Fix the crash made from ag/22718542 am: ef82145696

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/ThemePicker/+/22751882

Change-Id: I4b8a70159da3b379068ec55254b01ca15c52b942
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>