoreApp.getInstance()).getSmartphoneComponent().inject(this); View view = bindData(inflater, container, savedInstanceState); setupLayout(); this.presenter.initialize(); return view; } private Subscription subscribe() { return RxDispatcher.get().subscribe(new RxDispatcher.RxSubscriber() { public void call(RxAction event) { // if (event.isType(RandomEvents.EVENT_SONG_ADDED)) { // MDMSong song = (MDMSong) event.getSimpleData(); // Toast.makeText(getActivity(), getResources().getText(R.string.player_added) + song.getName(), // Toast.LENGTH_SHORT).show(); // } } }); } /** * Binding information form the layout to objects */ private View bindData(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { this.binding = DataBindingUtil.inflate(inflater, R.layout.fragment_playqueue, container, false); View view = inflater.inflate(R.layout.fragment_random, container, false); this.mAdapter.setListener(this); this.mAdapter.setCurrentSong(ump.getCursor()); mRecycler = (RecyclerView) view.findViewById(R.id.random_recyclerview); mRecycler.setLayoutManager(new WrapContentLinearLayoutManager(this.getActivity())); mRecycler.setAdapter(this.mAdapter); this.mProgressBar = (ProgressBar) view.findViewById(R.id.random_progress); this.swipeRefreshLayout = (SwipeRefreshLayout) view.findViewById(R.id.random_swipe); this.swipeRefreshLayout.setColorSchemeColors(Color.GREEN); this.swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() { public void onRefresh() { updateSongs(); } }); // LoginActivityBindingImpl user; // if (savedInstanceState == null) { // user = new LoginActivityBindingImpl("", "", true, "ccc", "dddd"); // } else { // user = Parcels.unwrap(savedInstanceState.getParcelable(BINDING_PARCEL)); // } this.binding.setEvents(this); ump.addListener(this); return view; } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); //outState.putParcelable(BINDING_PARCEL, Parcels.wrap(this.binding.getUser())); } /** * setting up the layout of the activity. * Here you must put elements, remove elements, manage events, ... */ private void setupLayout() { } @Override public void onPlayAction(View caller, PlayQueueSongViewHolder holder) { this.presenter.playAction(holder.getAdapterPosition()); } @Override public void onAuthor(View caller, PlayQueueSongViewHolder holder) { this.presenter.authorAction(holder.song); showAlbumInfo(holder.icover, holder.song.getAlbum()); } /** * Show the AlbumInfo Activity * * @param cover * @param album */ private void showAlbumInfo(final ImageView cover, MDMAlbum album) { Observable<MDMAlbum> observable = presenter.getAlbum(album); observable.subscribeOn(Schedulers.io()).onBackpressureBuffer().observeOn(AndroidSchedulers.mainThread()) .subscribe(new Action1<MDMAlbum>() { @Override public void call(MDMAlbum mdmAlbum) { //lets show the albuminfoactivity Intent ssa = new Intent(getActivity(), AlbumInfoActivity.class); ssa.putExtra(AlbumInfoActivity.EXTRA_ALBUM_SID, mdmAlbum); Bitmap bitmap = ((BitmapDrawable) cover.getDrawable()).getBitmap(); AlbumInfoActivity.defaultArt = bitmap; //ssa.putExtra(AlbumInfoActivity.EXTRA_ALBUM_ART, bitmap); ActivityOptionsCompat options = ActivityOptionsCompat .makeSceneTransitionAnimation(getActivity(), cover, "cover"); getActivity().startActivity(ssa, options.toBundle()); } }); } @Override public void onRemoveAction(View caller, PlayQueueSongViewHolder holder) { final int index = holder.getAdapterPosition(); this.presenter.removeAction(index); mAdapter.removeSong(index); if (index < this.mAdapter.getCurrentSong()) { this.mAdapter.setCurrentSong(this.mAdapter.getCurrentSong() - 1); } getActivity().runOnUiThread(new Runnable() { public void run() { mAdapter.notifyItemRemoved(index); } }); } @Override public void onShareAction(View itemView, final PlayQueueSongViewHolder holder) { AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()); builder.setTitle(getString(R.string.share_song)); builder.setMessage(getString(R.string.share_song_select)).setCancelable(true) .setPositiveButton(getString(R.string.share_song_select_audio), new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { shareAudio(holder); } }) .setNegativeButton(getString(R.string.share_song_select_text), new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { shareTextRecommendation(holder); } }) .setNeutralButton(getString(R.string.share_cancel), new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.cancel(); } }); AlertDialog alertDialog = builder.create(); alertDialog.show(); } private void shareTextRecommendation(PlayQueueSongViewHolder holder) { Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND); sharingIntent.setType("text/plain"); String shareBody = getString(R.string.share_song_text_start) + " \"" + holder.song.getName() + "\" " + getString(R.string.share_song_text_album) + " \"" + holder.song.getAlbum().getName() + "\"" + getString(R.string.share_song_text_of) + "\"" + holder.song.getAlbum().getAuthor().getName() + "\"" + " (I <3 messic)"; sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, getString(R.string.share_subject)); sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, shareBody); startActivity(Intent.createChooser(sharingIntent, getString(R.string.share_by))); } private void shareAudio(PlayQueueSongViewHolder holder) { File songPath = null; try { if (holder.song.isDownloaded(config)) { String folderPath = holder.song.calculateExternalStorageFolder(); String filePath = folderPath + "/" + holder.song.calculateExternalFilename(); songPath = new File(filePath); } else { //we create the tmp file at the messic folder String tmpFile = UtilFile.getMessicOfflineFolderAbsolutePath() + "/.tmp"; File outputDir = new File(tmpFile); outputDir.mkdirs(); outputDir = new File(tmpFile + "/share.mp3"); if (outputDir.exists()) outputDir.delete(); String sharePath = holder.song.getURL(config); URL url = new URL(sharePath); InputStream is = url.openStream(); FileOutputStream fos = new FileOutputStream(outputDir); byte[] b = new byte[1024]; int length; while ((length = is.read(b)) != -1) { fos.write(b, 0, length); } is.close(); fos.close(); songPath = outputDir; } Uri uriOld = Uri.parse(songPath.getAbsolutePath()); Uri uri2 = MediaStore.Audio.Media.getContentUriForPath(songPath.getAbsolutePath()); ContentValues values = new ContentValues(); values.put(MediaStore.MediaColumns.TITLE, holder.song.getName()); values.put(MediaStore.MediaColumns.MIME_TYPE, "audio/mp3"); values.put(MediaStore.MediaColumns.DATA, songPath.getAbsolutePath()); values.put(MediaStore.Audio.Media.DATA, songPath.getAbsolutePath()); values.put(MediaStore.Audio.Media.ARTIST, holder.song.getAlbum().getAuthor().getName()); values.put(MediaStore.Audio.Media.ALBUM, holder.song.getAlbum().getName()); values.put(MediaStore.Audio.Media.IS_RINGTONE, false); values.put(MediaStore.Audio.Media.IS_NOTIFICATION, true); values.put(MediaStore.Audio.Media.IS_ALARM, false); values.put(MediaStore.Audio.Media.IS_MUSIC, true); Uri newUri = getActivity().getContentResolver().insert(uri2, values); Intent share = new Intent(Intent.ACTION_SEND_MULTIPLE); share.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); share.setType("audio/*"); String shareBody = getString(R.string.share_song_text_start) + " \"" + holder.song.getName() + "\" " + getString(R.string.share_song_text_album) + " \"" + holder.song.getAlbum().getName() + "\"" + getString(R.string.share_song_text_of) + "\"" + holder.song.getAlbum().getAuthor().getName() + "\"" + " (I <3 messic)"; share.putExtra(android.content.Intent.EXTRA_SUBJECT, getString(R.string.share_subject)); share.putExtra(android.content.Intent.EXTRA_TEXT, shareBody); // ArrayList<Uri> uris = new ArrayList<>(); // uris.add(uri); //share.putParcelableArrayListExtra(Intent.EXTRA_STREAM, uris); share.putExtra(Intent.EXTRA_STREAM, uriOld); startActivity(Intent.createChooser(share, getString(R.string.share_by))); } catch (IOException e) { e.printStackTrace(); } } @Override public void paused(MDMSong song, int index) { } @Override public void playing(MDMSong song, boolean resumed, int index) { this.mAdapter.setCurrentSong(index); if (!resumed && isVisible()) { getActivity().runOnUiThread(new Runnable() { public void run() { mAdapter.notifyDataSetChanged(); } }); } } @Override public void completed(int index) { } @Override public void added(MDMSong song) { updateSongs(); } @Override public void added(MDMAlbum album) { updateSongs(); } @Override public void added(MDMPlaylist playlist) { updateSongs(); } @Override public void removed(MDMSong song) { //we deal this directly } @Override public void empty() { updateSongs(); } @Override public void connected() { updateSongs(); } @Override public void disconnected() { } }