ExpandableListView を使用して展開可能なリストを取得しています。価格、詳細、メモの 3 つの展開可能な「親」リストがあります。親リストごとに一意の子リストを追加できるようにしたいと考えています。しかし、現在の設定方法では、同じ子リストが各親リストに追加されています。価格、詳細、およびメモ用に独自の個別の子リストを追加できるようにするにはどうすればよいですか?
これが私のコードです:
public class Assignment extends ExpandableListActivity {
int listFlag = 0;
@SuppressWarnings("unchecked")
public void onCreate(Bundle savedInstanceState) {
try{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_assignment);
SimpleExpandableListAdapter expListAdapter =
new SimpleExpandableListAdapter(
this,
createGroupList(), // Creating group List.
R.layout.group_row, // Group item layout XML.
new String[] { "Group Item" }, // the key of group item.
new int[] { R.id.row_name }, // ID of each group item.-Data under the key goes into this TextView.
createChildList(), // childData describes second-level entries.
R.layout.child_row, // Layout for sub-level entries(second level).
new String[] {"Sub Item"}, // Keys in childData maps to display.
new int[] { R.id.grp_child} // Data under the keys above go into these TextViews.
);
setListAdapter( expListAdapter ); // setting the adapter in the list.
}catch(Exception e){
System.out.println("Errrr +++ " + e.getMessage());
}
}
//Create Headings of Assignment attributes
private List createGroupList() {
ArrayList result = new ArrayList();
//Create string array for Topic headings
String[] topics = {"Price", "Details", "Notes"};
//Iterate through array of names to lay them out correctly
for( int i = 0 ; i < 3 ; ++i ) {
listFlag = i;
HashMap m = new HashMap();
m.put( "Group Item", topics[i] ); // the key and it's value.
result.add( m );
}
return (List)result;
}
@SuppressWarnings("unchecked")
private List createChildList() {
ArrayList result = new ArrayList();
for( int i = 0 ; i < 3 ; ++i ) { // this -15 is the number of groups(Here it's fifteen)
/* each group need each HashMap-Here for each group we have 3 subgroups */
ArrayList secList = new ArrayList();
for( int n = 0 ; n < 1 ; n++ ) {
HashMap child = new HashMap();
child.put( "Sub Item", " "test"));
secList.add( child );
}
result.add( secList );
}
return result;
}