自定义带CheckBox的ExpandableListView

package com.wm.example; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import android.app.Activity; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.ExpandableListView; import android.widget.ExpandableListView.OnChildClickListener; import android.widget.ExpandableListView.OnGroupClickListener; public class ExpandableListViewCheckbox extends Activity implements OnClickListener{ private static final String TAG="ExpandableListViewCheckboxActivity"; private Button mBtn; private ExpandableListView mListView; private ExpandableListViewAdapter mListViewAdapter = null; private List<String> mGroupData = new ArrayList<String>(); private List<HashMap<Integer,String>> mChildData= new ArrayList<HashMap<Integer,String>>(); //control select button status(SelectedAll or UnselectAll) private Boolean mAllSelected = false; private List<HashMap<Integer,Boolean>> mCheckedObj = new ArrayList<HashMap<Integer,Boolean>>(); private int mAllSelectedSize = 0; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mBtn=(Button) findViewById(R.id.select_btn); mBtn.setOnClickListener(this); mListView = (ExpandableListView) findViewById(R.id.expandableListView); mListView.setGroupIndicator(null); InitData(); mListView.setOnGroupClickListener(new OnGroupClickListener(){ @Override public boolean onGroupClick(ExpandableListView parent, View v, int groupPosition, long id) { // TODO Auto-generated method stub return false; } }); mListView.setOnChildClickListener(new OnChildClickListener() { @Override public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) { // TODO Auto-generated method stub //Log.w(TAG,"********onChildClick*********"); mListViewAdapter.setItemCheckBoxStatus(v, groupPosition,childPosition); if(mCheckedObj.get(groupPosition).containsKey(childPosition)){ // Log.w(TAG,"****onItemClick***NEED REMOVE***"); mCheckedObj.get(groupPosition).remove(childPosition); } else{ // Log.w(TAG,"****onItemClick***NEED put***"); mCheckedObj.get(groupPosition).put(childPosition, true); } if(getCheckedObjSize() == 0){ // Log.w(TAG,"****onItemClick**NO CHECKED***"); mAllSelected = false; mBtn.setText("SelectAll"); } else if(getCheckedObjSize() == mAllSelectedSize){ mAllSelected = true; mBtn.setText("UnselectAll"); } return false; } }); mListViewAdapter = new ExpandableListViewAdapter(getLayoutInflater(),this,mGroupData,mChildData); mListView.setAdapter(mListViewAdapter); } private HashMap<Integer,String> setHashMap(int size,String mstring){ HashMap<Integer,String> temp = new HashMap<Integer,String>(); for(int i=0;i< size; ++i){ temp.put(i, mstring+i); } return temp; } private void InitData(){ mGroupData.add("aaa"); mChildData.add(setHashMap(2,"a")); mGroupData.add("bbb"); mChildData.add(setHashMap(4,"b")); mGroupData.add("ccc"); mChildData.add(setHashMap(3,"c")); mGroupData.add("ddd"); mChildData.add(setHashMap(1,"d")); mGroupData.add("eee"); mChildData.add(setHashMap(2,"e")); mGroupData.add("fff"); mChildData.add(setHashMap(5,"f")); mGroupData.add("ggg"); mChildData.add(setHashMap(1,"g")); for(int groupId = 0; groupId < mGroupData.size();++groupId){ HashMap<Integer,Boolean> temp = new HashMap<Integer,Boolean>(); for(int childId = 0; childId < mChildData.get(groupId).size();++childId){ mAllSelectedSize++; } mCheckedObj.add(temp); } } private int getCheckedObjSize(){ int size =0; for(int groupId = 0; groupId < mGroupData.size();++groupId){ size += mCheckedObj.get(groupId).size(); } return size; } @Override public void onClick(View v) { // TODO Auto-generated method stub switch(v.getId()){ case R.id.select_btn:{ if(mAllSelected){ mAllSelected = false; mBtn.setText("SelectAll"); mListViewAdapter.setAllCheckBoxStatus(false); for(int groupId = 0; groupId < mGroupData.size();++groupId){ mCheckedObj.get(groupId).clear(); } } else{ mAllSelected = true; mBtn.setText("UnselectAll"); mListViewAdapter.setAllCheckBoxStatus(true); for(int groupId = 0; groupId < mGroupData.size();++groupId){ for(int childId = 0; childId < mChildData.get(groupId).size();++childId){ mCheckedObj.get(groupId).put(childId, true); } } } //Refresh data mListViewAdapter.notifyDataSetChanged(); } break; default:break; } } }