Nextcloud-deck: Create cards

[stefan-niedermann]

[desperateCoder]

bump @stefan-niedermann

next to dev pls

[CaptInsano]

Looking forward to this.

I need a kanban solution with a decent andoid app!

[desperateCoder]

C'mon @stefan-niedermann 😝

[stefan-niedermann]

@desperateCoder please have a look at create-cards-branch. Basically i think it might work this way, but there are two problems left:

1. When i type in a title and press back, i can see the created card for a second in the list, but then it gets deleted (maybe some problem with the sync mechansim?) -> Can you check this pls?
2. There might be a timing problem: The user-object (which is needed to create a card) is loaded asynchronous and might not be available at the time when the human user presses the back button. Unfortunately LiveData is lifecycle-aware and we can not observe the user-object in the onStop()-callback - observers will not get notified in lifecycle-callbacks sigh. Since there are no network operations on getting the user-object, i think it should be there in every case, but we have to make sure to handle the other case gracefully.

[desperateCoder]

Yep, I'll have a look at this asap. Thanks for the UI base!