Android button design xml

gradient.xml <?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle"> <!-- Gradient Bg for listrow --> <gradient android:startColor="#f1f1f2" android:centerColor="#e7e7e8" android:endColor="#cfcfcf" android:angle="270" /> </shape>

layout.xml
<Button
    android:id="@+id/Button01"
    android:layout_width="wrap_content"
    android:layout_height="fill_parent"
    android:layout_weight="1"
    android:background="@drawable/gradient"
    android:text="Übernehmen" >.