PlaylistSongFragment.java

package com.nf2m.fragment;


import android.annotation.TargetApi;
import android.content.Intent;
import android.database.Cursor;
import android.os.Build;
import android.os.Bundle;
import android.provider.MediaStore;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.content.ContextCompat;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.helper.ItemTouchHelper;
import android.view.View;

import com.nf2m.R;
import com.nf2m.activity.TarMediaPlayerActivity;
import com.nf2m.adapter.PlaylistSongCursorAdapter;
import com.nf2m.draganddrop.OnStartDragListener;
import com.nf2m.draganddrop.SimpleItemTouchHelperCallback;
import com.nf2m.listener.ActionItemClick;
import com.nf2m.listener.OnItemClickListener;
import com.nf2m.model.Library;
import com.nf2m.model.PlaylistSong;
import com.nf2m.preferences.Preferences;
import com.nf2m.service.MediaPlayerService;


public class PlaylistSongFragment extends BaseFragment implements ActionItemClick, OnItemClickListener, OnStartDragListener {

    private static final String KEY_PLAYLIST_ID = "playlist_id";
    private static final String KEY_PLAYLIST_NAME = "playlist_name";
    private RecyclerView lvSongList;
    private Library songs;
    private Cursor songCursor;
    private PlaylistSongCursorAdapter songAdapter;
    private int playlist_id;
    private ItemTouchHelper itemTouchHelper;
    private Preferences preferences;
    private boolean isReferencedToService = false;


    @TargetApi(Build.VERSION_CODES.KITKAT)
    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {


        Bundle data = getArguments();
        playlist_id = data.getInt(KEY_PLAYLIST_ID);
        String playlistName = data.getString(KEY_PLAYLIST_NAME);

        initLvSongList();
        initSongs();
        initSongCursor();
        initSongCursorAdapter();
        lvSongListSetSongAdapter();
        setListener();
        setSearchSelection(MediaStore.Audio.Playlists.Members.TITLE);

        setLayoutManager();

        initTouchHelper();


        if (songCursor.getCount() == 0) {
//            RelativeLayout noSongs = (RelativeLayout) view.findViewById(R.id.noSongs);
//            noSongs.setVisibility(View.VISIBLE);
            // TODO: 21/07/16 Hiç şarkı yoksa
        }

        preferences = Preferences.newInstance(getContext());


        if (songCursor.getCount() < 15) {
            fastScroller.setVisibility(View.GONE);
        }

        super.onViewCreated(view, savedInstanceState);


        ((TarMediaPlayerActivity) getActivity()).setActionBarTitle(playlistName);
    }


    private void initTouchHelper() {
        itemTouchHelper = new ItemTouchHelper(new SimpleItemTouchHelperCallback(songAdapter));
        itemTouchHelper.attachToRecyclerView(lvSongList);
    }

    private void setListener() {
        songAdapter.setOnItemClickListener(this);
    }

    private void lvSongListSetSongAdapter() {
        lvSongList.setAdapter(songAdapter);
        setLvLibraryList(lvSongList);
    }

    private void initSongCursor() {
        songCursor = songs.getCursor();
        setLibraryCursor(songCursor);
    }

    private void initSongCursorAdapter() {
        songAdapter = new PlaylistSongCursorAdapter(getActivity(), songCursor, this, songs);
        setLibraryAdapter(songAdapter);
    }

    private void initSongs() {
        songs = new PlaylistSong(getActivity(), playlist_id);
        setLibraries(songs);
    }

    private void initLvSongList() {
        lvSongList = (RecyclerView) view.findViewById(R.id.lvList);
    }

    @Nullable
    @Override
    public Cursor initSelectedItemCursor() {
        return null;
    }

    @Override
    public void actionClick(int position) {
        playSong(position);
    }

    @Override
    public void onItemClick(int position) {
        if (isFilter) {
            position = getPositionInMainCursor(position);
            searchView.clearFocus();
            searchView.onActionViewCollapsed();
            linearLayoutManager.scrollToPosition(position);
            actionClick(position);
        } else {
            actionClick(position);
        }
    }

    @Override
    public void onStartDrag(RecyclerView.ViewHolder viewHolder) {
        itemTouchHelper.startDrag(viewHolder);
    }

    @Override
    public void onClick(@NonNull View v) {
        switch (v.getId()) {
            case R.id.idFabPlay:
                if (PlaylistSongCursorAdapter.isItemDismiss) {
                    PlaylistSongCursorAdapter.isItemDismiss = false;
                } else if (!NowPlayingFragment.play_state.equalsIgnoreCase(NowPlayingFragment.PAUSE)) {
                    super.onClick(v);
                    playSong(0);
                } else {
                    super.onClick(v);
                }
                break;
            default:
                super.onClick(v);
                break;
        }

    }

    private void playSong(int position) {

        preferences.setPrefQueryUri(songs.getUri().toString());
        preferences.setPrefQueryWhere(getWhere());
        preferences.setPrefQuerySelectionArgs(getSelectionArray());

        MediaPlayerService.songsCursor = songCursor;
        isReferencedToService = true;

        preferences.setPrefSongPos(position);
        NowPlayingFragment.song_duration_state = 0;
        NowPlayingFragment.play_state = NowPlayingFragment.PAUSE;
        getActivity().sendBroadcast(new Intent(MediaPlayerService.ACTION_SONG_PLAY));
    }


    @Override
    public void onDestroy() {
        super.onDestroy();

        if (songCursor != null && !isReferencedToService) {
            songCursor.close();
        }
    }
}