如何在xamarin中使用OnPageScrollStateChanged

Question

我被困在一個點，如果視圖尋呼機的狀態被改變，我需要隱藏列表視圖。即如果我從視圖尋呼機中的片段1滑動到片段2，我希望我的列表視圖隱藏。這可以通過OnPageScrollStateChanged來實現，我不知道xamarin studio上的實現。

Answer 1

以下可能的疑問句

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); 


     } 
}