PopupController | PopupController is a controller | Model View Controller library

I'm relatively new to Swift. I have a main view controller, ViewControllerMain, and a popover view controller, PopUpVC, which only has a label. I have a function, infoClicked that displays the popover with another function (showPopover) when the info button is clicked. When I click the button, I want to change the label text of the popover. However, with the current code, the label always displays "Default".

Here is my code:

I'm new to JavaFX. This was easy to do without FXML, but the FXML controllers are stumping me.

What I'm trying to do: Set up a main window that has a button. When clicked, the button launches a second popup window in which the user submits a value. Upon closing the second window (done currently with a button click on the pop-up), I'd like the user's input to be passed back to the main controller-- the main window that is already open.

So far, I've got 2 .fxml files(one for a main window the other for a popup), and the corresponding controllers: MainWindowController:

Let's say there is a simple framework to display popups:

I have a ViewController with a hidden view (let's call it, boxInsideView) on load. I'd like this boxInsideView's controller, or .swift file, to fire whenever the user clicks the box, not when the view controller loads. Like if I would be making an addSubview(boxInsideView upon clicking the box.

Instantiating my boxInsideView

I have a problem with showing popup dialogue using angularJS. I'm trying to exercise with the demo site. https://material.angularjs.org/latest/demo/dialog. following code is my controller js code.

My scenario, I am having tabbar with three viewcontroller and first tabbar viewcontroller I am showing tableview with some data. Whenever I am clicking the tableview cell I am passing the data to one special present model popupcontroller. If I dismiss popup controller I need to show directly to tabbar index 1 (I mean tabbar second viewcontroller) also need to pass the values.

Here, below code I tried

1. After select the tableview cell passing values to popupview controller
2. Popup close button click to pass the same value to tabbar index 1 (tabbar second viewcontroller)

Inside popup view controller

I am currently trying to implement a custom UIViewController which has a UINavigationController inside. This is a modal view that will be visible on the bottom of the screen and the user has different options to navigate inside this modal view. The background of the UIViewController is set to clear, so it shows as an overlay of the already visible screen.

I have now managed to set up and present my UIViewController like this:

I've run into the most frustrating bug. I'm setting up Notifications in my application and am using swift 4.2. Im using the new syntax. My popupController I've set is up as follows

I am using PopOver from ControlsFX, in a TableView If I trigger the startEdit of a cell, it should pop the PopOver. This part it works, the problem is, the arrow which is pointing to the row is not on the right place every time. If I select a row from the table which is at the bottom of the table , it points to a cell above it.

I need that arrow to point every time to the right cell in the TableView.

ControlsFX , version: 8.40.14

How can I solve this?

Here is the code where you can see how it works: