assistant-android/app/src/main/java/com/gh/gamecenter/adapter/CommentDetailAdapter.java

package com.gh.gamecenter.adapter;

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.RecyclerView.ViewHolder;
import android.view.View;
import android.view.ViewGroup;

import com.gh.common.constant.ItemViewType;
import com.gh.common.util.CommentUtils;
import com.gh.gamecenter.R;
import com.gh.gamecenter.adapter.viewholder.CommentViewHolder;
import com.gh.gamecenter.adapter.viewholder.FooterViewHolder;
import com.gh.gamecenter.entity.CommentEntity;
import com.gh.gamecenter.retrofit.Response;
import com.gh.gamecenter.retrofit.RetrofitManager;
import com.lightgame.adapter.BaseRecyclerAdapter;
import com.lightgame.utils.Utils;

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

import retrofit2.HttpException;
import rx.android.schedulers.AndroidSchedulers;
import rx.schedulers.Schedulers;

/**
 * Created by khy on 2017/3/22.
 */
public class CommentDetailAdapter extends BaseRecyclerAdapter<ViewHolder> {

    private List<CommentEntity> mCommentList;

    private String mCommentId;

    private boolean mIsOver;
    private boolean mIsLoading;
    private boolean mIsNetworkError;

    public CommentDetailAdapter(Context context, String commentId) {
        super(context);
        mCommentId = commentId;

        mCommentList = new ArrayList<>();

        loadData(0);
    }

    public void loadData(int offset) {
        mIsLoading = true;
        RetrofitManager.getInstance(mContext).getApi()
                .getCommentTrace(mCommentId, 20, offset)
                .subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(new Response<List<CommentEntity>>() {
                    @Override
                    public void onResponse(List<CommentEntity> response) {
                        super.onResponse(response);
                        mCommentList.addAll(response);

                        if (response.size() < 20) {
                            mIsOver = true;
                        }

                        mIsLoading = false;
                        notifyItemRangeChanged(0, getItemCount() - 1);
                    }

                    @Override
                    public void onFailure(HttpException e) {
                        super.onFailure(e);
                        Utils.toast(mContext, mContext.getString(R.string.comment_failure_hint));
                        mIsNetworkError = true;
                        mIsLoading = false;
                        notifyItemChanged(getItemCount() - 1);
                    }
                });
    }

    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        if (viewType == ItemViewType.LOADING) {
            View view = mLayoutInflater.inflate(R.layout.refresh_footerview, parent, false);
            return new FooterViewHolder(view);
        } else {
            View view = mLayoutInflater.inflate(R.layout.comment_item, parent, false);
            return new CommentViewHolder(view);
        }
    }

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
        if (holder instanceof CommentViewHolder) {
            initCommentViewHolder((CommentViewHolder) holder, position);
        } else if (holder instanceof FooterViewHolder) {
            initFooterViewHolder((FooterViewHolder) holder);
        }
    }

    @Override
    public int getItemViewType(int position) {
        if (position == getItemCount() - 1) {
            return ItemViewType.LOADING;
        }

        return 100;
    }

    @Override
    public int getItemCount() {
        return mCommentList.size() + 1;
    }

    private void initCommentViewHolder(final CommentViewHolder holder, int position) {
        final CommentEntity commentEntity = mCommentList.get(position);

        holder.commentLine.setVisibility(View.GONE);
        holder.commentLineBottom.setVisibility(View.VISIBLE);

        CommentUtils.setCommentUserView(mContext, holder, commentEntity);

        CommentUtils.setCommentTime(holder.commentTimeTv, commentEntity.getTime());
        if (commentEntity.getParent() != null) {
            holder.commentContentTv.setText("@dsdasd" + commentEntity.getParent().getUser().getName() + ": " + commentEntity.getContent());
        } else {
            holder.commentContentTv.setText(commentEntity.getContent());
        }

        holder.commentLikeIv.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                CommentUtils.postVote(mContext, commentEntity, holder.commentLikeCountTv, holder.commentLikeIv, null);
            }
        });

    }

    private void initFooterViewHolder(FooterViewHolder holder) {
        if (mIsNetworkError) {
            holder.loading.setVisibility(View.GONE);
            holder.hint.setText(R.string.loading_error_network);
        } else if (!mIsOver) {
            holder.hint.setText(R.string.loading);
            holder.loading.setVisibility(View.VISIBLE);
        } else if (mCommentList.size() == 0) {
            holder.loading.setVisibility(View.GONE);
            holder.hint.setText(R.string.comment_empty);
        } else {
            holder.hint.setText(R.string.comment_nomore);
            holder.loading.setVisibility(View.GONE);
        }

    }

    public boolean isOver() {
        return mIsOver;
    }

    public boolean isLoading() {
        return mIsLoading;
    }
}