Android ExpandableListView 中完美嵌套 GridView

package com.example.expandablelistviewtest.adapter; import android.content.Context; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.BaseExpandableListAdapter; import android.widget.GridView; import android.widget.ImageView; import android.widget.TextView; import android.widget.Toast; import com.example.expandablelistviewtest.R; import java.util.List; /** * ExpandableListView 适配器 */ public class MyExpandableListViewAdapter extends BaseExpandableListAdapter { private Context mContext; /** * 每个分组的名字的集合 */ private List<String> groupList; /** * 所有分组的所有子项的 GridView 数据集合 */ private List<List<String>> itemList; private GridView gridView; public MyExpandableListViewAdapter(Context context, List<String> groupList, List<List<String>> itemList) { mContext = context; this.groupList = groupList; this.itemList = itemList; } @Override public int getGroupCount() { return groupList.size(); } @Override public int getChildrenCount(int groupPosition) { return 1; } @Override public Object getGroup(int groupPosition) { return groupList.get(groupPosition); } @Override public Object getChild(int groupPosition, int childPosition) { return itemList.get(groupPosition).get(childPosition); } @Override public long getGroupId(int groupPosition) { return groupPosition; } @Override public long getChildId(int groupPosition, int childPosition) { return childPosition; } @Override public boolean hasStableIds() { return false; } @Override public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) { if (null == convertView) { convertView = View.inflate(mContext, R.layout.expandablelist_group, null); } ImageView ivGroup = (ImageView) convertView.findViewById(R.id.iv_group); TextView tvGroup = (TextView) convertView.findViewById(R.id.tv_group); // 如果是展开状态，就显示展开的箭头，否则，显示折叠的箭头 if (isExpanded) { ivGroup.setImageResource(R.drawable.ic_open); } else { ivGroup.setImageResource(R.drawable.ic_close); } // 设置分组组名 tvGroup.setText(groupList.get(groupPosition)); return convertView; } @Override public View getChildView(final int groupPosition, final int childPosition, boolean isLastChild, View convertView, ViewGroup parent) { if (null == convertView) { convertView = View.inflate(mContext, R.layout.expandablelist_item, null); } // 因为 convertView 的布局就是一个 GridView， // 所以可以向下转型为 GridView gridView = (GridView) convertView; // 创建 GridView 适配器 MyGridViewAdapter gridViewAdapter = new MyGridViewAdapter(mContext, itemList.get (groupPosition)); gridView.setAdapter(gridViewAdapter); gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { Toast.makeText(mContext, "点击了第" + (groupPosition + 1) + "组，第" + (position + 1) + "项", Toast.LENGTH_SHORT).show(); } }); return convertView; } @Override public boolean isChildSelectable(int groupPosition, int childPosition) { return false; } }