Question

我有一个复选框项P50_SELECT。如何在PL / SQL中获取P50_SELECT的已检查值列表？

Answer 1

您可以在下面使用，var将包含选中的值。项目本身存储值，而不是所有选项。这不是一个列表，它将是逗号或冒号分隔的字符串。

public class NavDrawerExpandableListAdapter extends BaseExpandableListAdapter {

private static final int CHILD_HEADER = 0;
private static final int CHILD_LINE_ITEM = 1;

private Context context;
private List<String> expandableListTitle;
private HashMap<String, List<String>> expandableListDetail;

private final Set<Pair<Long, Long>> mToggleSwitchedItems = new HashSet<Pair<Long, Long>>();

public NavDrawerExpandableListAdapter(Context context, List<String> expandableListTitle,
                                      HashMap<String, List<String>> expandableListDetail) {
    this.context = context;
    this.expandableListTitle = expandableListTitle;
    this.expandableListDetail = expandableListDetail;
}

//set the toggle switch state of the child header so we can access it in other layouts
private void setChildToggleCheckedState(boolean state) {
    this.childToggleHeaderState = state;
}

//get the toggle switch state of the child header toggle so we can access it in other layouts
public boolean getChildToggleCheckedState() {
    return childToggleHeaderState;
}

//view holder class to store our textView
private class ViewHolder {
    TextView textView;
    Switch childHeaderToggle;
}

//number of different types of views we're gonna inflate for the children
@Override
public int getChildTypeCount () {
    return 2;
}

//specify which viewType to inflate in the getView method
@Override
public int getChildType (int groupPosition, int childPosition) {
    switch(childPosition) {
        case 0:
            return CHILD_HEADER;
        default:
            return CHILD_LINE_ITEM;
    }
}

@Override
public Object getChild(int groupPosition, int childPosition) {
    return this.expandableListDetail.get(this.expandableListTitle.get(groupPosition))
            .get(childPosition);
}

@Override
public long getChildId(int groupPosition, int childPosition) {
    return childPosition;
}

@Override
public View getChildView(int groupPosition, final int childPosition,
                         boolean isLastChild, View convertView, ViewGroup parent) {

    //declare our view and viewholder objects
    View view = convertView;
    ViewHolder viewHolder;
    String expandedListText;

    //define childType
    int childType = getChildType(groupPosition, childPosition);
    //define the toggleTag position
    Pair<Long, Long> childHeaderToggleTag = new Pair<Long, Long>(getGroupId(groupPosition), getChildId(groupPosition, childPosition));

    if (convertView == null) {
        viewHolder = new ViewHolder();
        switch (childType) {
            case CHILD_HEADER:
                //inflate our layout and textview then setTag viewholder if the view is null
                view = LayoutInflater.from(context).inflate(R.layout.navdrawer_list_item_header, null);
                viewHolder.textView = (TextView) view.findViewById(R.id.expandedListItemChildHeader);
                viewHolder.childHeaderToggle = (Switch) view.findViewById(R.id.toggle_allDevices);
                break;
            case CHILD_LINE_ITEM:
                expandedListText = (String) getChild(groupPosition, childPosition - 1);
                //inflate our layout and textview then setTag viewholder if the view is null
                view = LayoutInflater.from(context).inflate(R.layout.navdrawer_list_item, null);
                viewHolder.textView = (TextView) view.findViewById(R.id.expandedListItem);
                viewHolder.textView.setText(expandedListText);
                break;
            default:
                expandedListText = (String) getChild(groupPosition, childPosition - 1);
                //inflate our layout and textview then setTag viewholder if the view is null
                view = LayoutInflater.from(context).inflate(R.layout.navdrawer_list_item, null);
                viewHolder.textView = (TextView) view.findViewById(R.id.expandedListItem);
                viewHolder.textView.setText(expandedListText);
                break;
        }
        view.setTag(viewHolder);
    }
    else {
        //otherwise if the view exists then gettag() our saved view
        viewHolder = (ViewHolder) view.getTag();
    }

    //control the state of the child header toggle switch
    if (childPosition == 0) {
        viewHolder.childHeaderToggle.setTag(childHeaderToggleTag);
        // set switched on if groupId/childId is in switched list
        viewHolder.childHeaderToggle.setChecked(mToggleSwitchedItems.contains(childHeaderToggleTag));
        setChildToggleCheckedState(mToggleSwitchedItems.contains(childHeaderToggleTag));

        //depending on toggle state set our child header text colors
        if (!getChildToggleCheckedState()) {
            viewHolder.textView.setTextColor(ContextCompat.getColor(context, R.color.navDrawerInactiveText));
        }
        else {
            viewHolder.textView.setTextColor(ContextCompat.getColor(context, R.color.navDrawerDisabledText));
        }

        // set OnClickListener to handle checked switches
        viewHolder.childHeaderToggle.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                final Switch cb = (Switch) v;
                final Pair<Long, Long> tag = (Pair<Long, Long>) v.getTag();
                if (cb.isChecked()) {
                setChildToggleCheckedState(true);
                    mToggleSwitchedItems.add(tag);
                } else {
                setChildToggleCheckedState(false);
                    mToggleSwitchedItems.remove(tag);
                }
                //update our list when switch toggled
                notifyDataSetChanged();
            }
        });
        //set the text for our child header here
        viewHolder.textView.setText("All Teams");
    }
    else {

        //depending on toggle state set our remaining text colors
        if (!getChildToggleCheckedState()) {
            viewHolder.textView.setTextColor(ContextCompat.getColor(context, R.color.navDrawerInactiveText));
        }
        else {
            viewHolder.textView.setTextColor(ContextCompat.getColor(context, R.color.navDrawerDisabledText));
        }


        //set our text for all remaining children
        expandedListText = (String) getChild(groupPosition, childPosition - 1);
        viewHolder.textView.setText(expandedListText);
    }

    return view;
}

@Override
public int getChildrenCount(int listPosition) {
    return (this.expandableListDetail.get(this.expandableListTitle.get(listPosition))
            .size() + 1);
}

@Override
public Object getGroup(int listPosition) {
    return this.expandableListTitle.get(listPosition);
}

@Override
public int getGroupCount() {
    return this.expandableListTitle.size();
}

@Override
public long getGroupId(int listPosition) {
    return listPosition;
}

@Override
public View getGroupView(int listPosition, boolean isExpanded,
                         View convertView, ViewGroup parent) {
    String listTitle = (String) getGroup(listPosition);
    if (convertView == null) {
        LayoutInflater layoutInflater = (LayoutInflater) this.context.
                getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = layoutInflater.inflate(R.layout.navdrawer_list_group, null);
    }
    TextView listTitleTextView = (TextView) convertView
            .findViewById(R.id.listTitle);
    listTitleTextView.setTypeface(null, Typeface.BOLD);
    listTitleTextView.setText(listTitle);
    return convertView;
}

@Override
public boolean hasStableIds() {
    return false;
}

@Override
public boolean isChildSelectable(int listPosition, int expandedListPosition) {
    return true;
}

Answer 2

在PL / SQL中，您可以通过:P50_SELECT（或v('P50_SELECT')）访问它们。它将是一个以冒号分隔的列表，仅包含已检查项的值。您可以先使用apex_util.string_to_table(:P50_SELECT)

将其转换为数组，然后对其进行迭代

Oracle Apex：如何从PL / SQL访问复选框选中的值？

2 个答案: