MDC-101 Keyboard Issue

[runkelstein]

Describe the bug
The Keyboard in the login screen does overlay the Buttons and text box

To Reproduce
Steps to reproduce the behavior:

1. start app in emulator
2. enter user name
3. Now the Keyboard Overflows the text input (not very user friendly design)

Expected behavior
All Textboxes and Buttons appear on top of the keyboard

Screenshots
If applicable, add screenshots to help explain your problem.

Codelab details (please complete the following information about the codelab):

• Level MDC-101
• Language Kotlin

Additional context
I tried to fix it my self by using the constraint layout and redesign everything. But constraint layout does not work here! All my control are then somehow stuck to the left top corner of the screen. This happens although constraints have been aplied and I have added the constraints library dependency in build.gradle