Question

`我正在使用列表选择器，但它不能正常工作。单击列表项后，我获得了效果，但在单击项目之前没有效果。这是我的选择器代码：

<?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="@drawable/ic_launcher" />

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

    <item 
    android:state_focused="true" 
    android:state_pressed="false" 
    android:drawable="@drawable/headerplain" />

    <item android:state_selected="true"
     android:state_pressed="false"
        android:drawable="@drawable/headerplain" />
</selector>

and I have applied it to listView as 
 <ListView
        android:id="@+id/listView123"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"         
        android:listSelector="@drawable/list_selector"
        android:drawSelectorOnTop="true"
        android:focusable="true"
        >
    </ListView>

请帮我解决这个问题提前致谢

Answer 1

This是一个很好的教程，非常好地解释了选择器如何工作

Answer 2

我的drawable文件夹中有rowback和rowback_selected ...

并使用android:state_focused，android:state_selected，android:state_pressed ...

<item android:state_focused="true" android:drawable="@drawable/rowback" />
<item android:state_pressed="true" android:drawable="@drawable/rowback_selected" />
<item android:state_selected="true" android:state_focused="false"
    android:state_pressed="false" android:drawable="@drawable/rowback_selected" />
<item android:state_window_focused="false"
    android:drawable="@drawable/rowback" />

Android ListView选择器运行不正常

2 个答案: