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Description
I run lv_keyboard but when I click the keyboard it doesn’t print anything on the textarea . Can anyone tell me why???
What MCU/Processor/Board and compiler are you using?
LVGL simulator (Visual Studio)
What LVGL version are you using?
7.9.1
What do you want to achieve?
Print a character when I click the keyboard.
What have you tried so far?
Code to reproduce
Add a code snippet which can run in the simulator. It should contain only the relevant code that compiles without errors when separated from your main code base.
The code block(s) should be formatted like:
#include "../../../lv_examples.h"
#include <stdio.h>
#define LV_IMG_DECLARE(var_name) extern const lv_img_dsc_t var_name;
static void kb_create(void);
static void ta_event_cb(lv_obj_t* ta, lv_event_t event);
static void signal_speed_create(void);
static const char* btn_map[] = { "Back", "Home", "Menu","" };
static lv_obj_t* kb;
static lv_obj_t* ta;
void lv_test_btnmatrix()
{
lv_obj_t* btnm1 = lv_btnmatrix_create(lv_scr_act(), NULL);
lv_btnmatrix_set_map(btnm1, btn_map);
lv_obj_align(btnm1, NULL, LV_ALIGN_IN_BOTTOM_MID, 0, 0);
lv_obj_t* signal = lv_label_create(lv_scr_act(), NULL);
lv_label_set_text(signal, LV_SYMBOL_WIFI);
lv_obj_align(signal, NULL, LV_ALIGN_IN_TOP_LEFT, 0, 0);
lv_obj_t* battery = lv_label_create(lv_scr_act(), NULL);
lv_label_set_text(battery, LV_SYMBOL_BATTERY_FULL);
lv_obj_align(battery, NULL, LV_ALIGN_IN_TOP_RIGHT, 0, 0);
lv_obj_t* clock = lv_label_create(lv_scr_act(), NULL);
lv_label_set_text(clock, "17:00");
lv_obj_align(clock, NULL, LV_ALIGN_IN_TOP_MID, 0, 0);
lv_obj_t* ID = lv_label_create(lv_scr_act(), NULL);
lv_label_set_text(ID, "101");
lv_obj_align(ID, battery, LV_ALIGN_IN_TOP_RIGHT, 0, 20);
signal_speed_create();
}
static void kb_create(void)
{
/*Create the custom map for the keyboard*/
static const char* kb_map[] = {
"1", "2", "3",LV_SYMBOL_BACKSPACE,"\n",
"4", "5", "6",LV_SYMBOL_CLOSE,"\n",
"7", "8", "9"," ","\n",
"0", LV_SYMBOL_LEFT, LV_SYMBOL_RIGHT," ",""
};
static const lv_btnmatrix_ctrl_t kb_ctrl[] = {
LV_BTNMATRIX_CTRL_NO_REPEAT, LV_BTNMATRIX_CTRL_NO_REPEAT, LV_BTNMATRIX_CTRL_NO_REPEAT, LV_BTNMATRIX_CTRL_NO_REPEAT,
LV_BTNMATRIX_CTRL_NO_REPEAT, LV_BTNMATRIX_CTRL_NO_REPEAT, LV_BTNMATRIX_CTRL_NO_REPEAT, LV_BTNMATRIX_CTRL_NO_REPEAT,
LV_BTNMATRIX_CTRL_NO_REPEAT, LV_BTNMATRIX_CTRL_NO_REPEAT, LV_BTNMATRIX_CTRL_NO_REPEAT, LV_BTNMATRIX_CTRL_HIDDEN,
LV_BTNMATRIX_CTRL_NO_REPEAT, LV_BTNMATRIX_CTRL_NO_REPEAT, LV_BTNMATRIX_CTRL_NO_REPEAT, LV_BTNMATRIX_CTRL_HIDDEN
};
/* Create a keyboard*/
kb = lv_keyboard_create(lv_scr_act(), NULL);
lv_obj_set_size(kb, LV_HOR_RES/2, LV_VER_RES / 3);
lv_obj_align(kb, NULL, LV_ALIGN_IN_BOTTOM_MID, 0, 0);
lv_keyboard_set_mode(kb, LV_KEYBOARD_MODE_NUM);
lv_keyboard_set_map(kb, LV_KEYBOARD_MODE_NUM, kb_map);
lv_keyboard_set_ctrl_map(kb, LV_KEYBOARD_MODE_NUM, kb_ctrl);
lv_keyboard_set_textarea(kb, ta);
}
static void ta_event_cb(lv_obj_t* ta, lv_event_t event)
{
if (event == LV_EVENT_CLICKED) {
kb_create();
}
}
static void signal_speed_create(void)
{
/*Create the text area*/
lv_obj_t* ta = lv_textarea_create(lv_scr_act(), NULL);
lv_obj_set_event_cb(ta, ta_event_cb);
lv_textarea_set_accepted_chars(ta, "0123456789");
lv_textarea_set_one_line(ta, true);
lv_textarea_set_text(ta, "");
lv_obj_align(ta, NULL, LV_ALIGN_CENTER, 0, 0);
}
Thanks,
Best regards,