kfmes 님 감사합니다! 그런데 아무리 해봐도 잘 되지가 않네요;;ㅠㅠㅠㅠ

밑에 코드가 xml을 제외한 모든 코드입니다. 혹시라도 보시고 잘못된 부분 있으면 지적 부탁드리겠습니다 ㅠ

public class ZzzExpanTestActivity extends Activity {

private ArrayList<String> groups;

private ArrayList<ArrayList<ArrayList<String>>> childs;

ImageButton HomeBtn, AddBtn;

myExpandableAdapter adapter;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

Window win = getWindow();

win.requestFeature(Window.FEATURE_NO_TITLE);

setContentView(R.layout.main);

final ExpandableListView l = (ExpandableListView) findViewById(R.id.ExpandableListView01);

groups = new ArrayList<String>();

//childs = new ArrayList<ArrayList<ArrayList<String>>>();

//loadData();

adapter = new myExpandableAdapter(this, groups, childs);

l.setAdapter(adapter);

l.setOnGroupClickListener(new OnGroupClickListener() {

public boolean onGroupClick(ExpandableListView parent, View v,

final int groupPosition, long id) {

return false;

}

});

l.setOnChildClickListener(new OnChildClickListener() {

public boolean onChildClick(ExpandableListView parent, View v,

final int groupPosition, final int childPosition, long id) {

AlertDialog.Builder builder = new AlertDialog.Builder(

ZzzExpanTestActivity.this);

builder.setTitle("세부 항목 삭제")

.setPositiveButton("삭제",

new DialogInterface.OnClickListener() {

public void onClick(DialogInterface dialog,

int whichButton) {

childs.remove(adapter.getChild(groupPosition, childPosition));

adapter.notifyDataSetChanged();

}

}).setNegativeButton("취소", null).show();

return false;

}

});

}

public class myExpandableAdapter extends BaseExpandableListAdapter {

private ArrayList<String> groups;

private ArrayList<ArrayList<ArrayList<String>>> children;

private Context context;

public myExpandableAdapter(Context context, ArrayList<String> groups,

ArrayList<ArrayList<ArrayList<String>>> children) {

this.context = context;

this.groups = groups;

this.children = childs;

}

@Override

public boolean areAllItemsEnabled() {

return true;

}

@Override

public ArrayList<String> getChild(int groupPosition, int childPosition) {

return children.get(groupPosition).get(childPosition);

}

@Override

public long getChildId(int groupPosition, int childPosition) {

return childPosition;

}

@Override

public View getChildView(int groupPosition, int childPosition,

boolean isLastChild, View convertView, ViewGroup parent) {

String child = (String) ((ArrayList<String>) getChild(

groupPosition, childPosition)).get(0);

if (convertView == null) {

LayoutInflater infalInflater = (LayoutInflater) context

.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

convertView = infalInflater.inflate(

R.layout.expandablelistview_child, null);

}

TextView childtxt = (TextView) convertView

.findViewById(R.id.TextViewChild01);

childtxt.setText(child);

return convertView;

}

@Override

public int getChildrenCount(int groupPosition) {

if(children.get(groupPosition).equals(null))

return 0;

else

return children.get(groupPosition).size();

}

@Override

public String getGroup(int groupPosition) {

return groups.get(groupPosition);

}

@Override

public int getGroupCount() {

if (groups.equals(null)) {

return 0;

}

else

return groups.size();

}

@Override

public long getGroupId(int groupPosition) {

return groupPosition;

}

@Override

public View getGroupView(int groupPosition, boolean isExpanded,

View convertView, ViewGroup parent) {

String group = (String) getGroup(groupPosition);

if (convertView == null) {

LayoutInflater infalInflater = (LayoutInflater) context

.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

convertView = infalInflater.inflate(

R.layout.expandablelistview_group, null);

}

TextView grouptxt = (TextView) convertView

.findViewById(R.id.TextViewGroup);

grouptxt.setText(group);

return convertView;

}

@Override

public boolean hasStableIds() {

return true;

}

@Override

public boolean isChildSelectable(int arg0, int arg1) {

return true;

}

}

private void loadData() {

groups.add("Group 1");

groups.add("Group 2");

groups.add("Group 3");

childs.add(new ArrayList<ArrayList<String>>());

childs.get(0).add(new ArrayList<String>());

childs.get(0).get(0).add("Child 1 group 1");

childs.get(0).add(new ArrayList<String>());

childs.get(0).get(1).add("Child 2 group 1");

childs.get(0).add(new ArrayList<String>());

childs.get(0).get(2).add("Child 3 group 1");

childs.add(new ArrayList<ArrayList<String>>());

childs.get(1).add(new ArrayList<String>());

childs.get(1).get(0).add("Child 1 group 2");

childs.get(1).add(new ArrayList<String>());

childs.get(1).get(1).add("Child 2 group 2");

childs.get(1).add(new ArrayList<String>());

childs.get(1).get(2).add("Child 3 group 2");

childs.add(new ArrayList<ArrayList<String>>());

childs.get(2).add(new ArrayList<String>());

childs.get(2).get(0).add("Child 1 group 3");

childs.get(2).add(new ArrayList<String>());

childs.get(2).get(1).add("Child 2 group 3");

childs.get(2).add(new ArrayList<String>());

childs.get(2).get(2).add("Child 3 group 3");

}

public void AddClick(View v) {

switch (v.getId()) {

case R.id.CheckListAddBtn:

LayoutInflater inf1 = (LayoutInflater) getApplicationContext()

.getSystemService(LAYOUT_INFLATER_SERVICE);

View layout = inf1.inflate(R.layout.addfolder, null);

AlertDialog.Builder builder = new AlertDialog.Builder(

ZzzExpanTestActivity.this);

builder.setView(layout)

.setTitle("폴더 추가")

.setPositiveButton("추가",

new DialogInterface.OnClickListener() {

public void onClick(DialogInterface dialog,

int whichButton) {

EditText edit = ((EditText) ((AlertDialog) dialog)

.findViewById(R.id.addFolder));

String addFolder = edit.getText()

.toString();

if (edit.getText().toString().length() != 0) {

groups.add(addFolder);

adapter.notifyDataSetChanged();

}

}

}).setNegativeButton("취소", null).show();

break;

case R.id.AlarmHome:

startActivity(new Intent(ZzzExpanTestActivity.this, test.class));

break;

}

}

}