Set background checkbox android when dissable

to day i work with it and i get a problem. When i set Checkbox like:

checkboxsend.setEnabled(false);

Here i want the background of checkbox not change to disable? What can i do that..please help me! Thank

The my xml:

 <CheckBox
    android:id="@+id/checkboxsend"
    android:focusable="false"
    android:focusableInTouchMode="false"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:checked="false"
    android:enabled="false" />