我已经制作了一个Expandablelistview
,我想在各组之间增加一个差距,我尝试了一些东西,但没有任何效果。我尝试的第一件事是在android:dividerHeight
中添加XML
,这会在群组和孩子之间产生差距,但我只需要群体之间的差距。此外,我已经尝试了suggestion,但我无法在我的代码中正确实现它。
这是我的ExpandableListAdapter
:
public class ExpandableListAdapter extends BaseExpandableListAdapter {
private Context _context;
private List<String> _listDataHeader; // header titles
private HashMap<String, List<String>> _listDataChild;
public ExpandableListAdapter(Context context, List<String> listDataHeader,
HashMap<String, List<String>> listChildData) {
this._context = context;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
}
@Override
public Object getChild(int groupPosition, int childPosititon) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.get(childPosititon);
}
@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) {
final String childText = (String) getChild(groupPosition, childPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_item, null);
}
TextView txtListChild = (TextView) convertView
.findViewById(R.id.lblListItem);
txtListChild.setText(childText);
return convertView;
}
@Override
public int getChildrenCount(int groupPosition) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.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) {
String headerTitle = (String) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_group, null);
}
TextView lblListHeader = (TextView) convertView
.findViewById(R.id.lblListHeader);
lblListHeader.setTypeface(null, Typeface.BOLD);
lblListHeader.setText(headerTitle);
return convertView;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
我真的希望有人可以帮助我:)。
答案 0 :(得分:0)
正如解决方案建议您必须在private ExpandableListView exp;
中声明ExpandableListAdapter
,然后将其作为参数放在public ExpandableListAdapter
中,以便您的内容如下所示:
public ExpandableListAdapter(Context context, List<String> listDataHeader,
HashMap<String, List<String>> listChildData, ExpandableListView exp) {
this._context = context;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
this.exp = exp;
}
在您的mainactivity
中,您在解析时添加了ExpandableListview
,以便它看起来像
ExpandableListAdapter mylistadapter = new ExpandableListAdapter(this, listDataHeader, listDataChild, expListView);
最后,您可以通过以下方式设置分隔符高度:
exp.setDividerHeight(10);