1 #include "../../lv_examples.h"
2 #if LV_USE_TEXTAREA && LV_BUILD_EXAMPLES
3
textarea_event_handler(lv_event_t * e)4 static void textarea_event_handler(lv_event_t * e)
5 {
6 lv_obj_t * ta = lv_event_get_target(e);
7 LV_LOG_USER("Enter was pressed. The current text is: %s", lv_textarea_get_text(ta));
8 }
9
btnm_event_handler(lv_event_t * e)10 static void btnm_event_handler(lv_event_t * e)
11 {
12 lv_obj_t * obj = lv_event_get_target(e);
13 lv_obj_t * ta = lv_event_get_user_data(e);
14 const char * txt = lv_btnmatrix_get_btn_text(obj, lv_btnmatrix_get_selected_btn(obj));
15
16 if(strcmp(txt, LV_SYMBOL_BACKSPACE) == 0) lv_textarea_del_char(ta);
17 else if(strcmp(txt, LV_SYMBOL_NEW_LINE) == 0) lv_event_send(ta, LV_EVENT_READY, NULL);
18 else lv_textarea_add_text(ta, txt);
19
20 }
21
lv_example_textarea_1(void)22 void lv_example_textarea_1(void)
23 {
24 lv_obj_t * ta = lv_textarea_create(lv_scr_act());
25 lv_textarea_set_one_line(ta, true);
26 lv_obj_align(ta, LV_ALIGN_TOP_MID, 0, 10);
27 lv_obj_add_event_cb(ta, textarea_event_handler, LV_EVENT_READY, ta);
28 lv_obj_add_state(ta, LV_STATE_FOCUSED); /*To be sure the cursor is visible*/
29
30 static const char * btnm_map[] = {"1", "2", "3", "\n",
31 "4", "5", "6", "\n",
32 "7", "8", "9", "\n",
33 LV_SYMBOL_BACKSPACE, "0", LV_SYMBOL_NEW_LINE, ""
34 };
35
36 lv_obj_t * btnm = lv_btnmatrix_create(lv_scr_act());
37 lv_obj_set_size(btnm, 200, 150);
38 lv_obj_align(btnm, LV_ALIGN_BOTTOM_MID, 0, -10);
39 lv_obj_add_event_cb(btnm, btnm_event_handler, LV_EVENT_VALUE_CHANGED, ta);
40 lv_obj_clear_flag(btnm, LV_OBJ_FLAG_CLICK_FOCUSABLE); /*To keep the text area focused on button clicks*/
41 lv_btnmatrix_set_map(btnm, btnm_map);
42 }
43
44 #endif
45
