Why is my UIViewController not showing up in my popup card? - swift

Question

I wanted to create a pop up for one of my UIViewController and found this repo on GitHub.
It is working fine with my InfoViewController which only has 4 UILabels (I think this might be the problem that it is not showing up when you use reusable cells)
But somehow it is not working with my StructureNavigationListViewController and I do not know why.
I call the didTapCategory method in my MainViewController where the StructureNavigationController should pop up but I only see the dimming view (which is weird cause the tap recognizer and pan gestures are working fine but no content is showing up)
In my MainViewController I set up the popup like before:
#IBAction func didTapCategory(_ sender: UIBarButtonItem) {
let popupContent = StructureNavigationListViewController.create()
let cardpopUp = SBCardPopupViewController(contentViewController: popupContent)
cardpopUp.show(onViewController: self)
}
In my StructureNavigationListViewController I set up the table view and the pop up:
public var popupViewController: SBCardPopupViewController?
public var allowsTapToDismissPopupCard: Bool = true
public var allowsSwipeToDismissPopupCard: Bool = true
static func create() -> UIViewController {
let sb = UIStoryboard(name: "Main", bundle: nil)
let vc = sb.instantiateViewController(withIdentifier: "StructureNavigationListViewController") as! StructureNavigationListViewController
return vc
}
#IBOutlet var tableView: UITableView!
var structures = Variable<[Structure]>([])
public var treeSource: StructureTreeSource?
let disposeBag = DisposeBag()
var depthDictionary : [String : Int] = [:]
public override func viewDidLoad() {
structures.asObservable()
.bind(to:tableView.rx.items) {(tableView, row, structure) in
let cell = tableView.dequeueReusableCell(withIdentifier: "StructureNavigationCell", for: IndexPath(row: row, section: 0)) as! StructureNavigationCell
cell.structureLabel.text = structure.name
cell.spacingViewWidthConstraint.constant = 20 * CGFloat(self.depthDictionary[structure.id]!)
return cell
}.disposed(by:disposeBag)
_ = tableView.rx.modelSelected(Structure.self).subscribe(onNext: { structure in
let storyBoard = UIStoryboard(name:"Main", bundle:nil)
let plansViewCtrl = storyBoard.instantiateViewController(withIdentifier: "PlansViewController2") as! PlansViewController2
self.treeSource?.select(structure)
plansViewCtrl.treeSource = self.treeSource
plansViewCtrl.navigationItem.title = structure.name
self.show(plansViewCtrl, sender: self)
if let mainVC = self.parent as? ProjectOverViewTabController2 {
mainVC.addChildView(viewController: plansViewCtrl, in: mainVC.scrollView)
}
})
showList()
}
func showList() {
if treeSource == nil {
treeSource = StructureTreeSource(projectId:GlobalState.selectedProjectId!)
}
//The following piece of code achieves the correct order of structures and their substructures.
//It is extremely bad designed and rather expensive with lots of structures and should
//therefore be refactored!
if let strctrs = getStructures() {
var sortedStructures : [Structure] = []
while(sortedStructures.count != strctrs.count) {
for strct in strctrs {
if let _ = sortedStructures.index(of: strct) {
continue
} else {
depthDictionary[strct.id] = getDepthOfNode(structure: strct, depth: 1)
if let structures = getStructures() {
if let parent = structures.first(where: {$0.id == strct.parentId}) {
if let index = sortedStructures.index(of: parent) {
sortedStructures.insert(strct, at: index+1)
}
} else {
sortedStructures.insert(strct, at: 0)
}
}
}
}
}
structures.value = sortedStructures
tableView.reloadData()
}
}
func getDepthOfNode(structure: Structure, depth: Int) -> Int {
if(structure.parentId == nil || structure.parentId == "") {
return depth
} else {
if let structures = getStructures() {
if let parent = structures.first(where: {$0.id == structure.parentId}) {
return getDepthOfNode(structure: parent, depth: depth + 1)
}
}
}
return -1
}
private func getStructures() -> Results<Structure>? {
do {
if let projectId = GlobalState.selectedProjectId {
return try Structure.db.by(projectId: projectId)
}
} catch { Log.db.error(error: error) }
return nil
}
}
Lot of code here. Sorry..
Is it because I call the create() method after the viewDidLoad() dequeues the cells?

Answer 1

It's hard to tell what is the problem, since you left no information about where didTapCategory is supposed to be called, but maybe it has something to do with your modelSelected subscription being prematurely released?
Edit:
As posted here: https://stackoverflow.com/a/28896452/11851832 if your custom cell is built with Interface Builder then you should register the Nib, not the class:
tableView.registerNib(UINib(nibName: "CustomCell", bundle: nil), forCellReuseIdentifier: "CustomCellIdentifier")