lv_sw.c: lv_sw_toggle_anim initial commit

lv_objx/lv_sw.c

@@ -189,6 +189,22 @@ void lv_sw_off_anim(lv_obj_t * sw)
     lv_slider_set_style(sw, LV_SLIDER_STYLE_KNOB, ext->style_knob_off);
 }
 
+/**
+ * Toggle the position of the switch with an animation
+ * @param sw pointer to a switch object
+ * @return resulting state of the switch.
+ */
+bool lv_sw_toggle_anim(lv_obj_t *sw) {
+    bool state = lv_sw_get_state(sw);
+    if(state) {
+        lv_sw_off_anim(sw);
+    }
+    else {
+        lv_sw_on_anim(sw);
+    }
+    return !state;
+}
+
 /**
  * Set a style of a switch
  * @param sw pointer to a switch object

lv_objx/lv_sw.h

@@ -107,6 +107,13 @@ void lv_sw_on_anim(lv_obj_t * sw);
  */
 void lv_sw_off_anim(lv_obj_t * sw);
 
+/**
+ * Toggle the position of the switch with an animation
+ * @param sw pointer to a switch object
+ * @return resulting state of the switch.
+ */
+bool lv_sw_toggle_anim(lv_obj_t *sw);
+
 /**
  * Set a function which will be called when the switch is toggled by the user
  * @param sw pointer to switch object