运用x5cloud云平台来做网络彩讯-好友列表（六）

使用x5cloud云平台来做网络彩讯-------------好友列表（六）

很多时候，避免不了数据的显示，而手机端最好的显示还是需要列表控件

list_items.xml

<?xml version="1.0" encoding="utf-8"?><RelativeLayout        android:id="@+id/RelativeLayout01"        android:layout_width="320px"        xmlns:android="http://schemas.android.com/apk/res/android"        android:layout_height="wrap_content"       android:paddingBottom="4dip"        android:paddingLeft="12dip"      android:paddingRight="12dip">  <ImageView        android:paddingTop="12dip"      android:layout_alignParentRight="true"      android:layout_width="48px"        android:layout_height="48px"        android:id="@+id/ItemImage"      />    <TextView        android:text="TextView01"        android:layout_height="wrap_content"        android:textSize="20dip"        android:layout_width="fill_parent"        android:id="@+id/ItemTitle"      />  <TextView        android:text="TextView02"        android:layout_height="wrap_content"      android:textSize="10dip"      android:layout_width="fill_parent"        android:layout_below="@+id/ItemTitle"        android:id="@+id/ItemText"      />  </RelativeLayout>  

?gname.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout  xmlns:android="http://schemas.android.com/apk/res/android"  android:orientation="vertical"  android:layout_width="match_parent"  android:layout_height="match_parent">    <ListView     android:id="@+id/listView1"     android:layout_height="wrap_content"     android:layout_width="wrap_content"/>    </LinearLayout>

public void onCreate(Bundle savedInstanceState) {           super.onCreate(savedInstanceState);           setContentView(R.layout.gname);           ListView list = (ListView)findViewById(R.id.listView1);         list=listFriends(list);                                         }                    public ListView listFriends(ListView list){    ArrayList<HashMap<String, Object>> listItem = new ArrayList<HashMap<String, Object>>();         String sql="select  friends.FriendId,users.name,friends.Describe  from users inner join  friends on users.Id=friends.FriendId";        DataSourse ds=new DataSourse(sql,"8888888888888888",1,"Android_CX","service.x5cloud.com");        X5DBResult rs=ds.getData();        int i=0;        while(rs.hasNext()){         HashMap<String, Object> map = new HashMap<String, Object>();               map.put("ItemImage", R.drawable.icon);//图像资源的ID               map.put("ItemTitle", rs.getObject(2).toString());               map.put("ItemText", "\t"+rs.getObject(1).toString());               listItem.add(map);               i++;}        //生成适配器的Item和动态数组对应的元素           SimpleAdapter listItemAdapter = new SimpleAdapter(this,listItem,//数据源                R.layout.list_items,//ListItem的XML实现               //动态数组与ImageItem对应的子项                       new String[] {"ItemImage","ItemTitle", "ItemText"},                //ImageItem的XML文件里面的一个ImageView,两个TextView ID               new int[] {R.id.ItemImage,R.id.ItemTitle,R.id.ItemText}           );                     //添加并且显示           list.setAdapter(listItemAdapter);          return list;     }

??上面的数据源采用了x5cloud云平台提供的API?:? X5DBResult

?

public class DataSourse {private String sql;private String userid;private int dbtype;private String dbname;private String serverip;X5DBResult rs = null;DataSourse(String sql,String userid,int dbtype,String dbname,String serverip){this.sql=sql;this.userid=userid;this.dbtype=dbtype;this.dbname=dbname;this.serverip=serverip;}public X5DBResult getData(){X5Persist x5=new X5Persist(userid,dbtype,dbname,serverip);try {rs=x5.select(sql);return rs;} catch (X5Exception e) {e.printStackTrace();}return null;}}

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