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横向滑动菜单+上拉刷新+图片轮播+listView（TextView，GridView）+下拉加载

分类: 文章 • 2024-09-07 23:28:58
横向滑动菜单+上拉刷新+图片轮播+listView（TextView，GridView）+下拉加载


implementation 'com.android.support:design:26.+'
compile 'com.github.userswlwork:pull-to-refresh:1.0.0'
 
package com.example.slx.slx1_13;

import android.os.AsyncTask;

import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

/**
 * Created by lenovo on 2018/1/11.
 */

public class MyTask extends AsyncTask<String,Void,String>{
    private ICallBacks iCallBacks;
    private InputStream inputStream;

    public MyTask(ICallBacks iCallBacks) {
        this.iCallBacks = iCallBacks;
    }

    @Override
    protected String doInBackground(String... strings) {
        try {
            URL url = new URL(strings[0]);
            HttpURLConnection urlConnection =(HttpURLConnection) url.openConnection();
            urlConnection.setRequestMethod("GET");
            urlConnection.setConnectTimeout(2000);
            urlConnection.setReadTimeout(2000);
            if(urlConnection.getResponseCode()==200){
                inputStream = urlConnection.getInputStream();
            }else if(urlConnection.getResponseCode() == 301 || urlConnection.getResponseCode() == 302) {
                String location = urlConnection.getHeaderField("location");
                URL newurl = new URL(location);
                HttpURLConnection newurlConnection =(HttpURLConnection) newurl.openConnection();
                newurlConnection.setRequestMethod("GET");
                newurlConnection.setConnectTimeout(2000);
                newurlConnection.setReadTimeout(2000);
                if(newurlConnection.getResponseCode() == 200){
                    inputStream = newurlConnection.getInputStream();
                }
            }
            ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
            byte[] bytes = new byte[1024];
            int len;
            while ((len=inputStream.read(bytes))!=-1){
                byteArrayOutputStream.write(bytes,0,len);
            }
            String s = byteArrayOutputStream.toString();
            return s;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    @Override
    protected void onPostExecute(String s) {
       iCallBacks.getJson(s);
    }
    public interface ICallBacks{
        void getJson(String s);
    }
}



package com.example.slx.slx1_13;

import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.support.v7.app.AlertDialog;

/**
 * Created by lenovo on 2018/1/12.
 */

public class NetUtils {
    //判断有无网络的方法
    public static boolean isConn(Context context){
        //1.得到系统服务
        ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);

        //2.得到网络信息类对象-需要添加权限

        //清单文件配置：
                NetworkInfo info = manager.getActiveNetworkInfo();
        //3.进行判断
        if(info!=null && info.isAvailable()){//已经连接网络
            return true;
        }else{
            return false;
        }
    }


    //如果没有网络的情况下，弹出一个对话框，打开设置页面
    public static void openNetDialog(final Context context){
        AlertDialog.Builder builder=new AlertDialog.Builder(context);
        builder.setTitle("提示");
        builder.setMessage("没有网络，是否进行设置？");
        builder.setPositiveButton("设置", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                //跳转到系统设置页面-隐士跳转
                Intent intent = null;
                // 先判断当前系统版本
                if(android.os.Build.VERSION.SDK_INT > 10){  // 3.0以上
                    intent = new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS);
                }else{
                    intent = new Intent();
                    intent.setClassName("com.android.settings", "com.android.settings.WirelessSettings");
                }
                context.startActivity(intent);
            }
        });
        builder.setNegativeButton("取消",null);
        AlertDialog dialog = builder.create();
        dialog.show();
    }
}



package com.example.slx.slx1_13;

import android.app.Application;

import com.nostra13.universalimageloader.cache.disc.impl.UnlimitedDiscCache;
import com.nostra13.universalimageloader.cache.disc.naming.Md5FileNameGenerator;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;

import java.io.File;

/**
 * Created by lenovo on 2018/1/11.
 */

public class MyApplication extends Application{
    @Override
    public void onCreate() {
        super.onCreate();
        File cachefile=getExternalCacheDir();
        ImageLoaderConfiguration config=new ImageLoaderConfiguration.Builder(this)
                .memoryCacheExtraOptions(480, 800)//缓存图片最大的长和宽
                .threadPoolSize(2)//线程池的数量
                .threadPriority(4)
                .memoryCacheSize(2*1024*1024)//设置内存缓存区大小
                .diskCacheSize(20*1024*1024)//设置sd卡缓存区大小
                .diskCache(new UnlimitedDiscCache(cachefile))//自定义缓存目录
                .writeDebugLogs()//打印日志内容
                .diskCacheFileNameGenerator(new Md5FileNameGenerator())//给缓存的文件名进行md5加密处理
                .build();
        ImageLoader.getInstance().init(config);

    }
}



package com.example.slx.slx1_13;

import android.os.Handler;
import android.os.Message;
import android.support.design.widget.TabLayout;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ListView;
import android.widget.ScrollView;

import com.google.gson.Gson;
import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshScrollView;

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

public class MainActivity extends AppCompatActivity {
    private List<Goods.DataBean> listGoods=new ArrayList<>();
    private int pageIndex=1;
    private int oper=1;
    private String url="http://120.27.23.105/product/getProductCatagory?cid=1";
    private TabLayout myTab;
    private ViewPager viewPager;
    private ListView listView;
    private PullToRefreshScrollView ps;
    private MyAdapter myAdapter;
    private MyPageAdapter myPageAdapter;
    private List<String> listText;
    private ArrayList<String> listImage = new ArrayList<>();
    private int i=1;
    private Handler handler=new Handler(){
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            viewPager.setCurrentItem(msg.what);
        }
    };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        if (NetUtils.isConn(this)){


        myTab = findViewById(R.id.myTab);
        myTab.addTab(myTab.newTab().setText("推荐0"));
        myTab.addTab(myTab.newTab().setText("推荐0"));

        myTab.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
            @Override
            public void onTabSelected(TabLayout.Tab tab) {

            }

            @Override
            public void onTabUnselected(TabLayout.Tab tab) {

            }

            @Override
            public void onTabReselected(TabLayout.Tab tab) {

            }
        });

        viewPager=findViewById(R.id.viewPager);
        listView = findViewById(R.id.listView);

        ps = findViewById(R.id.ps);

        initData();//请求数据
        initPs();//下拉上拉
        }else {
            NetUtils.openNetDialog(this);
        }
    }

    private void initPs() {
        ps.setMode(PullToRefreshBase.Mode.BOTH);
        ps.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ScrollView>() {
            @Override
            public void onPullDownToRefresh(PullToRefreshBase<ScrollView> pullToRefreshBase) {
                oper=1;
                pageIndex=1;
                url="http://120.27.23.105/product/getProductCatagory?cid=1";
                initData();


            }

            @Override
            public void onPullUpToRefresh(PullToRefreshBase<ScrollView> pullToRefreshBase) {
                oper=1;
                pageIndex++;
                url="http://120.27.23.105/product/getProductCatagory?cid=1";
                initData();
            }
        });
    }

    private void initData() {
        MyTask myTask = new MyTask(new MyTask.ICallBacks() {




            @Override
            public void getJson(String s) {
                Gson gson = new Gson();
                Goods goods = gson.fromJson(s, Goods.class);
                //listGoods = goods.getData();
                listGoods.addAll(goods.getData());

                for (int j = 0; j < listGoods.size(); j++) {
                    List<Goods.DataBean.ListBean> list = listGoods.get(i).getList();
                    for (int k = 0; k <list.size() ; k++) {
                        String images = list.get(i).getIcon();
                        listImage.add(images);
                    }

                }
                if(myPageAdapter==null){

                    myPageAdapter = new MyPageAdapter(MainActivity.this,listImage);
                    viewPager.setAdapter(myPageAdapter);
                }else {
                    myPageAdapter.notifyDataSetChanged();
                }

                if(myAdapter==null){
                    myAdapter = new MyAdapter(MainActivity.this, listGoods);
                    listView.setAdapter(myAdapter);
                }else {
                    myAdapter.notifyDataSetChanged();
                }
                   ps.onRefreshComplete();
            }
        });
        myTask.execute("http://120.27.23.105/product/getProductCatagory?cid=1");
        new Thread(){
            @Override
            public void run() {
                super.run();
                while (true){
                    try {
                        sleep(2000);
                        i++;
                        handler.sendEmptyMessage(i);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }

                }
            }
        }.start();
        
    }

}

 
package com.example.slx.slx1_13;

import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.TextView;

import java.util.List;

/**
 * Created by lenovo on 2018/1/12.
 */

public class MyAdapter extends BaseAdapter {
    private Context context;
    private List<Goods.DataBean> list;


    public MyAdapter(Context context, List<Goods.DataBean> list) {
        this.context = context;
        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) {
        ViewHolder holder;
        if(view==null){
            view=View.inflate(context,R.layout.itemlayout,null);
            holder=new ViewHolder();
            holder.textView=view.findViewById(R.id.textView);
            holder.gridView=view.findViewById(R.id.gridView);
            view.setTag(holder);
        }else {
            holder=(ViewHolder)view.getTag();
        }
        holder.textView.setText(list.get(i).getName());
        List<Goods.DataBean.ListBean> gridlist = this.list.get(i).getList();
        MyGridViewAdapter myGridViewAdapter = new MyGridViewAdapter(context,gridlist);
        holder.gridView.setAdapter(myGridViewAdapter);
        return view;
    }
    public class ViewHolder{
        TextView textView;
        GridView gridView;
    }
}

 
package com.example.slx.slx1_13;

import android.content.Context;
import android.graphics.Bitmap;
import android.support.v4.view.PagerAdapter;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;

import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.assist.ImageScaleType;

import java.util.List;

/**
 * Created by lenovo on 2018/1/12.
 */

public class MyPageAdapter extends PagerAdapter{
    private Context context;
    private  List<String> list;
    private DisplayImageOptions options;
    public MyPageAdapter(Context context, List<String> list) {
        this.context = context;
        this.list = list;
        options = new DisplayImageOptions.Builder()
                .cacheInMemory(true)//使用内存缓存
                .cacheOnDisk(true)//使用磁盘缓存
                .showImageOnLoading(R.mipmap.ic_launcher)//设置正在下载的图片
                .showImageForEmptyUri(R.mipmap.ic_launcher)//url为空或请求的资源不存在时
                .showImageOnFail(R.mipmap.ic_launcher)//下载失败时显示的图片
                .bitmapConfig(Bitmap.Config.RGB_565)//设置图片色彩模式
                .imageScaleType(ImageScaleType.EXACTLY)//设置图片的缩放模式
                .build();
    }

    @Override
    public int getCount() {
        return Integer.MAX_VALUE;
    }

    @Override
    public boolean isViewFromObject(View view, Object object) {
        return view==object;
    }

    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        ImageView imageView = new ImageView(context);
        ImageLoader.getInstance().displayImage(list.get(position%list.size()),imageView,options);
        container.addView(imageView);
        return imageView;
    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
        container.removeView((View) object);
    }
}



package com.example.slx.slx1_13;

import android.app.Application;

import com.nostra13.universalimageloader.cache.disc.impl.UnlimitedDiscCache;
import com.nostra13.universalimageloader.cache.disc.naming.Md5FileNameGenerator;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;

import java.io.File;

/**
 * Created by lenovo on 2018/1/11.
 */

public class MyApplication extends Application{
    @Override
    public void onCreate() {
        super.onCreate();
        File cachefile=getExternalCacheDir();
        ImageLoaderConfiguration config=new ImageLoaderConfiguration.Builder(this)
                .memoryCacheExtraOptions(480, 800)//缓存图片最大的长和宽
                .threadPoolSize(2)//线程池的数量
                .threadPriority(4)
                .memoryCacheSize(2*1024*1024)//设置内存缓存区大小
                .diskCacheSize(20*1024*1024)//设置sd卡缓存区大小
                .diskCache(new UnlimitedDiscCache(cachefile))//自定义缓存目录
                .writeDebugLogs()//打印日志内容
                .diskCacheFileNameGenerator(new Md5FileNameGenerator())//给缓存的文件名进行md5加密处理
                .build();
        ImageLoader.getInstance().init(config);

    }
}



package com.example.slx.slx1_13;

import android.content.Context;
import android.util.AttributeSet;
import android.widget.ListView;

/**
 * Created by lenovo on 2018/1/12.
 */


public class MyList extends ListView{


    public MyList(Context context) {
        super(context);
    }

    public MyList(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public MyList(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        int newHeight= MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE>>2, MeasureSpec.AT_MOST);
        super.onMeasure(widthMeasureSpec, newHeight);
    }
}



package com.example.slx.slx1_13;

import android.content.Context;
import android.util.AttributeSet;
import android.widget.GridView;

/**
 * Created by lenovo on 2018/1/12.
 */

public class MyGrid extends GridView{
    public MyGrid(Context context) {
        super(context);
    }

    public MyGrid(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public MyGrid(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        int newHeight=MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE>>2,MeasureSpec.AT_MOST);
        super.onMeasure(widthMeasureSpec, newHeight);
    }
}



															

																					

								

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