[BUG] The multilingual issue with the drop-down menu and the problem where the arrow icon in the drop-down menu is not displayed.

[WittXie]

[BUG] The multilingual issue with the drop-down menu and the problem where the arrow icon in the drop-down menu is not displayed.

symbol="img_home_down"  options="OFF
TEXT"

1. drop-down is no multilingual interface for translation_tag.
2. The symbol displays correctly in the editor’s preview, but it fails to render when downloaded onto the embedded device. Although we’ve also tried storing img_home_down as a file instead of in data format, it still doesn’t display properly.
3. The background of the dropdown state is always white and cannot be modified. I’ve tried all parameters with “bg” in their names, but none of them work.

[giobauermeister]

Hi @WittXie I can answer for the dropdown symbol bug.

Currently the Editor exports:
lv_dropdown_set_symbol(lv_dropdown_0, "img_dropdown");
But the correct exported code should be a pointer to the image:
lv_dropdown_set_symbol(lv_dropdown_0, img_dropdown);

This bug is already opened internally and the fix should be part of next releases.

About background styling here is an example:

<screen>
	<styles>
		<style name="style_dropdown" bg_color="0xff4d4d" />
		<style name="style_dropdown_list" bg_color="0x565cff" />
		<style name="style_dropdown_list_focus" bg_color="0x00ff6b" />
	</styles>

	<view>
		<lv_dropdown>
			<style name="style_dropdown" />
			<lv_dropdown-list>
				<style name="style_dropdown_list" />
				<style name="style_dropdown_list_focus" selector="selected|checked" />
			</lv_dropdown-list>
		</lv_dropdown>
	</view>
</screen>

It generates the following C code:

lv_obj_t * screen_main_create(void)
{
    LV_TRACE_OBJ_CREATE("begin");

    static lv_style_t style_dropdown;
    static lv_style_t style_dropdown_list;
    static lv_style_t style_dropdown_list_focus;

    static bool style_inited = false;

    if (!style_inited) {
        lv_style_init(&style_dropdown);
        lv_style_set_bg_color(&style_dropdown, lv_color_hex(0xff4d4d));

        lv_style_init(&style_dropdown_list);
        lv_style_set_bg_color(&style_dropdown_list, lv_color_hex(0x565cff));

        lv_style_init(&style_dropdown_list_focus);
        lv_style_set_bg_color(&style_dropdown_list_focus, lv_color_hex(0x00ff6b));

        style_inited = true;
    }

    lv_obj_t * lv_obj_0 = lv_obj_create(NULL);
    lv_obj_set_name_static(lv_obj_0, "screen_main_#");

    lv_obj_t * lv_dropdown_0 = lv_dropdown_create(lv_obj_0);
    lv_obj_add_style(lv_dropdown_0, &style_dropdown, 0);
    lv_obj_t * lv_dropdown_list_0 = lv_dropdown_get_list(lv_dropdown_0);
    lv_obj_add_style(lv_dropdown_list_0, &style_dropdown_list, 0);
    lv_obj_add_style(lv_dropdown_list_0, &style_dropdown_list_focus, LV_PART_SELECTED | LV_STATE_CHECKED);

    LV_TRACE_OBJ_CREATE("finished");

    return lv_obj_0;
}

@kisvegabor does dropdown support translation?

[linear]

from balint:

@gabor, as we define lv_dropdown options as this, I do not think, there is a translation tag support: `options="one
two
three"` Is this correct?

[linear]

from gabor:

It doesn't support translations now. We can add it in LVGL for some more widgets too (roller, tabview, checkbox, etc). cc @andre

[github-actions]

This issue has been inactive for 30 days.

[kisvegabor]

@AndreCostaaa or @axos88 can you add translation support for the drop-down?

[github-actions]

This issue has been inactive for 30 days.