【发布时间】：2014-09-25 13:23:52
【问题描述】：
我想让我的应用程序保存会话以在我终止进程时不再登录：当我登录 Main.java 时，他将我重定向到 Menu.java 然后在我再次杀死进程后，他应该采取我直接进入 Menu.java 无需登录并保存用户名
一模一样的短裙http://www.tutorialspoint.com/android/android_session_management.htm
这是 Main.java “登录页面”
public class Main extends Activity {
Button b;
EditText et,pass;
TextView tv;
HttpPost httppost;
StringBuffer buffer;
HttpResponse response;
HttpClient httpclient;
List<NameValuePair> nameValuePairs;
ProgressDialog dialog = null;
public static final String data = "ett";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button exit = (Button)findViewById(R.id.button18);
exit.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
finish();
Intent exit = new Intent(Intent.ACTION_MAIN);
exit.addCategory(Intent.CATEGORY_HOME);
exit.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(exit);
}
});
b = (Button)findViewById(R.id.Button01);
et = (EditText)findViewById(R.id.username);
pass= (EditText)findViewById(R.id.password);
tv = (TextView)findViewById(R.id.tv);
b.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
dialog = ProgressDialog.show(Main.this, "",
"Verification ...", true);
new Thread(new Runnable() {
public void run() {
login();
}
}).start();
}
});
}
void login(){
try{
httpclient=new DefaultHttpClient();
httppost= new HttpPost("http://192.168.1.4/android/etc.php"); // make sure the url is correct.
//add your data
nameValuePairs = new ArrayList<NameValuePair>(2);
// Always use the same variable name for posting i.e the android side variable name and php side variable name should be similar,
nameValuePairs.add(new BasicNameValuePair("username",et.getText().toString().trim())); // $Edittext_value = $_POST['Edittext_value'];
nameValuePairs.add(new BasicNameValuePair("password",pass.getText().toString().trim()));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
//Execute HTTP Post Request
response=httpclient.execute(httppost);
// edited by James from coderzheaven.. from here....
ResponseHandler<String> responseHandler = new BasicResponseHandler();
final String response = httpclient.execute(httppost, responseHandler);
System.out.println("Response : " + response);
runOnUiThread(new Runnable() {
public void run() {
tv.setText("Response from PHP : " + response);
dialog.dismiss();
}
});
if(response.equalsIgnoreCase("User Found")){
runOnUiThread(new Runnable() {
public void run() {
Toast.makeText(Main.this,"Login Success", Toast.LENGTH_SHORT).show();
}
});
SharedPreferences setting = getSharedPreferences(data, 0);
SharedPreferences.Editor editor = setting.edit();
editor.putString("et", et.getText().toString());
editor.commit();
Intent intent=new Intent(Main.this, Menu.class);
startActivity(intent);
}else{
showAlert();
}
}catch(Exception e){
dialog.dismiss();
System.out.println("Exception : " + e.getMessage());
}
}
public void showAlert(){
Main.this.runOnUiThread(new Runnable() {
public void run() {
AlertDialog.Builder builder = new AlertDialog.Builder(Main.this);
builder.setTitle("Erreur d'identification");
builder.setMessage("Code ou mot de passe incorrecte")
.setCancelable(false)
.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
}
});
AlertDialog alert = builder.create();
alert.show();
}
});
}
}
Menu.java 保存会话后应用应该在哪里启动
public class Menu extends ActionBarActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.menus);
Button button1 = (Button)findViewById(R.id.button1);
Button button3 = (Button)findViewById(R.id.button3);
Button button4 = (Button)findViewById(R.id.button4);
Button button14 = (Button)findViewById(R.id.button14);
Button button5 = (Button)findViewById(R.id.button5);
Button exit = (Button)findViewById(R.id.button18);
button1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent1 = new Intent(Menu.this, emploi.class);
startActivity(intent1);
}
});
button3.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent2 = new Intent(Menu.this, Maritimnews.class);
startActivity(intent2);
}
});
button4.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent3 = new Intent(Menu.this, Resultats.class);
startActivity(intent3);
}
});
button14.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent4 = new Intent(Menu.this, Demande.class);
startActivity(intent4);
}
});
button5.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent5 = new Intent(Menu.this, Apropos.class);
startActivity(intent5);
}
});
exit.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
finish();
Intent exit = new Intent(Intent.ACTION_MAIN);
exit.addCategory(Intent.CATEGORY_HOME);
exit.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(exit);
}
});
}
}
我不知道我将 sharedpreferces 放在哪里以使其保存会话 那里的 sharedpreferences 仅用于在 Main.java 和 Menu.java 之间传递数据 我不想添加另一个 sheredPreferences 来保存像 facebook 这样的会话意味着当我登录 Main.java ---redirecte--> Menu.java 所以如果我再次关闭运行应用程序，他将从 Menu.java 开始 :) 和谢谢
【问题讨论】：
标签： java android session sharedpreferences