我有简单的名单将在从数据库中充满还有一个复选框。我需要一个手柄，所有选中的复选框。 WHN CLEAR键是pssed在这一点上我需要的所有选中的复选框行ID删除它们$ P $。做这个事情 ： 我list.xml文件看起来是这样的：

I have simple list to be filled in from the database along with a checkbox. I need a handle to all the checkboxes selected. Whn the CLEAR button is pressed at that point I need the row ids of all the selected check boxes to delete them. To do this : My list.xml file looks like this :

< LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
            android:orientation="vertical"
          android:layout_width="fill_parent"
          android:layout_height="fill_parent" >

<ListView 
          android:id="@id/android:list"
      android:layout_width="fill_parent"
          android:layout_height="wrap_content"
          android:layout_weight="1"
          />

<Button 
       android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/clearselected"
        android:text="CLEAR"
        android:clickable ="false"/>

 </LinearLayout>

和我的data_entry.xml是这样的：

and my data_entry.xml looks like this:

 <LinearLayout
      xmlns:android="http://schemas.android.com/apk/res/android"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content">
          <CheckBox 
          android:id="@+id/CheckBox" 
          android:layout_width="wrap_content" 
          android:layout_height="wrap_content"
          android:layout_x="50px" 
          android:layout_y="22px"></CheckBox>
<TextView android:text="@+id/EntryText"
          android:id="@+id/EntryText"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:textAppearance="?android:attr/textAppearanceLarge"
          android:textColor="@color/blue"/>

 </LinearLayout>

现在：我有list.java文件我在哪里填充名单如下：

Now: I have list.java file where I am populating the list as follows:

private void populateList() {
     Cursor c = db1.getAllList();
      String[] fields = new String[]{db1.get_data()};

       SimpleCursorAdapter cursorAdapter = new 

     ListAdapter adapter = new SimpleCursorAdapter(this, R.layout.data_entry, c,
          fields, new int[] {R.id.EntryText});


     setListAdapter(adapter);
}

现在我在哪里得到的句柄heckbox引起其他地方的data_entry包含复选框它会给我一个空的异常。另外，我需要一个监听器来处理的复选框状态？我只是停留在这一点上，没有线索。

Now where do i give the handle to the heckbox cause anywhere else it would give me a null exception as the data_entry contains the checkboxes. Plus I need a listener to handle the checkbox status? I am just stuck at this point with no clue..

推荐答案

而不是滚动您自己，为什么不直接使用标准的ListView与CHOICE_MODE_MULTIPLE启用？

Rather than rolling your own, why not just use a standard ListView with CHOICE_MODE_MULTIPLE enabled?

listView.setChoiceMode(CHOICE_MODE_MULTIPLE);
listView.setAdapter(new ArrayAdapter<String>(this,
                android.R.layout.simple_list_item_multiple_choice, fields));

您可以再问问ListView控件的检查项目。

You can then ask the listView for the checked items.

listView.getCheckedItemPositions();