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); } }