1.创建正常状态的drawable文件(以删除按钮为例)
创建正常状态的xml文件,起名为delete_btn_normal
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<corners android:radius="20dp"/>
<stroke android:color="@color/colordarkGray" android:width="0.4dp"/>
<solid android:color="@color/colorGrayBack"/>
</shape>
设置圆角为20dp,colordarkGray和colorGrayBack为自定义的颜色可以随意设置。
corners 表示圆角 stroke 表示边框,设置颜色和边框宽度 solid 表示背景颜色
创建按下状态的xml文件,起名为delete_btn_pressed
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<corners android:radius="25dp"/>
<stroke android:color="@color/colordarkGray" android:width="0.4dp"/>
<solid android:color="@color/colordarkGray"/>
</shape>
再创建按钮的资源文件起名为delete_alarm_btn_drawable
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/delete_btn_nomal" android:state_pressed="false" />
<item android:drawable="@drawable/delete_btn_pressed" android:state_pressed="true"/>
</selector>
设置两种状态下的drawable
接着设置按钮的background属性为delete_alarm_btn_drawable即可
<Button
android:id="@+id/delete_btn"
android:layout_width="match_parent"
android:layout_marginRight="25dp"
android:layout_marginLeft="25dp"
android:layout_height="40dp"
android:background="@drawable/delete_alarm_btn_drawable"
android:textColor="@color/colorRed"
android:textSize="16sp"
android:gravity="center"
android:text="删除闹铃"
android:layout_marginTop="30dp"
android:layout_marginBottom="40dp"
style="?android:attr/borderlessButtonStyle"/>
效果图