在扩展列表中删除组 [英] Delete group in Expandable List

问题描述

我想删除集团在我的扩展列表中选择时，并有刷新删除后发生的清单。

I am trying to delete Group when selected in my Expandable List, and having the list refreshed after the delete occurred.

我把源$ C ​​$ c从谷歌：

I took the source code from google:

<一个href="http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/view/ExpandableList1.html" rel="nofollow">http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/view/ExpandableList1.html

我试过几种方法来删除它，但没有成功，任何人都取得了吗？

I tried couple of ways to delete it, but no success, anyone achieved that already?

谢谢， 射线。

推荐答案

回答第二个问题（添加行了孩子和放大器;数据结构）

Answer for the second question (Add rows to a child & datastructure)

有关的数据结构网络化：

For the Datastructure:

public class GroupItem {
 private String mItemText;
 private List<ChildItem> mChildItems=new ArrayList<ChildItem>();    

 public GroupItem(String itemText) {
  mItemText=itemText;
 }

 public String getItemText() {
  return mItemText;
 }

 public ChildItem getChild(int childPosition) {
  return mChildItems.get(childPosition);
 }

 public void addChild(ChildItem childItem) {
  return mChildItems.add(childItem)
 }

 public void removeChild(int childPosition) {
  return mChildItems.remove(childPosition);
 }

}

public class ChildItem {
 private String mItemText;
 public ChildItem(itemText) {
  mItemText=itemText;
 }

 public String getItemText() {
  return mItemText;
 }
}

现在设置它，你会做这样的事情：

Now to set it up you would do something like:

List<GroupItem> items = new ArrayList<GroupItem>();

GroupItem item1 = new GroupItem("This is group 1");
item1.addChild(new ChildItem("This is a child item of group 1"));
item1.addChild(new ChildItem("This is another child item of group 1"));

等等...

and so on...

那么，在适配器你需要返回相应的数据。

Then, in the Adapter you would need to return the appropriate data.

有关您的有关问题行： 在你的谷歌的例子，它们返回一个TextView。但是你可以让自己的布局与你喜欢的任何内容。例如：

For your question concerning rows: In your Google example, they return a TextView. You can however make your own Layout with whatever content you like. For example:

<ImageView android:id="@+id/RowIcon" 
  android:layout_width="56px" 
  android:layout_height="56px" 
  android:layout_marginLeft="12px" 
  android:layout_marginTop="2px">
</ImageView>
<TextView android:id="@+id/RowTextView"
     android:paddingLeft="10px"
     android:paddingTop="10px"       
     android:layout_width="wrap_content"
     android:layout_height="wrap_content" android:textColor="#666666" android:textSize="14px"/>


</LinearLayout>

然后用这个布局在您的适配器。而不是返回，也就是说，一个TextView的，你只返回这是一个查看：

And then use this Layout in your Adapter. Instead of returning, say, a TextView, you'll just return this as a View:

public View getChildView(int groupPosition, int childPosition, boolean isLastChild,
            View convertView, ViewGroup parent) {

LayoutInflater mInflater = (LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View rowView = mInflater.inflate(YOUR XML FILE FROM ABOVE, null);
    ImageView rowIcon = (ImageView)rowView.findViewById(R.id.RowIcon);
    iconType.setBackgroundResource(AN IMAGE HERE);
    TextView rowText =(TextView)rowView.findViewById(R.id.RowTextView);
    textAddress.setText(items.get(groupPosition).getChild(childPosition));

    return rowView;
 }

所以，我觉得应该让你去。

So, i think that should get you going.

此外，请接受我的回答如果你满意他们。

Also, please accept my answers if they satisfy you.

干杯。

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