Circles class

package com.example.student.test;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.support.annotation.Nullable;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;

import java.util.ArrayList;


public class Circles extends View {
    class Circle {
        float x, y, r;
        int number, color;
        public void Draw (Canvas canvas) {

        }
    }

    float x = 0, y =0;
    ArrayList<Circle> list = new ArrayList<>();

    public Circles(Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        Paint p = new Paint();
        p.setColor(Color.RED);
        p.setColor(Color.rgb(80,30,20));
        canvas.drawCircle(x,y,30, p);
        canvas.drawText(...);
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        x = event.getX(); y = event.getY();
        invalidate();
        if (event.getAction() == MotionEvent.ACTION_DOWN) {

        }
        return true;
    }
}