[Android] Fix Label size when using Hint text

[rmarinho]

Description of Change

When setting the HelpText for accessibility on a Label it causes to set the Hint text on a TextView .
Later when we are Measuring it Android will take the Hint text size in account and return wrong sizes that won't fit just the text but hint also.
We need to clear the Hint before measure.

Trying to move the calls to set hint to other places is no good because sizing is called sometimes multiple times when text is changing.

Issues Resolved

• fixes Adding accessibility tags to a label seems to cause the renderer to need more space  #2580

API Changes

None

Platforms Affected

• Android

Behavioral/Visual Changes

Labels with HelpText with size correctly

Before/After Screenshots

BEFORE:

AFTER:

Testing Procedure

Go to issue 2580 make sure the 2 rows look the same.

PR Checklist

• Has automated tests
• Rebased on top of the target branch at time of PR
• Changes adhere to coding standard

[kingces95]

Does the trick. Why did Android decide that setting automation text also set the hint text?

All versions of the same question: Why not just clear the hint text right after setting the automation text? Why bother restoring the hint text? With this change the label will measure zero width and so any hint text will never be displayed, right?