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.bluros.music.fragments; import android.graphics.Bitmap; import android.graphics.Color; import android.graphics.drawable.Drawable; import android.os.AsyncTask; import android.os.Bundle; import android.os.Handler; import android.support.design.widget.AppBarLayout; import android.support.design.widget.CollapsingToolbarLayout; import android.support.v4.app.Fragment; import android.support.v7.app.ActionBar; import android.support.v7.app.AppCompatActivity; import android.support.v7.graphics.Palette; import android.support.v7.widget.Toolbar; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import com.bluros.music.R; import com.bluros.music.dataloaders.ArtistLoader; import com.bluros.music.lastfmapi.LastFmClient; import com.bluros.music.lastfmapi.callbacks.ArtistInfoListener; import com.bluros.music.lastfmapi.models.ArtistQuery; import com.bluros.music.lastfmapi.models.LastfmArtist; import com.bluros.music.models.Artist; import com.bluros.music.utils.ATEUtils; import com.bluros.music.utils.Constants; import com.bluros.music.utils.Helpers; import com.bluros.music.utils.ImageUtils; import com.nostra13.universalimageloader.core.DisplayImageOptions; import com.nostra13.universalimageloader.core.ImageLoader; import com.nostra13.universalimageloader.core.listener.SimpleImageLoadingListener; public class ArtistDetailFragment extends Fragment { long artistID = -1; ImageView artistArt; Toolbar toolbar; CollapsingToolbarLayout collapsingToolbarLayout; AppBarLayout appBarLayout; boolean largeImageLoaded = false; int primaryColor = -1; public static ArtistDetailFragment newInstance(long id, boolean useTransition, String transitionName) { ArtistDetailFragment fragment = new ArtistDetailFragment(); Bundle args = new Bundle(); args.putLong(Constants.ARTIST_ID, id); args.putBoolean("transition", useTransition); if (useTransition) args.putString("transition_name", transitionName); fragment.setArguments(args); return fragment; } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); if (getArguments() != null) { artistID = getArguments().getLong(Constants.ARTIST_ID); } } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.fragment_artist_detail, container, false); artistArt = (ImageView) rootView.findViewById(R.id.artist_art); collapsingToolbarLayout = (CollapsingToolbarLayout) rootView.findViewById(R.id.collapsing_toolbar); appBarLayout = (AppBarLayout) rootView.findViewById(R.id.app_bar); if (getArguments().getBoolean("transition")) { artistArt.setTransitionName(getArguments().getString("transition_name")); } toolbar = (Toolbar) rootView.findViewById(R.id.toolbar); setupToolbar(); setUpArtistDetails(); getChildFragmentManager().beginTransaction() .replace(R.id.container, ArtistMusicFragment.newInstance(artistID)).commit(); return rootView; } private void setupToolbar() { ((AppCompatActivity) getActivity()).setSupportActionBar(toolbar); final ActionBar ab = ((AppCompatActivity) getActivity()).getSupportActionBar(); ab.setDisplayShowTitleEnabled(false); ab.setDisplayHomeAsUpEnabled(true); } private void setUpArtistDetails() { final Artist artist = ArtistLoader.getArtist(getActivity(), artistID); collapsingToolbarLayout.setTitle(artist.name); LastFmClient.getInstance(getActivity()).getArtistInfo(new ArtistQuery(artist.name), new ArtistInfoListener() { @Override public void artistInfoSucess(final LastfmArtist artist) { if (artist != null) { ImageLoader.getInstance().displayImage(artist.mArtwork.get(4).mUrl, artistArt, new DisplayImageOptions.Builder().cacheInMemory(true).cacheOnDisk(true) .showImageOnFail(R.drawable.ic_empty_music2).build(), new SimpleImageLoadingListener() { @Override public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) { largeImageLoaded = true; try { new Palette.Builder(loadedImage) .generate(new Palette.PaletteAsyncListener() { @Override public void onGenerated(Palette palette) { Palette.Swatch swatch = palette.getVibrantSwatch(); if (swatch != null) { primaryColor = swatch.getRgb(); collapsingToolbarLayout .setContentScrimColor(primaryColor); if (getActivity() != null) ATEUtils.setStatusBarColor(getActivity(), Helpers.getATEKey(getActivity()), primaryColor); } else { Palette.Swatch swatchMuted = palette .getMutedSwatch(); if (swatchMuted != null) { primaryColor = swatchMuted.getRgb(); collapsingToolbarLayout .setContentScrimColor(primaryColor); if (getActivity() != null) ATEUtils.setStatusBarColor( getActivity(), Helpers.getATEKey( getActivity()), primaryColor); } } } }); } catch (Exception ignored) { } } }); Handler handler = new Handler(); handler.postDelayed(new Runnable() { @Override public void run() { setBlurredPlaceholder(artist); } }, 100); } } @Override public void artistInfoFailed() { } }); } private void setBlurredPlaceholder(LastfmArtist artist) { ImageLoader.getInstance().loadImage(artist.mArtwork.get(1).mUrl, new SimpleImageLoadingListener() { @Override public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) { if (getActivity() != null && !largeImageLoaded) new setBlurredAlbumArt().execute(loadedImage); } }); } @Override public void onResume() { super.onResume(); toolbar.setBackgroundColor(Color.TRANSPARENT); if (primaryColor != -1 && getActivity() != null) { collapsingToolbarLayout.setContentScrimColor(primaryColor); String ateKey = Helpers.getATEKey(getActivity()); ATEUtils.setStatusBarColor(getActivity(), ateKey, primaryColor); } } private class setBlurredAlbumArt extends AsyncTask<Bitmap, Void, Drawable> { @Override protected Drawable doInBackground(Bitmap... loadedImage) { Drawable drawable = null; try { drawable = ImageUtils.createBlurredImageFromBitmap(loadedImage[0], getActivity(), 3); } catch (Exception e) { e.printStackTrace(); } return drawable; } @Override protected void onPostExecute(Drawable result) { if (result != null && !largeImageLoaded) { artistArt.setImageDrawable(result); } } @Override protected void onPreExecute() { } } }