package com.lzx.demo.ui; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.LinearLayoutManager; import android.support.v7.widget.Toolbar; import android.util.Log; import android.view.Menu; import android.view.MenuItem; import com.github.jdsjlzx.interfaces.OnNetWorkErrorListener; import com.github.jdsjlzx.interfaces.OnRefreshListener; import com.github.jdsjlzx.recyclerview.LRecyclerView; import com.github.jdsjlzx.recyclerview.LRecyclerViewAdapter; import com.github.jdsjlzx.recyclerview.ProgressStyle; import com.lzx.demo.R; import com.lzx.demo.adapter.CommentExpandAdapter; import com.lzx.demo.adapter.ExpandableRecyclerAdapter; import com.lzx.demo.base.CommentItem; import com.lzx.demo.bean.ItemModel; import com.lzx.demo.util.NetworkUtils; import com.lzx.demo.view.SampleHeader; import java.lang.ref.WeakReference; import java.util.ArrayList; /** * 带HeaderView的分页加载LinearLayout RecyclerView */ public class ExpandableRecyclerViewOneActivity extends AppCompatActivity { private static final String TAG = "lzx"; /**服务器端一共多少条数据*/ private static final int TOTAL_COUNTER = 24; /**每一页展示多少条数据*/ private static final int REQUEST_COUNT = 10; /**已经获取到多少条数据了*/ private static int mCurrentCounter = 0; private LRecyclerView mRecyclerView = null; private CommentExpandAdapter mDataAdapter = null; private PreviewHandler mHandler = new PreviewHandler(this); private LRecyclerViewAdapter mLRecyclerViewAdapter = null; private boolean isRefresh = false; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.sample_ll_activity); Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(toolbar); getSupportActionBar().setDisplayHomeAsUpEnabled(true); mRecyclerView = (LRecyclerView) findViewById(R.id.list); mDataAdapter = new CommentExpandAdapter(this,mRecyclerView); mDataAdapter.setMode(ExpandableRecyclerAdapter.MODE_ACCORDION); mLRecyclerViewAdapter = new LRecyclerViewAdapter(mDataAdapter); mRecyclerView.setAdapter(mLRecyclerViewAdapter); mRecyclerView.setLayoutManager(new LinearLayoutManager(this)); mRecyclerView.setRefreshProgressStyle(ProgressStyle.BallSpinFadeLoader); mRecyclerView.setArrowImageView(R.drawable.ic_pulltorefresh_arrow); mLRecyclerViewAdapter.addHeaderView(new SampleHeader(this)); mRecyclerView.setOnRefreshListener(new OnRefreshListener() { @Override public void onRefresh() { mCurrentCounter = 0; isRefresh = true; requestData(); } }); mRecyclerView.refresh(); //不要在调用下面代码 /*mLRecyclerViewAdapter.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(View view, int position) { //ItemModel item = mDataAdapter.getDataList().get(position); //AppToast.showShortText(ExpandableRecyclerViewOneActivity.this, item.title); } @Override public void onItemLongClick(View view, int position) { //ItemModel item = mDataAdapter.getDataList().get(position); //AppToast.showShortText(ExpandableRecyclerViewOneActivity.this, "onItemLongClick - " + item.title); } });*/ } private void notifyDataSetChanged() { mLRecyclerViewAdapter.notifyDataSetChanged(); } private void addItems(ArrayList<CommentItem> list) { mDataAdapter.setItems(list); mCurrentCounter += list.size(); } private class PreviewHandler extends Handler { private WeakReference<ExpandableRecyclerViewOneActivity> ref; PreviewHandler(ExpandableRecyclerViewOneActivity activity) { ref = new WeakReference<>(activity); } @Override public void handleMessage(Message msg) { final ExpandableRecyclerViewOneActivity activity = ref.get(); if (activity == null || activity.isFinishing()) { return; } switch (msg.what) { case -1: if(activity.isRefresh){ //activity.mDataAdapter.clear(); mCurrentCounter = 0; } int currentSize = activity.mDataAdapter.getItemCount(); //模拟组装10个数据 ArrayList<ItemModel> newList = new ArrayList<>(); for (int i = 0; i < 10; i++) { if (newList.size() + currentSize >= TOTAL_COUNTER) { break; } ItemModel item = new ItemModel(); item.id = currentSize + i; item.title = "item" + (item.id); newList.add(item); } activity.addItems(activity.mDataAdapter.getSampleItems()); activity.mRecyclerView.refreshComplete(10); activity.notifyDataSetChanged(); break; case -2: activity.notifyDataSetChanged(); break; case -3: activity.mRecyclerView.refreshComplete(10); activity.notifyDataSetChanged(); activity.mRecyclerView.setOnNetWorkErrorListener(new OnNetWorkErrorListener() { @Override public void reload() { requestData(); } }); break; default: break; } } } /** * 模拟请求网络 */ private void requestData() { Log.d(TAG, "requestData"); new Thread() { @Override public void run() { super.run(); try { Thread.sleep(800); } catch (InterruptedException e) { e.printStackTrace(); } //模拟一下网络请求失败的情况 if(NetworkUtils.isNetAvailable(ExpandableRecyclerViewOneActivity.this)) { mHandler.sendEmptyMessage(-1); } else { mHandler.sendEmptyMessage(-3); } } }.start(); } @Override public boolean onPrepareOptionsMenu(Menu menu) { super.onPrepareOptionsMenu(menu); menu.clear(); this.getMenuInflater().inflate(R.menu.menu_main_expand, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case android.R.id.home: finish(); return true; case R.id.action_expand_all: mDataAdapter.expandAll(); return true; case R.id.action_collapse_all: mDataAdapter.collapseAll(); return true; default: return true; } } }