My onCreate method

    /**
     * This method will create the activity, read content to display, and show the main activity screen
     * Used when the activity is (re)created.
     *
     * @param savedInstanceState current saved instance state
     */
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
        View decorView = getWindow().getDecorView();
        decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN);
        setContentView(R.layout.activity_home);
        etUsername = findViewById(R.id.etUsername);
        etPassword = findViewById(R.id.etPassword);
        TextView tvWarning = findViewById(R.id.tvWarning);
        Button btnLogon = findViewById(R.id.btnLogon);
        btnLogon.setOnClickListener(this);
        @SuppressLint ("Recycle") Cursor cursor = getContentResolver().query(Uri.parse("content://com.phoenixhospman.install.ProviderSettings/settings"), null, null, null, null, null);
        assert cursor != null;
        if(cursor.moveToFirst()) {
            while(!cursor.isAfterLast()) {
                strCoName = cursor.getString(cursor.getColumnIndex("coname"));
                strApiUrl = cursor.getString(cursor.getColumnIndex("apiurl"));
                cursor.moveToNext();
            }
        } else {
            Error("\nRequired setting missing.\nPlease (re)run Phoenix Install App");
        }
        managerLauncherApi = new ManagerLauncherApi(strApiUrl);
        tvWarning.setText(getString(R.string.warning, rtrim(strCoName) ));
    }