android小demo札记

分类: IT文章 • 2022-05-30 11:43:07

android小demo笔记
点击button 换Button的背景图片
先建drawable 中button_selector.xml

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

然后layout中设置   android:background="@drawable/button_selector"

android小demo札记

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