Cwa-app-ios: App isn't working with iOS 14 Preview

[markus-codes]

Avoid duplicates

• [ x ] Bug is not mentioned in the FAQ
• [ x ] Bug is not already reported in another issue

Describe the bug

The App isn't working with the beta release of iOS 14. When the App is opened there will be only a white blank screen without any information.

Expected behavior

The app should open and show the usual dashboard.

Steps to reproduce the issue

1. Install the iOS 14 Developer Preview
2. Open the App

Technical details

• iOS Version: 14.0 (18A5301v)
• Device: iPhone XR

Possible Fix

Additional context

I know that iOS 14 is still a developer preview and not released now but maybe it's useful to take a look at this bug to avoid issues when iOS 14 will be officially released.

[n-thumann]

Duplicate of https://github.com/corona-warn-app/cwa-app-ios/issues/749 ✌️
ExposureNotification Framework isn´t available yet in iOS 14 Beta 😊

[inf2381]

https://www.coronawarn.app/en/faq/#ios_14_beta. The checkbox in the issue template is there for a reason