JokeFragment.java

package com.xiaweizi.qnews.fragment;

import android.graphics.Color;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.Toast;

import com.chad.library.adapter.base.BaseQuickAdapter;
import com.chad.library.adapter.base.listener.OnItemLongClickListener;
import com.xiaweizi.qnews.R;
import com.xiaweizi.qnews.adapter.JokeAdapter;
import com.xiaweizi.qnews.bean.JokeBean;
import com.xiaweizi.qnews.commons.Constants;
import com.xiaweizi.qnews.commons.ShareUtils;
import com.xiaweizi.qnews.net.QClitent;
import com.xiaweizi.qnews.net.QNewsService;

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

import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.OnClick;
import io.reactivex.android.schedulers.AndroidSchedulers;
import io.reactivex.functions.Consumer;
import io.reactivex.schedulers.Schedulers;

/**
 * 工程名：  QNews
 * 包名：    com.xiaweizi.qnews.fragment
 * 类名：    JokeFragment
 * 创建者：  夏韦子
 * 创建日期： 2017/2/11
 * 创建时间： 13:44
 */

public class JokeFragment extends Fragment {

    @BindView (R.id.tb_joke)
    Toolbar            tbJoke;
    @BindView (R.id.rv_joke)
    RecyclerView       rvJoke;
    @BindView (R.id.srl_joke)
    SwipeRefreshLayout srlJoke;
    @BindView (R.id.ll_loading)
    LinearLayout       llLoading;
    @BindView (R.id.ll_error)
    LinearLayout       llError;

    private JokeAdapter mAdapter;

    List<JokeBean.ResultBean.DataBean> mData;

    private int mCurrentCounter;
    private int mTotalCounter = 5;


    @Nullable
    @Override
    public View onCreateView(
            LayoutInflater inflater, @Nullable ViewGroup container,
            @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_joke, null);
        ButterKnife.bind(this, view);

        //数据初始化
        mData = new ArrayList<>();
        mAdapter = new JokeAdapter();
        mAdapter.openLoadAnimation(BaseQuickAdapter.SLIDEIN_RIGHT);

        //设置下拉刷新
        srlJoke.setColorSchemeColors(Color.RED, Color.GREEN, Color.YELLOW);
        srlJoke.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
            @Override
            public void onRefresh() {
                updateDate();
            }
        });

        rvJoke.setLayoutManager(new LinearLayoutManager(getActivity(),
                                                        LinearLayoutManager.VERTICAL,
                                                        false));
        rvJoke.setAdapter(mAdapter);
        rvJoke.addOnItemTouchListener(new OnItemLongClickListener() {
            @Override
            public void onSimpleItemLongClick(BaseQuickAdapter adapter, View view, int position) {
                String content = mAdapter.getItem(position).getContent();
                ShareUtils.share(getActivity(), content + "\n http://www.jianshu.com/u/d36586119d8c");
            }
        });

        mAdapter.setOnLoadMoreListener(new BaseQuickAdapter.RequestLoadMoreListener() {

            @Override
            public void onLoadMoreRequested() {
                rvJoke.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        if (mCurrentCounter >= mTotalCounter) {
                            //数据加载完成
                            mAdapter.loadMoreEnd();
                        } else {

                            if (mAdapter.getItem(0) == null) {
                                return;
                            }

                            long unixtime = mAdapter.getItem(mAdapter.getItemCount() - 2)
                                                    .getUnixtime();

                            QClitent.getInstance()
                                    .create(QNewsService.class, Constants.BASE_JOKE_URL) // 创建服务
                                    .getAssignJokeData(unixtime, 1, 5, QNewsService.DESC)
                                    .subscribeOn(Schedulers.io())
                                    .observeOn(AndroidSchedulers.mainThread())
                                    .subscribe(new Consumer<JokeBean>() {
                                        @Override
                                        public void accept(JokeBean jokeBean) throws Exception {
                                            List<JokeBean.ResultBean.DataBean> data
                                                    = jokeBean.getResult().getData();
                                            mAdapter.addData(data);
                                            mCurrentCounter = mTotalCounter;
                                            mTotalCounter += 5;
                                            mAdapter.loadMoreComplete();
                                        }
                                    }, new Consumer<Throwable>() {
                                        @Override
                                        public void accept(Throwable throwable) throws Exception {
                                            mAdapter.loadMoreFail();
                                        }
                                    });


                        }
                    }
                }, 1000);
            }
        });

        updateDate();

        return view;

    }

    private void updateDate() {
        srlJoke.setVisibility(View.VISIBLE);
        llLoading.setVisibility(View.VISIBLE);
        llError.setVisibility(View.GONE);

        srlJoke.setRefreshing(true);    // 让SwipeRefreshLayout开启刷新
        QClitent.getInstance().create(QNewsService.class, Constants.BASE_JOKE_URL) // 创建服务
                .getCurrentJokeData(1, 8)   // 查询查询
                .subscribeOn(Schedulers.io())   //  指定被观察者的操作在io线程中完成
                .observeOn(AndroidSchedulers.mainThread())  // 指定观察者接收到数据，然后在Main线程中完成
                .subscribe(new Consumer<JokeBean>() {
                    @Override
                    public void accept(JokeBean jokeBean) throws Exception {
                        // 成功获取数据
                        llLoading.setVisibility(View.GONE);
                        llError.setVisibility(View.GONE);
                        mAdapter.setNewData(jokeBean.getResult().getData());    // 给适配器设置数据
                        srlJoke.setRefreshing(false);       // 让SwipeRefreshLayout关闭刷新
                    }
                }, new Consumer<Throwable>() {
                    @Override
                    public void accept(Throwable throwable) throws Exception {
                        // 获取数据失败
                        Toast.makeText(getActivity(), "获取数据失败!" + "访问次数上限", Toast.LENGTH_SHORT)
                             .show();
                        srlJoke.setRefreshing(false);
                        llError.setVisibility(View.VISIBLE);
                        llLoading.setVisibility(View.GONE);
                        srlJoke.setVisibility(View.GONE);
                    }
                });
    }

    @OnClick (R.id.tv_joke_load_again)
    public void onClick(View view) {

        updateDate();
    }


}