輪播圖+XListView多條目展示

MainActivity

package com.example.demo.ui.activity;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

import com.example.demo.R;
import com.example.demo.model.BannerResponse;
import com.example.demo.model.NewsResponse;
import com.example.demo.ui.adapter.ContentsAdapter;
import com.example.demo.utils.NetUtils;

import me.maxwin.view.XListView;

public class MainActivity extends AppCompatActivity {


    private XListView contents;
    private ContentsAdapter mAdapter;

    private int mPage;
    private final int LOAD_COUNT = 10;

    @Override

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mPage = 1;

        contents = findViewById(R.id.contents);
        mAdapter = new ContentsAdapter(this);
        contents.setAdapter(mAdapter);
        contents.setPullRefreshEnable(true);
        contents.setPullLoadEnable(true);

        contents.setXListViewListener(new XListView.IXListViewListener() {
            @Override
            public void onRefresh() {
                mPage = 1;
                loadData();
            }

            @Override
            public void onLoadMore() {
                mPage++;
                loadData();
            }
        });

        loadData();
    }

    private void loadData() {
        if(mPage == 1) {
            loadBannerData();

            loadNesData();
        } else {
            loadNesData();
        }
    }

    private void loadBannerData() {
        NetUtils.getInstance().getRequest(bannerUrl, BannerResponse.class, new NetUtils.Callback<BannerResponse>() {
            @Override
            public void onSuccess(BannerResponse o) {
                mAdapter.setBanner(o.getData());
            }
        });
    }

    private void loadNesData() {
        NetUtils.getInstance().getRequest(String.format(newsUrl, LOAD_COUNT, mPage), NewsResponse.class, new NetUtils.Callback<NewsResponse>() {
            @Override
            public void onSuccess(NewsResponse o) {
                if(mPage == 1) {
                    mAdapter.setDatas(o.getResult());
                } else {
                    mAdapter.addDatas(o.getResult());
                }

                //停止重新整理加載
                contents.stopRefresh();
                contents.stopLoadMore();
                if(o.getResult().size() < LOAD_COUNT) {
                    contents.setPullLoadEnable(false);
                }
            }
        });
    }

    //banner url
    private String bannerUrl = "http://www.zhaoapi.cn/quarter/getAd";
    //news url
    private String newsUrl = "http://172.17.8.100/movieApi/movie/v1/findHotMovieList?count=%d&page=%d";
}

           

Adapter清單擴充卡

package com.example.demo.ui.adapter;

import android.content.Context;
import android.os.Message;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import com.example.demo.R;
import com.example.demo.model.BannerResponse;
import com.example.demo.model.NewsResponse;
import com.nostra13.universalimageloader.core.ImageLoader;

import java.util.ArrayList;
import java.util.List;
import java.util.logging.Handler;

public class ContentsAdapter extends BaseAdapter {

    //banner資料
    private List<BannerResponse.DataBean> mBanner;
    private List<NewsResponse.ResultBean> mDatas;
    private Context mContext;

    public ContentsAdapter(Context context) {
        this.mContext = context;
        mBanner = new ArrayList<>();
        mDatas = new ArrayList<>();
    }

    //更新banner
    public void setBanner(List<BannerResponse.DataBean> banner) {
        mBanner.clear();
        if (banner != null) {
            mBanner.addAll(banner);
        }
        notifyDataSetChanged();
    }

    //更新新聞資料
    public void setDatas(List<NewsResponse.ResultBean> datas) {
        mDatas.clear();
        if(datas != null) {
            mDatas.addAll(datas);
        }
        notifyDataSetChanged();
    }

    //追加新聞資料
    public void addDatas(List<NewsResponse.ResultBean> datas) {
        if(datas != null) {
            mDatas.addAll(datas);
        }
        notifyDataSetChanged();
    }

    @Override
    public int getCount() {
        //return mDatas.size() + 1;
        return hasBanner() ? mDatas.size() + 1 : mDatas.size();
    }

    //是否有banner
    private boolean hasBanner() {
        return mBanner.size() > 0;
    }

    @Override
    public NewsResponse.ResultBean getItem(int position) {
        return mDatas.get(hasBanner() ? position - 1 : position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    private final int ITEM_COUNT = 2;
    private final int BANNER_TYPE = 0;
    private final int NEWS_TYPE = 1;

    @Override
    public int getViewTypeCount() {
        //banner + news
        return ITEM_COUNT;
    }

    @Override
    public int getItemViewType(int position) {
        //return super.getItemViewType(position);
        return position == 0 && hasBanner() ? BANNER_TYPE : NEWS_TYPE;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if (getItemViewType(position) == BANNER_TYPE) {
            BannerViewHolder viewHolder;
            if (convertView == null) {
                convertView = LayoutInflater.from(mContext).inflate(R.layout.item_banner, parent, false);
                viewHolder = new BannerViewHolder(convertView);
            } else {
                viewHolder = (BannerViewHolder) convertView.getTag();
            }
            viewHolder.bindData(mContext, mBanner);
        } else {
            NewsViewHolder viewHolder;
            if (convertView == null) {
                convertView = LayoutInflater.from(mContext).inflate(R.layout.item_news, parent, false);
                viewHolder = new NewsViewHolder(convertView);
            } else {
                viewHolder = (NewsViewHolder) convertView.getTag();
            }
            viewHolder.bindData(getItem(position));
        }

        return convertView;
    }

    class BannerViewHolder {
        ViewPager viewPager;

        private android.os.Handler mHandler = new android.os.Handler(){
            @Override
            public void handleMessage(Message msg) {
                viewPager.setCurrentItem(viewPager.getCurrentItem() + 1);
                mHandler.sendEmptyMessageDelayed(0, 2000);
            }
        };

        public BannerViewHolder(View itemView) {
            viewPager = itemView.findViewById(R.id.banner);
            itemView.setTag(this);
        }


        public void bindData(Context context, List<BannerResponse.DataBean> datas) {
            //先取消掉切換任務
            mHandler.removeCallbacksAndMessages(null);
            viewPager.setAdapter(new BannerPagerAdapter(datas, context));
            //2147483648     10000000
            //讓ViewPager位于中間
            //左右都僞無限輪播
            //             Banner  LooperViewPager
            //     4 + 2
            //   0   1 2 3 4  0
            viewPager.setCurrentItem(viewPager.getAdapter().getCount() / 2);

            //開始輪播
            mHandler.sendEmptyMessageDelayed(0, 2000);
        }
    }

    class NewsViewHolder {
        ImageView icon;
        TextView title;
        TextView date;

        public NewsViewHolder(View itemView) {
            icon = itemView.findViewById(R.id.icon);
            title = itemView.findViewById(R.id.title);
            date = itemView.findViewById(R.id.date);
            itemView.setTag(this);
        }

        public void bindData(NewsResponse.ResultBean data) {
            title.setText(data.getName());
            date.setText(data.getSummary());
            ImageLoader.getInstance().displayImage(data.getImageUrl(), icon);
        }
    }
}

           

Adapter輪播擴充卡

package com.example.demo.ui.adapter;

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

import com.example.demo.model.BannerResponse;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.assist.FailReason;
import com.nostra13.universalimageloader.core.listener.ImageLoadingListener;

import java.util.List;

public class BannerPagerAdapter extends PagerAdapter {

    private List<BannerResponse.DataBean> mDatas;
    private Context context;

    public BannerPagerAdapter(List<BannerResponse.DataBean> mDatas, Context context) {
        this.mDatas = mDatas;
        this.context = context;
    }

    @Override
    public int getCount() {
        //TODO 無限
        //return mDatas.size();
        //return Integer.MAX_VALUE;
        return 5000;
    }

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

    @NonNull
    @Override
    public Object instantiateItem(@NonNull ViewGroup container, int position) {
        ImageView imageView = new ImageView(context);

        imageView.setScaleType(ImageView.ScaleType.FIT_CENTER);
        container.addView(imageView);

        ImageLoader.getInstance().displayImage(mDatas.get(position % mDatas.size()).getIconNoHttps(), imageView, null, new ImageLoadingListener() {
            @Override
            public void onLoadingStarted(String imageUri, View view) {
                Log.i("TEST", "start: " + imageUri);
            }

            @Override
            public void onLoadingFailed(String imageUri, View view, FailReason failReason) {
                Log.i("TEST", "failed: " + imageUri);
            }

            @Override
            public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
                Log.i("TEST", "complete: " + imageUri);
            }

            @Override
            public void onLoadingCancelled(String imageUri, View view) {
                Log.i("TEST", "cancelled: " + imageUri);
            }
        });

        return imageView;
    }

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

           

NetUtils工具類

package com.example.demo.utils;

import android.content.Context;
import android.os.AsyncTask;

import com.google.gson.Gson;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

public class NetUtils {

    private static NetUtils instance;
    private Gson gson;

    private NetUtils() {
        gson = new Gson();
    }

    public static NetUtils getInstance() {
        if(instance == null) {
            instance = new NetUtils();
        }
        return instance;
    }

    public interface Callback<T> {
        void onSuccess(T t);
    }

    public void getRequest(final String urlStr, final Class clazz, final Callback callback) {
        new AsyncTask<String, Void, Object>(){
            @Override
            protected Object doInBackground(String... strings) {
                return getRequest(urlStr, clazz);
            }

            @Override
            protected void onPostExecute(Object o) {
                callback.onSuccess(o);
            }
        }.execute(urlStr);
    }

    //是否有網絡
    public static boolean hasNetwork(Context context) {
        return true;
    }

    public <T> T getRequest(String urlStr, Class clazz) {
        return (T) gson.fromJson(getRequest(urlStr), clazz);
    }

    public String getRequest(String urlStr) {
        String result = "";

        try {
            URL url = new URL(urlStr);
            HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
            urlConnection.setRequestMethod("GET");
            //
            urlConnection.setConnectTimeout(5000);
            urlConnection.setReadTimeout(5000);
            int responseCode = urlConnection.getResponseCode();
            if(responseCode == 200) {
                result = stream2String(urlConnection.getInputStream());
            }
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        return result;
    }

    private String stream2String(InputStream is) throws IOException {
        StringBuilder sb = new StringBuilder();

        BufferedReader br = new BufferedReader(new InputStreamReader(is));
        for (String tmp = br.readLine(); tmp != null ; tmp = br.readLine()) {
            sb.append(tmp);
        }

        return sb.toString();
    }
}

           

banner_item.xml輪播

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <android.support.v4.view.ViewPager
        android:id="@+id/banner"
        android:layout_width="0dp"
        android:layout_height="200dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</android.support.constraint.ConstraintLayout>
           

news_item.xml清單

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <ImageView
        android:id="@+id/icon"
        android:layout_width="140dp"
        android:layout_height="100dp"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"/>

    <TextView
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:id="@+id/title"
        android:text="text"
        app:layout_constraintTop_toTopOf="@id/icon"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toLeftOf="@id/icon"
        />

    <TextView
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:id="@+id/date"
        android:text="text"
        android:maxLines="3"
        app:layout_constraintBottom_toBottomOf="@id/icon"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toLeftOf="@id/icon"
        />
</android.support.constraint.ConstraintLayout>
           

bannerBean輪播

package com.example.demo.model;

import java.util.List;

public class BannerResponse {
    private String msg;
    private String code;
    private List<DataBean> data;

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }

    public List<DataBean> getData() {
        return data;
    }

    public void setData(List<DataBean> data) {
        this.data = data;
    }

    public static class DataBean {
        private int aid;
        private String createtime;
        private String icon;
        private Object productId;
        private String title;
        private int type;
        private String url;

        public int getAid() {
            return aid;
        }

        public void setAid(int aid) {
            this.aid = aid;
        }

        public String getCreatetime() {
            return createtime;
        }

        public void setCreatetime(String createtime) {
            this.createtime = createtime;
        }

        public String getIcon() {
            return icon;
        }

        public String getIconNoHttps() {
            return icon.replace("https", "http");
        }

        public void setIcon(String icon) {
            this.icon = icon;
        }

        public Object getProductId() {
            return productId;
        }

        public void setProductId(Object productId) {
            this.productId = productId;
        }

        public String getTitle() {
            return title;
        }

        public void setTitle(String title) {
            this.title = title;
        }

        public int getType() {
            return type;
        }

        public void setType(int type) {
            this.type = type;
        }

        public String getUrl() {
            return url;
        }

        public void setUrl(String url) {
            this.url = url;
        }
    }
}