Change label.text but no Update

[kami83]

Hi,

i am changing the "label1.text" with this function, but on my view it is not updated? Can you tell me how to activate an update of the view?

Thanks a lot.

BR kami

` def swswitch (sender): if main['connectsw'].value == True:

        main['label1'].text = " Waiting..."
        #main.update()
        cb.scan_for_peripherals()
        count = time.time()
        
        while not mngr.peripheral and count >= time.time()-10: 
            
            pass
            
        if mngr.peripheral == None:
            main['label1'].text = " Device not found..."
            main['connectsw'].value = False
            cb.stop_scan()

    else:
        #v['viewbottom']['label1'].text = " Disconnected..."
        if mngr.peripheral != None:
            cb.cancel_peripheral_connection(mngr.peripheral)
    pass  

`

[cvpe]

Try

from objc_util import main_thread

@main_thread
def swswitch (sender):

[kami83]

Hi thanks but main_thread is Not defined. BR kami

[cvpe]

Sorry, my error

from objc_util import *

@on_main_thread

[kami83]

No Problem but now it is defined but no Update. 🫤

[cvpe]

Last try, instead of previous bad advice

@ui.in_background
def swswitch (sender):

[kami83]

Same Problem

[cvpe]

weird, sure that your code is executed, as it is in an "if", perhaps your could print something to confirm

[cvpe]

If you agree for a test more 🙄

@on_main_thread
def update_label(text):
	main['label1'].text = text

@ui.in_background
def swswitch (sender):
	if main['connectsw'].value == True:
		update_label("" Waiting...")
		...

[kami83]

Hi test failed 🫤

[cvpe]

I can't help more, sorry, you have to be sure that your code is executed. Put a print in the update_label def.

[kami83]

The Print command in def update_Label is executed but now the Label.text also with "device not found" is not updating. This works before.

[cvpe]

Sorry for you, hoping a Pythonista guru will help you. Do you use the beta version or the App Store version?

[cvpe]

It is normal that your original code was only displaying the last text of the label because your def is entirely executed before the label could be updated.

[kami83]

Okay but thanks a lot for your help. I am using the Beta.

[cvpe]

Perhaps is the beta the origin of the problem...