PagerIndicator.java

public class PagerIndicator extends View {
    private Paint paint;
    private Paint currentPaint;
    private ViewPager pager;
    private int desiredRadius;
    private Rect bounds = new Rect();

    // Constructors ...

    private void setup() {
        paint = new Paint();
        paint.setColor(Color.LTGRAY);
        paint.setStyle(Paint.Style.FILL_AND_STROKE);
        paint.setAntiAlias(true);

        currentPaint = new Paint();
        currentPaint.setColor(Color.WHITE);
        currentPaint.setStyle(Paint.Style.FILL_AND_STROKE);
        currentPaint.setAntiAlias(true);
    }
}