public class MainActivity extends Activity {

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        ExpandableListView s = ((ExpandableListView) findViewById(R.id.expandableListView1));

        eda adapter = new eda(this);

        s.setAdapter(adapter);

    }

    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        getMenuInflater().inflate(R.menu.activity_main, menu);

        return true;

    }

}

public class eda extends BaseExpandableListAdapter {

    private Context cxt;

    int[] logos = new int[] { R.drawable.z1, R.drawable.z2, R.drawable.z4 };

    String[] gt = new String[] { "组1", "组2", "组3" };

    String[][] arms = new String[][] { { "狂战士", "雨雪卖身", "asdas" },

            { "高于掐", "神奇的猴子", "不神奇啊" }, { "天才的啥", "士大夫", "q32" } };

    public eda(Context ctx) {

        // TODO Auto-generated constructor stub

        this.cxt = ctx;

    }

    public Object getChild(int groupPosition, int childPosition) {

        // TODO Auto-generated method stub

        return arms[groupPosition][childPosition];

    }

    public long getChildId(int arg0, int childPosition) {

        // TODO Auto-generated method stub

        return childPosition;

    }

    public View getChildView(int groupPosition, int childPosition,

            boolean isExpanded, View convertView, ViewGroup parent) {

        // TODO Auto-generated method stub

        TextView t = new TextView(cxt);

        t.setPadding(50, 0, 0, 0);

        t.setText(getChild(groupPosition, childPosition).toString());

        return t;

    }

    public int getChildrenCount(int groupPosition) {

        // TODO Auto-generated method stub

        return arms[groupPosition].length;

    }

    public Object getGroup(int groupPosition) {

        // TODO Auto-generated method stub

        return gt[groupPosition];

    }

    public int getGroupCount() {

        // TODO Auto-generated method stub

        return gt.length;

    }

    public long getGroupId(int groupPosition) {

        // TODO Auto-generated method stub

        return groupPosition;

    }

    public View getGroupView(int groupPosition, boolean isExpanded,

            View converView, ViewGroup parent) {

        // TODO Auto-generated method stub

        LinearLayout ll = new LinearLayout(cxt);

        ll.setOrientation(0);

        ImageView logo = new ImageView(cxt);

        logo.setImageResource(logos[groupPosition]);

        ll.addView(logo);

        TextView tt = new TextView(cxt);

        tt.setText(getGroup(groupPosition).toString());

        ll.addView(tt);

        return ll;

    }

    public boolean hasStableIds() {

        // TODO Auto-generated method stub

        return true;

    }

    public boolean isChildSelectable(int arg0, int arg1) {

        // TODO Auto-generated method stub

        return false;

    }

}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:id="@+id/LinearLayout1"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical" >

    <ExpandableListView

        android:id="@+id/expandableListView1"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:childIndicator="@drawable/z3" >

    </ExpandableListView>

</LinearLayout>