commit 784a9ec804b9733e60f45f9afcd55a79ed9bca8f
author Nicolo' Mazzucato <nicomazz@google.com> Thu Apr 20 11:35:28 2023 +0000
committer Nicolò Mazzucato <nicomazz@google.com> Thu Apr 20 15:56:34 2023 +0000
tree ea42fd0948e5989f1637690849dbfab410f7e5c3
parent f54e5f90805b715c3acba0ddcab2923df042122e

Check for nullness in WallpaperService onDestroy

There are cases where the WallpaperService API is misused and an instance is created manually. In those cases, onCreate is not called as expected, but onDestroy is.
As mBackgroundThread was being created `onCreate`, it ended up being null in onDestroy.

Adding a null check to avoid breaking those places.

Bug: 275361339
Test: androidx.wear.watchface.editor.EditorSessionTest#commitWithPreviewImage
Change-Id: I89076da179493fa282f3e59895cfa4f4bfb6bdfc
Merged-In: I89076da179493fa282f3e59895cfa4f4bfb6bdfc