Creating do while loop

MIT App Inventor Help
1

I just want my app to play a sound three times when a button is pressed
. I think i have to create a do while loop but it doesnt seem straightforward.

2

Use the Player component, which has a completion event.

Init a global variable to count how many times the sound has played.

In the completion event, add 1 to the counter, and check if it's past 3.
If it's short of 3, play it again, Sam.

2 Likes
3

Here are the blocks with some short sounds as an example... but you will need to carry the sound of your choice -in the Designer, in 'upload file'- and select it in set Player1.source

Try the operation with other sounds present opening this list ↑ ↑ ↑ in Companion

image
image785×650 74.1 KB

If you need to repeat more than 3 times change the value of the Global Variable 'Repeat Times'

Also follows the *.aia with the programming ready, to be downloaded to your computer and imported in AI2 as a 'New project'

Play_n_Times.aia (116.7 KB)

image

Lito

@>-->---

4

screenshot
I don't know. If this was basic or 'c' you could just call player1 three times as I have done. See attached photo.

5

But, AppInventor is not C. Most operations are executed asynchronously. Therefore you have to add the when-Player1-completed block and catch the completion of each play step. When you do more AppInventor projects, you will see the great power of this.