Android Question alternative to sleep ?

Not clear what you are using Sleep for and why you are looking for a replacement. Note that Sleep doesn't cause any thread to actually sleep.

Hum I use Sleep only to wait informations: for example I send a command to my device (Create objet), when the objet is create I receive information about this command (01 to success and other for an echec). I can't send information while I haven't my objet correctly create. So I use Sleep to wait this. It's work but not perfectly that's why I would like something to do nothing while I haven't receive the information.

I don't know if I do something like this it can work
When I have response from the device an event is reach and I can see if the command is success and then set this boolean to false

You should use resumable subs.
https://www.b4x.com/android/forum/threads/b4x-resumable-subs-sleep-wait-for.78601/#content

Hirogens said:

I don't know if I do something like this it can work

Click to expand...

I suggest to learn on how to use resumeable subs.

https://www.b4x.com/android/forum/threads/b4x-resumable-subs-sleep-wait-for.78601/

It seems to me the question is not about Sleep / Wait For as it is.

I would like something which put everything in pause

Click to expand...

It's enough typical situation, when an app sends a request to server and waits a reply. During waiting time user's activity is undesirable.
Something similar modal Msgbox.

Well, it's relatively simple to prevent user's activity (WindowManager.LayoutParams) and screen rotation (ActivityInfo).

Don't add complicated ways just for a wait. Mostly it's enough to disable some views and post a message like "Please wait". On the other hand a server's response takes some milliseconds so there isn't a problem at all.

You should never try to hold the main thread. As written above you should learn how to use resumable subs.

Hello
I don't know if resumable subs can help me: I send a command to my starter.
and this is the function in my starter

This command send to my device an instruction. When the device send to me the information that I ask this function
handle the response, and in my main I treate the informations. If my command is a success I can continue the code. I have a lot of command like this and that's why I need to be sure to handle the response everytime.
I don't know if it can help you more :/
Maybe you're right with resumable subs but maybe there is an other option =)
Thanks !

Valid code:

Please don't ask questions about the code flow unless you watched and understood the resumable subs video.