Android向上和向下滑动以隐藏按钮

Question

如何在Google +中实现滑动应用和向下滑动，我需要在片段中添加内容。任何想法？

Answer 1

我有2个解决方案：

1. https://github.com/LarsWerkman/QuickReturnListView您可以自定义页脚视图。

2. 你可以自己做。触发Listview或Gridview的onScrollListener

       listview.setOnScrollListener(new OnScrollListener() {
   
       @Override
       public void onScrollStateChanged(AbsListView view, int scrollState) {
   
       }
   
       @Override
       public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
   
   
           if (view.getId() == listview.getId()) {
               final int currentFirstVisibleItem = mGrid.getFirstVisiblePosition();
               if (currentFirstVisibleItem > mLastFirstVisibleItem) {
                   Log.i("a", "scrolling down...");
                   if (mIsScrollingUp) {
                       mIsScrollingUp = false;
                       bottomView.setTranslationY(bottomHeight);
                   }
               } else if (currentFirstVisibleItem < mLastFirstVisibleItem) {
                   Log.i("a", "scrolling up...");
                   if (!mIsScrollingUp) {
                       mIsScrollingUp = true;
                       bottomView.setTranslationY(0);
                   }
               }
   
               mLastFirstVisibleItem = currentFirstVisibleItem;
           }
   }
   

如果我的代码错误，请告诉我