android - 使用选择器使 TextView 变粗

Question

当用户按下我的 TextView 时，我想将 TextView 设为粗体。这就是我正在尝试的:

// styles.xml
<style name="TextOn">
    <item name="android:textStyle">bold</item>  
</style>

<style name="TextOff">
    <item name="android:textStyle">normal</item> 
</style>


// my_selector.xml
<?xml version="1.0" encoding="utf-8"?>

<selector xmlns:android="http://schemas.android.com/apk/res/android">
  <item android:state_focused="true" android:state_pressed="true" style="@style/TextOn" />
  <item android:state_focused="false" android:state_pressed="true" style="@style/TextOn" />
  <item android:state_focused="true" style="@style/TextOn" />
  <item android:state_focused="false" android:state_pressed="false" style="@style/TextOff" />
</selector>


// my textview in a layout
<TextView
  ...
  android:duplicateParentState="true"
  android:textAppearance="@drawable/my_selector" />

将textAppearance 设置为selector drawable 似乎不对，事实上，它没有任何效果。我们如何做到这一点？

谢谢

Answer 1

将选择器应用于样式仅适用于颜色和可绘制对象。请在下面的帖子中查看答案。

How to define bold in an Android selector