I need a little help again with Android SharedPreference.I was earching for a way to save the user state if he is logged in or not..So I did this part, but now the problem is something else.I have a tabhost which include a few tabs and the Login page is started from one of the child Activities.Here is a little example :
TAB1 - TAB2 - TAB3
TAB1 --> ACT1 (child activity of TAB1) ACT1 ---> Login Page.
So I'm using SharedPreferences to get and set the isLoggedIn states,but the problem is that I want to reload the UI when I close the Login Page, so TAB1 can show the new element.
Here is my code for now :
Login Page :
SharedPreferences isLogged = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
SharedPreferences.Editor editor = isLogged.edit();
editor.putBoolean("isLoggedIn", true);
editor.commit();
this.notifyAll();
and in TAB1 I have this :
SharedPreferences isLogged = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
boolean isLoggedIn = isLogged.getBoolean("isLoggedIn", false);
Any idea how to fix that?
As I understand your problem you want to recongnize when the user logged into on your "LoginActivity" so that you can reload the "TabActivity" right? You can do this by returning a result to the parent activity.
public class StackOverflowActivity extends Activity {
public static final int LOGIN_REQUEST = 100;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button btn = (Button) findViewById(R.id.button1);
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent i = new Intent(StackOverflowActivity.this, Login.class);
startActivityForResult(i, LOGIN_REQUEST);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case LOGIN_REQUEST:
// TODO implement UI refresh
Toast.makeText(getApplicationContext(), "I am coming from the login activity!",
Toast.LENGTH_LONG).show();
break;
default:
Toast.makeText(getApplicationContext(), "Unexpected request code!",
Toast.LENGTH_LONG).show();
break;
}
}
}
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