如何在 Android 登录/注销中管理会话？
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How can I manage session in Android login/logout?
提问by Krishna Veni
i successfully developed one login form. But now I am not able to manage session...also i have read more session concepts.but i can't do it.please explain me in detail. This is my code. Please help how I can use Session part here.
我成功开发了一个登录表单。但是现在我无法管理会话......我也阅读了更多的会话概念。但我做不到。请详细解释我。这是我的代码。请帮助我如何在此处使用会话部分。
This is my coding part:
这是我的编码部分：
package com.androidlogin.ws;
import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.PropertyInfo;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapPrimitive;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class AndroidLoginExampleActivity extends Activity {
private final String NAMESPACE = "http://ws.userlogin.com";
private final String URL = "http://111.223.128.10:8085/AndroidLogin/services/Login?wsdl";
private final String SOAP_ACTION = "http://ws.userlogin.com/authentication";
private final String METHOD_NAME = "authentication";
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button login = (Button) findViewById(R.id.btn_login);
login.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
loginAction();
}
});
}
private void loginAction(){
SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
EditText userName = (EditText) findViewById(R.id.tf_userName);
String user_Name = userName.getText().toString();
EditText 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
//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);
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.setOutputSoapObject(request);
HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
try{
androidHttpTransport.call(SOAP_ACTION, envelope);
SoapPrimitive response = (SoapPrimitive)envelope.getResponse();
TextView result = (TextView) findViewById(R.id.tv_status);
result.setText(response.toString());
}
catch(Exception e){
}
}
}
回答by Srinivas
Clear activity stack when doing logout operation.
执行注销操作时清除活动堆栈。
Intent intent = new Intent(this, LoginActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
Then back button will stay at LoginActivity since the activity stack is cleared. I guess it will help you.
由于活动堆栈被清除，后退按钮将停留在 LoginActivity。我想它会帮助你。
回答by Viral Shah
check this one.. it will help you to maintain sessions in Android
检查这个..它将帮助您在Android中维护会话
https://stackoverflow.com/a/6112799/1358004
https://stackoverflow.com/a/6112799/1358004
Android App Strategy for keeping track of a login session(this link will display all aspects in-terms of maintaining sessions for login / logout.
跟踪登录会话的 Android 应用策略（此链接将显示维护登录/注销会话的所有方面。
I guess it will help you.
我想它会帮助你。
回答by Binesh Kumar
You can clear your session like as
您可以像这样清除会话
MySession session = MySession .getInstance(MainActivity.this);
session.clear();
Intent intent = new Intent(getApplicationContext(), MainActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
finish();
回答by vijay surya
just call finish()once the logoutbutton is clicked way to use:
单击按钮后只需调用finish()即可logout使用：
in activity call ==>finish();
在活动调用中 ==>finish();
in fragment call ==> context.finish();
在片段调用中 ==> context.finish();
hope that helps.
希望有帮助。
