Java tutorial
/* * Copyright (C) 2015 Naman Dwivedi * * Licensed under the GNU General Public License v3 * * This 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 software 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. */ package com.devalladolid.musictoday.subfragments; import android.content.Context; import android.graphics.Bitmap; import android.os.AsyncTask; import android.os.Bundle; import android.support.annotation.Nullable; import android.support.v4.app.Fragment; import android.util.Pair; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.TextView; import com.devalladolid.musictoday.R; import com.devalladolid.musictoday.dataloaders.LastAddedLoader; import com.devalladolid.musictoday.dataloaders.PlaylistLoader; import com.devalladolid.musictoday.dataloaders.PlaylistSongLoader; import com.devalladolid.musictoday.dataloaders.SongLoader; import com.devalladolid.musictoday.dataloaders.TopTracksLoader; import com.devalladolid.musictoday.models.Playlist; import com.devalladolid.musictoday.models.Song; import com.devalladolid.musictoday.utils.Constants; import com.devalladolid.musictoday.utils.NavigationUtils; import com.devalladolid.musictoday.utils.PreferencesUtility; import com.devalladolid.musictoday.utils.TimberUtils; import com.nostra13.universalimageloader.core.DisplayImageOptions; import com.nostra13.universalimageloader.core.ImageLoader; import com.nostra13.universalimageloader.core.listener.SimpleImageLoadingListener; import java.util.ArrayList; import java.util.List; import java.util.Random; public class PlaylistPagerFragment extends Fragment { private static final String ARG_PAGE_NUMBER = "pageNumber"; int[] foregroundColors = { R.color.pink_transparent, R.color.green_transparent, R.color.blue_transparent, R.color.red_transparent, R.color.purple_transparent }; private int pageNumber, songCountInt; private int foregroundColor; private long firstAlbumID = -1; private Playlist playlist; private TextView playlistame, songcount, playlistnumber, playlisttype; private ImageView playlistImage; private View foreground; private Context mContext; private boolean showAuto; public static PlaylistPagerFragment newInstance(int pageNumber) { PlaylistPagerFragment fragment = new PlaylistPagerFragment(); Bundle bundle = new Bundle(); bundle.putInt(ARG_PAGE_NUMBER, pageNumber); fragment.setArguments(bundle); return fragment; } @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { showAuto = PreferencesUtility.getInstance(getActivity()).showAutoPlaylist(); View rootView = inflater.inflate(R.layout.fragment_playlist_pager, container, false); final List<Playlist> playlists = PlaylistLoader.getPlaylists(getActivity(), showAuto); pageNumber = getArguments().getInt(ARG_PAGE_NUMBER); playlist = playlists.get(pageNumber); playlistame = (TextView) rootView.findViewById(R.id.name); playlistnumber = (TextView) rootView.findViewById(R.id.number); songcount = (TextView) rootView.findViewById(R.id.songcount); playlisttype = (TextView) rootView.findViewById(R.id.playlisttype); playlistImage = (ImageView) rootView.findViewById(R.id.playlist_image); foreground = rootView.findViewById(R.id.foreground); playlistImage.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { ArrayList<Pair> tranitionViews = new ArrayList<>(); tranitionViews.add(0, Pair.create((View) playlistame, "transition_playlist_name")); tranitionViews.add(1, Pair.create((View) playlistImage, "transition_album_art")); tranitionViews.add(2, Pair.create(foreground, "transition_foreground")); NavigationUtils.navigateToPlaylistDetail(getActivity(), getPlaylistType(), firstAlbumID, String.valueOf(playlistame.getText()), foregroundColor, playlist.id, tranitionViews); } }); mContext = this.getContext(); setUpPlaylistDetails(); return rootView; } @Override public void onViewCreated(View view, Bundle savedinstancestate) { new loadPlaylistImage().execute(""); } private void setUpPlaylistDetails() { playlistame.setText(playlist.name); int number = getArguments().getInt(ARG_PAGE_NUMBER) + 1; String playlistnumberstring; if (number > 9) { playlistnumberstring = String.valueOf(number); } else { playlistnumberstring = "0" + String.valueOf(number); } playlistnumber.setText(playlistnumberstring); Random random = new Random(); int rndInt = random.nextInt(foregroundColors.length); foregroundColor = foregroundColors[rndInt]; foreground.setBackgroundColor(foregroundColor); if (showAuto) { if (pageNumber <= 2) playlisttype.setVisibility(View.VISIBLE); } } private String getPlaylistType() { if (showAuto) { switch (pageNumber) { case 0: return Constants.NAVIGATE_PLAYLIST_LASTADDED; case 1: return Constants.NAVIGATE_PLAYLIST_RECENT; case 2: return Constants.NAVIGATE_PLAYLIST_TOPTRACKS; default: return Constants.NAVIGATE_PLAYLIST_USERCREATED; } } else return Constants.NAVIGATE_PLAYLIST_USERCREATED; } private class loadPlaylistImage extends AsyncTask<String, Void, String> { @Override protected String doInBackground(String... params) { if (getActivity() != null) { if (showAuto) { switch (pageNumber) { case 0: List<Song> lastAddedSongs = LastAddedLoader.getLastAddedSongs(getActivity()); songCountInt = lastAddedSongs.size(); if (songCountInt != 0) { firstAlbumID = lastAddedSongs.get(0).albumId; return TimberUtils.getAlbumArtUri(firstAlbumID).toString(); } else return "nosongs"; case 1: TopTracksLoader recentloader = new TopTracksLoader(getActivity(), TopTracksLoader.QueryType.RecentSongs); List<Song> recentsongs = SongLoader.getSongsForCursor(TopTracksLoader.getCursor()); songCountInt = recentsongs.size(); if (songCountInt != 0) { firstAlbumID = recentsongs.get(0).albumId; return TimberUtils.getAlbumArtUri(firstAlbumID).toString(); } else return "nosongs"; case 2: TopTracksLoader topTracksLoader = new TopTracksLoader(getActivity(), TopTracksLoader.QueryType.TopTracks); List<Song> topsongs = SongLoader.getSongsForCursor(TopTracksLoader.getCursor()); songCountInt = topsongs.size(); if (songCountInt != 0) { firstAlbumID = topsongs.get(0).albumId; return TimberUtils.getAlbumArtUri(firstAlbumID).toString(); } else return "nosongs"; default: List<Song> playlistsongs = PlaylistSongLoader.getSongsInPlaylist(getActivity(), playlist.id); songCountInt = playlistsongs.size(); if (songCountInt != 0) { firstAlbumID = playlistsongs.get(0).albumId; return TimberUtils.getAlbumArtUri(firstAlbumID).toString(); } else return "nosongs"; } } else { List<Song> playlistsongs = PlaylistSongLoader.getSongsInPlaylist(getActivity(), playlist.id); songCountInt = playlistsongs.size(); if (songCountInt != 0) { firstAlbumID = playlistsongs.get(0).albumId; return TimberUtils.getAlbumArtUri(firstAlbumID).toString(); } else return "nosongs"; } } else return "context is null"; } @Override protected void onPostExecute(String uri) { ImageLoader.getInstance().displayImage(uri, playlistImage, new DisplayImageOptions.Builder().cacheInMemory(true) .showImageOnFail(R.drawable.ic_empty_music2).resetViewBeforeLoading(true).build(), new SimpleImageLoadingListener() { @Override public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) { } }); songcount.setText(" " + String.valueOf(songCountInt) + " " + mContext.getString(R.string.songs)); } @Override protected void onPreExecute() { } } }