tree a5c1993f44b884305d866ff613a99a65b86774d6
parent fff1420b2860e18ab3738ec065ae97891a83b552
author stuartmorgan <stuartmorgan@google.com> 1614271324 -0800
committer GitHub <noreply@github.com> 1614271324 -0800
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[file_selector] Migrate to null safety (#3631)

Migrates the app-facing package to null safety. Includes replacing Mockito with a custom fake/mock.

Fixes an issue where the example didn't handle dialogs being canceled, which was highlighted by the NNBD migration. (Previously, they would cause null assertions at runtime, which wasn't noticed during development. NNBD for the win!)

Fixes flutter/flutter#75235