How do I show a specific page/BLTNItem on demand?

[davidvjc]

Problem Description:
How do I show a specific page/BLTNItem on demand?

Steps to reproduce:
Say I have a selection of 5 bulletins (created like in the documentation), and on press of a button I only want to show bulletin number 4

Currently I'm using:
bulletinManager.showBulletin(above: self, animated: true)
let fourthItem: BLTNItem = makeFourthPage()
bulletinManager.push(item: fourthItem)

However, I get a "glitch" during the showBulletin animation where it very briefly shows the root item for half a second before pushing the intended Item.

I've tried changing the order, so creating and pushing the item first, then "showBulletin" but I get this error:

You must call the prepare function before interacting with the bulletin.

Environment:

• Device: iPhone XR
• OS: 12.1
• Version of BulletinBoard: latest

[adougies]

See my answer here on another issue: #117