B4J Question Refresh UI while running step by step (F8)

[LucaMs]

Question from a newbie who has been using B4J for many years, but I have not found an answer.
When you run the step-by-step project, pressing F8, the graphic instructions are not applied immediately, the form is not updated.
Is there a way to do it?

 

[teddybear]

I don't quite understand, but I can step in it to refresh UI with a basic UI project.

 

[LucaMs]

I don't quite understand, but I can step in it to refresh UI with a basic UI project.

First: as you can see, the dialog is empty until "End Sub" is executed.
Also, that is a special case, just because it is a MsgBoxAsync.

Try so:

Sub Button1_Click
    xui.MsgboxAsync("Hello World!", "B4X")

    Button1.Left = 200
    Log("LucaMs is really stupid; it is evident from the questions he posts.")
End Sub

 

[LucaMs]

Try so:

There is also a bug: the button returns to its original position!

 

[EnriqueGonzalez]

B4j UI threads are always updated last and they are not even ordered FiFo.

They will be enqueued and once all other processes finish then UI thread will be updated on no particular order.

 

[LucaMs]

B4j UI threads are always updated last and they are not even ordered FiFo.

They will be enqueued and once all other processes finish then UI thread will be updated on no particular order.

Thank you for the information, but what I was asking is if there is a solution, because in this way the debugging of the graphics is difficult, at most you can use log commands.

Maybe a MyForm.Refresh, implemented by Erel?

Only now I also noticed that bug, the button that returns to its original position.

I have not used VB Net for a long time (too heavy for my ancient PC) and I do not remember if it also has this problem.

 

[teddybear]

There is also a bug: the button returns to its original position!

I don't think it is a bug. if you don't handle resize event, it will stay at the original position.

 

[LucaMs]

I don't think it is a bug. if you don't handle resize event, it will stay at the original position.

It has nothing to do with it.

 

[LucaMs]

Maybe a MyForm.Refresh, implemented by Erel?

He is not interested in this topic

 

[LucaMs]

In this way:

Sub Button1_Click
 Log("stop")
 xui.MsgboxAsync("Hello World!", "B4X")

 Button1.Left = 200
 Sleep(300)
 Log("LucaMs is really stupid; it is evident from the questions he posts.")
End Sub

by putting breakpoints on the Log lines, executing the instruction with the msgbox by pressing F8 and then F5, at the next break the button actually goes to x 200 (but you struggle to find the form on the Desktop).
The fact remains that then the button returns to its initial position.

 

[teddybear]

The fact remains that then the button returns to its initial position.

As I said, the handle resize event of the MainForm is checked as default in Visual Designer. if you would not like to return to its initial position. either you can cancel the checked in Visual Designer or handle it in resize event

 

[LucaMs]

As I said, the handle resize event of the MainForm is checked as default in Visual Designer. if you would not like to return to its initial position. either you can cancel the checked in Visual Designer or handle it in resize event

It looks like this but it makes no sense. The layout should adjust automatically, having that setting set to True, but if you THEN move a View from code, it should stay in the new position.

The initial question remains, which I consider important.

 

[EnriqueGonzalez]

Thank you for the information, but what I was asking is if there is a solution, because in this way the debugging of the graphics is difficult, at most you can use log commands.

Maybe a MyForm.Refresh, implemented by Erel?

Debugging the graphics is the incorrect approach, A refresh won't fix the underlying technology. it was build that way. you won't get any UI update because the debugger pauses all the threads.

have not used VB Net for a long time

Vb.net is based on winforms and b4x is based on javafx, they are not even close to make a comparison.

 

[LucaMs]

Debugging the graphics is the incorrect approach, A refresh won't fix the underlying technology

Now I need to debug the graphics; why should I consider it "wrong"?

Vb.net is based on winforms and b4x is based on javafx, they are not even close to make a comparison.

Wow, this is new for me (sorry, but I "live"here from 2013, I know "something").

The fact that using the following "snippet" the label is visible in the new position, demonstrates that an intervention in the B4J source could work.

In this way:

Sub Button1_Click
 Log("stop")
 xui.MsgboxAsync("Hello World!", "B4X")

 Button1.Left = 200
 Sleep(300)
 Log("LucaMs is really stupid; it is evident from the questions he posts.")
End Sub

by putting breakpoints on the Log lines, executing the instruction with the msgbox by pressing F8 and then F5, at the next break the button actually goes to x 200 (but you struggle to find the form on the Desktop).
The fact remains that then the button returns to its initial position.

 

[teddybear]

The layout should adjust automatically

It is not that you think of, if no resize event of the designer, move a View from code, it should stay in the new position.

 

[LucaMs]

It is not that you think of, if no resize event of the designer, move a View from code, it should stay in the new position.

I'll stop answering, you (both) have pissed me off.
Today is not exactly a day where I have patience.

If Erel can and wants to improve this, fine, otherwise I'll get over it.

 

[MicroDrie]

Have try to force a refresh with sleep(0)?

 

[LucaMs]

Have try to force a refresh with sleep(0)?

In this way:

Sub Button1_Click
 Log("stop")
 xui.MsgboxAsync("Hello World!", "B4X")

 Button1.Left = 200
 Sleep(300)
 Log("LucaMs is really stupid; it is evident from the questions he posts.")
End Sub

by putting breakpoints on the Log lines, executing the instruction with the msgbox by pressing F8 and then F5, at the next break the button actually goes to x 200 (but you struggle to find the form on the Desktop).
The fact remains that then the button returns to its initial position.