ExpandableListView的使用

效果图

布局

<ExpandableListView
    android:id="@+id/expandableListView"android:layout_width="match_parent"android:layout_height="match_parent" />

初始化

ExpandableListView expandableListView = (ExpandableListView) findViewById(R.id.expandableListView);

填充数据

KongqwExpandableListviewAdapter kongqwExpandableListviewAdapter = new KongqwExpandableListviewAdapter(this);
expandableListView.setAdapter(kongqwExpandableListviewAdapter);

Adapter

package com.example.kongqw.myapplication;import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.TextView;import java.util.ArrayList;/*** Created by kongqw on 2015/12/21.*/
public class KongqwExpandableListviewAdapter extends BaseExpandableListAdapter {private Context mContext;private ArrayList<String> mGroups;private ArrayList<String> mChilds;// 构造方法public KongqwExpandableListviewAdapter(Context context) {mContext = context;// 模拟初始化数据mGroups = new ArrayList<String>();mGroups.add("Group 1");mGroups.add("Group 2");mGroups.add("Group 3");mGroups.add("Group 4");mGroups.add("Group 5");mChilds = new ArrayList<String>();mChilds.add("Child 1");mChilds.add("Child 2");mChilds.add("Child 3");mChilds.add("Child 4");mChilds.add("Child 5");mChilds.add("Child 6");mChilds.add("Child 7");mChilds.add("Child 8");mChilds.add("Child 9");mChilds.add("Child 10");}@Overridepublic int getGroupCount() {return mGroups.size();}@Overridepublic int getChildrenCount(int groupPosition) {return mChilds.size();}@Overridepublic Object getGroup(int groupPosition) {return mGroups.get(groupPosition);}@Overridepublic Object getChild(int groupPosition, int childPosition) {return mChilds.get(childPosition);}@Overridepublic long getGroupId(int groupPosition) {return groupPosition;}@Overridepublic long getChildId(int groupPosition, int childPosition) {return childPosition;}@Overridepublic View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {View view = View.inflate(mContext, R.layout.expandable_group_item, null);TextView textView = (TextView) view.findViewById(R.id.group_item);textView.setText(mGroups.get(groupPosition));return view;}@Overridepublic View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {View view = View.inflate(mContext, R.layout.expandable_child_item, null);TextView textView = (TextView) view.findViewById(R.id.child_item);textView.setText(mChilds.get(childPosition));return view;}@Overridepublic boolean hasStableIds() {return true;}@Overridepublic boolean isChildSelectable(int groupPosition, int childPosition) {return true;}
}

去掉箭头

expandableListView.setGroupIndicator(null);

默认展开

// 设置ExpandableListView默认是展开的
for (int i = 0; i < kongqwExpandableListviewAdapter.getGroupCount(); i++) {expandableListView.expandGroup(i);
}

Group不可点击

expandableListView.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() {@Overridepublic boolean onGroupClick(ExpandableListView parent, View v, int groupPosition, long id) {// TODO Auto-generated method stubreturn true;}
});

TODO 复用