package com.example.login_register;
import static baseinfo.Connectinfo.contexturl;
import static baseinfo.Connectinfo.lunbotuurl;
import static baseinfo.Connectinfo.newstitleurl;
import static baseinfo.Connectinfo.newsurl;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.text.Html;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.baseAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import com.bumptech.glide.Glide;
import com.google.gson.Gson;
import com.youth.banner.Banner;
import com.youth.banner.loader.ImageLoader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import Lunbotu.LunbotuData;
import NewsTitle.NewsTitleData;
import NewsTitle.NewsTitleDataBean;
import Redianzhuanti.Redian_left;
import Redianzhuanti.Redian_right;
import Xinwen.Const;
import Xinwen.XinwenData;
import Xinwen.XinwenDataBean;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
public class Home extends Fragment {
Banner banner;
ListView listView;
LinearLayout list_linear;
OkHttpClient okHttpClient;
Handler handler;
ArrayList lunbotulist = new ArrayList<>();
ArrayList alldata = new ArrayList<>();
ArrayList tabdata = new ArrayList<>();
XinwenData xinwenData;
TextView t1, t2, t3, t4, t5, t6;
TextView[] titlelist = {t1, t2, t3, t4, t5, t6};
int[] title_id = {R.id.tv1, R.id.tv2, R.id.tv3, R.id.tv4, R.id.tv5, R.id.tv6};
//专题新闻文本
LinearLayout left_news, right_news;
TextView redain_left_info, redain_right_info;
TextView[] arr_redian_info = {redain_left_info, redain_right_info};
int[] arr_redain_textid = {R.id.redain_left_info, R.id.redain_right_info};
ImageView redain_left_img, redain_right_img;
ImageView[] arr_redian_img = {redain_left_img, redain_right_img};
int[] arr_redian_imgid = {R.id.redain_left, R.id.redain_right};
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.home, container, false);
banner = view.findViewById(R.id.banner);
listView = view.findViewById(R.id.list);
list_linear = view.findViewById(R.id.list_linear);
handler = new Handler(Looper.getMainLooper());
//初始化专题文本
left_news = view.findViewById(R.id.left_layout);
right_news = view.findViewById(R.id.right_layout);
for (int i = 0; i < arr_redain_textid.length; i++) {
arr_redian_info[i] = view.findViewById(arr_redain_textid[i]);
arr_redian_img[i] = view.findViewById(arr_redian_imgid[i]);
}
//初始化导航栏文本
for (int i = 0; i < titlelist.length; i++) {
titlelist[i] = view.findViewById(title_id[i]);
}
lunbotu();//轮播图
newslist();//标题下的所有新闻
return view;
}
//轮播图
private void lunbotu() {
Request request = new Request.Builder()
.url(lunbotuurl)
.build();
okHttpClient = new OkHttpClient.Builder().build();
Call call = okHttpClient.newCall(request);
call.enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
}
@Override
public void onResponse(Call call, Response response) throws IOException {
String data = response.body().string();
handler.post(new Runnable() {
@Override
public void run() {
LunbotuData lunbotudata = new Gson().fromJson(data, LunbotuData.class);
lunbotulist.clear();
for (int i = 0; i < lunbotudata.getRows().size(); i++) {
lunbotulist.add(contexturl + lunbotudata.getRows().get(i).getAdvImg());
}
banner.setImageLoader(new ImageLoader() {
@Override
public void displayImage(Context context, Object path, ImageView imageView) {
Glide.with(context)
.load(path)
.into(imageView);
}
})
.setDelayTime(2000)
.setImages(lunbotulist)
.start();
}
});
}
});
}
//热点新闻
private void redianxinwen() {
//将两个热点新闻放入集合中
ArrayList redian_img = new ArrayList<>();
ArrayList redian_title = new ArrayList<>();
ArrayList redian_info = new ArrayList<>();
for (int i = 0; i < xinwenData.getRows().size(); i++) {
if (xinwenData.getRows().get(i).getHot().equals("Y")) {
redian_title.add(xinwenData.getRows().get(i).getTitle());
redian_info.add(xinwenData.getRows().get(i).getContent());
redian_img.add(contexturl + xinwenData.getRows().get(i).getCover());
}
}
Const.redian_img = redian_img;
Const.redian_info = redian_info;
Const.redian_title = redian_title;
//加载主页面专题新闻
for (int i = 0; i < redian_img.size(); i++) {
Glide.with(getActivity())
.load(redian_img.get(i))
.into(arr_redian_img[i]);
arr_redian_info[i].setText(Html.fromHtml(redian_info.get(i)));
}
//左侧专题新闻监听
left_news.setonClickListener(new View.onClickListener() {
@Override
public void onClick(View view) {
startActivity(new Intent(getActivity(), Redian_left.class));
}
});
//右侧专题新闻监听
right_news.setonClickListener(new View.onClickListener() {
@Override
public void onClick(View view) {
startActivity(new Intent(getActivity(), Redian_right.class));
}
});
}
//新闻标题
private void newstitle() {
Request request = new Request.Builder()
.url(newstitleurl)
.build();
Call call = okHttpClient.newCall(request);
call.enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
}
@Override
public void onResponse(Call call, Response response) throws IOException {
final String data = response.body().string();
handler.post(new Runnable() {
@Override
public void run() {
NewsTitleData newsTitleData = new Gson().fromJson(data, NewsTitleData.class);
for (int i = 0; i < newsTitleData.getData().size(); i++) {
titlelist[i].setText(newsTitleData.getData().get(i).getName());
if (i == 0) {
tabdata.clear();
for (int j = 0; j < alldata.size(); j++) {
if (alldata.get(j).getType() != null) {
if (alldata.get(j).getType().equals(String.valueOf(newsTitleData.getData().get(0).getId()))) {
tabdata.add(alldata.get(j));
}
}
}
PutListview(tabdata);
}
final int finalI = i;
titlelist[i].setonClickListener(new View.onClickListener() {
@Override
public void onClick(View view) {
tabdata.clear();
for (int j = 0; j < alldata.size() - 1; j++) {
if (alldata.get(j).getType() != null) {
if (alldata.get(j).getType().equals(String.valueOf(newsTitleData.getData().get(finalI).getId()))) {
tabdata.add(alldata.get(j));
}
}
}
PutListview(tabdata);
for (int a = 0; a < titlelist.length; a++) {
if (finalI == a) {
titlelist[a].setTextColor(Color.BLUE);
} else {
titlelist[a].setTextColor(Color.GRAY);
}
}
}
});
}
}
});
}
});
}
//获取新闻导航列表数据
private void newslist() {
Request request = new Request.Builder()
.url(newsurl)
.build();
Call call = okHttpClient.newCall(request);
call.enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
}
@Override
public void onResponse(Call call, Response response) throws IOException {
final String newsdata = response.body().string();
handler.post(new Runnable() {
@Override
public void run() {
if (response != null && response.isSuccessful()) {
xinwenData = new Gson().fromJson(newsdata, XinwenData.class);
//将所有数据添加到alltada中
for (int i = 0; i < xinwenData.getRows().size(); i++) {
alldata.add(xinwenData.getRows().get(i));
}
Log.i("alldata数据：", String.valueOf(alldata));
//第一次进入加载新闻
newstitle();//新闻六个标题
redianxinwen();
}
}
});
}
});
}
//处理各个列表项
private void PutListview(ArrayList tabdata) {
listView.setAdapter(new Myadapter(tabdata));
listView.setonItemClickListener(new AdapterView.onItemClickListener() {
@Override
public void onItemClick(AdapterView adapterView, View view, int i, long l) {
Const.xinwenDataBean = tabdata.get(i);
Intent intent = new Intent(getActivity(), News_List.class);
startActivity(intent);
}
});
ListHeight(tabdata);
}
//新闻列表适配器
public class Myadapter extends baseAdapter {
ArrayList list;
public Myadapter(ArrayList list) {
this.list = list;
}
@Override
public int getCount() {
return list.size();
}
@Override
public Object getItem(int i) {
return list.get(i);
}
@Override
public long getItemId(int i) {
return i;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
View view2 = View.inflate(getActivity(), R.layout.news_list, null);
ImageView iv = view2.findViewById(R.id.iv);
TextView title = view2.findViewById(R.id.newstitle);
TextView neirong = view2.findViewById(R.id.neirong);
TextView updataTime = view2.findViewById(R.id.updataTime);
TextView commentNum = view2.findViewById(R.id.commentNum);
Glide.with(getActivity())
.load(contexturl + tabdata.get(i).getCover())
.into(iv);
title.setText(Html.fromHtml(tabdata.get(i).getTitle()));
neirong.setText(Html.fromHtml(tabdata.get(i).getContent()));
updataTime.setText(tabdata.get(i).getUpdateTime());
commentNum.setText(String.valueOf(tabdata.get(i).getCommentNum()));
return view2;
}
}
//处理列表项大小
private void ListHeight(ArrayList tabdata) {
Myadapter myadapter = new Myadapter(tabdata);
if (myadapter == null) {
return;
}
int listHeight = 0;
for (int i = 0; i < myadapter.getCount(); i++) {
View listItem = myadapter.getView(i, null, listView);
listItem.measure(0, 0);
listHeight += listItem.getMeasuredHeight();
}
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(list_linear.getLayoutParams());
params.height = listHeight + (listView.getDividerHeight() * (myadapter.getCount() - 1)) + 10;
listView.setLayoutParams(params);
}
}
以上为Java代码
布局界面如下所示
