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最新推荐文章于 2024-10-22 10:58:33 发布

原创最新推荐文章于 2024-10-22 10:58:33 发布 · 179 阅读

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MainActivity：

package cn.edu.bzu.news;

import android.graphics.Color;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import com.loopj.android.http.AsyncHttpClient;
import com.loopj.android.http.AsyncHttpResponseHandler;
import com.loopj.android.image.SmartImageView;

import org.apache.http.Header;

import java.io.ByteArrayInputStream;
import java.util.List;

public class MainActivity extends AppCompatActivity {
    private ListViewlv_news;
    private LinearLayout loading;
    private List<NewsInfo> newsInfos;

    private class NewsAdapter extends BaseAdapter{

        @Override
        public int getCount() {
            return newsInfos.size();
        }

        @Override
        public ObjectgetItem(int position) {
            return null;
        }

        @Override
        public long getItemId(int position) {
            return 0;
        }

        @Override
        public ViewgetView(int position, ViewconvertView, ViewGroup parent) {
            View view=View.inflate(MainActivity.this,R.layout.news_item,null);
            SmartImageView siv= (SmartImageView)view.findViewById(R.id.siv_icon);
            TextView tv_title= (TextView) view.findViewById(R.id.tv_title);
            TextView tv_description= (TextView)view.findViewById(R.id.tv_description);
            TextView tv_type= (TextView) view.findViewById(R.id.tv_type);
            NewsInfo newsInfo=newsInfos.get(position);
            siv.setImageUrl(newsInfo.getIconPath(),R.drawable.ab,R.drawable.ic_launcher);
            tv_title.setText(newsInfo.getTitle());
            tv_description.setText(newsInfo.getdescroption());
            int type =newsInfo.gettype();
            switch (type){
                case 1:
                    tv_type.setText("评论："+newsInfo.getComment());
                    break;
                case 2:
                   tv_type.setTextColor(Color.RED);
                    tv_type.setText("专题：");
                    break;
                case 3:
                   tv_type.setTextColor(Color.BLUE);
                    tv_type.setText("LIVE");
                    break;

            }

            return view;
        }
    }

    @Override
    protected void onCreate(BundlesavedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        lv_news=(ListView) findViewById(R.id.lv_news);
        loading=(LinearLayout) findViewById(R.id.loading);
        fillData2();
    }

    private void fillData2() {
        AsyncHttpClient asynHttpClient = new AsyncHttpClient();
        asynHttpClient.get(getString(R.string.serverurl),new AsyncHttpResponseHandler() {
            @Override
            public void onSuccess(String content) {
                super.onSuccess(content);
                byte[] btyes = content.getBytes();
                ByteArrayInputStream bais = new ByteArrayInputStream(btyes);
                newsInfos =NewsInfoService.getNewsInfos(bais);
                if (newsInfos == null) {
                    Toast.makeText(MainActivity.this, "解析失败", 0).show();
                } else{
                    loading.setVisibility(View.INVISIBLE);
                    lv_news.setAdapter(new NewsAdapter());
                }
            }

            @Override
            public void onFailure(Throwable error, String content) {
                super.onFailure(error, content);
                Toast.makeText(MainActivity.this, "请求失败", 0).show();

            }
        });
    }

}

NesInfo：

package cn.edu.bzu.news;
import android.widget.TextView;
public class NewsInfo {
    private String iconPath;
    private String title;
    private String description;
    private int type;
    private long comment;
    public String getIconPath() {
        return iconPath;
    }
    public void setIconPath(String iconPath) {
        this.iconPath = iconPath;
    }

    public String getTitle() {
        return title;
    }

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

    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    public int getType() {
        return type;
    }

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

    public long getComment() {
        return comment;
    }

    public void setComment(long comment) {
        this.comment = comment;
    }

    public int  getdescroption() {
        this.description = description;
        return 0;
    }

    public int gettype() {
        this.type=type;
        return 0;
    }
}

NESiNFOService：
package cn.edu.bzu.news;

import android.util.Xml;

import org.xmlpull.v1.XmlPullParser;

import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
public class NewsInfoService {
    public static List<NewsInfo> getNewsInfos(InputStream is) {
        XmlPullParser parser = Xml.newPullParser();
        try {
            parser.setInput(is,"utf-8");
            int type =parser.getEventType();
            List<NewsInfo> newsInfos=null;
            NewsInfo newsInfo=null;
            while (type!=XmlPullParser.END_DOCUMENT){
                switch (type){
                    case XmlPullParser.START_TAG:
                        if("news".equals(parser.getName())){
                            newsInfo= new NewsInfo();
                        }else if("newsInfo".equals(parser.getName())){
                            newsInfo=new NewsInfo();
                        }else if("icon".equals(parser.getName())){
                            String icon=parser.nextText();
                            newsInfo.setIconPath(icon);
                        }else  if("title".equals(parser.getName())){
                            String title=parser.nextText();
                            newsInfo.setTitle(title);
                        }else if("content".equals(parser.getName())){
                            String decription=parser.nextText();
                            newsInfo.setDescription(decription);

                        }else if("type".equals(parser.getName())){
                            String newstype=parser.nextText();
                            newsInfo.setType(Integer.parseInt(newstype));
                        }else if("comment".equals(parser.getName())){
                            String comment = parser.nextText();
                            newsInfo.setComment(Long.parseLong(comment));
                        }
                        break;
                    case XmlPullParser.END_TAG:
                        if ("newsInfo".equals(parser.getName())){
                            newsInfos.add(newsInfo);
                            newsInfo=null;
                        }
                        break;
                }
                type=parser.next();
            }
            return newsInfos;

        } catch (Exception e) {
            e.printStackTrace();
        }


        return null;
    }
}
activity_main:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity"
    android:orientation="vertical">

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        <LinearLayout
            android:id="@+id/loading"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:gravity="center"
            android:orientation="vertical"
            android:visibility="invisible">
            <ProgressBar
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="正在加载信息..." />
        </LinearLayout>
        <ListView
            android:id="@+id/lv_news"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    </FrameLayout>
</LinearLayout>

 
News:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="65dp">
    <com.loopj.android.image.SmartImageView
        android:id="@+id/siv_icon"
        android:layout_width="80dp"
        android:layout_height="60dp"
        android:scaleType="centerCrop"
        android:src="@mipmap/ic_launcher"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"></com.loopj.android.image.SmartImageView>
    <TextView
        android:id="@+id/tv_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="5dp"
        android:layout_marginTop="10dp"
        android:layout_toRightOf="@id/siv_icon"
        android:ellipsize="end"
        android:maxLength="20"
        android:singleLine="true"
        android:text="我是标题"
        android:textColor="#000000"
        android:textSize="18sp" />

    <TextView
        android:id="@+id/tv_description"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/tv_title"
        android:layout_marginLeft="5dp"
        android:layout_marginTop="5dp"
        android:layout_toRightOf="@id/siv_icon"
        android:ellipsize="end"
        android:maxLength="16"
        android:maxLines="1"
        android:text="我是描述"
        android:textColor="#99000000"
        android:textSize="14sp" />

    <TextView
        android:id="@+id/tv_type"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentRight="true"
        android:layout_marginBottom="5dp"
        android:layout_marginRight="10dp"
        android:text="评论"
        android:textColor="#99000000"
        android:textSize="12sp" />

</RelativeLayout>

最后没有运行出来，，也不知道哪里错了，，，不开森。。。。。