GUI GuiderのトピックRe: Text Area widget re-entry problem

Text Area widget re-entry problem

mitchkapa — Mon, 08 Aug 2022 16:47:55 GMT

I am having a problem with the Text Area Widget in my GUI. When the TA Widget is tapped for the first time the keyboard immediately opens. But once the keyboard has been closed (either with the keyboard button or check button) it is very difficult to get the keyboard to re-appear. It takes many touches of the TA Widget for the keyboard to come back. Perhaps the target touch area has been reduced to a very small target I haven't been able to tell that with certainty yet.

If I leave the screen with that TA Widget and return to it the first tap to bring up the keyboard always works. But again after the first time it is very difficult after that.

Re: Text Area widget re-entry problem

Alice_Yang — Tue, 09 Aug 2022 08:58:41 GMT

Hello mitchkapa,

Which chip do you used?

Alice

Re: Text Area widget re-entry problem

mitchkapa — Tue, 09 Aug 2022 12:57:14 GMT

I am using GUI Guider 1.4.0 -> LVGL v8.2.0 -> LPC54S018

I am able to recreate the problem with the Simulator (C) or running the code on my development board.

Re: Text Area widget re-entry problem

zhenhualuo — Thu, 11 Aug 2022 05:59:09 GMT

Hi mitchkapa,

Currently the keyboard will open when FOCUS event is triggered for TA, so you can click any area outside of TA and click TA area again to make keyboard appear. To open keyboard when clicking TA, please update ta_event_cb function to the following in setup_scr_screen.c.

static void ta_event_cb(lv_event_t *e)
{

lv_event_code_t code = lv_event_get_code(e);
lv_obj_t *ta = lv_event_get_target(e);
lv_obj_t *kb = lv_event_get_user_data(e);
if (code == LV_EVENT_FOCUSED || code == LV_EVENT_CLICKED)
{

lv_keyboard_set_textarea(kb, ta);
lv_obj_move_foreground(kb);
lv_obj_clear_flag(kb, LV_OBJ_FLAG_HIDDEN);

}
if (code == LV_EVENT_DEFOCUSED)
{

lv_keyboard_set_textarea(kb, NULL);
lv_obj_move_background(kb);
lv_obj_add_flag(kb, LV_OBJ_FLAG_HIDDEN);

}

Re: Text Area widget re-entry problem

mitchkapa — Thu, 11 Aug 2022 13:16:52 GMT

Thanks!