Android - 如何按编程方式更改按钮的背景图像？

Question

如何使用Java代替xml执行以下操作？

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

Answer 1

在这里回答：Replace selector images programmatically