CustomActivity.java

import android.content.Intent;
import android.os.Handler;
import androidx.appcompat.app.AppCompatActivity;
import com.google.androidbrowserhelper.trusted.LauncherActivity;

public class CustomActivity extends AppCompatActivity {
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_splash);
        // checking if a valid chrome installed in user's
        // device or not using a custom made function which
        // 
        boolean _isValidChrome = isValidChrome(getApplicationContext());
        if (_isValidChrome) {
            Intent LauncherIntent = new Intent(SplashActivity.this, LauncherActivity.class);
            // if chrome version is greater than 75
            // then custom splash screen can be used
            if (chromeVersion >= 75) {
                startActivity(LauncherIntent);
                finish();
            } else {
                // to handle custom splash screen
                // adding a custom delay,of 500 ms
                // to launch the 
                Handler handler = new Handler();
                handler.postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        startActivity(LauncherIntent);
                        finish();
                    }
                }, 500);
            }
        } else {
            // to handle the case where user 
            // don't have chrome which has TWA support
            // starting a new chromeactivity which you can
            // create of your own and,design on your own
          
            // First create a activity and design it,using its
            // layout file.
            Intent chromeActivity = new Intent(this, ChromeUpdate.class);
            startActivity(chromeActivity);
            finish();
        }

    }
}