How to change the background color of the basic screen

Kay-Linnnn · November 28, 2019, 6:29am

Description

I tried the different theme and it works, but I can’t change the color of basic screen,it always be WHITE background, only objects changed, how can i change the color of background? It seems that there is some special setting for screen.

What MCU/Processor/Board and compiler are you using?

STM32F103 & Keil

What do you experience?

I learned from the tutorial about changeing theme, the night theme is ok to me, so i tried the templ theme and add all the initiation code to those function, but that’s for basic objects like btn, label, liss, so which one work for screen?

What do you expect?

Changeing the background color of screen

Code to reproduce

/You code here/
lv_theme_t * th = lv_theme_templ_init(0, NULL);

/*Set the surent system theme*/
lv_theme_set_current(th);

Screenshot and/or video

Kay-Linnnn · November 28, 2019, 6:59am

Hey, I figured it out, there is a “scr” for theme structure, change it and it works.

momosh13 · December 28, 2019, 6:13am

Hi,
What I need change over there to get a black background?

Thanks.

TridentTD · December 28, 2019, 12:06pm

Another method.

create a style
set the style to lv_scr_act() by lv_obj_set_style(..)

momosh13 · December 30, 2019, 8:34am

Hi Kay-Linnnn
Please tell me, &scr change it to what ?
Thank you

embeddedt · December 30, 2019, 4:07pm

scr refers to an lv_style_t.

Kay-Linnnn · December 31, 2019, 7:54am

Hey,like this, chech your lv_theme_templ.c file, there is a “basic_init” function, add the detail style to scr like the screenshot shows, then it will work.