如何在ExpandableListView
中的群组项目之间添加间隙(比方说20dp)?我有自定义组布局,RelativeLayout
作为父级。向父母添加边距无济于事。
答案 0 :(得分:7)
不确定你的目标是什么,但这是一个想法
将主活动中的列表传递到自定义列表
MyExpandableListAdapter myAdapter = new MyExpandableListAdapter(expandableList);
在自定义列表类方法中:
private ExpandableListView exp;
public MyExpandableListAdapter(ExpandableListView exp)
{
this.exp = exp;
}
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent)
{
if (convertView == null)
{
LayoutInflater infalInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_child, null);
}
exp.setDividerHeight(0);
return convertView;
}
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent)
{
if (convertView == null)
{
LayoutInflater infalInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_row, null);
}
exp.setDividerHeight(20);
return convertView;
}
例如,这应该在组之间添加间距而不是子项
答案 1 :(得分:0)
对于未来,在 xml 布局中,您可以将 android:dividerHeight"
添加到您的 ExpandableListView
中,并且您还可以调整分隔线颜色:
<ExpandableListView
android:id="@+id/expandableListView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:divider="@color/red"
android:dividerHeight="5dp"
android:indicatorLeft="?
android:attr/expandableListPreferredItemIndicatorLeft"
/>