Fix In-App Message auto-dismiss crash

[jennantilla]

Description

One Line Summary

Fix In-App Message auto-dismiss crash.

Details

Manually closing an auto-dismiss In-App Message before the timer runs out resulted in a NullPointerException crash. Replacing messageView non-null assertion !! with safe call operator ? prevents crash.

Motivation

Prevent NullPointerException crash when auto-dismiss IAM is manually closed.

Scope

Non-null assertion !! replacement with safe call operator ? only applied to the messageView variable within showMessageView method. Similar safe call operator replacements may be made to other code blocks in the future.

Testing

Manual testing

Tested manually dismissing the auto-dismiss IAM before the timer runs out on Pixel 6 emulator running Android 13 as well as Pixel 7 emulator running Android 14.

Affected code checklist

• Notifications
  • Display
  • Open
  • Push Processing
  • Confirm Deliveries
• Outcomes
• Sessions
• In-App Messaging
• REST API requests
• Public API changes

Checklist

Overview

• I have filled out all REQUIRED sections above
• PR does one thing
  • If it is hard to explain how any codes changes are related to each other then it most likely needs to be more than one PR
• Any Public API changes are explained in the PR details and conform to existing APIs

Testing

• I have included test coverage for these changes, or explained why they are not needed
• All automated tests pass, or I explained why that is not possible
• I have personally tested this on my device, or explained why that is not possible

Final pass

• Code is as readable as possible.
  • Simplify with less code, followed by splitting up code into well named functions and variables, followed by adding comments to the code.
• I have reviewed this PR myself, ensuring it meets each checklist item
  • WIP (Work In Progress) is ok, but explain what is still in progress and what you would like feedback on. Start the PR title with "WIP" to indicate this.

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This change is 

[jkasten2]

I don't understand the importance of this comment. Isn't everything in this function running in the same thread?

[jennantilla]

Updated comment for clarity!