我正在尝试在扩展列表视图中（在组视图和子视图中）中执行复选框。但我不理解这个概念。所以伙计们，如果你有任何想法，请与我分享。这是我第一次在这个概念（可扩展列表视图）中工作。
组视图中的复选框（复选框复选框组）
- 如果我选中组视图（组位置 0）中的复选框，则必须选中子项（子位置 0）中的所有项目。
- 就像我取消选中组视图（组位置 0）子项（子位置 0）中的所有项目都必须取消选中一样。
视图中的复选框（复选框复选框子项;）
- 只是复选框中的多项选择。
感谢您的帮助。
这是我下面的代码
public class DetailAdapter extends BaseExpandableListAdapter {
private LayoutInflater mInflater;
private ArrayList<PatientSampleDetails> sampleArray;
private ArrayList<lstServiceOrderDetails> serviceLst;
private Activity activity;
ArrayAdapter<String> adapter;
View row;
public LayoutInflater minflater;
Context mContext;
int chldPosition;
// ServiceOrderList elementChild
PatientSampleDetails elementChild;
public static HashMap<Integer,Boolean> selectedGroupMembers = new HashMap<Integer, Boolean>();
private static View container ;
ActionItem nextItem;
int posi;
lstServiceOrderDetails child;
View rowView;
static class ViewHolder {
private CheckBox checkBoxChild;
public CheckBox checkBoxGroup;
public Button button;
public TextView service;
}
public WorkDetailAdapter(Activity activity, ArrayList<PatientSampleDetails> sampleArray) {
this.sampleArray = sampleArray;
this.activity = activity;
mInflater = LayoutInflater.from(activity);
}
public void setInflater(LayoutInflater mInflater) {
this.minflater = mInflater;
}
public Object getChild(int groupPosition, int childPosition) {
return sampleArray.get(groupPosition).lstServiceOrderDetails.get(childPosition);
}
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
public View getChildView(final int groupPosition, final int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
Log.i("getChildView-getChild", groupPosition + "/" + childPosition);
child = (lstServiceOrderDetails) getChild(groupPosition, childPosition);
Log.i("child", "child data"+ child.getServiceName());
rowView = convertView;
final ViewHolder holder = new ViewHolder();
if (convertView == null) {
convertView = mInflater.inflate(R.layout.detaillistrowview, null);
holder.serviceText = (TextView) convertView.findViewById(R.id.sevice);
holder.checkBoxChild = (CheckBox)convertView.findViewById(R.id.checkBox);
holder.checkBoxChild.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (isChecked) {
elementChild = (PatientSampleDetails) holder.checkBoxChild.getTag();
elementChild.setSelected(buttonView.isChecked());
Log.i("buttonView-checkBox", "getChildId :" + getChildId(groupPosition, childPosition));
Log.i("status", ""+ elementChild.isSelected());
} else {
elementChild.setSelected(false);
}
}
});
if (selectedGroupMembers.containsKey(groupPosition) == true){
holder.checkBoxChild.setActivated(true);
Log.i("true", "true");
holder.checkBoxChild.setSelectAllOnFocus(true);
} else {
holder.checkBoxChild.setActivated(false);
Log.i("false", "false");
holder.checkBoxChild.setSelectAllOnFocus(true);
}
convertView.setTag(holder);
holder.checkBoxChild.setTag(sampleArray.get(groupPosition));
holder.serviceText.setText(Util.formatN2H(child.getServiceName()));
Log.i("child", "child data ---> "+ child.getServiceName() +"/"+child.getServiceName());
//Now write here code for set colors for rows
/* if(childPosition % 2 == 0) {
convertView.setBackgroundColor(Color.parseColor("#E7E8E8"));
} else {
convertView.setBackgroundColor(Color.parseColor("#C9CACC"));
}*/
// To change the color of the Listview row.
// / convertView.setBackgroundColor((childPosition & 1) == 1 ? Color.parseColor("#E7E8E8") : Color.parseColor("#C9CACC"));
return convertView;
}
public int getChildrenCount(int groupPosition) {
serviceLst = sampleArray.get(groupPosition).getServiceOrderList();
return serviceLst.size();
}
public Object getGroup(int groupPosition) {
return sampleArray.get(groupPosition);
}
public int getGroupCount() {
return sampleArray.size();
}
public long getGroupId(int groupPosition) {
return groupPosition;
}
public View getGroupView(final int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
final ViewHolder holder = new ViewHolder();
PatientSampleDetails group = (PatientSampleDetails) getGroup(groupPosition);
if (convertView == null) {
convertView = mInflater.inflate(R.layout.getgroupviewdetail, null);
convertView.setId(groupPosition);
holder.checkBoxGroup = (CheckBox) convertView.findViewById(R.id.checkBoxGroup);
holder.checkBoxGroup.setFocusable(false);
holder.checkBoxGroup.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
PatientSampleDetails elementGroup ;
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (isChecked == true) {
selectedGroupMembers.put(groupPosition, Boolean.valueOf(true)); //new Boolean(true));
elementGroup = (PatientSampleDetails) holder.checkBoxGroup.getTag();
elementGroup.setSelected(buttonView.isChecked());
Log.i("Clicked : ", "group" + groupPosition);
Log.i("buttonView", "getItemId :" + getGroupId(groupPosition));
Log.i("status", ""+ elementGroup.isSelected());
Log.i("buttonView", "chldPosition :" + getChildId(groupPosition, chldPosition));
notifyDataSetChanged();
} else if (selectedGroupMembers.containsKey(groupPosition)) {
selectedGroupMembers.remove(groupPosition);
elementGroup.setSelected(false);
Log.i(" Removed : ", "group" + groupPosition);
notifyDataSetChanged();
}
}
});
convertView.setTag(holder);
holder.checkBoxGroup.setTag(sampleArray.get(groupPosition));
} else {
((ViewHolder) convertView.getTag()).checkBoxGroup.setTag(sampleArray.get(groupPosition));
}
return convertView;
}
public boolean hasStableIds() {
return false;
}
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
试试这个，Adapter滚动列表时每分钟刷新一次。您必须为每个项目设置标签，否则您将获得标签值
if (convertView == null) {
//Add ur code
convertView.setTag(holder);
}else{
holder = (ViewHolder) convertView.getTag();
}
它将识别您ListView中的独特价值。
-
在应用程序上下文上获取 arraylist 以保存状态，该状态将是用于保存列表的当前状态。首次从中获取数据网络服务或任何地方并填充它。
-
将此数组列表传递给要填充列表的适配器。
-
在组视图上更改复选框 更新该列表。 并调用通知数据集已更改。