解决ScrollView与ListView的冲突的方法

时间:2022-09-22 19:01:15

1.在ScrollView中添加一属性 android:fillViewport="true" ,这样就可以让ListView全屏显示了

2.指定ListView的高度 android:layout_height="420dp" ;   或单独写一个方法:

import android.view.View;
import android.view.ViewGroup;
import android.widget.ListAdapter;
import android.widget.ListView;

public class ListViewUnScoll {
   public static void setListViewHeightBasedOnChildren(ListView listView) {
   
          //获取ListView对应的Adapter

          ListAdapter listAdapter = listView.getAdapter();

          if (listAdapter == null) {

                 return;

          }

         

          int totalHeight = 0;

          for (int i = 0, len = listAdapter.getCount(); i < len; i++) {   //listAdapter.getCount()返回数据项的数目

                 View listItem = listAdapter.getView(i, null, listView);

                 listItem.measure(0, 0);  //计算子项View 的宽高

                 totalHeight += listItem.getMeasuredHeight();  //统计所有子项的总高度

          }

         

          ViewGroup.LayoutParams params = listView.getLayoutParams();

          params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));

          //listView.getDividerHeight()获取子项间分隔符占用的高度

          //params.height最后得到整个ListView完整显示需要的高度

          listView.setLayoutParams(params);

   }
}