我使用 aListView
作为 a 中的子行,ExpandableListActivity
并为它定义了一个自定义CursorTreeAdapter
。正如预期的那样,我的代码正在填充值和视图,但是每个可扩展列表行(ListView
其中包含可变数量的项目)仅部分显示(仅显示前 2 个项目)。
通过代码进行调试时,我确认所有子行 (
ListView
) 都已正确填充(即其中包含 10-15 行)为了进一步确认,我更改
android:stackFromBottom = "true"
了ListView
,这次只为每个可扩展项目行显示最后 2 个项目。
`
public class WorkExpandableListAdapter extends CursorTreeAdapter {
public WorkExpandableListAdapter(Cursor cursor, Context context) { super(cursor, context, true); }
protected Cursor getChildrenCursor(Cursor groupCursor) { ... return childCursor; }
@Override
protected void bindChildView(View view, Context context, Cursor cursor,
boolean isLastChild) {
if (!noColumnsToDisplay) {
int numColumns = workProjection.length + 1; // to skip the _id
ArrayList<JXTField> jxtFields = new ArrayList<JXTField>();
for (int i = 1; i < numColumns; i++) {
jxtFields.add(new JXTField(workProjection[i - 1],
cursor.getString(cursor
.getColumnIndex(workProjection[i - 1]))));
}
//OrderAdapter is simply a customized Array adapter which converts name value pairs into //customized 2 line items
ArrayAdapter<JXTField> adapter = new OrderAdapter(WorkList.this,
R.layout.work_view_row, jxtFields);
((ListView) view.findViewById(R.id.expandable_child_list))
.setAdapter(adapter);
}
}
@Override
public View newChildView(Context context, Cursor cursor, boolean isLastChild, ViewGroup parent) {
return getLayoutInflater().inflate(R.layout.expandable_child_list,null); }
@Override
protected void bindGroupView(View view, Context context, Cursor cursor, boolean isExpanded) { ... }
@Override
protected View newGroupView(Context context, Cursor cursor, boolean isExpanded, ViewGroup parent) {
return ((TextView) getLayoutInflater().inflate(android.R.layout.simple_expandable_list_item_1, null));
}
}
`
expandable_child_list.xml
`
<ListView
android:id="@+id/expandable_child_listt"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingLeft="20dp"
android:layout_weight="2.0"
/>
`
work_view_row.xml `
<LinearLayout
android:orientation="vertical"
android:layout_width="0dip"
android:layout_weight="1"
android:layout_height="fill_parent">
<TextView
android:id="@+id/work_view_row_top_text"
android:layout_width="fill_parent"
android:layout_height="0dip"
android:layout_weight="1"
android:gravity="center_vertical"
/>
<TextView
android:layout_width="fill_parent"
android:layout_height="0dip"
android:layout_weight="1"
android:id="@+id/work_view_row_bottom_text"
android:ellipsize="marquee"
android:textAppearance="?android:attr/textAppearanceMedium"
/>
</LinearLayout>
`
当我第一次遇到它时,这看起来很容易解决,但是在浪费了太多时间之后,我求助于大师。也许我遗漏了一些非常明显的东西,但请指出。:(
提前致谢。