quizz | Simples quiz desenvolvido com html , css , e javascript | Game Engine library

I am trying to set up an activity with a fragment with a recyclerview and a botom navigation menu. When I tap on the 'Dashboard', I can see the progress bar and it updates the data from Firestore but when I hit the Quizzes I cannot see the progress bar or new data. All I am seeing is the same data. I think it's not moving to other fragment.

As a beginner I do not know the actual working of fragments and recyclerview I am doing it with the help of people and resources available online. I couldn't figure out where the problem is. I can provide more codes if needed.

NOTE: I am not getting any error.

bottom_nav_menu.xml

I'm sending a quiz to users and trying to listen for their first reaction. The problem is how can I get the first reaction each one picks and not the others? I can't find a way to figure out which reaction each one picks first since many times users pick many reactions.

Something like:

Which is the color Red?

🔵 🔴 🟡

Each user answers with the reactions the bot provides, and after a little time the bot shows the right answer with the winners and losers.

So i'm on a project which is a quiz website for french medical student and I'm using Wordpress to develop it. I'm having trouble with something : I want, through a function, to display a value on the home page. This value is how many quizzes are available. To do that, I know that in my database I have a list of my quizzes which are sort by an id. You probably guessed that I want to use the list ID to know the number of quizzes.

To summarize :

• I need to select the last id from a row in a table from a database
• To integrate that value in a function
• Function that I will transform in shortcode for elementory

My problem : I tried a lot of things but nothing work, I searched during hours and the "final" code that I have is that :

I'm trying to create a component Button that can help me navigate between stacks. I use react-navigation to navigate in the app. The problem is that I have 3 files :

-App.js

I was trying to fetch data from the Firestore and show it in a RecyclerView. But, I am getting the following errors. I do not have much experience in coding, but I tried to add RecyclerView and fragments in my project.

I am using Kotlin as language.

I have been trying to figure out what went wrong and for a solution for the last three days but now I think I must seek help from experts like you.

Following is the error I get in the Logcat

I'm trying to write my gradebook in sqlite. Suppose my gradebook looks like this:

I am trying to get all the data from mongodb but it shows [object] [object] how do I get array data to angular from mongodb? Here is my code:

How can I convert userIDs to usernames of these users when sending data from db? I think it's possible using middlewares, but I don't know how to do it. There is my route

I'm new to developping android TV applications. I am building a quizz game which needs a lot of images, videos, mp3 and gifs to show up simultaneously at a given time depending on the business logic of the game. I am using:

• glide to show images / gifs (images are High Definition);
• android Async and Handler / Thread / Runnable pattern to play sounds;
• android video player to play videos (videos are High Definition);
• nested RelativeLayout / LinearLayout to display the views;
• View.setVisibility(GONE) to hide views and View.setVisibility(VISIBLE) to show it.

My problem is this:

On a Samsung galaxy tab 4 device, the game is smooth! But on a TV device, TCL 1920x1080 40dpi that should run the game, it is laggy.

I have read a lot of blog posts about how to optimize code ; like using ConstraintLayout instead of nested layouts, using View.setVisibility(INVISIBLE) instead of View.setVisibility(GONE) and I am also planning to use Picasso instead of Glide to get some fps but I'm not confident about all those. Can anyone give me advices on how to optimise my code to get some more fps (I mean getting like 10 or 15 fps not just 2 or 3)? Thanks in advance guys, cheer up!