B4J Question Is there something like "Wait" or "Delay" for some milliseconds?

[positrom2]

In communication with a µC I need to have some delay before sending a new request for transmitting data to the µC. In the µC dialect , there is a "Wait" statement as a delay before executing the next statement. How could I implement that in B4J?

 

[derez]

Two options:
1. Not recommended - a waste time loop
2. Recommended - a timer that is enabled at the start event and ticks after the delay period.

 

[positrom2]

1. Not recommended - a waste time loop
2. Recommended - a timer that is enabled at the start event and ticks after the delay period.

1: There is no hurry.
2: I know. But that needs to rewite the code and, (despite of 1), the timer always has to treat the (unknown) worst case. In many dialects we have delay instructions, so why not here?

 

[Erel]

You can easily create a "busy loop":

Sub Delay (DurationMs As Int)
 Dim target As Long = DateTime.Now + DurationMs
 Do While DateTime.Now < target
 Loop
End Sub

 

[jmon]

There is also a sleep function in the jAutoItX library.

 

[positrom2]

Thanks for the delay function. Actually, I used something like that in B4A while ago -but I forgot about it...
The "sleep" function looks a little difficult to implement but I will try also.

 

[jmon]

The "sleep" function looks a little difficult to implement but I will try also.

Yes, I agree with you, I was just suggesting as an alternate method, but the one Erel recommanded is the best.