res - values - arrays.xml 에서
<?xml version="1.0" encoding="utf-8"?>
<resources>
<array name="mic_volume_meter_res">
<item>@drawable/btn_rec_active_ani01</item>
<item>@drawable/btn_rec_active_ani02</item>
<item>@drawable/btn_rec_active_ani03</item>
<item>@drawable/btn_rec_active_ani04</item>
<item>@drawable/btn_rec_active_ani05</item>
<item>@drawable/btn_rec_active_ani06</item>
<item>@drawable/btn_rec_active_ani07</item>
<item>@drawable/btn_rec_active_ani08</item>
<item>@drawable/btn_rec_active_ani09</item>
<item>@drawable/btn_rec_active_ani10</item>
<item>@drawable/btn_rec_active_ani11</item>
<item>@drawable/btn_rec_active_ani12</item>
<item>@drawable/btn_rec_active_ani13</item>
</array>
</resources>
이런 식으로 해도되고,
소스에서
int[] imgs = {R.drawable.img1, R.drawable.img2};
로 해도 됩니다.