package com.atguigu.beijingnews.detailpager;
import android.content.Context;
import android.content.Intent;
import android.os.Handler;
import android.os.Message;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.text.TextUtils;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import com.atguigu.baselibrary.CacheUtils;
import com.atguigu.baselibrary.Constants;
import com.atguigu.baselibrary.DensityUtil;
import com.atguigu.beijingnews.R;
import com.atguigu.beijingnews.activity.NewsDetailActivity;
import com.atguigu.beijingnews.adapter.TabDetailPagerAdapter;
import com.atguigu.beijingnews.base.MenuDetailBasePager;
import com.atguigu.beijingnews.bean.NewsCenterBean;
import com.atguigu.beijingnews.bean.TabDetailPagerBean;
import com.atguigu.beijingnews.view.HorizontalScrollViewPager;
import com.bumptech.glide.Glide;
import com.bumptech.glide.load.engine.DiskCacheStrategy;
import com.google.gson.Gson;
import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshListView;
import com.handmark.pulltorefresh.library.extras.SoundPullEventListener;
import org.xutils.common.Callback;
import org.xutils.http.RequestParams;
import org.xutils.x;
import java.util.List;
import butterknife.ButterKnife;
import butterknife.InjectView;
/**
* 作者：尚硅谷-杨光福 on 2017/2/6 15:26
* 微信：yangguangfu520
* QQ号：541433511
* 作用：xxxx
*/
public class TabDetailPager extends MenuDetailBasePager {
public static final String ID_ARRAY = "id_array";
private final NewsCenterBean.DataBean.ChildrenBean childrenBean;
@InjectView(R.id.pull_refresh_list)
PullToRefreshListView refreshListView;
ListView listview;
HorizontalScrollViewPager viewpager;
TextView tvTitle;
LinearLayout llGroupPoint;
private String url;
private TabDetailPagerAdapter adapter;
private int prePosition;
/**
* 列表数据
*/
private List<TabDetailPagerBean.DataEntity.NewsEntity> news;
/**
* 顶部轮播图的数据
*/
private List<TabDetailPagerBean.DataEntity.TopnewsEntity> topnews;
/**
* 更多的路径
*/
private String moreUrl;
/**
* 是否加载更多
*/
private boolean isLoadMore = false;
public TabDetailPager(Context context, NewsCenterBean.DataBean.ChildrenBean childrenBean) {
super(context);
this.childrenBean = childrenBean;
}
@Override
public View initView() {
//图组详情页面的视图
View view = View.inflate(mContext, R.layout.tab_detail_pager, null);
ButterKnife.inject(this, view);//ListView就被实例化了-->PullToRefreshListView被初始化了
listview = refreshListView.getRefreshableView();
// Button button =new Button(mContext);
// button.setText("我是头部的按钮哦");
View headerView = View.inflate(mContext, R.layout.header_view, null);
viewpager = (HorizontalScrollViewPager) headerView.findViewById(R.id.viewpager);
tvTitle = (TextView) headerView.findViewById(R.id.tv_title);
llGroupPoint = (LinearLayout) headerView.findViewById(R.id.ll_group_point);
listview.addHeaderView(headerView);
SoundPullEventListener<ListView> soundListener = new SoundPullEventListener<ListView>(mContext);
soundListener.addSoundEvent(PullToRefreshBase.State.PULL_TO_REFRESH, R.raw.pull_event);
soundListener.addSoundEvent(PullToRefreshBase.State.RESET, R.raw.reset_sound);
soundListener.addSoundEvent(PullToRefreshBase.State.REFRESHING, R.raw.refreshing_sound);
refreshListView.setOnPullEventListener(soundListener);
//设置下拉和上拉刷新
refreshListView.setOnRefreshListener(new MyOnRefreshListener2());
//设置ListView的item的点击事件
listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//得到Bean对象
TabDetailPagerBean.DataEntity.NewsEntity newsEntity = news.get(position-2);
String title = newsEntity.getTitle();
int ids = newsEntity.getId();
Log.e("TAG","tilet=="+title+",id=="+ids);
//1.获取是否已经存在,如果不存在才保存
String idArray = CacheUtils.getString(mContext, ID_ARRAY);//""-->1111,
//如果不包含才保存
if(!idArray.contains(ids+"")){
//保存点击过的item的对应的id
CacheUtils.putString(mContext,ID_ARRAY,idArray+ids+",");
adapter.notifyDataSetChanged();//getCount-->getView
//2.刷新适配器
}
//跳转到新闻的浏览页面
Intent intent = new Intent(mContext,NewsDetailActivity.class);
intent.putExtra("url",Constants.BASE_URL+newsEntity.getUrl());
mContext.startActivity(intent);
}
});
return view;
}
class MyOnRefreshListener2 implements PullToRefreshBase.OnRefreshListener2<ListView> {
@Override
public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView) {
//Toast.makeText(mContext, "下拉刷新", Toast.LENGTH_SHORT).show();
isLoadMore = false;
getDataFromNet();
}
@Override
public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView) {
// Toast.makeText(mContext, "上拉刷新", Toast.LENGTH_SHORT).show();
if(!TextUtils.isEmpty(moreUrl)){
isLoadMore = true;
getMoreDataFromNet();
}else{
Toast.makeText(mContext, "没有更多数据了", Toast.LENGTH_SHORT).show();
refreshListView.onRefreshComplete();
}
}
}
/**
* 请求更多数据
*/
private void getMoreDataFromNet() {
RequestParams params = new RequestParams(moreUrl);
x.http().get(params, new Callback.CommonCallback<String>() {
@Override
public void onSuccess(String result) {
Log.e("TAG", "请求更多数据成功==TabDetailPager==" + childrenBean.getTitle());
processData(result);
//把下拉刷新和上拉刷新隐藏
refreshListView.onRefreshComplete();
}
@Override
public void onError(Throwable ex, boolean isOnCallback) {
Log.e("TAG", "请求更多数据失败==TabDetailPager==" + ex.getMessage());
}
@Override
public void onCancelled(CancelledException cex) {
}
@Override
public void onFinished() {
}
});
}
@Override
public void initData() {
super.initData();
url = Constants.BASE_URL + childrenBean.getUrl();
Log.e("TAG", "TabDetailPager--url==" + url);
String saveJson = CacheUtils.getString(mContext,url);
if(!TextUtils.isEmpty(saveJson)){
processData(saveJson);
}
//设置数据
getDataFromNet();
}
private void getDataFromNet() {
RequestParams params = new RequestParams(url);
x.http().get(params, new Callback.CommonCallback<String>() {
@Override
public void onSuccess(String result) {
Log.e("TAG", "请求数据成功==TabDetailPager==" + childrenBean.getTitle());
CacheUtils.putString(mContext,url,result);
processData(result);
//把下拉刷新和上拉刷新隐藏
refreshListView.onRefreshComplete();
}
@Override
public void onError(Throwable ex, boolean isOnCallback) {
Log.e("TAG", "请求数据失败==TabDetailPager==" + ex.getMessage());
}
@Override
public void onCancelled(CancelledException cex) {
}
@Override
public void onFinished() {
}
});
}
private InternalHandler handler;
private void processData(String json) {
TabDetailPagerBean pagerBean = new Gson().fromJson(json, TabDetailPagerBean.class);
String more = pagerBean.getData().getMore();
if(TextUtils.isEmpty(more)){
moreUrl = "";
}else{
moreUrl = Constants.BASE_URL + more;
}
if(!isLoadMore){
//原来的代码
news = pagerBean.getData().getNews();
//设置适配器
adapter = new TabDetailPagerAdapter(mContext, news);
listview.setAdapter(adapter);
//设置顶部新闻（轮播图）
//设置Viewpager的适配器
topnews = pagerBean.getData().getTopnews();
viewpager.setAdapter(new MyPagerAdapter());
//监听ViewPager页面的变化
viewpager.addOnPageChangeListener(new MyOnPageChangeListener());
tvTitle.setText(topnews.get(prePosition).getTitle());
//把之前所有的移除
llGroupPoint.removeAllViews();
//添加红点
for (int i = 0; i < topnews.size(); i++) {
//添加到线性布局
ImageView point = new ImageView(mContext);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(-2, ViewGroup.LayoutParams.WRAP_CONTENT);
if(i!= 0){
//设置距离左边的距离
params.leftMargin = DensityUtil.dip2px(mContext,8);
point.setEnabled(false);
}else{
point.setEnabled(true);
}
point.setLayoutParams(params);
//设置图片背景选择器
point.setBackgroundResource(R.drawable.point_selector);
llGroupPoint.addView(point);
}
}else{
isLoadMore = false;
//更多
news.addAll(pagerBean.getData().getNews());
adapter.notifyDataSetChanged();
}
//顶部轮播图动态切换
if(handler ==null){
handler = new InternalHandler();
}
//把之前所有消息和任务移除
handler.removeCallbacksAndMessages(null);
handler.postDelayed(new MyRunnable(),3000);
}
class InternalHandler extends Handler{
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
//切换到下个页面
int item = (viewpager.getCurrentItem()+1)%topnews.size();
viewpager.setCurrentItem(item);
handler.postDelayed(new MyRunnable(),3000);
}
}
class MyRunnable implements Runnable{
@Override
public void run() {
handler.sendEmptyMessage(0);
}
}
class MyOnPageChangeListener implements ViewPager.OnPageChangeListener {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
//先把之前的变灰
llGroupPoint.getChildAt(prePosition).setEnabled(false);
//把当前变高亮
llGroupPoint.getChildAt(position).setEnabled(true);
prePosition = position;
}
@Override
public void onPageSelected(int position) {
tvTitle.setText(topnews.get(position).getTitle());
}
@Override
public void onPageScrollStateChanged(int state) {
if(state==ViewPager.SCROLL_STATE_DRAGGING){
handler.removeCallbacksAndMessages(null);
}else if(state==ViewPager.SCROLL_STATE_IDLE){
handler.removeCallbacksAndMessages(null);
handler.postDelayed(new MyRunnable(),3000);
}
}
}
class MyPagerAdapter extends PagerAdapter {
@Override
public int getCount() {
return topnews.size();
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view == object;
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
ImageView imageView = new ImageView(mContext);
imageView.setScaleType(ImageView.ScaleType.FIT_XY);
//设置默认的和联网请求
final TabDetailPagerBean.DataEntity.TopnewsEntity topnewsEntity = topnews.get(position);
//加载图片
Glide.with(mContext).load(Constants.BASE_URL + topnewsEntity.getTopimage())
.diskCacheStrategy(DiskCacheStrategy.ALL)
//设置默认图片
.placeholder(R.drawable.news_pic_default)
//请求图片失败
.error(R.drawable.news_pic_default)
.into(imageView);
//添加到ViewPager和返回
container.addView(imageView);
//设置触摸事件
imageView.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()){
case MotionEvent.ACTION_DOWN://按下
handler.removeCallbacksAndMessages(null);
break;
case MotionEvent.ACTION_UP://离开
handler.postDelayed(new MyRunnable(),3000);
break;
}
return false;
}
});
imageView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//跳转到新闻的浏览页面
Intent intent = new Intent(mContext,NewsDetailActivity.class);
intent.putExtra("url",Constants.BASE_URL+topnewsEntity.getUrl());
mContext.startActivity(intent);
}
});
return imageView;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((View) object);
}
}
}