Android AsyncTask 問題(連接到網絡服務)

Question

所以我正在处理应用程序的登录活动，我想使用 AsynTask 连接到 (SOAP( Web 服务，我将向 Web 服务发送密钥、用户名和密码，无论用户是否有效，它都会给我一个布尔结果......在尝试 AsyncTask 之前，我使用的是我在网上找到的方法，您可以在其中创建一个 -caller 类 - 扩展 -Thread 类 - 并在 -MainActivity 中使用一个 while 循环，使 -UI 线程休眠 - 嗯，它正在工作，但它感觉有点不正确的方法，所以我研究了它并找到了 AsyncTask，但我似乎无法让它工作......PS ：我无法共享网络服务的URL，因为它属于我的大学，对此感到抱歉。

public class LoginActivity extends AppCompatActivity {
Button loginButton;
EditText usernumber,password;
boolean result;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
getSupportActionBar().hide();
loginButton = (Button) findViewById(R.id.loginButton);
usernumber = (EditText) findViewById(R.id.userNum);
password = (EditText) findViewById(R.id.userPass);
loginButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
try {
new CallLoginWS().execute();
if(result == true){
Intent bEmpIntent = new Intent(LoginActivity.this,BasicEmployeeActivity.class);
startActivity(bEmpIntent);
}else{
Toast.makeText(LoginActivity.this,"username or password incorrect",Toast.LENGTH_SHORT).show();
}
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
public class CallLoginWS extends AsyncTask<Void,Void,Void> {
private final String SOAP_ACTION = "";
private final String OPERATION_NAME = "IsValidUser";
private final String WSDL_TARGET_NAMESPACE = "";
private final String HOST = "";
private final String FILE = "";
private final String KEY = "";
@Override
protected Void doInBackground(Void... voids) {
SoapObject request = new SoapObject(WSDL_TARGET_NAMESPACE,OPERATION_NAME);
PropertyInfo pi=new PropertyInfo();
pi.setName("usagekey");
pi.setValue(KEY);
pi.setType(String.class);
request.addProperty(pi);
pi = new PropertyInfo();
pi.setName("username");
pi.setValue(usernumber.getText().toString());
pi.setType(String.class);
request.addProperty(pi);
pi = new PropertyInfo();
pi.setName("password");
pi.setValue(password.getText().toString());
pi.setType(String.class);
request.addProperty(pi);
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.dotNet = true;
envelope.setOutputSoapObject(request);
HttpsTransportSE httpsTransport = new HttpsTransportSE(HOST,443,FILE,15000);
SSLConnection ssl = new SSLConnection();
ssl.allowAllSSL();
try
{
httpsTransport.call(SOAP_ACTION, envelope);
result = (boolean)envelope.getResponse();
}
catch (Exception exception)
{
exception.printStackTrace();
}
return null;
}
}

}

我是新手，我现在真的很迷茫，所以任何帮助/建议都非常感谢。

Answer 1

你需要移动这个代码

if(result == true){
Intent bEmpIntent = new Intent(LoginActivity.this,BasicEmployeeActivity.class);
startActivity(bEmpIntent);
}else{
Toast.makeText(LoginActivity.this,"username or password incorrect",Toast.LENGTH_SHORT).show();
}

到 onPostExecute(( 的 asynctask