Fixed: Download fragment page is crashing.

[MohitMaliFtechiz]

Fixes #3949

Thanks to @CalebKL for reproducing and fixing the issue.

[CalebKL]

@MohitMaliDeveloper I have tested the the app with the above changes and it seems not to crash anymore. Since we are observing RxJavaUncaughtExceptionHandling.setup on the ZimManageViewModel init block, we would be able to prevent the crash when the viewmodel is alive. Although, I first thought it would be better to add it on the onCreate block when we start the application just incase we have any other rxjava's UndeliverableException that we might need to handle. But for now since its only affecting the ZimManageViewModel the solution would suffice.

You can also log the exception if you add this anywhere in the code.

  fun undeliverableException() {
    Observable.create { o ->
      o.onNext(1)
      o.onError(Exception("test"))
    }.take(1).subscribe { Log.d("ZimManageViewmodel", "---$it") }
  }

Run the app and cause the exception and observe the logs in the logcat

[codecov]

Codecov Report

Attention: Patch coverage is 27.77778% with 13 lines in your changes missing coverage. Please review.

Project coverage is 53.23%. Comparing base (974c7d4) to head (895e564).

Files	Patch %	Lines
...kiwix/kiwixmobile/zimManager/ZimManageViewModel.kt	27.77%	13 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #3952      +/-   ##
============================================
- Coverage     53.27%   53.23%   -0.04%     
- Complexity     1411     1413       +2     
============================================
  Files           303      303              
  Lines         11777    11795      +18     
  Branches       1568     1570       +2     
============================================
+ Hits           6274     6279       +5     
- Misses         4489     4501      +12     
- Partials       1014     1015       +1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[MohitMaliFtechiz]

Duplicate of #3953