example: add non-null judgment to lv_example_obj_2 (#2799)

2021-11-12 18:00:48 +08:00
parent b279f63d6b
commit ab544696dc
1 changed files with 2 additions and 0 deletions
--- a/examples/widgets/obj/lv_example_obj_2.c
+++ b/examples/widgets/obj/lv_example_obj_2.c
@@ -6,6 +6,8 @@ static void drag_event_handler(lv_event_t * e)
    lv_obj_t * obj = lv_event_get_target(e);

    lv_indev_t * indev = lv_indev_get_act();
+    if(indev == NULL)  return;
+
    lv_point_t vect;
    lv_indev_get_vect(indev, &vect);