lv_qrcode colors ignored when data attribute is declared before light_color/dark_color in XML

[julian-0]

When using <lv_qrcode> in LVGL Pro XML, the light_color and dark_color attributes are silently ignored if they appear after the data attribute in the XML. The QR code always renders in default black & white.

<lv_qrcode data="https://google.com/" light_color="0xff0000" dark_color="0x00ff05" />

Result:

<lv_qrcode light_color="0xff0000" dark_color="0x00ff05" data="https://google.com/" />

Result:

I think the cause is that the code generator emits calls in XML attribute declaration order. Since lv_qrcode_set_data() internally calls lv_qrcode_update() (which renders immediately), any lv_qrcode_set_light_color() / lv_qrcode_set_dark_color() calls that follow have no visible effect.

Lvgl Editor version 1.1.1
LVGL version: 9.5.0

[richardgazdik]

Thank you for the report. @kisvegabor, do you have any ideas about what might be the problem here?

[laszlobalint]

CC: @kisvegabor

[github-actions]

This issue has been inactive for 30 days.

[laszlobalint]

@AndreCostaaa @kisvegabor Can one of you guys take a look?

[kisvegabor]

I confirm that the order really matters here. We can need to fix it in LVGL. @axos88 can you take care of it?