How to set and change button focus on MsgBox, using hardware buttons

How to
1

What do you want to achieve?

What have you tried so far?

I create a MsgBox and display it on the screen. How to set the initial focus to a button? How to change the focus of the button, if the button is pressed?

Screenshot or video

Others

  • SquareLine Studio version: v8.3.9
  • Operating system: Windows 10 Pro
  • Target hardware: Intel(R) Core™ i7-9700

Code:

void CreateMsgBoxSet(void)
{
    
static const char* btns[] = { "Yes", "No", "" };
    mboxSet = lv_msgbox_create(NULL, NULL, "Confirm selection.", btns, NULL);
    lv_obj_set_style_text_font(mboxSet, &lv_font_montserrat_26, LV_PART_MAIN| LV_STATE_DEFAULT);

    lv_obj_set_style_bg_color(mboxSet, lv_palette_main(LV_PALETTE_BLUE_GREY), LV_PART_MAIN);
    lv_obj_add_event_cb(mboxSet, event_cbMsgBox, LV_EVENT_ALL, NULL);
    lv_obj_align(mboxSet, LV_ALIGN_CENTER, 0, 0);
    lv_group_add_obj(g, mboxSet);
}
2

We hope we got your intention correctly. For what you want to achieve (getting focus on pressed button) this code-snippet might give some idea:
lv_btnmatrix_set_selected_btn(lv_msgbox_get_btns(mboxSet), 1);

(As for the hardware-buttons you may check the ‘groups’ section of LVGL documentation. Or if that doesn’t answer your question please explain how hardware buttons are involved in your situation.)

3

This account is inactive for me. We describe the problem in detail here: