squareline studio ebike 예제 screen 전환

누르면 살며시 화면이 바귀는데 fade on으로 되어있고

어쩌면 의외로 간단하게(?) lv_screen_load_anim 이라는 애니메이션 관련 lvgl 함수로 처리한다.

/////////////////// ui_Home.c void ui_event_BTN_Settings(lv_event_t * e) {     lv_event_code_t event_code = lv_event_get_code(e);     if(event_code == LV_EVENT_CLICKED) {         _ui_screen_change(&ui_Settings, LV_SCR_LOAD_ANIM_FADE_ON, 100, 0, &ui_Settings_screen_init);     } } void ui_Home_screen_init(void) {     ui_Home = lv_obj_create(NULL);     lv_obj_remove_flag(ui_Home, LV_OBJ_FLAG_SCROLLABLE);      /// Flags     lv_obj_set_style_bg_color(ui_Home, lv_color_hex(0xFFFFFF), LV_PART_MAIN | LV_STATE_DEFAULT);     lv_obj_set_style_bg_opa(ui_Home, 0, LV_PART_MAIN | LV_STATE_DEFAULT);     /// 많이 생략 ///     lv_obj_add_event_cb(ui_BTN_Settings, ui_event_BTN_Settings, LV_EVENT_ALL, NULL); } /////////////////// ui_helpers.c void _ui_screen_change(lv_obj_t ** target, lv_screen_load_anim_t fademode, int spd, int delay,                        void (*target_init)(void)) {     if(*target == NULL)         target_init();     lv_screen_load_anim(*target, fademode, spd, delay, false); }

 

[링크 : https://docs.lvgl.io/master/API/display/lv_display_h.html#_CPPv419lv_screen_load_animP8lv_obj_t21lv_screen_load_anim_t8uint32_t8uint32_tb]