visible | An ember-cli addon for noticing changes in visibility | Plugin library

I am wondering how I can create something like this using JavaScript and A-frame (https://aframe.io).

I would like to create an onload function called load() that will check the value of a variable x and if x is one, the gltf with the id of 1 will show and the gltf's with the id of 2 and 3 will not be visible. The same goes for gltf's 2 and 3. How can I acomplish this? My code:

Hello dear stackoverflow users. I have an accordion. When this accordion is open, I want to make the invisible eye icon next to it visible. But which accordion is clicked, only its eye icon will open. Please help me :)

My code :

I want to add a Pie chart inside a JPanel. I have gone through this and this. But it didnt helped me.

I tried this code in the debugger but it is not getting pass line X. Somehow setScene function is not working and pie chart is not visible in the panel.

Here's my code:

I have a WPF app, linked to a SQL-server. I am using the MVVM-light package (I do actually have Prism.Core installed, but I'm not sure if I'm using it or not.... new to MVVM).

There's a DataGrid, bound to an ObservableCollection. I have been trying to implement the PropertyChangedEventHandler, but I can't seem to get it to work.

I have a Delete button bound, and I am able to remove rows, but when I re-open the form, the changes does not carry over.

I tried to change the binding-mode for the DataGrid from OneWay to TwoWay. With OneWay, the changes does not carry over when I re-open the form. With TwoWay, I get this error message when opening the child form (which contains the DataGrid):

System.InvalidOperationException: 'A TwoWay or OneWayToSource binding cannot work on the read->only property 'licenseHolders' of type 'Ridel.Hub.ViewModel.LicenseHoldersViewModel'.'

So, If I then add a set; to my public ObservableCollection licenseHolders { get; }, the program runs, but the previous problem persists, like it did when there was a OneWay mode configuration on the DataGrid.

What do I need to do to get this to work without communicating directly with the Sql-server, which would defy the whole point of using this methodology in the first place?

I've started to create UI tests for my PyQt5 widgets using QtTest but have run into the following difficulties:

• In order to speed up things, some of my widgets only perform operations when visible. As it seems that QtTest runs with invisible widgets, the corresponding tests fail.

• For the same reason, I cannot test program logic that makes a subwidget visible under certain conditions.

Is there a way to make widgets visible during test? Is this good practice (e.g. w.r.t. CI test on GitHub) and is QtTest the way to go?

I have tried to use pytest with pytest-qt without success as I couldn't find a proper introduction or tutorial and I do know "Test PyQt GUIs with QTest and unittest".

Below you find a MWE consisting of a widget mwe_qt_widget.MyWidget with a combobox, a pushbutton and a label that gets updated by the other two subwidgets:

I am attempting to add another checkbox to this program but for some reason it will not display when I run the program. Only the check box for the blue pill displays. I have attempted to add a couple things or change the way the program is structured, but nothing I have done so far has helped.

Code Below:

I am trying to add a loading spinner to a web application where I have been provided with an animated gif that should be used as the icon. Right now I'm doing this with a div that is initially hidden via CSS and then is shown when I want to indicate loading. I'm using the following CSS on this div so that when its shown the loading gif appears in the center of the screen

When navigating from Composable A -> Composable B, say Composable A is a Lazy List scrolled halfway down and Composable B is a Lazy List Item Details Screen. Currently, the lazy list scroll position isn't stored, and when navigating back to Composable A from B, the list starts from item index 0. We could store it in a ViewModel, and read the value back, as well as use rememberSaveable, however, I am unsure as to how to implement rememberSaveable so that it scrolls to the saved position after back navigation.

Which method would be preferred to use following good code practices?

Edit: My problem arises from the fact that the listState isn't stored when navigating back from composable B to A. So if we scroll to the bottom and select an item and look at its details, when we navigate back to the list it is scrolled to the top, instead of saving its scrollState.

My composable

I'm doing a Group Chat with Firebase and currently I'm using a RecyclerView to display chat messages and I'm having a problem. When you open the app in the fragmented home and you go to chat activity and start chatting (adding elements to recycler view) all goes fine. But, when you go via the NavigationDrawer to another fragment and get back to the chat fragment using again this Navigation Drawer. When you add one element in the chat it appears all in the blank it just displays the last message. Anybody knows why does this happens?

Here I leave the RecyclerView Adapter Code: