android ListView中Checkbox实现单选，全选，全不选功能

 @Override protected void onCreate(Bundle savedInstanceState) {  // TODO Auto-generated method stub  super.onCreate(savedInstanceState);  setContentView(R.layout.group_list2);    initBottomBar();    listView = (ListView) findViewById(R.id.groupListView);    GroupService service = new GroupService(this);  groupList = service.getGroupList(null);  adapter = new GroupListAdapter(this, groupList);  listView.setAdapter(adapter);    listView.setOnItemClickListener(new OnItemClickListener() {   @Override   public void onItemClick(AdapterView<?> adapterView, View view, int position,     long arg3) {    // TODO Auto-generated method stub    Group group = groupList.get(position);    CheckBox ctb = (CheckBox) view.findViewById(R.id.checkBox);    ctb.toggle();    adapter.selectedMap.put(group.id, ctb.isChecked());    adapter.notifyDataSetChanged();    if(adapter.selectedMap.containsValue(true)){     add2ScanListBtn.setEnabled(true);    }else{     add2ScanListBtn.setEnabled(false);    }   }  });   }  private  void initBottomBar(){  bottomBarView = (LinearLayout) findViewById(R.id.bottomBar);  add2ScanListBtn = (Button) bottomBarView.findViewById(R.id.add2ScanListBtn);  add2ScanListBtn.setEnabled(false);  checkBtn = (Button) bottomBarView.findViewById(R.id.checkBtn);  closeCheckBtn = (Button) bottomBarView.findViewById(R.id.closeCheckBtn);    add2ScanListBtn.setOnClickListener(this);  checkBtn.setOnClickListener(this);  closeCheckBtn.setOnClickListener(this); }

@Overridepublic boolean onCreateOptionsMenu(Menu menu) {menu.add(0, MENU_EDITOR, 0, "编辑");return super.onCreateOptionsMenu(menu);}@Overridepublic boolean onOptionsItemSelected(MenuItem item) {switch (item.getItemId()) {case MENU_EDITOR:setCheckBoxVisible(View.VISIBLE);adapter.notifyDataSetChanged();break;default:break;}return super.onOptionsItemSelected(item);}@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.add2ScanListBtn:GroupService service = new GroupService(this);service.add2ScanList(adapter.selectedMap);for (Group group : groupList) {adapter.selectedMap.put(group.id, false);}setCheckBoxVisible(View.GONE);adapter.notifyDataSetChanged();break;case R.id.checkBtn:CharSequence text = checkBtn.getText();if (getText(R.string.checkAll).equals(text)) {for (int i = 0; i < adapter.getCount(); i++) {Group group = groupList.get(i);adapter.selectedMap.put(group.id, true);}checkBtn.setText(getText(R.string.checkNeither));add2ScanListBtn.setEnabled(true);}else if(getText(R.string.checkNeither).equals(text)){for (int i = 0; i < adapter.getCount(); i++) {Group group = groupList.get(i);adapter.selectedMap.put(group.id, false);}checkBtn.setText(getText(R.string.checkAll));add2ScanListBtn.setEnabled(false);}adapter.notifyDataSetChanged();break;case R.id.closeCheckBtn:setCheckBoxVisible(View.GONE);adapter.notifyDataSetChanged();break;default:break;}}

//设置checkbox是否可见private void setCheckBoxVisible(int state){bottomBarView.setVisibility(state);for (int i = 0; i < adapter.getCount(); i++) {Group group = groupList.get(i);adapter.visibleMap.put(group.id, state);}}

class GroupListAdapter extends BaseAdapter{private Context context;private List groupList;private Map selectedMap;//保存checkbox是否被选中的状态private Map visibleMap ;public GroupListAdapter(Context context, List groupList) {this.context = context;this.groupList = groupList;selectedMap = new HashMap();visibleMap = new HashMap();for (Group group : groupList) {selectedMap.put(group.id, false);visibleMap.put(group.id, View.GONE);}}@Overridepublic int getCount() {// TODO Auto-generated method stubreturn groupList.size();}@Overridepublic Object getItem(int position) {// TODO Auto-generated method stubreturn position;}@Overridepublic long getItemId(int position) {// TODO Auto-generated method stubreturn position;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {final ViewHolder holder;if (convertView == null) {holder = new ViewHolder();convertView = LayoutInflater.from(context).inflate(R.layout.group_list2_item, null);holder.groupNameCTV = (TextView) convertView.findViewById(R.id.groupNameTV);holder.checkBox = (CheckBox) convertView.findViewById(R.id.checkBox);convertView.setTag(holder);} else {holder = (ViewHolder) convertView.getTag();}Group group = groupList.get(position);holder.groupNameCTV.setText(group.m_strGroupName);holder.checkBox.setVisibility(visibleMap.get(group.id));holder.checkBox.setChecked(selectedMap.get(group.id));return convertView;}private class ViewHolder{TextView groupNameCTV;CheckBox checkBox;}}

group_list2.xml

<?xml version="1.0" encoding="utf-8"?>

group_list2_item.xml

<?xml version="1.0" encoding="utf-8"?>

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