这是一种方法
使用 Separator 视图创建自定义 ListView ROW 布局文件。(一个标题文本视图)
listview_row_with_separator.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<!-- list Separator TextView Style - the list separator Header-->
<TextView
style="?android:attr/listSeparatorTextViewStyle"
android:id="@+id/textview_header_separator"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textColor="@android:color/black"
android:text="November, 2012"
android:visibility="gone"
/>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/textView_row_value"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="November 12, 2012"
android:textAppearance="?android:attr/textAppearanceMedium" >
</TextView>
</LinearLayout>
</LinearLayout>
重要!确保您的列表以某种方式排序(按日期)
扩展一个包含 "Your_List_Item" 的 ArrayAddapter 并实现一个 populateView(Your_List_Item) 如果下一个列表项不等于前一个列表项,则显示分隔符。
public class Your_List_Adapter extends ArrayAdapter<Your_List_Item> {
private Activity mActivity;
private String mCurrentMonth = "";
public Your_Adapter(Activity activity) {
super(activity, 0);
mActivity = activity;
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = mActivity.getLayoutInflater().inflate(
R.layout.listview_row_with_separator, null);
holder = new ViewHolder(convertView);
convertView.setTag(holder);
} else {
// the (list row) convertView is already inflated, so we can get
// it from the Tag
holder = (ViewHolder) convertView.getTag();
}
Your_List_Item your_list_item = getItem(position);
//Check if the next list item is not equal the previous list item.
if (!mCurrentMonth.equalsIgnoreCase(your_list_item.month.toString())) {
holder.populateView(your_list_item, true);
mCurrentMonth = your_list_item.date;
} else{
holder.populateView(your_list_item, false);
}
return convertView;
}
}
如果需要,适配器的 ViewHolder 类显示分隔符
class ViewHolder {
/********** DECLARES ************/
private TextView textView_row_value;
public TextView textview_header_separator;
public ViewHolder(final View root) {
/********** INITIALIZES *************/
textview_header_separator = (TextView) root.findViewById(R.id.textview_header_separator);
textView_row_value = (TextView) root.findViewById(R.id.textView_row_value);
}
public void populateView(final Your_List_Item your_list_item,final boolean needSeparator) {
/*
* add Separator
*/
if (needSeparator) {
//set header text: November, 2012
textview_header_separator.setText(your_list_item.date);
textview_header_separator.setVisibility(View.VISIBLE);
} else {
textview_header_separator.setVisibility(View.GONE);
}
//set row value: November 12, 2012
textView_row_value.setText(your_list_item.date);
}
}