定义SeekBar

<SeekBar
        Android:id="@+id/seekbar"
        Android:layout_width="300dip"
        Android:layout_height="wrap_content"
        Android:layout_centerHorizontal="true"
        Android:layout_gravity="center"
        Android:layout_marginTop="0dip"
        Android:progressDrawable="@drawable/seekbar_img"
        Android:thumb="@drawable/media_player_progress_button" />

media_player_progress_button.png


seekbar_img.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:Android="http://schemas.Android.com/apk/res/Android">
<item Android:id="@+Android:id/background" Android:drawable="@drawable/fast_seek_progress" />
<item Android:id="@+Android:id/progress" Android:drawable="@drawable/media_player_progress_bg" />
</layer-list>
fast_seek_progress.png

media_player_progress_bg.png