How to disable animation for switch

How-to
1

Hello, I have some “flickering” at moment.

For exemple the slider go to left when I redraw the page.
For slider I have disabled this using

lv_slider_set_value(slider, SelectedDevice->level, LV_ANIM_OFF);

But how to do for switch ?

On old version there was the fonction
void lv_switch_on(lv_obj_t *sw, lv_anim_enable_t anim)

But this one is deprecated for
lv_obj_add_state(sw, LV_STATE_CHECKED);

But without the Anim option.

anim – LV_ANIM_ON: set the value with an animation; LV_ANIM_OFF: change the value immediately

2

Hi

Try this:

lv_obj_set_style_anim_duration(switch_test, 0, LV_PART_MAIN);

Should disable the animation.

3

Undefined fonction.

I m still on 8.3.9, I need to update the project to test it, will take time …

4

Ok, so there is too much missing stuff in V9 compared to V8.

So I return to V8, no one have a similar fonction that can work on V8 ?

5

@Smanar, try to use

lv_obj_set_style_anim_time(switch_test, 0, LV_PART_MAIN)

If I’m not mistaken, move the animation time to zero, the animation will not execute.

6

Ha nice.
It haven’t worked (have tried with other values, it have no impact) but your link is so usefull.

    if(LV_SWITCH_IS_ANIMATING(sw)) {
        /* Use the animation's coordinate */
        anim_value_x = (anim_length * sw->anim_state) / LV_SWITCH_ANIM_STATE_END;
    }
    else {
        /* Use LV_STATE_CHECKED to decide the coordinate */
        bool chk = lv_obj_get_state(obj) & LV_STATE_CHECKED;
        anim_value_x = chk ? anim_length : 0;
    }

And there is no way to set (sw)->anim_state.

So I think it’s just not possible to disable, the code draw the device in position 0 and after in good position.