如何在xamarin中使用OnPageScrollStateChanged

Question

如果视图寻呼机的状态发生变化,我需要隐藏列表视图.即如果我在视图寻呼机中从片段1滑动到片段2,我希望我的列表视图隐藏.这可能是由OnPageScrollStateChanged实现的,我不知道xamarin工作室的实现.

Answer 1

以下可能是问题的方法

public class HomePageActivity : FragmentActivity, Android.Support.V4.View.ViewPager.IOnPageChangeListener
    {
protected override void OnCreate (Bundle bundle)
        {
            base.OnCreate (bundle);

            // Create your application here
            SetContentView(Resource.Layout.home);
var viewPager_up = FindViewById<Android.Support.V4.View.ViewPager>(Resource.Id.viewPager_up);
viewPager_up.AddOnPageChangeListener (this);

}
public void OnPageScrollStateChanged (int state)
        {
            Console.WriteLine ("OnPageScrollStateChanged "+" "+state);
        }
        public void OnPageScrolled (int position, float positionOffset, int positionOffsetPixels){
Console.WriteLine ("OnPageScrolled "+" "+position);
}

        public void OnPageSelected (int position)
        {
            Console.WriteLine ("OnPageSelected"+" "+position);


        }
}