How can I place Button or TextView at the absolute bottom in RelativLayout?

Question

There seems to be some hidden padding in the RelativLayout, I'm I right?

I've got this TextView:

    <TextView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:background="@color/green"
    android:text="LOG IN"/>

in a RelativeLayout.

What I cant understand is why

    android:layout_alignParentBottom="true"

doesn't place the TextView all the way down. ref image:

Is there any way to remove this padding?

Answer 1

The solution to my question was very easy and provided by @Marco Dufal.

Go in the dimens.xml in the res/values folder and set the margin to 0dp:

<dimen name="activity_horizontal_margin">0dp</dimen>
<dimen name="activity_vertical_margin">0dp</dimen>