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_button_is_root(menu, obj)) {
10 lv_obj_t * mbox1 = lv_msgbox_create(NULL);
11 lv_msgbox_add_title(mbox1, "Hello");
12 lv_msgbox_add_text(mbox1, "Root back btn click.");
13 lv_msgbox_add_close_button(mbox1);
14 }
15 }
16
lv_example_menu_2(void)17 void lv_example_menu_2(void)
18 {
19 lv_obj_t * menu = lv_menu_create(lv_screen_active());
20 lv_menu_set_mode_root_back_button(menu, LV_MENU_ROOT_BACK_BUTTON_ENABLED);
21 lv_obj_add_event_cb(menu, back_event_handler, LV_EVENT_CLICKED, menu);
22 lv_obj_set_size(menu, lv_display_get_horizontal_resolution(NULL), lv_display_get_vertical_resolution(NULL));
23 lv_obj_center(menu);
24
25 lv_obj_t * cont;
26 lv_obj_t * label;
27
28 /*Create a sub page*/
29 lv_obj_t * sub_page = lv_menu_page_create(menu, NULL);
30
31 cont = lv_menu_cont_create(sub_page);
32 label = lv_label_create(cont);
33 lv_label_set_text(label, "Hello, I am hiding here");
34
35 /*Create a main page*/
36 lv_obj_t * main_page = lv_menu_page_create(menu, NULL);
37
38 cont = lv_menu_cont_create(main_page);
39 label = lv_label_create(cont);
40 lv_label_set_text(label, "Item 1");
41
42 cont = lv_menu_cont_create(main_page);
43 label = lv_label_create(cont);
44 lv_label_set_text(label, "Item 2");
45
46 cont = lv_menu_cont_create(main_page);
47 label = lv_label_create(cont);
48 lv_label_set_text(label, "Item 3 (Click me!)");
49 lv_menu_set_load_page_event(menu, cont, sub_page);
50
51 lv_menu_set_page(menu, main_page);
52 }
53
54 #endif
55
