ListView与ScrollView冲冲突

来源：互联网发布：网络被禁用了怎么恢复编辑：程序博客网时间：2024/04/29 04:34

因为ListView与ScrollView 都自带了可滑动的功能，但当两者同时使用时会出现冲突

解决的办法是，对Listview进行设置高度即可。

ExpandableListView expandView=(ExpandableListView) findViewById(R.id.ShowItem_ExpandView);
  expandView.setAdapter(expandAdapter);
  setListViewHeight(expandView);
  expandView.setOnGroupClickListener(groupClickLis);

设置ListView的适配器

private ExpandableListAdapter expandAdapter=new ExpandableListAdapter()
{
  public void unregisterDataSetObserver(DataSetObserver observer) {
   // TODO 自动生成的方法存根
  }
  public void registerDataSetObserver(DataSetObserver observer) {
   // TODO 自动生成的方法存根
  }
  public void onGroupExpanded(int groupPosition) {
   // TODO 自动生成的方法存根
  }
  public void onGroupCollapsed(int groupPosition) {
   // TODO 自动生成的方法存根
  }
  public boolean isEmpty() {
   // TODO 自动生成的方法存根
   return false;
  }
  public boolean isChildSelectable(int groupPosition, int childPosition) {
   // TODO 自动生成的方法存根
   return false;
  }
  public boolean hasStableIds() {
   // TODO 自动生成的方法存根
   return false;
  }
  public long getGroupId(int groupPosition) {
   // TODO 自动生成的方法存根
   return 0;
  }
  public Object getGroup(int groupPosition) {
   // TODO 自动生成的方法存根
   return null;
  }
  public long getCombinedGroupId(long groupId) {
   // TODO 自动生成的方法存根
   return 0;
  }
  public long getCombinedChildId(long groupId, long childId) {
   // TODO 自动生成的方法存根
   return 0;
  }
  public long getChildId(int groupPosition, int childPosition) {
   // TODO 自动生成的方法存根
   return 0;
  }
  public Object getChild(int groupPosition, int childPosition) {
   // TODO 自动生成的方法存根
   return null;
  }
  public boolean areAllItemsEnabled() {
   // TODO 自动生成的方法存根
   return false;
  }

  public int getGroupCount()
  {
   return 3;
  }

  public View getGroupView(int groupPosition, boolean isExpanded,
    View convertView, ViewGroup parent)
  {


   return convertView;
  }

  public int getChildrenCount(int groupPosition)
  {
   int len=0;
   switch(groupPosition)
   {
   }
   return len;
  }

  public View getChildView(int groupPosition, int childPosition,
    boolean isLastChild, View convertView, ViewGroup parent)
  {
    convertView=webView;
   }
   return convertView;

  }
};

/**
* ExpandableListView 监听
*/
OnGroupClickListener groupClickLis=new OnGroupClickListener()
{
  public boolean onGroupClick(ExpandableListView parent, View v,
    int groupPosition, long id)
  {
   setListViewHeight(parent, groupPosition);
   return false;
  }
};

/**
* 给每一个ListView设置高度
* @param listView
*/
private void setListViewHeight(ListView listView)
{
  ListAdapter listAdapter = listView.getAdapter();
  int totalHeight = 0;
  for (int i = 0; i < listAdapter.getCount(); i++)
  {
   View listItem = listAdapter.getView(i, null, listView);
   listItem.measure(0, 0);
   totalHeight += listItem.getMeasuredHeight();
  }

  ViewGroup.LayoutParams params = listView.getLayoutParams();
  params.height = totalHeight
    + (listView.getDividerHeight() * (listAdapter.getCount() - 1)+50);
  listView.setLayoutParams(params);
  listView.requestLayout();
}

/**
* 给ExpandableListView 设置高度（）
*/
private void setListViewHeight(ExpandableListView listView,int group)
{
  ExpandableListAdapter listAdapter = listView.getExpandableListAdapter();
  int totalHeight = 0;
  int desiredWidth = MeasureSpec.makeMeasureSpec(listView.getWidth(),
    MeasureSpec.AT_MOST);
  for (int i = 0; i < listAdapter.getGroupCount(); i++)
  {
   View groupItem = listAdapter.getGroupView(i, false, null, listView);
   groupItem.measure(desiredWidth, MeasureSpec.UNSPECIFIED);

totalHeight += groupItem.getMeasuredHeight();

   if (((listView.isGroupExpanded(i)) && (i != group))
     || ((!listView.isGroupExpanded(i)) && (i == group)))
   {
    for (int j = 0; j < listAdapter.getChildrenCount(i); j++)
    {
     View listItem = listAdapter.getChildView(i, j, false, null,
       listView);
     listItem.measure(desiredWidth, MeasureSpec.UNSPECIFIED);

totalHeight += listItem.getMeasuredHeight();

    }
   }
  }
  ViewGroup.LayoutParams params = listView.getLayoutParams();
  int height = totalHeight
    + (listView.getDividerHeight() * (listAdapter.getGroupCount() - 1)+50);
  if (height < 10)
   height = 200;
  params.height = height;
  listView.setLayoutParams(params);
  listView.requestLayout();
}
}

0 0