N級ExpandableListView

我想實現一個N級ExpandableListView和我使用這些代碼getChildView和getGroupView：N級ExpandableListView

@Override 
public View getChildView(int groupPosition, int childPosition, 
     boolean isLastChild, View view, ViewGroup parent) { 

    ExpandNode child = (ExpandNode) getChild(groupPosition, childPosition); 
    ExpandNode group = (ExpandNode) getGroup(groupPosition); 

    if (group.hasChild()) { 
     if (view == null) { 
      view = LayoutInflater.from(context).inflate(R.layout.index_expandable_list, null); 
     } 
     ExpandableListView expandableListView = (ExpandableListView) view.findViewById(R.id.myExpandableListView); 
     ExpandAdapter adapter = new ExpandAdapter(context, group.getChilds()); 
     expandableListView.setAdapter(adapter); 
    } else { 
     if (view == null) { 
      view = LayoutInflater.from(context).inflate(R.layout.index_child_row, null); 
     } 
     TextView childTextView = (TextView) view.findViewById(R.id.childTextView); 
     childTextView.setText(child.getTitle().toString()); 
    } 
    return view; 
}

和：

@Override 
public View getGroupView(int groupPosition, boolean isLastChild, View view,ViewGroup parent) { 
    ExpandNode group = (ExpandNode) getGroup(groupPosition); 
    if (view == null) { 
     view = LayoutInflater.from(context).inflate(R.layout.index_parent_row, null); 
    } 
    TextView childTextView = (TextView) view.findViewById(R.id.parentTextView); 
    childTextView.setText(group.getTitle().toString()); 
    return view; 
}

問題是當我使用嵌套適配器，如getChildView中所見，groupPosition值在內部適配器的getGroupView中始終爲0，並始終引用arrayList中的第一個值。例如： ArrayList中的值是：

Level1 
    level1_1 
    level1_2 
    level1_3 
level2

但它表明：

Level1 
    level1_1 
    level1_1 
    level1_1 
level2

它，當我使用嵌套適配器只發生，它使用getChildView這樣當工作原理：

@Override 
public View getChildView(int groupPosition, int childPosition,boolean isLastChild, View view, ViewGroup parent) { 

    ExpandNode child = (ExpandNode) getChild(groupPosition, childPosition); 
    if (view == null) { 
     view = LayoutInflater.from(context).inflate(R.layout.index_child_row, null); 
    } 
    TextView childTextView = (TextView) view.findViewById(R.id.childTextView); 
    childTextView.setText(child.getTitle().toString()); 
    return view; 
}

但它不再是N級別的列表... 有沒有一個建議我該如何解決這個問題？在我的適配器

其他實施方法如下所述：

@Override 
public Object getChild(int groupPosition, int childPosition) { 
    return groups.get(groupPosition).getChilds().get(childPosition); 
} 

@Override 
public long getChildId(int groupPosition, int childPosition) { 
    return childPosition; 
} 

@Override 
public int getChildrenCount(int groupPosition) { 
    return groups.get(groupPosition).getChilds().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 boolean hasStableIds() { 
    return true; 
} 

@Override 
public boolean isChildSelectable(int arg0, int arg1) { 
    return true; 
}

來源

2013-07-04 Soheil Setayeshi

你解決了你的問題嗎？ – Jilberta

不好，不幸的是... –

所以你沒有像TreeView一樣編寫N級ExpandableListView？ – Jilberta