How do I make all the text changing after I edit the name : Mit App Inventor?

MIT App Inventor Help
1

Hi, I need help. I have already created the UI to edit the text.

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My problem here is that after I edit the name, the name in the variable TeacherList does not automatically change

I hope to get some help here. Thank you.

2

As an example, I edit the name Kaveithra to 'Kavei', and the name in the list view changed to 'Kavei'. but the problem is the name in the variable TeacherList are still 'Kaveithra'

3

In order to make changes permanent you have to use tinyDB else every time app restarts the list will get values from global variable

4

Make sure you have selected an item in the listview

5

Sorry, I am still a beginner. But if can, can you show me the idea to use TinyDB with my situation

6

Already doing that, only in the list view changed but not the variable TeacherList text

7

Something like this:

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image734×637 79.1 KB

now when you restart the app, the latest TeacherList will be applied.

3 Likes
8

A simple example

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image547×619 64.8 KB

2 Likes
9

I appreciate your help. I will try it later. But how about the text that I circle, once I edit Kaveithra's name to Kavei, I hope the text that I circle will also change. Should I do something with this coding?

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image717×737 119 KB

Thank you in Advance for all help

10

Instead of using selection and names you could use selection index... If selection index is 1 then do ... else if is 2 ... etc

1 Like
11

Asides from tutorials, there should never be data encoded into programs, like you did with your teacher names in text blocks.

These are the only text and numbers I would expect to find in a program:

  • 0
  • 1
  • -1
  • '' (blank or empty string)
  • 180
  • Pi
  • ... other mathematical constants
  • special characters, if coding a text parser

If you see examples in this forum with sample data, they are a learning crutch for the rest of the posted code, and not part of recommended coding practice.

1 Like