Android First app launch

firstLaunch.java

// Add this method to the Activity
private boolean isFirstLaunch() {
    // Restore preferences
    SharedPreferences prefs = getSharedPreferences("MainApp_PREFS", 0);
    boolean isFirstLaunch = prefs.getBoolean("isFirstLaunch", true); // la chiave da cercare, se non esiste torna true
    
    return isFirstLaunch;
}

// and copy this in the onCreate() implementation

if (isFirstLaunch()) {
    startService(new Intent("it.udanet.server.service.HTTPService.ACTION_START"));
    // set the bool to false in next activity !
    prefs = getSharedPreferences("MainApp_PREFS", 0);
    Editor editor = prefs.edit();

    editor.putBoolean("isFirstLaunch", false);
    editor.commit();
}