init Files

libraries/lvgl/examples/widgets/menu/lv_example_menu_2.c

@@ -0,0 +1,54 @@
+#include "../../lv_examples.h"
+#if LV_USE_MENU && LV_USE_MSGBOX && LV_BUILD_EXAMPLES
+
+static void back_event_handler(lv_event_t * e)
+{
+    lv_obj_t * obj = lv_event_get_target(e);
+    lv_obj_t * menu = lv_event_get_user_data(e);
+
+    if(lv_menu_back_button_is_root(menu, obj)) {
+        lv_obj_t * mbox1 = lv_msgbox_create(NULL);
+        lv_msgbox_add_title(mbox1, "Hello");
+        lv_msgbox_add_text(mbox1, "Root back btn click.");
+        lv_msgbox_add_close_button(mbox1);
+    }
+}
+
+void lv_example_menu_2(void)
+{
+    lv_obj_t * menu = lv_menu_create(lv_screen_active());
+    lv_menu_set_mode_root_back_button(menu, LV_MENU_ROOT_BACK_BUTTON_ENABLED);
+    lv_obj_add_event_cb(menu, back_event_handler, LV_EVENT_CLICKED, menu);
+    lv_obj_set_size(menu, lv_display_get_horizontal_resolution(NULL), lv_display_get_vertical_resolution(NULL));
+    lv_obj_center(menu);
+
+    lv_obj_t * cont;
+    lv_obj_t * label;
+
+    /*Create a sub page*/
+    lv_obj_t * sub_page = lv_menu_page_create(menu, NULL);
+
+    cont = lv_menu_cont_create(sub_page);
+    label = lv_label_create(cont);
+    lv_label_set_text(label, "Hello, I am hiding here");
+
+    /*Create a main page*/
+    lv_obj_t * main_page = lv_menu_page_create(menu, NULL);
+
+    cont = lv_menu_cont_create(main_page);
+    label = lv_label_create(cont);
+    lv_label_set_text(label, "Item 1");
+
+    cont = lv_menu_cont_create(main_page);
+    label = lv_label_create(cont);
+    lv_label_set_text(label, "Item 2");
+
+    cont = lv_menu_cont_create(main_page);
+    label = lv_label_create(cont);
+    lv_label_set_text(label, "Item 3 (Click me!)");
+    lv_menu_set_load_page_event(menu, cont, sub_page);
+
+    lv_menu_set_page(menu, main_page);
+}
+
+#endif