How to implement a registration activity in android that works only for once?

I'm designing an application that has an activity for registration process, this activity launches on default. I want this activity to be disabled forever once the registration process has been completed successfully and then it should be replaced by a different activity as the default activity for the rest of the lifetime of the application.I've tried to search my way through this problem but I've hardly found anything.Any help will be much appreciated. Thanks in advance.

-------------Problems Reply------------

Once registration is complete, commit some value to the SharedPreferences, then in your splash screen or some other opening Activity, check the preferences. If the value indicates that the registration is complete, start a different Activity instead of the Registration one...


public class SplashScreen extends Activity {

public void onCreate(Bundle state) {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
boolean regComplete = prefs.getBoolean("registration", false);
if(regComplete) {
startActivity(new Intent(this, SomeActivity.class));
} else {
startActivity(new Intent(this, Registration.class));


Better still:

Always launch the registration, but in onCreate(), simply launch a different Activity immediately and finish() the registration Activity if the prefs indicate that registration is complete.

Edit SharedPreferences explained:

SharedPreferences lets you persist primitive values in your app. You grab the SharedPreferences by doing:

SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);

then you write to SharedPreferences by getting the Editor. To do this, you call

SharedPreferences.Editor editor = prefs.Edit();

then you can commit values to the editor by using key/values:

editor.putBoolean("some string as a key here", true/false);

Then to actually save that, you call editor.commit();

Then you grab values back from SharedPreferences by simply calling

prefs.getBoolean("some previously chosen string as a key here", true/false);

where true/false is the default value that will be returned if no such key exists...

This is convenient and lets you do simple things like:

editor.putInt("some important number", 55);


int i = prefs.getInt("some important number", -1);

if(i != -1) {
//do stuff
} else {
//do other stuff

Also, please see:

Don't have the registration Activity be the default. Instead have another Activity as the default, and then at runtime it can check to see which Activity it should send the user to. If they haven't registered then startIntent( RegistrationActivity.class ).

Category:android Views:1 Time:2012-01-26

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