tetris first try

main/drivers/tft.cpp

@@ -13,6 +13,8 @@ static lv_color_t *lv_buf_2 = NULL;
 static lv_obj_t *meter = NULL;
 static lv_style_t style_screen;
 
+lv_obj_t* screen;
+
 static void update_meter_value(void *indic, int32_t v)
 {
     lv_meter_set_indicator_end_value(meter, (lv_meter_indicator_t*)indic, v);
@@ -152,18 +154,16 @@ static void initialize_lvgl() {
     esp_timer_handle_t lvgl_tick_timer = NULL;
     ESP_ERROR_CHECK(esp_timer_create(&lvgl_tick_timer_args, &lvgl_tick_timer));
     ESP_ERROR_CHECK(esp_timer_start_periodic(lvgl_tick_timer, LVGL_UPDATE_PERIOD_MS * 1000));
-}
 
-void create_demo_ui() {
-    lv_obj_t *scr = lv_disp_get_scr_act(NULL);
-
-    // Set the background color of the display to black.
+    screen = lv_disp_get_scr_act(NULL);
     lv_style_init(&style_screen);
     lv_style_set_bg_color(&style_screen, lv_color_black());
     lv_obj_add_style(lv_scr_act(), &style_screen, LV_STATE_DEFAULT);
+}
 
+void create_demo_ui() {
     // Create a meter which can be animated.
-    meter = lv_meter_create(scr);
+    meter = lv_meter_create(screen);
     lv_obj_center(meter);
     lv_obj_set_size(meter, 200, 200);
 

main/drivers/tft.h

@@ -62,6 +62,8 @@
 #define BACKLIGHT_LEDC_TIMER_RESOLUTION LEDC_TIMER_10_BIT
 #define BACKLIGHT_LEDC_FRQUENCY 5000
 
+extern lv_obj_t* screen;
+
 void create_demo_ui();
 void init_tft();