Question

This is what my application looks like using expanable listview to read data from database and then displaying it, the range is for 3 month or 12 weeks! now what i want is to display only content of every week !! i dont want to display the WEEK label! for example if there is any data during this 12 weeks we will display it ( but just with day label and data description) but if not we want to display nothing!! ( not display the Weeks!) and also i want to disable the collapsing of each item.

this is my adapter

public class MyCareHeaderExpandableListAdapter extends MyCareExpandableListAdapter {

public MyCareHeaderExpandableListAdapter(Context context) {
    super(context);
}
//--------------------------------------------------------------------

@Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
    //Log.d("getChildView", "getChildView " + groupPosition);
     //View view = adapter.getView(childPosition, convertView, parent);
    Item item = getChild(groupPosition, childPosition);
    return setContentView(R.layout.expandable_list_item, convertView, item);
}
//--------------------------------------------------------------------
@Override
public long getChildId(int groupPosition, int childPosition) {
    int id = ((ScheduleItem)m_childrens.get(groupPosition).getItem(childPosition)).getID();
    return id;
}
//--------------------------------------------------------------------

/**
 * This function is called to generate the view for the groups.
 */
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
    String name[] = getGroup(groupPosition);

    //  Generating header
    //  A header has no child, and begins the name with "Week"
    //if (getChildrenCount(groupPosition) == 0 && (name[1] == null)) { 
    if (name[1] == null) { 
        convertView = m_inflater.inflate(R.layout.expandable_list_week, null);
        TextView textView = (TextView)convertView.findViewById(R.id.txtHeader);
        Font.setToView(textView, Font.BOLD);
        textView.setText(name[0]);
    }
    //  Generating group name
    else {
        //Log.d("getGroupView", name);
        convertView = m_inflater.inflate(R.layout.expandable_list_group, null); 
        TextView textView = (TextView)convertView.findViewById(R.id.txtDay);
        textView.setText(name[0]);
        Font.setToView(textView, Font.BOLD);

        TextView textView2 = (TextView)convertView.findViewById(R.id.txtDate);
        textView2.setText(name[1]);
        Font.setToView(textView2, Font.BOLD);
    }
    return convertView;
}

Answer 1

Two issues you are dealing with:

(1) don’t display group view for weeks with no entries

For this, I suggest modifying your group cursor query such that it does not return a cursor with entries for “empty” weeks.

(2) don’t allow users to collapse groups

For this same purpose, I implemented the OnGroupClickListener to intercept the group clicks and essentially do nothing with it. This allows me to control when the groups are expanded or collapsed. Here my listener implementation:

/**
 * Only purpose here is to intercept taps on the header rows and ignore them
 * (avoid expandable list view adapter from expanding/collapsing).
 */
@Override
public boolean onGroupClick(ExpandableListView parent, View v,
        int groupPosition, long id) {
    return true;
} 

Edit:

To have all the groups expanded:

    int groupCount = myCursorTreeAdapter.getGroupCount();
    for (int i = 0; i < groupCount; i++) {
        myExpandableListView().expandGroup(i);
    }