When is it not ok to call WatchUi.requestUpdate();?

Hi,

This one is a new one on me!

I saw an ERA log from onSettingsChanged that crashed out on my DataField onSettingsChanged handerl:

    function onSettingsChanged() {
        if(view) {
            view.onSettingsChanged();
            WatchUi.requestUpdate(); // CRASHES HERE
        }
    }

There is nothing contentious that I can see in onSettingsChanged (except a slightly annoying Attention.playTone that I had decided to remove on account of it being annoying in any case) - just some maths that is null checked, valid and safe.

So:

1. Is there any time that it is either illegal or unwise to call WatchUi.requestUpdate()

2. How does one test for that?

Thanks,
G

9635560

Parents

9635560 over 4 years ago

HI Travis, Had another one today. Pretty much identical code - line 26 is the requestUpdate call.

function onSettingsChanged() {
	if(mView) {	
		mView.onSettingsChanged();
		WatchUi.requestUpdate(); // @ CRASH IS HERE @
	}
	
}

Will do a find and replace across all my DF projects and remove that line.

Error Name: System Error
Occurrences: 1
First Occurrence: 2020-12-03
Last Occurrence: 2020-12-03
Devices:
    EdgeÂ® 520 Plus: 5.70
App Versions: 0.0.37
Languages: eng
Backtrace:
    DataField_SingleDialBaseApp.onSettingsChanged:26

Cheers, G

Comment

9635560 over 4 years ago

HI Travis, Had another one today. Pretty much identical code - line 26 is the requestUpdate call.

function onSettingsChanged() {
	if(mView) {	
		mView.onSettingsChanged();
		WatchUi.requestUpdate(); // @ CRASH IS HERE @
	}
	
}

Will do a find and replace across all my DF projects and remove that line.

Error Name: System Error
Occurrences: 1
First Occurrence: 2020-12-03
Last Occurrence: 2020-12-03
Devices:
    EdgeÂ® 520 Plus: 5.70
App Versions: 0.0.37
Languages: eng
Backtrace:
    DataField_SingleDialBaseApp.onSettingsChanged:26

Cheers, G

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