Android using shared preferences to check on first run

Question

Hi I'm trying to detect whether my app has been opened for the first time. If it has, I need to run an activity and once it's opened for the second time it should not show it again.

This is my code:

fragment:

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    //Intent intent = new Intent(getActivity(), TutorialFeaturedActivity.class);
    //startActivity(intent);

    SharedPreferences settings = this.getActivity().getSharedPreferences(PREFS_NAME, 0); // Get preferences file (0 = no option flags set)
    boolean firstRun = settings.getBoolean("firstRun", true); // Is it first run? If not specified, use "true"

    if(firstRun) {
        Log.w("onCreate: ","first time" );
        Intent intent = new Intent(getActivity(), TutorialFeaturedActivity.class);
        startActivity(intent);

        SharedPreferences.Editor editor = settings.edit(); // Open the editor for our settings
        editor.putBoolean("firstRun", false); // It is no longer the first run
        editor.apply(); // Save all changed settings
    } else {
        Log.w("onCreate: ","second time");
        Intent intent = new Intent(getActivity(), MainActivity.class);
        startActivity(intent);
    }

    getSpecials();
}

But all it does is start the activity and when I start it again it freezes in a white screen but checking the logs it shows like the else statement is constantly running over and over. I'm fairly new to Android so some help or advice would be greatly appreciated

Answer 1

@Override
public void onCreate(Bundle savedInstanceState)
 {
    super.onCreate(savedInstanceState);
    SharedPreferences pref = YourActivityName.this.getSharedPreferences(PREFS_NAME,0);
    SharedPreferences.Editor editor= pref.edit();
    boolean firstRun = pref.getBoolean("firstRun", true); 
    if(firstRun)
    {
        Log.i("onCreate: ","first time" );
        editor.putBoolean("firstRun",false);
        editor.commit();
        Intent intent = new Intent(getActivity(), TutorialFeaturedActivity.class);
        startActivity(intent);
    }
    else
    {
        Log.i("onCreate: ","second time");
        Intent intent = new Intent(getActivity(), MainActivity.class);
        startActivity(intent);

    }
   // getSpecials();
}