MainActivity.java

@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if (resultCode == RESULT_OK && data != null) {
        switch (requestCode) {
            case 10:
                
            case 20:
                
            case 30:
             
        }
    } else {
        Toast.makeText(getApplicationContext(), "Failed to recognize speech!", Toast.LENGTH_LONG).show();
    }
}