public class CustomExpandableListAdapter extends BaseExpandableListAdapter implements OnCheckedChangeListener {
private CoreWorkFlowActivity context;
private List<ActivationType> listDataHeader=new ArrayList<ActivationType>(); // header titles
// child data in format of header title, child title
ArrayList<Integer> arrIVRetest = new ArrayList<Integer>();
private HashMap<String, List<OrderLineItem>> listDataChild= new HashMap<String, List<OrderLineItem>>();
public static int count=0;
public static int countIVRetest=0;
public CustomExpandableListAdapter(CoreWorkFlowActivity context, ArrayList<ActivationType> listDataHeader,
HashMap<String, List<OrderLineItem>> listDataChild) {
this.context = context;
this.listDataHeader = listDataHeader;
this.listDataChild = listDataChild;
}
@Override
public Object getChild(int groupPosition, int childPosititon) {
return this.listDataChild.get(this.listDataHeader.get(groupPosition).getName())
.get(childPosititon).getProductName().getValue().toString();
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
ArrayList<Integer> arrActivation = new ArrayList<Integer>();
@Override
public View getChildView(final int groupPosition, final int childPosition,
boolean isLastChild, View convertView, ViewGroup parent)
{
//listDataHeader.clear();
//arrIVRetest.clear();
//listDataChild.clear();
final OrderLineItem childObj=this.listDataChild.get(this.listDataHeader.get(groupPosition).getName()).get(childPosition);
final String childText = (String) getChild(groupPosition, childPosition);
final String groupName=this.listDataHeader.get(groupPosition).getName();
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this.context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.olilist_expanded, null);
}
TextView txtListChild = (TextView) convertView
.findViewById(R.id.oliexpandedTextView);
txtListChild.setText(childText);
txtListChild.setTypeface(RobotoTypeface.sRobotoRegular(context));
TextView txtlistStatus=(TextView)convertView.findViewById(R.id.oliexpandedstatus);
txtlistStatus.setTypeface(RobotoTypeface.sRobotoItalic(context));
CheckBox cbChild=(CheckBox)convertView.findViewById(R.id.checkboxoli);
cbChild.setOnCheckedChangeListener(new OnCheckedChangeListener()
{
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
//IVRETEST
if(isChecked && groupName.equals(OLIConstants.IV_RETEST))
{
countIVRetest=countIVRetest+1;
arrIVRetest.add(childPosition);//adding oli which r checked
context.getSummaryFragment().getOli2(arrIVRetest,groupPosition);
if(!context.getSummaryFragment().ivretestAll.isEnabled())
{
context.getSummaryFragment().enableButtonIVRetest(true);
}
}
else if(!isChecked && groupName.equals(OLIConstants.IV_RETEST))
{
countIVRetest=countIVRetest-1;
Integer arrv = arrIVRetest.indexOf(childPosition);
arrIVRetest.remove(arrv);
context.getSummaryFragment().getOli2(arrIVRetest,groupPosition);
if(context.getSummaryFragment().ivretestAll.isEnabled() && countIVRetest<=0)
{
context.getSummaryFragment().enableButtonIVRetest(false);
}
}
//Activation
if(isChecked && groupName.equals(OLIConstants.FAILED_TO_ACTIVATE))
{
count=count+1;
arrActivation.add(childPosition);
context.getSummaryFragment().getOli(arrActivation,groupPosition);
if(!context.getSummaryFragment().activateSystem.isEnabled())
{
context.getSummaryFragment().enableButton(true);
}
}
else if(!isChecked && groupName.equals(OLIConstants.FAILED_TO_ACTIVATE))
{
count=count-1;
arrActivation.remove(arrActivation.indexOf(childPosition));
context.getSummaryFragment().getOli(arrActivation,groupPosition);
if(context.getSummaryFragment().activateSystem.isEnabled() && count<=0)
{
context.getSummaryFragment().enableButton(false);
}
}
}
});
ProgressBar pbchild=(ProgressBar)convertView.findViewById(R.id.progressBaroli);
ImageView backArrow=(ImageView)convertView.findViewById(R.id.backwardArrow);
if(groupName.equals(OLIConstants.READY_TO_ACTIVATE)||groupName.equals(OLIConstants.ACTIVATED_EQUIPMENT) || groupName.equals(OLIConstants.NO_ACTION)||groupName.equals(OLIConstants.COMPLETED_WORK_ITEMS)||groupName.equals(OLIConstants.PENDING_ITEMS))
{
backArrow.setVisibility(View.GONE);
}
else//added
{
backArrow.setVisibility(View.VISIBLE);
}
if(groupName.equals(OLIConstants.IV_RETEST))
{
txtlistStatus.setVisibility(View.VISIBLE);
txtlistStatus.setText(childObj.getStatus().getValue().toString());
}
else
{
txtlistStatus.setVisibility(View.GONE);
}
//
if(!childObj.isSelectable())
{
cbChild.setVisibility(View.GONE);
pbchild.setVisibility(View.GONE);
}
else if(childObj.isSelectable() == true && (groupName.equals(OLIConstants.FAILED_TO_ACTIVATE)||groupName.equals(OLIConstants.IV_RETEST)) )
{
cbChild.setVisibility(View.VISIBLE);
//childObj.setSelectable(false);
if(groupName.equals(OLIConstants.IV_RETEST))
{
if(childObj.isChecked()==true)//giving this only for ivretest
{
if(childObj.getStatus().getValue().toString().equalsIgnoreCase("Open") && childObj.getTechAction().getValue().toString().equalsIgnoreCase("IV Retest"))
{
cbChild.setChecked(true);
childObj.setChecked(false);//for making it not to select again
}
else{
cbChild.setChecked(false);
}
if(countIVRetest>0)
{context.getSummaryFragment().ivretestAll.setEnabled(true);}
}
else{
cbChild.setChecked(false);
}
}
/*else{
cbChild.setChecked(false);
}*/
}
//***************************************************************************************
/*else if(childObj.isSelectable() == true && groupName.equals(OLIConstants.FAILED_TO_ACTIVATE))
{
cbChild.setVisibility(View.VISIBLE);
childObj.setChecked(false);
}
else if(childObj.isSelectable() == true && groupName.equals(OLIConstants.IV_RETEST) )
{
cbChild.setVisibility(View.VISIBLE);
if(groupName.equals(OLIConstants.IV_RETEST))
{
if(childObj.isChecked()==true)//giving this only for ivretest
{
if(childObj.getStatus().getValue().toString().equalsIgnoreCase("Open") && childObj.getTechAction().getValue().toString().equalsIgnoreCase("IV Retest"))
{
cbChild.setChecked(true);
childObj.setChecked(false);//for making it not to select again
}
else{
cbChild.setChecked(false);
}
if(countIVRetest>0)
{context.getSummaryFragment().ivretestAll.setEnabled(true);}
}
else{
cbChild.setChecked(false);
}
}
}*/
//********************************************************************************
return convertView;
}
@Override
public int getChildrenCount(int groupPosition) {
return this.listDataChild.get(this.listDataHeader.get(groupPosition).getName())
.size();
}
@Override
public Object getGroup(int groupPosition) {
return this.listDataHeader.get(groupPosition);
}
@Override
public int getGroupCount() {
return this.listDataHeader.size();
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
ActivationType headerTitleValues = (ActivationType) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this.context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.summarylist_layout, null);
}
TextView lblListHeader = (TextView) convertView
.findViewById(R.id.summary_text);
lblListHeader.setTypeface(RobotoTypeface.sRobotoBold(context));
lblListHeader.setText(headerTitleValues.getName());
lblListHeader.setTextColor(Color.parseColor(headerTitleValues.getColor()));
ImageView lblimage=(ImageView)convertView.findViewById(R.id.summarylist_color);
lblimage.setBackgroundColor(Color.parseColor(headerTitleValues.getColor()));
ImageView arrowImg=(ImageView)convertView.findViewById(R.id.arrowImg);
if(isExpanded)
{
arrowImg.setBackgroundResource(R.drawable.up_arrow);
}
else
{
arrowImg.setBackgroundResource(R.drawable.down_arrow);
}
return convertView;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
// TODO Auto-generated method stub
}
}
我遇到了问题。当我检查子列表中的复选框并向上和向下滚动时，另一个孩子中的复选框会被随机选中并取消选中。 我无法确定问题所在 请帮忙
答案 0 :(得分：0)
我没有完成上述所有代码，但我认为列表视图单元的重用存在问题。我有同样的问题。尝试使用持有者模式来存储有关每个单元格的信息。 在我看来，本教程非常好 http://www.vogella.com/tutorials/AndroidListView/article.html#adapterperformance_holder
答案 1 :(得分：0)
您应该在collections数组中维护状态（Checked / Unchecked）。由于Adapters的概念是重用视图，因此只要您滚动列表，它就会重复使用屏幕外的先前视图。
因此，您应该使用唯一变量位置维护一个Array来存储check / uncheck状态。使用此数组可以恢复getView方法中的先前状态。