android expandablelistview ne pas développer ou de recevoir des événements de clic

Je ne peux pas pour la vie de me comprendre pourquoi ma ExpandableListView ne développe pas... j'ai utilisé du journal des états dans juste environ chaque écouteur de clics je peux trouver de la ExpandableListView et il ne ressemble pas à l'un d'eux appelé.

Je sais qu'il y a de nombreux posts sur ce sujet mais j'ai lu à travers eux tous et essayé beaucoup de choses et j'ai pas de chance, j'espère que je suis absent quelques petites erreurs qui sera facile à repérer pour quelqu'un d'autre.

Activité Principale:

public class ForumListActivity extends Activity  {

    private static ArrayList<Forum> forumList;
    private static ArrayList<ArrayList<SubForum>> subForumList;
    private ExpandableListView forumListView;
    private ForumListAdapter forumListAdapter;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.setContentView(R.layout.main_page);
        this.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);

        forumListView = (ExpandableListView) this.findViewById(R.id.main_page_forum_list);

        forumList = new ArrayList<Forum>();
        subForumList = new ArrayList<ArrayList<SubForum>>();
        setUpForums(this);

        forumListAdapter = new ForumListAdapter(this, forumList, subForumList);
        forumListView.setAdapter(forumListAdapter);

        forumListView.setOnGroupExpandListener(new OnGroupExpandListener(){
            @Override
            public void onGroupExpand(int groupPosition) {
                Log.d("onGroupExpand", "this works?");
                for(int i=0; i<forumListAdapter.getGroupCount(); i++) {
                    if(i != groupPosition) 
                        forumListView.collapseGroup(groupPosition);
                }
            }
        });

        forumListView.setOnGroupClickListener(new OnGroupClickListener() {
            @Override
            public boolean onGroupClick(ExpandableListView parent, View v, int groupPosition, long id) {
                Log.d("onGroupClick:", "worked");
                parent.expandGroup(groupPosition);
                return true;
            }
        });
    }

Remarque: la méthode setUpForums() prend juste du système de tableaux et de les placer dans forumList et subForumList

ListViewAdapter:

public class ForumListAdapter extends BaseExpandableListAdapter {
private ArrayList<Forum> groups;
private ArrayList<ArrayList<SubForum>> children;
private Context ctx;
public ForumListAdapter(Context ctx, ArrayList<Forum> groups, ArrayList<ArrayList<SubForum>> children) {
this.ctx = ctx;
this.groups = groups;
this.children = children;
}
@Override
public Object getChild(int groupPosition, int childPosition) {
return children.get(groupPosition).get(childPosition);
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
if (convertView == null) {
LayoutInflater inflater = LayoutInflater.from(ctx);
convertView = inflater.inflate(R.layout.forum_list_child_item_row, null);
}
SubForum currentSubForum = children.get(groupPosition).get(childPosition);
TextView name = (TextView)convertView.findViewById(R.id.child_row_forum_title);
TextView desc = (TextView)convertView.findViewById(R.id.child_row_forum_description);
if (name != null)
name.setText(currentSubForum.getName());
if (desc != null)
desc.setText(currentSubForum.getDescription());
convertView.setFocusableInTouchMode(true);
return convertView;
}
@Override
public int getChildrenCount(int groupPosition) {
return children.get(groupPosition).size();
}
@Override
public Object getGroup(int groupPosition) {
return groups.get(groupPosition);
}
@Override
public int getGroupCount() {
return groups.size();
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
if (convertView == null)
{
LayoutInflater inflater = LayoutInflater.from(ctx);
convertView = inflater.inflate(R.layout.forum_list_group_item_row, null);
}
Forum currentForum = (Forum) groups.get(groupPosition);
TextView name = (TextView) convertView.findViewById(R.id.group_item_forum_title);
//ImageView image = (ImageView) convertView.findViewById(R.id.group_item_expander_image);
if(name != null)
name.setText(currentForum.getName());           
/*
if(image != null) {
int[][] group_state_sets = {{}, {android.R.attr.state_expanded}};
image.setVisibility(View.VISIBLE);  
int stateSetIndex = (isExpanded ? 1 : 0) ;  
Drawable drawable = image.getDrawable();  
drawable.setState(group_state_sets[stateSetIndex]);  
}
*/
return convertView;
}
@Override
public boolean hasStableIds() {
return true;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}

Groupe Mise En Page:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/turquoise_gradient"
android:orientation="horizontal"
android:paddingTop="6dip"
android:paddingBottom="6dip"
android:paddingLeft="6dip" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@drawable/turquoise_gradient"
android:orientation="vertical"
android:padding="2dip" >
<TextView
android:id="@+id/group_item_forum_title"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical|left"
android:gravity="left"
android:paddingLeft="5dip"
android:textColor="@color/white"
android:textSize="16dip" />
</LinearLayout>
<!--  
<LinearLayout 
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:gravity="center|right">
<ImageView
android:id="@+id/group_item_expander_image"
android:focusable="false"
android:focusableInTouchMode="false"
android:gravity="center"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:src="@drawable/collapse_down" />
</LinearLayout> -->
</LinearLayout>

présentation des enfants:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/turquoise_gradient"
android:orientation="horizontal"
android:paddingTop="6dip"
android:paddingBottom="6dip"
android:paddingLeft="6dip" >
<LinearLayout 
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="2dip"
android:background="@drawable/turquoise_gradient" >
<TextView
android:id="@+id/child_row_forum_title"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="left"
android:layout_gravity="center_vertical"
android:paddingLeft="5dip"
android:textColor="@color/white"
android:maxLines="1"
android:textSize="11dip"  />
<TextView
android:id="@+id/child_row_forum_description"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="left"
android:layout_gravity="center_vertical"
android:paddingLeft="15dip"
android:textColor="@color/white"
android:maxLines="2"
android:textSize="11dip"  />
</LinearLayout>
</LinearLayout>

principal de mise en page:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@color/black"
android:orientation="vertical" >
<ExpandableListView
android:id="@+id/main_page_forum_list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@color/black"
android:divider="@color/black"
android:dividerHeight="1dip"
android:clickable="true" />
</LinearLayout>

Toute aide que vous pouvez fournir est grandement apprécié!

sa peut-être parce que vous n'avez pas de données sur l'enfance, ont u débogué
essayer d'ajouter un peu de texte par défaut de la valeur à votre enfant de mise en page pour textviews

OriginalL'auteur Mitch Ware | 2012-06-13