public void setDots(Dots dots) { this.dots = dots; dots.setDotsChangeListener( new Dots.DotsChangeListener() { @Override public void onDotsChange(Dots dots) { invalidate(); } }); }
@Override protected void onDraw(Canvas canvas) { if (dots == null) return; canvas.drawColor(Color.WHITE); Paint paint = new Paint(); paint.setStyle(Style.FILL); for (Dot dot : dots.getDots()) { paint.setColor(dot.getColor()); canvas.drawCircle(dot.getX(), dot.getY(), dot.getDiameter(), paint); } }