How to change Drop-down list hight?

How-to
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1

My gui tool is NXP GUI Guider.
i drag Drop-down list, but it hight is disable.(it means auto).
can i change it height by edit lvgl file .h or .c?

j change it hight by set style max_hight, but it not work!

In NXP GUI Guider edit mode and run mode, the size is not the same…

DDDD
DDDD892×548 29.2 KB

in lvgl v8.2,
the drop down list scroll will cause ghost like this.

IMG_20220616_101752
IMG_20220616_1017522192×1872 1.96 MB

IMG_20220616_101759
IMG_20220616_1017592392×2736 3.27 MB

it’s a bug?

2

You can try lv_obj_set_height() to set the height.

3

i use this lv_obj_set_height.
it work, but the text not in center…

IMG_20220616_103002
IMG_20220616_1030022448×2008 2.31 MB

4

I think that is because the padding is set by default, try to reduce the padding by the following code:

    lv_obj_set_style_pad_top(dropdown, 2, 0);
    lv_obj_set_style_pad_bottom(dropdown, 2, 0);