Variables are used to store data in AppInventor and come in two types: local and global. Local variables can only be accessed within the block of code they are defined in, while global variables can be accessed from any part of the program. Proper use of local versus global variables depends on whether the data needs to be shared throughout the entire program or just within a specific block. Defining a variable as global or local impacts how and where it can be accessed within an AppInventor program.

1. AppInventor betounsi

3. DataData

4. Data Source
1 2 3
Messenger
User
Images
text
Programmer
Phone data
other

5. DataData Types

6. Data Types
Strings
Example: “bonjour” operations : length, uppercase …
Example: 0…9 operations: + - * /
Numbers
Boolean
Example: true Or False

7. DataVariables

8. Variables
Your subtitle goes here
Variables are so important, to store data in it .
 We can store data in variables
 Variables data vary – they can be changed
 There exists 2 types of variables
IDEA
Global variable
Local variable

9. DataLists

10. DataData base

11. Local & Global variable
Your subtitle goes here
Local variable VS Global variables
When we use Global variables ?
How could we use global variables ?
How we define a global variable ?
How could we use local variables ?
When we use local variables ?
How we define a local variable ?