Reading all data from firebase using MIT App Inventor

[rajsingh]

Hi. I am trying to read all the data from firebase. The database consists of multiple lights with three variables: id, control, and status. The database looks like this:

I want to read all the values using MIT App Inventor from the database once I click the "READ DATA" button. The number of lights is not fixed so I should use something related to len(list). I want the output to be as follows:

If status is 1 then "ON"
If status is 0 then "OFF"
If control is 1 then "YES"
If control is 0 then "NO"

Since I am new, any screenshots with the MIT App Inventor Block diagrams will be helpful. Thanks in advance.

[TIMAI2]

See here:

How do I retrieve all data from Firebase?

Hello, my name is Oliver and I'm creating an app for a senior design project in high school. I have made it this far with forums and all, but I need to figure out how to retrieve every single value under a certain child in firebase so that I could display it on a screen. This is my code and firebase date so far, I'm just clueless on how to get all the data because the tags are going to be different and the same at certain points. The covered part is a user, and each user in the firebase has food…

and here

FAQ Section: Firebase

Introductory FireBase Pending Failure Warning - JIS Brief Intro to Cloud Data and the FireBase Component - HAL FireBase component help Tutorials Atomic queue and delete - @TimAI2 Simple bulletin board - @TIMAI2 Firebase Chat sample - Amerikashi Firebase bus route tutorial - Romin Irani Firebase Spanish tutorial - kio4 Firebase WhatsAppInventorMIT chat project - Montes FireBase DataChanged Detection from IOT updated DB - @Juan_Antonio Pitfalls Unable to open app with firebase on non-…

[ABG]

There might be a way to get all the data in just one FireBase call.

What do you get as a value if you request tag "Lights", at the base of your data tree?