Android代码调用Web服务给“应用程序意外停止”错误

Question

我已经尝试了一段时间，但我无法得到正确的output.I面临从我的Android代码调用Web服务的问题。我的web service code返回一个字符串，其间带有分隔符“＃”。现在我需要在Android的代码，将调用Web服务，使用复选框用户，使得实际名称显示分隔符选择

这里是我的Android代码：

package com.sencide; 

    import java.net.SocketException; 
    import android.app.Activity; 
    import android.app.AlertDialog; 
    import android.content.DialogInterface; 
    import android.os.Bundle; 
    import android.widget.TextView; 
    import org.ksoap2.SoapEnvelope; 
    import org.ksoap2.serialization.SoapObject; 
    import org.ksoap2.serialization.SoapPrimitive; 
    import org.ksoap2.serialization.SoapSerializationEnvelope; 
    import org.ksoap2.transport.HttpTransportSE; 


    public class TestApp extends Activity { 

private static final String SOAP_ACTION = "http://tempuri.org/getData"; 

    private static final String METHOD_NAME = "getData"; 

    private static final String NAMESPACE = "http://tempuri.org/"; 
    private static final String URL = "http://10.0.2.2/login2/Service1.asmx"; 
    TextView tv; 

boolean[] bln1=null; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 
    tv=(TextView)findViewById(R.id.text1); 


    String[] arr2= call(); 
    boolean[] bln = {false, false, false}; 

    bln1 = new boolean[arr2.length]; 


    new AlertDialog.Builder(TestApp.this) 
    .setIcon(R.drawable.alert_dialog_icon) 
    .setTitle("Title") 
    .setMultiChoiceItems(arr2, 
      bln, 
      new DialogInterface.OnMultiChoiceClickListener() { 
       public void onClick(DialogInterface dialog, int whichButton, 
         boolean isChecked) { 


        if(isChecked){ 
         bln1[whichButton] = true; 
        } 
        else{ 
         bln1[whichButton] = false; 
        } 
       } 
      }) 
     .setPositiveButton("Ok", new DialogInterface.OnClickListener() { 
     public void onClick(DialogInterface dialog, int whichButton) { 


     } 
     }) 
     .setNegativeButton("Cancel", new DialogInterface.OnClickListener() { 
     public void onClick(DialogInterface dialog, int whichButton) { 


     } 
     }) 
    .show(); 


     } 


     public String[] call() 
    { 
    SoapPrimitive responsesData = null; 

    SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME); 

    SoapSerializationEnvelope envelope = new SoapSerializationEnvelope( 
    SoapEnvelope.VER11); 
    envelope.dotNet = true; 
    envelope.setOutputSoapObject(request); 

    HttpTransportSE androidHttpTransport = new HttpTransportSE(URL); 

    androidHttpTransport.debug = true; 

    try { 

    androidHttpTransport.call(SOAP_ACTION, envelope); 

    responsesData = (SoapPrimitive) envelope.getResponse(); 
    System.out.println(" --- response ---- " + responsesData); 

    } catch (SocketException ex) { 
    ex.printStackTrace(); 
    } catch (Exception e) { 
    e.printStackTrace(); 
    } 
    System.out.println(" ----" + responsesData); 

    String serviceResponse= responsesData .toString(); 


    String[] temp; 
    String delimiter = "#"; 
    temp= serviceResponse.split(delimiter); 
    System.out.println(" ---- length ---- " + temp.length); 

    return temp; 
    } 


    } 

请谁能帮助我解决我的问题，因为每次我运行代码我得到一个错误说“应用程序意外终止”

感谢

Answer 1

您所呼叫的Web服务在UI线程，这意味着UI线程将被阻止，直到您从Web服务获得响应。由于Android是一个移动操作系统，它会终止阻塞的线程以提高性能。

尝试在Async Task中编写Web服务调用。使用异步任务，您可以在后台线程中运行Web服务调用，并且不会阻止您的UI线程。

这应该解决您的问题。