Android studio - RatingBar setOnTouchListener not working properly

Question

I am trying to setup a scrollView where inside I have a Grid layout with few rating bars in it. When I click/touch on these the avarege value is sent to a final Rating Bar which is outside to the scrollView.

Everything is working however, each ratingbar need to be clicked/touched two times in order to send its value.

Any Idea why is this happening? If I move the grid layout outside from the scrollView the rating bars work as expected(on one click/touch)

Layout

the Code I am using to send the value from rating bar is:

    Valutazione[0].setOnTouchListener(new View.OnTouchListener() {
                @Override
                public boolean onTouch(View v, MotionEvent event) {
                    onClickRate1();
                    return false;
                }
            });

            Valutazione[1].setOnTouchListener(new View.OnTouchListener() {
                @Override
                public boolean onTouch(View v, MotionEvent event) {
                    onClickRate1();
                    return false;
                }
            });

            Valutazione[2].setOnTouchListener(new View.OnTouchListener() {
                @Override
                public boolean onTouch(View v, MotionEvent event) {
                    onClickRate1();
                    return false;
                }
            });

....

public void onClickRate1()
    {

        RatingBar Valutazione[] =
                {(RatingBar) findViewById(R.id.ratingBar1), (RatingBar) findViewById(R.id.ratingBar2),
                        (RatingBar) findViewById(R.id.ratingBar3), (RatingBar) findViewById(R.id.ratingBar4),
                        (RatingBar) findViewById(R.id.ratingBar5), (RatingBar) findViewById(R.id.ratingBar6),
                        (RatingBar) findViewById(R.id.ratingBar7), (RatingBar) findViewById(R.id.ratingBar8),
                        (RatingBar) findViewById(R.id.ratingBar9), (RatingBar) findViewById(R.id.ratingBar10)
                };
        RatingBar rateTot =(RatingBar) findViewById(R.id.ratingBartot);

        float Valore[]={0,1,2,3,4,5,6,7,8,9, 10};
        Valore[0]=0;Valore[1]=0;
        Valore[2]=0;Valore[3]=0;
        Valore[4]=0;Valore[5]=0;
        Valore[6]=0;Valore[7]=0;
        Valore[8]=0;Valore[9]=0;
        Valore[10]=0;

        int j=0, divisore=0;

        TextView finalResult = (TextView) findViewById(R.id.textrate);


        while(j<=9) {

            Valore[j] = Valutazione[j].getRating();

            if(Valore[j] > 0) divisore++;

            j++;
        }

        Valore[10] = ( Valore[0] +  Valore[1] +  Valore[2] +  Valore[3] +  Valore[4] +  Valore[5] +  Valore[6] + Valore[7] +  Valore[8] + Valore[9]) / divisore;


        totalRating(rateTot, Valore[10], finalResult);

    }



    private void totalRating(RatingBar totalBar, float valoreTotale, TextView totalText) {

        totalBar.setRating(valoreTotale);
}

Answer 1

Instead of setOnTouchListener use setOnRatingBarChangeListener.

1) import android.widget.RatingBar.OnRatingBarChangeListener;

then:

Valutazione[0].setOnRatingBarChangeListener(new OnRatingBarChangeListener() {
            @Override
            public void onRatingChanged(RatingBar ratingBar, float rating, boolean fromUser) {

                onClickRate1();
            }

        });