问更改透明背景的圆形按钮的颜色

EN

 <?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" android:padding="10dp">
    <!-- you can use any color you want I used here gray color-->
    <stroke
        android:height="1.0dip"
        android:width="1.0dip"
        android:color="#ffee82ee" />

    <solid android:color="@android:color/transparent"/>
    <corners android:radius="7dp"/>
</shape>

   <Button
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/bg"
    android:textColor="#ffee82ee"/>

  <Button
         android:id="@+id/button1"
         android:background="@drawable/selector_xml_name"
         android:layout_width="200dp"
         android:layout_height="126dp"
         android:text="Hello" />

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:drawable="@drawable/numpad_button_bg_selected" android:state_selected="true"></item>
    <item android:drawable="@drawable/numpad_button_bg_pressed" android:state_pressed="true"></item>
    <item android:drawable="@drawable/numpad_button_bg_normal"></item>

</selector>

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

<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true" android:state_pressed="true" android:drawable="@drawable/likeactivepressed" />
<item android:state_pressed="true" android:drawable="@drawable/likeinitialpressed"/>
<item android:state_checked="true" android:drawable="@drawable/likeon"/>
<item android:drawable="@drawable/likeinitial"/>
</selector>

  android:background="@drawable/like_button"