2

所以我有一个 ExpandableListView。现在我在父列表中有 3 个项目。当我单击其中一个时，子列表（弹出子列表）。我想要的是一个文本框显示在下面而不是一个列表。

我想要一个父母的列表，但孩子的文本框。我不知道该怎么做。这是我现在的代码：

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 Assignment Topic headings
    String[] topics = {"1", "2", "3"};

    //Iterate through array of names to lay them out correctly
    for( int i = 0 ; i < 3 ; ++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 < 3 ; n++ ) {
        HashMap child = new HashMap();
        child.put( "Sub Item", "Sub Item " + n );
        secList.add( child );
      }
     result.add( secList );
    }
    return result;
}

显然，当我希望孩子成为文本框时，我正在创建一个 childList。不知道如何实现这一点。非常感谢任何帮助！

4

2 回答 2

0

try to place only an edittextview in "R.layout.child_row" . If it gives an error then place a textview also but make it invisible.I hope that will solve the problm

于 2012-07-16T08:39:37.180 回答
0

这很简单，你应该像这样创建一个名为：child_layout_row 的布局......

<LinearLayout  xmlns:android="http://schemas.android.com/apk/res/android" android:layout_height="wrap_content" android:layout_width="match_parent"> 
    <EditText android:id="@+id/text_edit_child"
              android:layout_width="match_parent"
              android:layout_height="wrap_content" />
</LinearLayout>

而不是R.layout.child_row,R.layout.child_layout_row就是这样....

于 2012-07-16T09:01:42.600 回答