public class CheckBoxinListViewActivity extends Activity {
/** Called when the activity is first created. */
private MyAdapter adapter;
private ListView listview;
private Button checkAll;
private Button noCheckAll;
@Override
public void onCreate(Bundle savedInstanceState) {
(savedInstanceState);
setContentView();
listview = (ListView)findViewById();
checkAll = (Button)findViewById(.button1);
noCheckAll = (Button)findViewById(.button2);
adapter = new MyAdapter();
(adapter);
(new OnClickListener() {
@Override
public void onClick(View v) {
();
}
});
(new OnClickListener() {
@Override
public void onClick(View v) {
();
}
});
}
private class MyAdapter extends BaseAdapter{
private ArrayList<Message> list= new ArrayList<Message>();
public MyAdapter(){
for(int i = 1 ;i<=100 ; i++){
(new Message("item_"+i));
}
}
public void checkAll(){
for(Message msg:list){
= true;
}
notifyDataSetChanged();
}
public void noCheckAll(){
for(Message msg:list){
= false;
}
notifyDataSetChanged();
}
@Override
public int getCount() {
return ();
}
@Override
public Object getItem(int position) {
return null;
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder viewHolder;
if(convertView == null){
LayoutInflater inflater = ();
convertView = (.listview_item, null);
viewHolder = new ViewHolder();
= (CheckBox)(.checkBox1);
(viewHolder);
}else{
viewHolder = (ViewHolder)();
}
final Message msg = (position);
();
();
//Note that the setting here is not onCheckedChangListener, it is still worth thinking about.
(new OnClickListener() {
@Override
public void onClick(View v) {
if(){
= false;
}else{
= true;
}
}
});
return convertView;
}
}
private class ViewHolder{
CheckBox checkBox;
}
}