UiMode not working with ActivityTestRule, works fine with ActivityScenario though

[sergio-sastre]

Describe the bug When UiMode is used with the deprecated ActivityTestRule, it does not work. This is reproducible when using android-testify, which uses ActivityTestRule under the hood

Environment The setup in which the bug is reproducible:

• Device or Emulator: Emulator
• API level: Any
• AndroidUiTestingUtils version: 2.0.0, but also previous
• Affected Component: UiModeTestRule
• Buggy Configuration: UiMode

Expected behavior The UiMode should change accordingly

Additional context This can be solved for API 29+ by changing the UiMode via adb. android-testify will likely migrate to ActivityScenario in version 2.0.0, so it might not need a fix for previous versions

[sergio-sastre]

Notes:

• From API30+, it uses adb which is pretty fast indeed
• For lower Api levels, it uses AppCompatDelegate, and it also works on lower APIs with Android-Testify :)

[sergio-sastre]

Added in 2.2.0