How to use android XML's with libgdx such as selector style, animations -

i made game common android libraries, , made nice animations one:

<?xml version="1.0" encoding="utf-8"?> <set     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"      android:shareinterpolator="false">     <scale         android:interpolator="@android:anim/accelerate_decelerate_interpolator"         android:fromxscale="1.3"         android:toxscale="1.8"         android:fromyscale="1.4"         android:toyscale="0.9"         android:pivotx="50%"         android:pivoty="50%"         android:fillbefore="true"         android:fillafter="false"         android:duration="800" />     <set android:interpolator="@android:anim/decelerate_interpolator">         <scale            android:fromxscale="1.8"            android:toxscale="0.3"            android:fromyscale="0.9"            android:toyscale="0.2"            android:pivotx="50%"            android:pivoty="50%"            android:startoffset="800"            android:duration="600"            android:fillbefore="false" />         <rotate            android:fromdegrees="0"            android:todegrees="-45"            android:pivotx="50%"             android:pivoty="50%"             android:startoffset="800"            android:duration="600" />     </set>     <scale            android:interpolator="@android:anim/decelerate_interpolator"            android:fromxscale="0.3"            android:toxscale="1.6"            android:fromyscale="0.2"            android:toyscale="1.4"            android:pivotx="50%"            android:pivoty="50%"            android:startoffset="1400"            android:duration="600"            android:fillbefore="false"            android:fillafter="false" />     <rotate            android:fromdegrees="-45"            android:todegrees="45"            android:pivotx="50%"             android:pivoty="50%"             android:startoffset="1400"            android:duration="600" /> </set> 

and made custom buttons styles:

<selector     xmlns:android="http://schemas.android.com/apk/res/android">      <item android:state_pressed="true" >         <shape>             <gradient                 android:startcolor="@color/light_blue"                 android:endcolor="@color/dark_blue"                 android:angle="270" />             <stroke                 android:width="3dp"                 android:color="@color/black" />             <corners                 android:radius="3dp" />             <padding                 android:left="10dp"                 android:top="10dp"                 android:right="10dp"                 android:bottom="10dp" />         </shape>     </item> 

but can't them working on libgdx project because uses android libraries. know there's library called tween i'd rather make styles , animations this.

animation startanimation = animationutils.loadanimation(this, r.anim.start_anim_two);     startan.startanimation(startanimation); 

any idea of how export them libgdx project?