package com.lzx.demo.ui;
import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v4.widget.SwipeRefreshLayout;
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.MenuItem;
import android.view.View;
import android.widget.TextView;
import com.github.jdsjlzx.ItemDecoration.LuDividerDecoration;
import com.github.jdsjlzx.interfaces.OnItemClickListener;
import com.github.jdsjlzx.interfaces.OnItemLongClickListener;
import com.github.jdsjlzx.interfaces.OnLoadMoreListener;
import com.github.jdsjlzx.interfaces.OnNetWorkErrorListener;
import com.github.jdsjlzx.recyclerview.LuRecyclerView;
import com.github.jdsjlzx.recyclerview.LuRecyclerViewAdapter;
import com.lzx.demo.R;
import com.lzx.demo.base.ListBaseAdapter;
import com.lzx.demo.base.SuperViewHolder;
import com.lzx.demo.bean.ItemModel;
import com.lzx.demo.util.AppToast;
import com.lzx.demo.util.AppUtil;
import com.lzx.demo.util.NetworkUtils;
import com.lzx.demo.view.SampleHeader;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
/**
*结合SwipeRefreshLayout的分页加载LinearLayout RecyclerView
*/
public class SwipeRefreshLayoutActivity extends AppCompatActivity implements SwipeRefreshLayout.OnRefreshListener{
private static final String TAG = "lzx";
/**服务器端一共多少条数据*/
private static final int TOTAL_COUNTER = 34;
/**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 SwipeRefreshLayout mSwipeRefreshLayout;
private LuRecyclerView mRecyclerView = null;
private DataAdapter mDataAdapter = null;
private PreviewHandler mHandler = new PreviewHandler(this);
private LuRecyclerViewAdapter mLuRecyclerViewAdapter = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.sample_swpierefresh_activity);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
mSwipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_refresh_layout);
mRecyclerView = (LuRecyclerView) findViewById(R.id.list);
//设置刷新时动画的颜色，可以设置4个
if (mSwipeRefreshLayout != null) {
mSwipeRefreshLayout.setProgressViewOffset(false, 0, AppUtil.dip2px(this,48));
mSwipeRefreshLayout.setColorSchemeResources(android.R.color.holo_blue_light, android.R.color.holo_red_light, android.R.color.holo_orange_light, android.R.color.holo_green_light);
mSwipeRefreshLayout.setOnRefreshListener(this);
}
mDataAdapter = new DataAdapter(this);
//setLayoutManager放在setAdapter之前配置
mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
//GridLayoutManager manager = new GridLayoutManager(this, 2);
//mRecyclerView.setLayoutManager(manager);
mLuRecyclerViewAdapter = new LuRecyclerViewAdapter(mDataAdapter);
mRecyclerView.setAdapter(mLuRecyclerViewAdapter);
LuDividerDecoration divider = new LuDividerDecoration.Builder(this,mLuRecyclerViewAdapter)
.setHeight(R.dimen.default_divider_height)
.setPadding(R.dimen.default_divider_padding)
.setColorResource(R.color.split)
.build();
mRecyclerView.setHasFixedSize(true);
mRecyclerView.addItemDecoration(divider);
mLuRecyclerViewAdapter.addHeaderView(new SampleHeader(this));
//如果使用了自动加载更多，就不要添加FooterView了
//mLuRecyclerViewAdapter.addFooterView(new SampleFooter(this));
mLuRecyclerViewAdapter.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(View view, int position) {
ItemModel item = mDataAdapter.getDataList().get(position);
AppToast.showShortText(SwipeRefreshLayoutActivity.this, item.title);
}
});
mLuRecyclerViewAdapter.setOnItemLongClickListener(new OnItemLongClickListener() {
@Override
public void onItemLongClick(View view, int position) {
ItemModel item = mDataAdapter.getDataList().get(position);
AppToast.showShortText(SwipeRefreshLayoutActivity.this, "onItemLongClick - " + item.title);
}
});
mRecyclerView.setOnLoadMoreListener(new OnLoadMoreListener() {
@Override
public void onLoadMore() {
if (mCurrentCounter < TOTAL_COUNTER) {
// loading more
requestData();
} else {
//the end
mRecyclerView.setNoMore(true);
}
}
});
//设置底部加载颜色
mRecyclerView.setFooterViewColor(R.color.colorAccent, R.color.dark ,android.R.color.white);
//设置底部加载文字提示
mRecyclerView.setFooterViewHint("拼命加载中","已经全部为你呈现了","网络不给力啊，点击再试一次吧");
onRefresh();
}
@Override
public void onRefresh() {
mCurrentCounter = 0;
mSwipeRefreshLayout.setRefreshing(true);
mRecyclerView.setRefreshing(true);//同时调用LuRecyclerView的setRefreshing方法
requestData();
}
private void notifyDataSetChanged() {
mLuRecyclerViewAdapter.notifyDataSetChanged();
}
private void addItems(ArrayList<ItemModel> list) {
mDataAdapter.addAll(list);
mCurrentCounter += list.size();
}
private class PreviewHandler extends Handler {
private WeakReference<SwipeRefreshLayoutActivity> ref;
PreviewHandler(SwipeRefreshLayoutActivity activity) {
ref = new WeakReference<>(activity);
}
@Override
public void handleMessage(Message msg) {
final SwipeRefreshLayoutActivity activity = ref.get();
if (activity == null || activity.isFinishing()) {
return;
}
switch (msg.what) {
case -1:
if(activity.mSwipeRefreshLayout.isRefreshing()){
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 < 4; 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(newList);
if(mSwipeRefreshLayout.isRefreshing()){
activity.mSwipeRefreshLayout.setRefreshing(false);
}
activity.mRecyclerView.refreshComplete(REQUEST_COUNT);
activity.notifyDataSetChanged();
break;
case -3:
if(mSwipeRefreshLayout.isRefreshing()){
activity.mSwipeRefreshLayout.setRefreshing(false);
activity.mRecyclerView.refreshComplete(REQUEST_COUNT);
activity.notifyDataSetChanged();
}else {
activity.mRecyclerView.setOnNetWorkErrorListener(new OnNetWorkErrorListener() {
@Override
public void reload() {activity.mRecyclerView.refreshComplete(REQUEST_COUNT);
activity.notifyDataSetChanged();
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(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
//模拟一下网络请求失败的情况
if(NetworkUtils.isNetAvailable(SwipeRefreshLayoutActivity.this)) {
mHandler.sendEmptyMessage(-1);
} else {
mHandler.sendEmptyMessage(-3);
}
}
}.start();
}
private class DataAdapter extends ListBaseAdapter<ItemModel> {
public DataAdapter(Context context) {
super(context);
}
@Override
public int getLayoutId() {
return R.layout.list_item_text;
}
@Override
public void onBindItemHolder(SuperViewHolder holder, int position) {
ItemModel item = mDataList.get(position);
TextView titleText = holder.getView(R.id.info_text);
titleText.setText(item.title);
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item.getItemId() == android.R.id.home) {
finish();
}
return true;
}
}