java android listView 点击后选择消失

Question

我想这样做：我有一个列表，其中每两个项目的颜色都不同，并且想要选择被点击的项目。选中的项目高亮显示，但释放后返回旧颜色

我这样做了： Artist_list_background_alternate.xml：

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

 <item
     android:state_selected="false"
     android:state_pressed="false"
     android:drawable="@color/sign_out_color" />

 <item android:state_pressed="true"
     android:drawable="@color/survey_toplist_item" />

 <item android:state_selected="true"
     android:state_pressed="false"
     android:drawable="@color/survey_toplist_item" />

</selector> 

artists_list_backgroundcolor.xml：

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@color/grey" android:state_pressed="false" android:state_selected="false" />
    <item android:drawable="@color/survey_toplist_item" android:state_pressed="true" />
    <item android:drawable="@color/survey_toplist_item" android:state_pressed="false" android:state_selected="true" />
    <item android:drawable="@color/survey_toplist_item" android:state_pressed="false" android:state_selected="true" />
</selector> 

Java 文件代码::

 @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View view = convertView;
        if (view == null) {
            view = lInflater.inflate(R.layout.listitem, parent, false);
        }

        if (position % 2 == 0) {
            view.setBackgroundResource(R.drawable.artists_list_backgroundcolor);
        } else {
            view.setBackgroundResource(R.drawable.artists_list_background_alternate);
        }

        ((TextView) view.findViewById(R.id.heading)).setText(data.get(position));

        return view;
    }


  ListView lvMain = (ListView) findViewById(R.id.list);
        lvMain.setAdapter(adapter);

布局xml ::

 <ListView
        android:id="@+id/list"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:cacheColorHint="#00000000"
        android:dividerHeight="1dp" />

我不知道我做错了什么

Answer 1

为了突出显示某个项目，您需要为您的ListView 提供choiceMode。例如：

android:choiceMode="singleChoice"

另外，在选择器中为状态 android:state_activated="true" 添加颜色。