2-Player Cooperative Quiz using Firebase

MIT App Inventor Help
1

Hi folks!

I'm trying to create a basic prototype where:

  1. 2 players type in their usernames
  2. They begin the quiz.
  3. At each question the quiz shows separate texts or images to Player 1 and Player 2 but identical answer options (buttons or textbox).
  4. When Player 1 or 2 inputs the answer, the quiz moves to the next question for both players. If the answer is correct, both players score a point.

I guess my main question is: how to have the app recognize 2 different users, then present the information based on their identifiers?

I'm clearly under skilled for this endeavor, but any help would be appreciated!

So far my point of reference for 2-player multiplayer app was this https://amerkashi.wordpress.com/2016/03/06/firebasechat/

2

Hi Steponas_D,

You may have to use CloudDB too. CloudDB is useful for 2 users to share data with each other on seperate devices.

I'm making the app right now...

3

Use Cloud DB

4

Here's an AIA sample file.

Project4.aia (7.0 KB)

You will also have to make the following changes:

  1. In Firebase DB, input your questions like these:

image

  1. Reset your Firebase URL in Screen2.
5

Wow, thank you, @gordonlu310 !

Had a bit of an issue opening the .aia on Chrome/Firefox: "This project was saved with a newer version of the App Inventor system." , so the blocks are a bit mixed up:

Project4_Blocks
Project4_Blocks1232×806 46.3 KB

Would you happen to know how to sort it out?

1 Like
6

Oh sorry I used the test version of MIT Ai2. I’ll give you a new file later.

7

Use this instead. I've corrected some bugs.

Project4_fixed.aia (7.3 KB)

1 Like