安卓图片显示的按钮

实现下图的xiao

直接上代码

<Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/bg_dayinji"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"/>

bg_dayinji.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="false" android:drawable="@drawable/dayinji" />
    <item android:state_focused="true" android:drawable="@drawable/dayinji" />
    <item android:state_pressed="true" android:drawable="@drawable/dayinji_press" />
</selector>