Clickable on TextView not working

Hello everyone, I'm having a problem with TextView, I'm trying to leave it with a wave effect similar to the button, I tried to implement "android: clickable = 'true'", but it did not work ... anyone know of any efficient method?

My FirstView.axml

My FirstView.cs

using Android.App;
using Android.OS;
using MvvmCross.Droid.Views;

namespace EfeitoWave.Droid.Views
{
[Activity(Label = "View do Android")]
public class FirstView : MvxActivity
{
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
SetContentView(Resource.Layout.FirstView);

    }
}

}