Merge pull request #5240 from mysterywolf/lvgl

[stm32l475][lvgl]update lv_demo.c

bsp/stm32/stm32l475-atk-pandora/board/ports/lvgl/lv_demo.c

@@ -26,7 +26,7 @@
 static void event_handler(lv_event_t * e)
 {
     lv_event_code_t code = lv_event_get_code(e);
-    lv_obj_t * obj = lv_event_get_target(e);
+    lv_obj_t * obj = lv_event_get_current_target(e);
 
     if(code == LV_EVENT_VALUE_CHANGED) {
         lv_calendar_date_t date;
@@ -40,7 +40,7 @@ void lv_example_calendar_1(void)
 {
     lv_obj_t  * calendar = lv_calendar_create(lv_scr_act());
     lv_obj_set_size(calendar, LCD_W, LCD_H);
-    lv_obj_align(calendar, LV_ALIGN_CENTER, 0, 60);
+    lv_obj_align(calendar, LV_ALIGN_CENTER, 0, 0);
     lv_obj_add_event_cb(calendar, event_handler, LV_EVENT_ALL, NULL);
 
     lv_calendar_set_today_date(calendar, 2021, 02, 23);
@@ -63,10 +63,11 @@ void lv_example_calendar_1(void)
     lv_calendar_set_highlighted_dates(calendar, highlighted_days, 3);
 
 #if LV_USE_CALENDAR_HEADER_DROPDOWN
-    lv_calendar_header_dropdown_create(lv_scr_act(), calendar);
+    lv_calendar_header_dropdown_create(calendar);
 #elif LV_USE_CALENDAR_HEADER_ARROW
-    lv_calendar_header_arrow_create(lv_scr_act(), calendar, 25);
+    lv_calendar_header_arrow_create(calendar);
 #endif
+    lv_calendar_set_showed_date(calendar, 2021, 10);
 }
 
 static void lvgl_thread(void *parameter)