1
私のアンドロイドアプリケーションではチェックボックスをオンにして、グループ要素の可視性をExpandableListViewに設定したいと思います。グループ要素のタイトルを設定したいチェックボックス名と同じです。グループ要素のExpandableListViewに可視性を設定したい
public void onCreate(Bundle savedInstanceState) {
try{
super.onCreate(savedInstanceState);
setContentView(R.layout.detailnewslist);
SharedPreferences settings = getSharedPreferences("mysettings", MODE_WORLD_READABLE);
boolean checkBoxValue1=settings.getBoolean("c1",false);
boolean checkBoxValue2=settings.getBoolean("c2",false);
/*if(checkBoxValue1==true)
{
t1.setText(settings.getString("checkbox", "null"));
}else{t1.setVisibility(View.GONE);}
if(checkBoxValue2==true){
t2.setText(settings.getString("checkbox1", "null"));
}else{t2.setVisibility(View.GONE);}
*/
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());
}
}
/* Creating the Hashmap for the row */
@SuppressWarnings("unchecked")
private List createGroupList() {
ArrayList result = new ArrayList();
for(int i = 1 ; i < 16 ; ++i) { // 15 groups........
HashMap m = new HashMap();
m.put("Group Item","Group I " + i); // the key and it's value.
result.add(m);
}
return (List)result;
}
/* creatin the HashMap for the children */
@SuppressWarnings("unchecked")
private List createChildList() {
ArrayList result = new ArrayList();
for(int i = 1 ; i < 16 ; ++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 < 5 ; n++) {
HashMap child = new HashMap();
child.put("Sub Item", "Sub Item " + n);
secList.add(child);
}
result.add(secList);
}
return result;
}
public void onContentChanged () {
System.out.println("onContentChanged");
super.onContentChanged();
}
/* This function is called on each child click */
public boolean onChildClick(ExpandableListView parent, View v, int groupPosition,int childPosition,long id) {
System.out.println("Inside onChildClick at groupPosition = " + groupPosition +" Child clicked at position " + childPosition);
return true;
}
/* This function is called on expansion of the group */
public void onGroupExpand (int groupPosition) {
try{
System.out.println("Group exapanding Listener => groupPosition = " + groupPosition);
}catch(Exception e){
System.out.println(" groupPosition Errrr +++ " + e.getMessage());
}
}