B4J Question Main Form's Views Freeze while control is passed to a module's routine

[Christos Dorotheou]

Dear All,

I have a timer and a Label on my Main Form, which serves as an indicator to the user of how long
a specific process needs to complete.

Unfortunately when I call this process which by the way is doing some data analyzing and processing
the label which is supposed to display time passed in seconds since the process began, does not
update during the process and instead is updated when the process is complete.

Thanks in advance

 

[Erel]

The problem is that the main thread is occupied with the data analyzing. Can you post the data analyzing code?

 

[Christos Dorotheou]

The problem is that the main thread is occupied with the data analyzing. Can you post the data analyzing code?

I've uploaded an example in which I am trying to simulate the problem I have.

In this example the Main module calls alternatively 2 routines, where in one case the views (Labels and Textarea) are updating ok
and in the other case they are updated when the routine passes the control back to the Main module.

Thanks

 

[Erel]

The UI will be updated when the main thread is free to process the internal message queue. If you are using a timer to split the work then it will be able to process the message queue.

 

[Christos Dorotheou]

The UI will be updated when the main thread is free to process the internal message queue. If you are using a timer to split the work then it will be able to process the message queue.

Thanks for the reply.

Is it posiible to call from my Main B4J Application a separate thread (Service or B4J application), in which all the data processing will take place and it would also contain a timer which on every timer_tick will erase an event that can be captured and interpreted accordingly, by the Main Application ?

I hope I've made my self clear.

Regards Chris

 

[Erel]

Agrahams Threading library works with B4J as well: Threading library

You can use it to run code on another thread. Though unless you are doing a very heavy data processing it should be possible to do it on the main thread (which will be much simpler).

 

[Christos Dorotheou]

Agrahams Threading library works with B4J as well: Threading library

You can use it to run code on another thread. Though unless you are doing a very heavy data processing it should be possible to do it on the main thread (which will be much simpler).

Thanks Erel,

I will take your advice for it and try to rewrite the code.