protected override void OnLayout(bool changed, int l, int t, int r, int b)
{
base.OnLayout(changed, l, t, r, b);
if (_viewPager != null)
{
_viewPager.Measure(MyMeasureSpecFactory.MakeMeasureSpec(r - l, MeasureSpecMode.Exactly), MyMeasureSpecFactory.MakeMeasureSpec(b - t, MeasureSpecMode.Exactly));
_viewPager.Layout(0, 0, r - l, b - t);
}
}
