public async void AddReviewBtn_Click(object sender, EventArgs e)
{
comment = commentTV.Text;
overall = overallRB.Rating;
quality = qualityRB.Rating;
punctuality = punctualityRB.Rating;
flexibility = flexibilityRB.Rating;
enthusiasm = enthusiasmRB.Rating;
similarity = similarityRB.Rating;
int result = await MusicoConnUtil.AddReview(comment, overall, quality, punctuality, flexibility, enthusiasm, similarity, userId, bandId);
Intent intent = new Intent(this, typeof(ReviewsActivity));
intent.PutExtra("name", bandName);
intent.PutExtra("id", userId);
Toast.MakeText(this, "Review added!", ToastLength.Short).Show();
StartActivity(intent);
Finish();
}