Java tutorial
/* * Copyright 2014 Soichiro Kashima * * 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 com.av.remusic.fragmentnet; import android.app.Activity; import android.os.Bundle; import android.support.v4.app.Fragment; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.LinearLayoutManager; 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.RelativeLayout; import android.widget.TextView; import com.bilibili.magicasakura.widgets.TintImageView; import com.github.ksoichiro.android.observablescrollview.ObservableRecyclerView; import com.github.ksoichiro.android.observablescrollview.ObservableScrollViewCallbacks; import com.github.ksoichiro.android.observablescrollview.ScrollUtils; import com.av.remusic.R; import com.av.remusic.fragment.BaseFragment; import com.av.remusic.fragment.MoreFragment; import com.av.remusic.handler.HandlerUtil; import com.av.remusic.info.MusicInfo; import com.av.remusic.service.MusicPlayer; import com.av.remusic.uitl.IConstants; import java.util.ArrayList; import java.util.HashMap; public class ArtistInfoMusicFragment extends BaseFragment { ArrayList<MusicInfo> mList = new ArrayList<>(); PlaylistDetailAdapter mAdapter; public static Fragment getInstance(ArrayList<MusicInfo> mList) { ArtistInfoMusicFragment fragment = new ArtistInfoMusicFragment(); Bundle bundle = new Bundle(); bundle.putParcelableArrayList("list", mList); fragment.setArguments(bundle); return fragment; } public static final String ARG_INITIAL_POSITION = "ARG_INITIAL_POSITION"; ObservableRecyclerView recyclerView; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.fragment_recyclerview, container, false); if (getArguments() != null) { mList = getArguments().getParcelableArrayList("list"); } Activity parentActivity = getActivity(); recyclerView = (ObservableRecyclerView) view.findViewById(R.id.scroll); recyclerView.setLayoutManager(new LinearLayoutManager(mContext)); recyclerView.setHasFixedSize(true); mAdapter = new PlaylistDetailAdapter(getActivity(), mList); recyclerView.setAdapter(mAdapter); if (parentActivity instanceof ObservableScrollViewCallbacks) { // Scroll to the specified offset after layout Bundle args = getArguments(); if (args != null && args.containsKey(ARG_INITIAL_POSITION)) { final int initialPosition = args.getInt(ARG_INITIAL_POSITION, 0); ScrollUtils.addOnGlobalLayoutListener(recyclerView, new Runnable() { @Override public void run() { // recyclerView.scrollVerticallyToPosition(0); } }); } // TouchInterceptionViewGroup should be a parent view other than ViewPager. // This is a workaround for the issue #117: // https://github.com/ksoichiro/Android-ObservableScrollView/issues/117 recyclerView.setTouchInterceptionViewGroup((ViewGroup) parentActivity.findViewById(R.id.root)); recyclerView.setScrollViewCallbacks((ObservableScrollViewCallbacks) parentActivity); } return view; } @Override public void updateTrackInfo() { super.updateTrackInfo(); mAdapter.notifyDataSetChanged(); } class PlaylistDetailAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> { final static int FIRST_ITEM = 0; final static int ITEM = 1; private ArrayList<MusicInfo> arraylist; private Activity mContext; public PlaylistDetailAdapter(Activity context, ArrayList<MusicInfo> mList) { this.arraylist = mList; this.mContext = context; } @Override public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) { if (viewType == FIRST_ITEM) { return new CommonItemViewHolder(LayoutInflater.from(viewGroup.getContext()) .inflate(R.layout.artist_header_common_item, viewGroup, false)); } else { return new ItemViewHolder(LayoutInflater.from(viewGroup.getContext()) .inflate(R.layout.fragment_playlist_detail_item, viewGroup, false)); } } // @Override public int getItemViewType(int position) { return position == FIRST_ITEM ? FIRST_ITEM : ITEM; } @Override public void onBindViewHolder(final RecyclerView.ViewHolder itemHolder, final int i) { if (itemHolder instanceof ItemViewHolder) { final MusicInfo localItem = arraylist.get(i - 1); //??? if (MusicPlayer.getCurrentAudioId() == localItem.songId) { ((ItemViewHolder) itemHolder).trackNumber.setVisibility(View.GONE); ((ItemViewHolder) itemHolder).playState.setVisibility(View.VISIBLE); ((ItemViewHolder) itemHolder).playState.setImageResource(R.drawable.song_play_icon); ((ItemViewHolder) itemHolder).playState.setImageTintList(R.color.theme_color_primary); } else { ((ItemViewHolder) itemHolder).playState.setVisibility(View.GONE); ((ItemViewHolder) itemHolder).trackNumber.setVisibility(View.VISIBLE); ((ItemViewHolder) itemHolder).trackNumber.setText(i + ""); } ((ItemViewHolder) itemHolder).title.setText(localItem.musicName); ((ItemViewHolder) itemHolder).artist.setText(localItem.artist); ((ItemViewHolder) itemHolder).menu.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // if(localItem.islocal){ MoreFragment morefragment = MoreFragment.newInstance(arraylist.get(i - 1).songId + "", IConstants.MUSICOVERFLOW); morefragment.show(((AppCompatActivity) mContext).getSupportFragmentManager(), "music"); // return; // } // new AlertDialog.Builder(mContext).setTitle("???"). // setPositiveButton(mContext.getString(R.string.sure), new DialogInterface.OnClickListener() { // // @Override // public void onClick(DialogInterface dialog, int which) { // // Down.downMusic(MainApplication.context, localItem.songId + "", localItem.musicName); // dialog.dismiss(); // } // }). // setNegativeButton(mContext.getString(R.string.cancel), new DialogInterface.OnClickListener() { // @Override // public void onClick(DialogInterface dialog, int which) { // dialog.dismiss(); // } // }).show(); } }); } else if (itemHolder instanceof CommonItemViewHolder) { ((CommonItemViewHolder) itemHolder).textView.setText("(" + arraylist.size() + " songs)"); ((CommonItemViewHolder) itemHolder).select.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { } }); } } @Override public int getItemCount() { return arraylist == null ? 0 : arraylist.size() + 1; } public void updateDataSet(ArrayList<MusicInfo> arraylist) { this.arraylist = arraylist; this.notifyDataSetChanged(); } public class CommonItemViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener { TextView textView; ImageView select; RelativeLayout layout; CommonItemViewHolder(View view) { super(view); this.textView = (TextView) view.findViewById(R.id.play_all_number); this.select = (ImageView) view.findViewById(R.id.select); this.layout = (RelativeLayout) view.findViewById(R.id.play_all_layout); layout.setOnClickListener(this); } public void onClick(View v) { //// TODO: 2016/1/20 HandlerUtil.getInstance(mContext).postDelayed(new Runnable() { @Override public void run() { HashMap<Long, MusicInfo> infos = new HashMap<Long, MusicInfo>(); int len = arraylist.size(); long[] list = new long[len]; for (int i = 0; i < len; i++) { MusicInfo info = arraylist.get(i); list[i] = info.songId; infos.put(list[i], info); } MusicPlayer.playAll(infos, list, 0, false); } }, 70); } } public class ItemViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener { protected TextView title, artist, trackNumber; protected ImageView menu; TintImageView playState; public ItemViewHolder(View view) { super(view); this.title = (TextView) view.findViewById(R.id.song_title); this.artist = (TextView) view.findViewById(R.id.song_artist); this.trackNumber = (TextView) view.findViewById(R.id.trackNumber); this.menu = (ImageView) view.findViewById(R.id.popup_menu); this.playState = (TintImageView) view.findViewById(R.id.play_state); view.setOnClickListener(this); } @Override public void onClick(View v) { HandlerUtil.getInstance(mContext).postDelayed(new Runnable() { @Override public void run() { HashMap<Long, MusicInfo> infos = new HashMap<Long, MusicInfo>(); int len = arraylist.size(); long[] list = new long[len]; for (int i = 0; i < len; i++) { MusicInfo info = arraylist.get(i); list[i] = info.songId; infos.put(list[i], info); } if (getAdapterPosition() > 0) MusicPlayer.playAll(infos, list, getAdapterPosition() - 1, false); } }, 70); } } } }