在屏幕底部隐藏linearlayout，而列表视图滚动

Question

我有一个自定义列表视图和线性布局与在屏幕底部的textview。我已经实现了一个OnScrollListener来在滚动时隐藏操作栏和线性布局，并在滚动完成后返回。该Actionbar是隐藏顺利没有任何闪烁和口吃，但与linearlayout不是。我使用动画来隐藏布局，但我无法完全实现。我需要的布局应该像twitter应用程序一样隐藏底部布局在滚动时平滑隐藏。请帮忙。

mViews.lists.setOnScrollListener(new AbsListView.OnScrollListener() { 
     int mLastFirstVisibleItem = 0; 
     @Override 
     public void onScrollStateChanged(AbsListView view, int scrollState) { 

     } 

     @Override 
     public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) { 
      android.support.v7.app.ActionBar actionBar = getSupportActionBar(); 
      if (view.getId() == mViews.lists.getId()) { 
       final int currentFirstVisibleItem = mViews.lists.getFirstVisiblePosition(); 

       if (currentFirstVisibleItem > mLastFirstVisibleItem) { 
        // getSherlockActivity().getSupportActionBar().hide(); 
        if (actionBar != null) { 
         actionBar.hide(); 
         mViews.linear.startAnimation(animHide); 
         mViews.linear.setVisibility(View.GONE); 



        } 
       } else if (currentFirstVisibleItem < mLastFirstVisibleItem) { 
        // getSherlockActivity().getSupportActionBar().show(); 
        actionBar.show(); 
       mViews.linear.startAnimation(animShow); 
        mViews.linear.setVisibility(View.VISIBLE); 



       } 

       mLastFirstVisibleItem = currentFirstVisibleItem; 
      } 
     } 
    }); 

隐藏和显示XML：

<?xml version="1.0" encoding="utf-8"?> 
<set xmlns:android="http://schemas.android.com/apk/res/android" 
android:fillAfter="true"> 
<scale 
    android:fromYScale="1.0" 
    android:interpolator="@android:anim/linear_interpolator" 
    android:toYScale="0.0" /> 
</set> 



<?xml version="1.0" encoding="utf-8"?> 
<set xmlns:android="http://schemas.android.com/apk/res/android" 
android:fillAfter="true" > 

<scale 
    android:fromYScale="0.0" 
    android:interpolator="@android:anim/linear_interpolator" 
    android:toYScale="1.0" /> 
</set> 

Answer 1

试试这个：

lv.setOnScrollListener(new AbsListView.OnScrollListener() { 
     @Override 
     public void onScrollStateChanged(AbsListView view, int scrollState) { 

      if(scrollState == SCROLL_STATE_TOUCH_SCROLL){ 

      //Paste here the code for hiding the layout 

      }else{ 

      //Paste here the code for showing the layout 

      } 
     } 

     @Override 
     public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) { 

     } 
    });