我已经发布了相同的问题几次,但还没有解决.我有一个ListFragment,我想突出显示列表中选定的项目.我已经提出使用“选择器”的建议.我不明白如何使用这个选择器.我的ListFragment类是：
// Create an adapter with list of stores and populate the list with
// values
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),android.R.layout.simple_list_item_1,StoreList);
setListAdapter(adapter);
mDbHelper.close();
}
/*
* (non-Javadoc)
*
* Handles the event when an item is clicked on left pane,performs action
* based on the selection in left pane
*
* @see android.app.ListFragment#onListItemClick(android.widget.ListView,* android.view.View,int,long)
*/
@Override
public void onListItemClick(ListView l,View v,int position,long id) {
String selectedStore = (String) getListAdapter().getItem(position);
DetailFragment fragment = (DetailFragment) getFragmentManager()
.findFragmentById(R.id.detailFragment);
if (fragment != null && fragment.isInLayout()) {
v.setBackgroundColor(getResources().getColor(R.color.BLUE));
// passes selectedStore to detail fragment
fragment.setText(selectedStore);
// getItemList(selectedStore);
}
使用setBackground永久设置颜色,但是当选择另一个项目时,我希望它消失.
我了解如何在ListView中使用选择器,但在我的情况下,如果我没有为Listview定义任何xml,那么我将如何使用“selector”？我正在使用预定义的android.R.layout.simple_list_item_1.
解决方法
以下为我工作：
RES /颜色/ menu_highlight.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:state_pressed="true"
android:drawable="@color/red" />
<item
android:state_selected="true"
android:drawable="@color/red" />
<item
android:drawable="@color/white" />
</selector>
RES /值/ colors.xml：
<?xml version="1.0" encoding="utf-8"?> <resources> <color name="white">#FFFFFF</color> <color name="red">#FF0000</color> </resources>
res / layout / menuitem.xml ::(列表中的每个项目的XML)
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="wrap_content"
android:layout_width="fill_parent">
<TextView
android:id="@+id/textmenu"
android:layout_height="wrap_content"
android:text="text"
android:textColor="#FFFFFF"
android:background="@color/menu_highlight"
android:visibility="visible"
android:layout_width="fill_parent" />
</LinearLayout>
最后,在ListFragment类中,添加View prevIoUs并将以下代码添加到onlistitemclick函数中(在ListFragment: highlight selected row中提到)
public class MenuListFragment extends ListFragment{
View prevIoUs;
@Override
public void onListItemClick(ListView l,long id) {
super.onListItemClick(l,v,position,id);
//Logic to highlight selected item
prevIoUs.setSelected(false);
v.setSelected(true);
prevIoUs=v;
}
}
