二级列表

package com.example.spandemo;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.view.ViewGroup;

import android.widget.BaseExpandableListAdapter;

import android.widget.ExpandableListView;

import android.widget.ExpandableListView.OnChildClickListener;

import android.widget.ExpandableListView.OnGroupExpandListener;

import android.widget.ImageView;

import android.widget.TextView;

import android.widget.Toast;

public class MainActivity extends Activity {

// 设置组视图的显示文字

private String[] groupTypes = new String[] { "魏", "蜀", "吴" };

// 子视图显示文字

private String[][] group = new String[][] {

{ "夏侯惇", "甄姬", "许褚", "郭嘉", "司马懿", "杨修" },

{ "马超", "张飞", "刘备", "诸葛亮", "黄月英", "赵云" },

{ "吕蒙", "陆逊", "孙权", "周瑜", "孙尚香" }

};

// 子视图图片

public int[][] groupLogo = new int[][] {

{ R.drawable.e, R.drawable.f, R.drawable.h, R.drawable.i,

R.drawable.g, R.drawable.k },

{ R.drawable.l, R.drawable.n, R.drawable.o, R.drawable.p,

R.drawable.f, R.drawable.h },

{ R.drawable.h, R.drawable.d, R.drawable.o, R.drawable.p,

R.drawable.f } };

int[] logos = new int[] { R.drawable.a, R.drawable.b, R.drawable.c };

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

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

expandableListView.setAdapter(new MyExpandleAdapter());

expandableListView

.setOnGroupExpandListener(new OnGroupExpandListener() {

@Override

public void onGroupExpand(int groupPosition) {

Toast.makeText(getApplicationContext(),

"第" + groupPosition + "组打开", 0).show();

}

});

expandableListView.setOnChildClickListener(new OnChildClickListener() {

@Override

public boolean onChildClick(ExpandableListView parent, View v,

int groupPosition, int childPosition, long id) {

Toast.makeText(getApplicationContext(),

group[groupPosition][childPosition], 0).show();

return true;

}

});

}

class MyExpandleAdapter extends BaseExpandableListAdapter {

// 组的数目

@Override

public int getGroupCount() {

return groupTypes.length;

}

@Override

public int getChildrenCount(int groupPosition) {

return group[groupPosition].length;

}

@Override

public Object getGroup(int groupPosition) {

return groupTypes[groupPosition];

}

@Override

public Object getChild(int groupPosition, int childPosition) {

return group[groupPosition][childPosition];

}

@Override

public long getGroupId(int groupPosition) {

return groupPosition;

}

@Override

public long getChildId(int groupPosition, int childPosition) {

return childPosition;

}

@Override

public boolean hasStableIds() {

return true;

}

@Override

public View getGroupView(int groupPosition, boolean isExpanded,

View convertView, ViewGroup parent) {

View group = View.inflate(getApplicationContext(), R.layout.group,

null);

ImageView iv_group = (ImageView) group.findViewById(R.id.iv_group);

TextView tv_group = (TextView) group.findViewById(R.id.tv_group);

iv_group.setImageResource(logos[groupPosition]);

tv_group.setText(groupTypes[groupPosition]);

return group;

}

@Override

public View getChildView(int groupPosition, int childPosition,

boolean isLastChild, View convertView, ViewGroup parent) {

View group_item = View.inflate(getApplicationContext(),

R.layout.group_item, null);

ImageView iv_group = (ImageView) group_item

.findViewById(R.id.iv_group);

TextView tv_group = (TextView) group_item

.findViewById(R.id.tv_group);

iv_group.setImageResource(groupLogo[groupPosition][childPosition]);

tv_group.setText(MainActivity.this.group[groupPosition][childPosition]);

return group_item;

}

@Override

public boolean isChildSelectable(int groupPosition, int childPosition) {

return true;

}

}

}