@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);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
menu.add(0, MENU_EDITOR, 0, "编辑");
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case MENU_EDITOR:
setCheckBoxVisible(View.VISIBLE);
adapter.notifyDataSetChanged();
break;
default:
break;
}
return super.onOptionsItemSelected(item);
}
@Override
public 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<Group> groupList;
private Map<Integer, Boolean> selectedMap;//保存checkbox是否被选中的状态
private Map<Integer, Integer> visibleMap ;
public GroupListAdapter(Context context, List<Group> groupList) {
this.context = context;
this.groupList = groupList;
selectedMap = new HashMap<Integer, Boolean>();
visibleMap = new HashMap<Integer, Integer>();
for (Group group : groupList) {
selectedMap.put(group.id, false);
visibleMap.put(group.id, View.GONE);
}
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return groupList.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public 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"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="fill_parent" android:orientation="vertical"> <LinearLayout android:layout_height="0dip" android:layout_width="match_parent" android:layout_weight="1"> <ListView android:id="@+id/groupListView" android:layout_width="match_parent" android:layout_height="match_parent" android:divider="#999999" android:dividerHeight="1sp" /> </LinearLayout> <LinearLayout android:id="@+id/bottomBar" android:layout_height="wrap_content" android:layout_width="match_parent" android:gravity="center_horizontal" android:padding="5dip" android:background="@drawable/buttonbar" android:visibility="gone"> <Button android:id="@+id/add2ScanListBtn" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/add2ScanList"/> <Button android:id="@+id/checkBtn" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/checkAll" /> <Button android:id="@+id/closeCheckBtn" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/cancel" /> </LinearLayout> </LinearLayout>
group_list2_item.xml
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" > <TextView android:id="@+id/groupNameTV" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="20dip" android:layout_alignParentLeft="true" android:textColor="@android:color/white" android:layout_marginTop="12dip" android:layout_marginLeft="5dip" android:paddingBottom="12dip" /> <CheckBox android:id="@+id/checkBox" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_marginRight="5dip" android:clickable="false" android:focusable="false" android:focusableInTouchMode="false" /> </RelativeLayout>
