عوض نشدن دایره توپر در پروژه اسلایدر (حل نشده) لطفا کمک کنید

دوستان من قدم به قدم پیش رفتم توی قسمتای آخر که باید با عوض کردن عکس دایره توپر جای دایره توخالی رو بگیره مشکل دارم مال من عوض نمیشه من کدها رو می زارم لطفا مشکل رو بفرمایید:

 public class PageIndicator extends ImageView {

    private Paint            fillpaint;
    private Paint            strokpaint;
    private int              count;
    private int              indecatorWidth;
    private static final int CIRCLE_RADIUS = 10;
    private static final int CIRCLE_SPACE  = 10;
    private int              screenWidth;
    private float            offsetX;
    private int              currentPageIndex;


    public PageIndicator(Context context) {
        super(context);
        initialize();
    }


    public PageIndicator(Context context, AttributeSet attrs) {
        super(context, attrs);
        initialize();
    }


    public PageIndicator(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        initialize();
    }


    private void initialize() {
        fillpaint = new Paint();
        fillpaint.setStyle(Style.FILL);
        fillpaint.setColor(Color.GREEN);
        fillpaint.setAntiAlias(true);

        strokpaint = new Paint();
        strokpaint.setStyle(Style.STROKE);
        strokpaint.setColor(Color.GREEN);
        strokpaint.setAntiAlias(true);
        screenWidth = G.context.getResources().getDisplayMetrics().widthPixels;

    }


    public void setIndecatorCoutn(int value) {
        count = value;
        comuteIndecatorWidth();
    }


    public void setCurrentPage(int value) {
        currentPageIndex = value;
    }


    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);

        for (int i = 0; i < count; i++) {
            Paint paint = strokpaint;
            if (i == currentPageIndex) {
                paint = fillpaint;
            }
            canvas.drawCircle(offsetX + i * (CIRCLE_RADIUS + CIRCLE_SPACE), 10, CIRCLE_RADIUS / 2.0f, paint);
        }

    }


    private void comuteIndecatorWidth() {
        indecatorWidth = count * (CIRCLE_RADIUS + CIRCLE_SPACE);
        offsetX = (screenWidth - indecatorWidth) / 2;

    }
}
///////////////////////////////////////////////////////////////////////////////

 public class Splash extends FragmentActivity {

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.splash);
        final PageIndicator indecater = (PageIndicator) findViewById(R.id.indicater);
        ArrayList<Integer> imageIds = new ArrayList<Integer>();
        for (int i = 1; i < 8; i++) {
            int imageId = G.context.getResources().getIdentifier("image" + i, "drawable", G.context.getPackageName());
            imageIds.add(imageId);
        }
        indecater.setIndecatorCoutn(7);

        ViewPager pager = (ViewPager) findViewById(R.id.pager);
        pager.setOnPageChangeListener(new OnPageChangeListener() {

            @Override
            public void onPageSelected(int index) {

            }


            @Override
            public void onPageScrolled(int index, float arg1, int arg2) {
                // TODO Auto-generated method stub
                indecater.setCurrentPage(index);

            }


            @Override
            public void onPageScrollStateChanged(int arg0) {
                // TODO Auto-generated method stub

            }
        });
        ImagePagerAdapter adapter = new ImagePagerAdapter(imageIds);
        pager.setAdapter(adapter);

    }
}
//////////////////////////////////////////////////////////////////////////

 public class ImagePagerAdapter extends PagerAdapter {

    public ArrayList<Integer> imageIds;


    public ImagePagerAdapter(ArrayList<Integer> strings) {
        this.imageIds = strings;

    }


    @Override
    public int getCount() {
        return imageIds.size();
    }


    @Override
    public boolean isViewFromObject(View view, Object object) {
        return view.equals(object);
    }


    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        View view = G.layoutInflater.inflate(R.layout.sample, null);
        ImageView img = (ImageView) view.findViewById(R.id.image);
        img.setImageResource(imageIds.get(position));
        container.addView(view);
        return view;
    }


    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
        container.removeView((View) object);
    }
}