Android Question For-Next-Exit

Giusy · Mar 11, 2019

Hi,
I have a button called "STOP" when I press it I want to get out of For and Next

B4X:

Fox x = 1 to 100
   .....
   .....
???? <----  the button "Stop" has been pressed and then Exit
   .....
next

It will be very simple for you, but I do not know how to intercept the button
Thank you

Erel · Mar 11, 2019

What happens inside this loop? Can you post the code?

Eme Fibonacci · Mar 11, 2019

B4X:

Sub Globals
    Dim stop As Boolean
End Sub

For x=1 To 100
        Log(x)
        If stop Then Exit
 Next

Sub Button1_Click
    stop=True
End Sub

Erel · Mar 11, 2019

This code will not work as the click event will only run after the loop ends. It will also take less than a 1ms to complete (test in release mode).

Star-Dust · Mar 11, 2019

also

B4X:

For x = 1 to 100
   .....
   .....
   Sleep(1)
   If ExitVariabile=true then X=101
   .....
next

Erel · Mar 11, 2019

Unless you are calling Sleep or Wait For inside the loop then you cannot stop it with an external event.

Eme Fibonacci · Mar 11, 2019

Erel said:
Unless you are calling Sleep or Wait For inside the loop then you cannot stop it with an external event.

That's true. So I think something like this should be added:

B4X:

For x=1 To 100
        Log(x)
        Sleep(100)
        If stop Then Exit
Next

Giusy · Mar 11, 2019

Erel said:
What happens inside this loop? Can you post the code?

Hi @Erel
I simplified the routine:

B4X:

Fox x = 1 to 10

  tts.speak(testo(x)

next

Erel · Mar 11, 2019

This code will complete in about 1ms. TTS.Speak is not a blocking call (with the exception of the deprecated modal dialogs, there are no blocking methods).

The correct answer is:

B4X:

Sub Button1_Click
 tts.Stop
End Sub

Giusy · Mar 11, 2019

Erel said:
This code will complete in about 1ms. TTS.Speak is not a blocking call (with the exception of the deprecated modal dialogs, there are no blocking methods).

The correct answer is:

B4X:

Sub Button1_Click tts.Stop End Sub

Thank you

Android Question For-Next-Exit

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