1 #include "../../lv_examples.h"
2 #if LV_USE_MENU && LV_USE_MSGBOX && LV_BUILD_EXAMPLES
3
back_event_handler(lv_event_t * e)4 static void back_event_handler(lv_event_t * e)
5 {
6 lv_obj_t * obj = lv_event_get_target(e);
7 lv_obj_t * menu = lv_event_get_user_data(e);
8
9 if(lv_menu_back_btn_is_root(menu, obj)) {
10 lv_obj_t * mbox1 = lv_msgbox_create(NULL, "Hello", "Root back btn click.", NULL, true);
11 lv_obj_center(mbox1);
12 }
13 }
14
lv_example_menu_2(void)15 void lv_example_menu_2(void)
16 {
17 lv_obj_t * menu = lv_menu_create(lv_scr_act());
18 lv_menu_set_mode_root_back_btn(menu, LV_MENU_ROOT_BACK_BTN_ENABLED);
19 lv_obj_add_event_cb(menu, back_event_handler, LV_EVENT_CLICKED, menu);
20 lv_obj_set_size(menu, lv_disp_get_hor_res(NULL), lv_disp_get_ver_res(NULL));
21 lv_obj_center(menu);
22
23 lv_obj_t * cont;
24 lv_obj_t * label;
25
26 /*Create a sub page*/
27 lv_obj_t * sub_page = lv_menu_page_create(menu, NULL);
28
29 cont = lv_menu_cont_create(sub_page);
30 label = lv_label_create(cont);
31 lv_label_set_text(label, "Hello, I am hiding here");
32
33 /*Create a main page*/
34 lv_obj_t * main_page = lv_menu_page_create(menu, NULL);
35
36 cont = lv_menu_cont_create(main_page);
37 label = lv_label_create(cont);
38 lv_label_set_text(label, "Item 1");
39
40 cont = lv_menu_cont_create(main_page);
41 label = lv_label_create(cont);
42 lv_label_set_text(label, "Item 2");
43
44 cont = lv_menu_cont_create(main_page);
45 label = lv_label_create(cont);
46 lv_label_set_text(label, "Item 3 (Click me!)");
47 lv_menu_set_load_page_event(menu, cont, sub_page);
48
49 lv_menu_set_page(menu, main_page);
50 }
51
52 #endif
53
