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showToast displays wrong string in simulator

flocsy🤠
15 hours ago

I added a showToast to my app to help me debugging. I only use showToast in this one place in my app:

        if (WatchUi has :showToast) {
            WatchUi.showToast("onPhone", null);
        }

and a little but "later" in the code I log something:

        log("deleteTrack");

the string "deleteTrack" only appears in this one place in my code.

log is basically calling:

function log(msg as String) as Void {
    System.println(msg);
}

But for some reason this is what I see in the simulator on fr955:

Interesting. Looks like some compiler and/or simulator memory reference bug.

What's even more interesting is if I add a breakpoint somewhere after the call to showToast and before the use of the "deleteTrack" string then I see the correct string being displayed.

  • 11 hours ago

    In the sim, is it only the 955?  What happens on a real device?  Is a 3rd party optimizer involved?

  • 7 hours ago in reply to jim_m_58

    In the sim it happens to all the devices I tried (fr955, fr965, ee2). Both with SDK 7.4.3 and 8.0.0-Beta. No 3rd party optimizer.

    Regarding real device I don't know. Partially because the reason I added the toast is to help debugging something that works in the sim and doesn't (always) work on real device.

  • 6 hours ago in reply to flocsy🤠

    You want to try the real device, some things have never worked exactly the same in the sim as they do on all the real devices, especially those that use a native view.  The first was "Menu" way back when. as well as Menu2, MapView,  MapTrackView, and if I recall, ActionMenu

  • 2 hours ago

    Yeah, clearly there is a bug here.

    I tried the same thing in the simulator with a complex data field (fr955):

    // WatchUi.showToast("foobar", null);
    WatchUi.showToast(Rez.Strings.AppName, null);

    It doesn't matter what I pass for the first argument, the text for the toast displayed by the simulator is usually a string literal from somewhere else in my code. Interestingly, if I switch away from the simulator (using CMD-TAB on Mac), then switch back, sometimes the correct string is displayed very briefly.

    This works fine on a real device (fr955), so I'd guess it's a bug in the sim, not the compiler.

    I think this merits a bug report.

    jim_m_58 said:
    You want to try the real device, some things have never worked exactly the same in the sim as they do on all the real devices, especially those that use a native view.  The first was "Menu" way back when. as well as Menu2, MapView,  MapTrackView, and if I recall, ActionMenu

    There's a difference between the simulator being cosmetically different than the real device, and the simulator doing something completely wrong (displaying the wrong value).