PlayersAdapter.java

/*
 * Copyright (C) 2015 Arles. All rights reserved.
 * <p/>
 * 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
 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p/>
 * 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.arles.swissmanager.ui.adapter;

import android.support.v7.widget.RecyclerView;
import android.util.SparseBooleanArray;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.arles.swissmanager.R;
import com.arles.swissmanager.tournament.Player;
import com.arles.swissmanager.utils.CollectionValidator;

import java.util.ArrayList;
import java.util.List;

import butterknife.ButterKnife;
import butterknife.InjectView;

/**
 * PlayersAdapter manages Players data model and adapts it to RecyclerView, which is in PlayerTabFragment.
 * Created by Admin on 21.05.2015.
 */
public class PlayersAdapter extends RecyclerView.Adapter<PlayersAdapter.ViewHolder> {

    private List<Player> mPlayers = new ArrayList<>();
    private SparseBooleanArray mSelectedItems = new SparseBooleanArray();

    public PlayersAdapter(List<Player> list) {
        mPlayers = list;
    }

    public void setData(List<Player> list) {
        CollectionValidator.validateOnNull(list);
        mPlayers = list;
        notifyDataSetChanged();
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View itemView = LayoutInflater.from(parent.getContext()).inflate(
                R.layout.recyclerview_player_adapter_item, parent, false);
        return new ViewHolder(itemView);
    }

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        Player playerItem = mPlayers.get(position);
        holder.mTextView.setText(playerItem.getName());
        holder.mLogoView.setText(Integer.toString(playerItem.getPrestige()));
        holder.itemView.setActivated(mSelectedItems.get(position, false));
    }

    @Override
    public int getItemCount() {
        return (mPlayers != null) ? mPlayers.size() : 0;
    }

    public List<Player> getData() {
        return mPlayers;
    }

    public void toggleSelection(int position) {
        if(mSelectedItems.get(position, false)) {
            mSelectedItems.delete(position);
        } else {
            mSelectedItems.put(position, true);
        }
        notifyItemChanged(position);
    }

    public void clearSelection() {
        mSelectedItems.clear();
        notifyDataSetChanged();
    }

    public int getSelectedItemCount() {
        return mSelectedItems.size();
    }

    public List<Integer> getSelectedItems() {
        List<Integer> items = new ArrayList<>(mSelectedItems.size());
        for(int i = 0; i < mSelectedItems.size(); ++i) {
            items.add(mSelectedItems.keyAt(i));
        }
        return items;
    }

    public class ViewHolder extends RecyclerView.ViewHolder {

        @InjectView(R.id.text_view_player_name_item) TextView mTextView;
        @InjectView(R.id.text_view_player_logo) TextView mLogoView;

        public ViewHolder(View view) {
            super(view);
            ButterKnife.inject(this, view);
        }
    }
}