Button always displays on top in FrameLayout

This answer

Buttons in Lollipop and higher have a default elevation to them whichcauses them to always draw on top. You can change this by overridingthe default StateListAnimator.

Try putting this into your button XML:

android:stateListAnimator="@null"

The FrameLayout should now cover thebutton.

In the Android 5.0 (API 21) and above, you must add android:elevation into the view.

<FrameLayout    xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent">    <Button        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:onClick="changeColor"        android:text="new button"/>    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="some text"        android:elevation="3dp"/>

Put your Button inside FrameLayout

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent">    <FrameLayout        android:layout_width="wrap_content"        android:layout_height="wrap_content">        <Button            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="new button" />    </FrameLayout>    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="some text" /></RelativeLayout>