setEnabled（false）->（true）/ selectableItemBackground作为可绘制对象后，没有可见的按钮反馈吗？

Question

With one button i'm disabling three other button's with button.setEnabled(false).
That works fine.
When this button is pressed again, the tree button's will be enabled with button.setEnabled(true).
They are still doing what they shoud and are fine responding to the onClickListener.
But since the enabling they do not visible respond when they get pressed.

How do i reactivate them right?
(i already searcht in google but didn't find anything).

---

private void startSleeping()
{
    editorState.putBoolean("SLEEPING", true);
    editorState.commit();

    buttonDrink.setEnabled(false);
    buttonEat.setEnabled(false);
    buttonWash.setEnabled(false);
    buttonDrink.setBackgroundColor(getResources().getColor(R.color.darkgray));
    buttonEat.setBackgroundColor(getResources().getColor(R.color.darkgray));
    buttonWash.setBackgroundColor(getResources().getColor(R.color.darkgray));
    buttonSleep.setBackgroundColor(getResources().getColor(R.color.orange));
    buttonWash.setTextColor(getResources().getColor(R.color.lightgray));
    buttonDrink.setTextColor(getResources().getColor(R.color.lightgray));
    buttonEat.setTextColor(getResources().getColor(R.color.lightgray));
    buttonSleep.setTextColor(getResources().getColor(color.black));
}

private void stopSleeping()
{
    editorState.putBoolean("SLEEPING", false);
    editorState.commit();

    buttonDrink.setEnabled(true);
    buttonEat.setEnabled(true);
    buttonWash.setEnabled(true);
    buttonDrink.setBackgroundColor(getResources().getColor(R.color.transparent));
    buttonEat.setBackgroundColor(getResources().getColor(R.color.transparent));
    buttonWash.setBackgroundColor(getResources().getColor(R.color.transparent));
    buttonSleep.setBackgroundColor(getResources().getColor(R.color.transparent));
    buttonWash.setTextColor(getResources().getColor(R.color.white));
    buttonDrink.setTextColor(getResources().getColor(R.color.white));
    buttonEat.setTextColor(getResources().getColor(R.color.white));
    buttonSleep.setTextColor(getResources().getColor(R.color.white));
}

---

        <Button
            android:id="@+id/buttonEat"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="?android:attr/selectableItemBackground"
            android:paddingBottom="@dimen/padding_size"
            android:paddingTop="@dimen/padding_size"
            android:text="@string/button_eat"
            android:textColor="@color/white"
            android:textColorHint="@color/white"
            android:textSize="@dimen/text_size" />

Answer 1

This is because you are setting the background resource as transparent instead of what you applied in the layout as the background drawable to those buttons. Re-apply those background drawables and you'll get the touch feedback again. That should solve your problem.

On a side note for future implementations you can directly provide the enabled/disabled background resource in the drawable's list-selector itself. use state_enabled = true/false. This eliminates the need of doing all of that in the code.