新闻客户端

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。。。。。