我必须开发一个 android 应用程序。
在这里，我使用了以下代码。
public class MainActivity extends Activity {
String status;
EditText username,userPassword;
SoapSerializationEnvelope envelope;
private final String NAMESPACE = "http://pricealert.com";
private final String URL = "http://192.168.2.102:8085/PriceAlert/services/Login?wsdl";
private final String SOAP_ACTION = "http://pricealert.com/authentication";
private final String METHOD_NAME = "authentication";
private String uName;
HttpTransportSE androidHttpTransport;
/**Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
username = (EditText) findViewById(R.id.tf_userName);
userPassword = (EditText) findViewById(R.id.tf_password);
Button login = (Button) findViewById(R.id.btn_login);
login.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
new LoginOperation().execute();
}
});
}
class LoginOperation extends AsyncTask<String, Void, String> {
private ProgressDialog Dialog = new ProgressDialog(MainActivity.this);
@Override
protected String doInBackground(String... aurl) {
// TODO Auto-generated method stub
SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
username = (EditText) findViewById(R.id.tf_userName);
String user_Name = username.getText().toString();
userPassword = (EditText) findViewById(R.id.tf_password);
String user_Password = userPassword.getText().toString();
//Pass value for userName variable of the web service
PropertyInfo unameProp =new PropertyInfo();
unameProp.setName("username");//Define the variable name in the web service method
unameProp.setValue(user_Name);//set value for userName variable
unameProp.setType(String.class);//Define the type of the variable
request.addProperty(unameProp);//Pass properties to the variable it means
//Pass value for Password variable of the web service
PropertyInfo passwordProp =new PropertyInfo();
passwordProp.setName("password");
passwordProp.setValue(user_Password);
passwordProp.setType(String.class);
request.addProperty(passwordProp);
envelope = new SoapSerializationEnvelope(
SoapEnvelope.VER12);
envelope.setOutputSoapObject(request);
androidHttpTransport = new HttpTransportSE(URL);
runOnUiThread(new Runnable() {
@Override
public void run() {
try{
androidHttpTransport.call(SOAP_ACTION, envelope);
SoapPrimitive response = (SoapPrimitive)envelope.getResponse();
status = response.toString();
TextView result = (TextView) findViewById(R.id.tv_status);
result.setText(response.toString());
}
catch(Exception e){
}
}
});
return null;
}
protected void onPreExecute() {
Dialog.setMessage("Loading...");
Dialog.show();
}
protected void onPostExecute(String resultGot) {
Dialog.dismiss();
}
}
}
如果我必须在android 2.2上添加应用程序，则意味着它可以完美运行并返回成功和失败值。
但是相同的代码在android 4.0版本上运行意味着没有收到任何（成功或失败）toast 消息，也没有在我的 logcate 窗口上收到任何错误？？？我的代码有什么问题？？？请为我提供一些解决方案来解决这些问题？？？