由网友(距离的思念太苦)分享简介：我愿做一个简单的事情：定义绘制具有exacly相同的背景色系统语句pressed背景颜色。我不喜欢这样的RES /可绘制/ my_drawable.xml：I would like to do a simple thing:Define a drawable which has exacly same back...

我愿做一个简单的事情： 定义绘制具有exacly相同的背景色系统语句pressed背景颜色。 我不喜欢这样的RES /可绘制/ my_drawable.xml：

I would like to do a simple thing: Define a drawable which has exacly same background colour as system state-pressed background colour. I do it like this in res/drawables/my_drawable.xml:

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

我总是得到：

I always get:

java.lang.UnsupportedOperationException: Cant convert to color: type=0x2

任何线索？

问候

推荐答案

您可能需要执行以下操作来解决你的问题：

You might need to do the following to fix your problem:

1）定义2种颜色在你的颜色每个主题文件：

1) Define 2 colors for each theme in your colors file:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="my_color_dark">#ff33B5E5</color>
    <color name="my_color_light">#ff355689</color>
</resources>

2）创建文件RES /价值/ attrs.xml的内容是：

2) Create file res/values/attrs.xml with contents:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <attr name="my_color" format="reference" />
</resources>

3）假设你有2个主题，在你的styles.xml（ Theme.dark 和 Theme.light ）定义：

<style name="Theme.dark" parent="@style/Theme.Sherlock">
    <item name="my_color">@color/my_color_dark</item>
</style>

<style name="Theme.light" parent="@style/Theme.Sherlock.Light">
    <item name="my_color">@color/my_color_light</item>
</style>

4）使用颜色在绘制：

4) Use the color in a drawable:

<color android:color="?attr/my_color"/>

希望这应该解决您的问题。

Hope this should fix your problem.