Android 如何在从服务器获取数据时实现ListView

我已经编写了一个程序，用

文本视图
（s）从服务器获取数据，并在Android活动中显示，现在我想用
列表视图
将这些数据显示到列表中，但我不知道我需要如何在代码中实现
列表视图

我从每一行中提取两个字段，即：TotalAmount和ItemDetails

注意：我也为
ListView
编写了XML文件，即-listrow\u订单

请我不需要任何其他教程链接，根据我的代码简要介绍我，这将是最好的最好的理解

OrdersActivity.java:

 public class OrdersActivity extends Activity 
{ 
    public static final String LOG_TAG = "OrdersActivity";

    TextView txtDetail,txtAmount ;
    String MemberID,resultServer,strTotal,strDetails,strOrderID;

    @SuppressLint("NewApi")
    @Override

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_orders);

        // Permission StrictMode
        if (android.os.Build.VERSION.SDK_INT > 9) {
            StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
            StrictMode.setThreadPolicy(policy);
            }           

            txtAmount = (TextView)findViewById(R.id.txtTotalAmount);
            txtDetail = (TextView)findViewById(R.id.txtItemDetails);

            String url = "http://172.16.0.4/res/order_fetch.php";
            Intent intent= getIntent();
            MemberID = intent.getStringExtra("MemberID");
            List<NameValuePair> params = new ArrayList<NameValuePair>();
            params.add(new BasicNameValuePair("sMemberID", MemberID));
            resultServer  = getHttpPost(url,params);

            strTotal = "";
            strDetails = "";

            JSONObject c;
            try {
            c = new JSONObject(resultServer);
            strTotal = c.getString("TotalAmount");  
            Log.d("Total Amount::", " "+strTotal);
            strDetails = c.getString("ItemDetails");
            Log.d("Item Details::", " "+strDetails);

            if(!strDetails.equals(""))
            {                   
                txtAmount.setText(strTotal);
                txtDetail.setText(strDetails);              
            }
            else
            {               
                txtDetail.setText("-");
                txtDetail.setText("-");
            }
            } catch (JSONException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            }       

    }       

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#ffffff" >

<ListView 
    android:layout_width="match_parent" 
    android:id="@+id/list_orders" 
    android:layout_height="wrap_content" 
    android:layout_alignParentLeft="true" 
    android:layout_below="@+id/header" 
    android:cacheColorHint="#00000000" 
    android:divider="#b5b5b5" 
    android:dividerHeight="1dp" 
    android:layout_alignParentBottom="true" />

</RelativeLayout>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
 >

<TextView
    android:id="@+id/txtTotalAmount"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/textView1"
    android:layout_below="@+id/textView1"
    android:text="TextView" />

<TextView
    android:id="@+id/txtItemDetails"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/textView3"
    android:layout_below="@+id/textView3"
    android:text="Item Details Here" />

<TextView
    android:id="@+id/textView1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentLeft="true"
    android:layout_alignParentTop="true"
    android:text="Total Amount:"
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:textColor="#a60704" />

<TextView
    android:id="@+id/textView3"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/txtTotalAmount"
    android:layout_below="@+id/txtTotalAmount"
    android:text="Ordered Items:"
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:textColor="#a60704" />

</RelativeLayout>

公共类OrdersActivity扩展活动
{ 
公共静态最终字符串日志\u TAG=“OrdersActivity”；
TextView txtDetail，txtAmount；
字符串MemberID、resultServer、strTotal、strDetails、strOrderID；
@SuppressLint（“新API”）
@凌驾
创建时的公共void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.activity_orders）；
//权限限制模式
如果（android.os.Build.VERSION.SDK_INT>9）{
StrictMode.ThreadPolicy policy=新建StrictMode.ThreadPolicy.Builder（）.permitAll（）.build（）；
StrictMode.setThreadPolicy（策略）；
}           
txtAmount=（TextView）findViewById（R.id.txtTotalAmount）；
txtDetail=（TextView）findViewById（R.id.txtItemDetails）；
字符串url=”http://172.16.0.4/res/order_fetch.php";
Intent=getIntent（）；
MemberID=intent.getStringExtra（“MemberID”）；
List params=new ArrayList（）；
添加（新的BasicNameValuePair（“sMemberID”，MemberID））；
resultServer=getHttpPost（url，参数）；
strTotal=“”；
strDetails=“”；
JSONObject c；
试一试{
c=新的JSONObject（resultServer）；
strTotal=c.getString（“TotalAmount”）；
Log.d（“总金额：：”，“”+strTotal）；
strDetails=c.getString（“ItemDetails”）；
Log.d（“项目详细信息：：”，“”+strDetails）；
如果（！strDetails.equals（“”）
{                   
txtAmount.setText（strTotal）；
txtdeail.setText（strDetails）；
}
其他的
{               
txtDetail.setText（“-”）；
txtDetail.setText（“-”）；
}
}捕获（JSONException e）{
//TODO自动生成的捕捉块
e、 printStackTrace（）；
}       
}       

activity\u orders.xml:

 public class OrdersActivity extends Activity 
{ 
    public static final String LOG_TAG = "OrdersActivity";

    TextView txtDetail,txtAmount ;
    String MemberID,resultServer,strTotal,strDetails,strOrderID;

    @SuppressLint("NewApi")
    @Override

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_orders);

        // Permission StrictMode
        if (android.os.Build.VERSION.SDK_INT > 9) {
            StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
            StrictMode.setThreadPolicy(policy);
            }           

            txtAmount = (TextView)findViewById(R.id.txtTotalAmount);
            txtDetail = (TextView)findViewById(R.id.txtItemDetails);

            String url = "http://172.16.0.4/res/order_fetch.php";
            Intent intent= getIntent();
            MemberID = intent.getStringExtra("MemberID");
            List<NameValuePair> params = new ArrayList<NameValuePair>();
            params.add(new BasicNameValuePair("sMemberID", MemberID));
            resultServer  = getHttpPost(url,params);

            strTotal = "";
            strDetails = "";

            JSONObject c;
            try {
            c = new JSONObject(resultServer);
            strTotal = c.getString("TotalAmount");  
            Log.d("Total Amount::", " "+strTotal);
            strDetails = c.getString("ItemDetails");
            Log.d("Item Details::", " "+strDetails);

            if(!strDetails.equals(""))
            {                   
                txtAmount.setText(strTotal);
                txtDetail.setText(strDetails);              
            }
            else
            {               
                txtDetail.setText("-");
                txtDetail.setText("-");
            }
            } catch (JSONException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            }       

    }       

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#ffffff" >

<ListView 
    android:layout_width="match_parent" 
    android:id="@+id/list_orders" 
    android:layout_height="wrap_content" 
    android:layout_alignParentLeft="true" 
    android:layout_below="@+id/header" 
    android:cacheColorHint="#00000000" 
    android:divider="#b5b5b5" 
    android:dividerHeight="1dp" 
    android:layout_alignParentBottom="true" />

</RelativeLayout>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
 >

<TextView
    android:id="@+id/txtTotalAmount"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/textView1"
    android:layout_below="@+id/textView1"
    android:text="TextView" />

<TextView
    android:id="@+id/txtItemDetails"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/textView3"
    android:layout_below="@+id/textView3"
    android:text="Item Details Here" />

<TextView
    android:id="@+id/textView1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentLeft="true"
    android:layout_alignParentTop="true"
    android:text="Total Amount:"
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:textColor="#a60704" />

<TextView
    android:id="@+id/textView3"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/txtTotalAmount"
    android:layout_below="@+id/txtTotalAmount"
    android:text="Ordered Items:"
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:textColor="#a60704" />

</RelativeLayout>



listrow\u orders.xml:

 public class OrdersActivity extends Activity 
{ 
    public static final String LOG_TAG = "OrdersActivity";

    TextView txtDetail,txtAmount ;
    String MemberID,resultServer,strTotal,strDetails,strOrderID;

    @SuppressLint("NewApi")
    @Override

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_orders);

        // Permission StrictMode
        if (android.os.Build.VERSION.SDK_INT > 9) {
            StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
            StrictMode.setThreadPolicy(policy);
            }           

            txtAmount = (TextView)findViewById(R.id.txtTotalAmount);
            txtDetail = (TextView)findViewById(R.id.txtItemDetails);

            String url = "http://172.16.0.4/res/order_fetch.php";
            Intent intent= getIntent();
            MemberID = intent.getStringExtra("MemberID");
            List<NameValuePair> params = new ArrayList<NameValuePair>();
            params.add(new BasicNameValuePair("sMemberID", MemberID));
            resultServer  = getHttpPost(url,params);

            strTotal = "";
            strDetails = "";

            JSONObject c;
            try {
            c = new JSONObject(resultServer);
            strTotal = c.getString("TotalAmount");  
            Log.d("Total Amount::", " "+strTotal);
            strDetails = c.getString("ItemDetails");
            Log.d("Item Details::", " "+strDetails);

            if(!strDetails.equals(""))
            {                   
                txtAmount.setText(strTotal);
                txtDetail.setText(strDetails);              
            }
            else
            {               
                txtDetail.setText("-");
                txtDetail.setText("-");
            }
            } catch (JSONException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            }       

    }       

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#ffffff" >

<ListView 
    android:layout_width="match_parent" 
    android:id="@+id/list_orders" 
    android:layout_height="wrap_content" 
    android:layout_alignParentLeft="true" 
    android:layout_below="@+id/header" 
    android:cacheColorHint="#00000000" 
    android:divider="#b5b5b5" 
    android:dividerHeight="1dp" 
    android:layout_alignParentBottom="true" />

</RelativeLayout>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
 >

<TextView
    android:id="@+id/txtTotalAmount"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/textView1"
    android:layout_below="@+id/textView1"
    android:text="TextView" />

<TextView
    android:id="@+id/txtItemDetails"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/textView3"
    android:layout_below="@+id/textView3"
    android:text="Item Details Here" />

<TextView
    android:id="@+id/textView1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentLeft="true"
    android:layout_alignParentTop="true"
    android:text="Total Amount:"
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:textColor="#a60704" />

<TextView
    android:id="@+id/textView3"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/txtTotalAmount"
    android:layout_below="@+id/txtTotalAmount"
    android:text="Ordered Items:"
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:textColor="#a60704" />

</RelativeLayout>

首先，你应该为你的post请求使用一个实例（因为这样的东西不应该在gui线程中运行，它会阻止它）。对于你的结果，你最好创建一个新的类。对于每个结果，你创建这个类的一个实例，并将它们放在一个
数组列表中

第二，退房。
使用
ArrayAdapter
-不需要自定义适配器。
使用带有自定义适配器的自定义列表视图。示例显示图像和文本。您可以显示文本而不是图像Google Android自定义BaseAdapter，这是您的解决方案。@Raghundandandan如果可能，请向我显示在我的程序中需要使用的代码行数以实现此目的nt ListView，大教程不会有帮助me@ChulbulPandey你检查一下，如果有用的话