public void OnPageScrollStateChanged(int state)
{
if (Settings.DisplayToolbarWhenSwipe)
{
MaterialViewPagerHelper.GetAnimator(Context).OnViewPagerPageChanged();
}
}
protected override IParcelable OnSaveInstanceState()
{
IParcelable superState = base.OnSaveInstanceState();
SavedState ss = new SavedState(superState)
{
Settings = Settings,
YOffset = MaterialViewPagerHelper.GetAnimator(Context).LastYOffset
};
//end
return(ss);
}
private void SetMaterialHeight()
{
//get the MaterialViewPagerAnimator attached to this activity
//to retrieve the declared header height
//and set it as current view height (+10dp margin)
MaterialViewPagerAnimator animator = MaterialViewPagerHelper.GetAnimator(Context);
if (animator != null)
{
ViewGroup.LayoutParams param = LayoutParameters;
param.Height = (int)Math.Round(Utils.DpToPx(animator.GetHeaderHeight() + 10, Context));
LayoutParameters = param;
}
}
protected override void OnRestoreInstanceState(IParcelable state)
{
SavedState ss = (SavedState)state;
base.OnRestoreInstanceState(ss.SuperState);
Settings = ss.Settings;
if (HeaderBackground != null)
{
HeaderBackground.SetBackgroundColor(new Color(Settings.Color));
}
MaterialViewPagerAnimator animator = MaterialViewPagerHelper.GetAnimator(Context);
//-1*ss.yOffset restore to 0
animator.RestoreScroll(-1 * ss.YOffset, ss.Settings);
MaterialViewPagerHelper.Register(Context, animator);
}
/**
* Change the header color
*/
public void SetColor(int color, int fadeDuration)
{
MaterialViewPagerHelper.GetAnimator(Context).SetColor(color, fadeDuration * 2);
}
