example: update example_lvgl_demo_ui prototype

examples/peripherals/lcd/i2c_oled/main/i2c_oled_example_main.c

@@ -38,7 +38,7 @@ static const char *TAG = "example";
 
 #define EXAMPLE_LVGL_TICK_PERIOD_MS    2
 
-extern void example_lvgl_demo_ui(lv_obj_t *scr);
+extern void example_lvgl_demo_ui(lv_disp_t *disp);
 
 static bool example_notify_lvgl_flush_ready(esp_lcd_panel_io_handle_t panel_io, esp_lcd_panel_io_event_data_t *edata, void *user_ctx)
 {
@@ -159,8 +159,7 @@ void app_main(void)
     ESP_ERROR_CHECK(esp_timer_start_periodic(lvgl_tick_timer, EXAMPLE_LVGL_TICK_PERIOD_MS * 1000));
 
     ESP_LOGI(TAG, "Display LVGL Scroll Text");
-    lv_obj_t *scr = lv_disp_get_scr_act(disp);
+    example_lvgl_demo_ui(disp);
-    example_lvgl_demo_ui(scr);
 
     while (1) {
         // raise the task priority of LVGL and/or reduce the handler period can improve the performance

examples/peripherals/lcd/i2c_oled/main/lvgl_demo_ui.c

@@ -6,8 +6,9 @@
 
 #include "lvgl.h"
 
-void example_lvgl_demo_ui(lv_obj_t *scr)
+void example_lvgl_demo_ui(lv_disp_t *disp)
 {
+    lv_obj_t *scr = lv_disp_get_scr_act(disp);
     lv_obj_t *label = lv_label_create(scr);
     lv_label_set_long_mode(label, LV_LABEL_LONG_SCROLL_CIRCULAR); /* Circular scroll */
     lv_label_set_text(label, "Hello Espressif, Hello LVGL.");

examples/peripherals/lcd/i80_controller/main/i80_controller_example_main.c

@@ -74,7 +74,7 @@ static const char *TAG = "example";
 // Supported alignment: 16, 32, 64. A higher alignment can enables higher burst transfer size, thus a higher i80 bus throughput.
 #define EXAMPLE_PSRAM_DATA_ALIGNMENT   64
 
-extern void example_lvgl_demo_ui(lv_obj_t *scr);
+extern void example_lvgl_demo_ui(lv_disp_t *disp);
 
 static bool example_notify_lvgl_flush_ready(esp_lcd_panel_io_handle_t panel_io, esp_lcd_panel_io_event_data_t *edata, void *user_ctx)
 {
@@ -268,8 +268,7 @@ void app_main(void)
     ESP_ERROR_CHECK(esp_timer_start_periodic(lvgl_tick_timer, EXAMPLE_LVGL_TICK_PERIOD_MS * 1000));
 
     ESP_LOGI(TAG, "Display LVGL animation");
-    lv_obj_t *scr = lv_disp_get_scr_act(disp);
+    example_lvgl_demo_ui(disp);
-    example_lvgl_demo_ui(scr);
 
     while (1) {
         // raise the task priority of LVGL and/or reduce the handler period can improve the performance

examples/peripherals/lcd/i80_controller/main/lvgl_demo_ui.c

@@ -74,8 +74,10 @@ static void anim_timer_cb(lv_timer_t *timer)
     }
 }
 
-void example_lvgl_demo_ui(lv_obj_t *scr)
+void example_lvgl_demo_ui(lv_disp_t *disp)
 {
+    lv_obj_t *scr = lv_disp_get_scr_act(disp);
+
     // Create image
     img_logo = lv_img_create(scr);
     lv_img_set_src(img_logo, &esp_logo);

examples/peripherals/lcd/rgb_panel/main/lvgl_demo_ui.c

@@ -39,8 +39,9 @@ static void add_data(lv_timer_t *timer)
     lv_chart_set_next_value2(chart, lv_chart_get_series_next(chart, NULL), lv_rand(0, 200), lv_rand(0, 1000));
 }
 
-void example_lvgl_demo_ui(lv_obj_t *scr)
+void example_lvgl_demo_ui(lv_disp_t *disp)
 {
+    lv_obj_t *scr = lv_disp_get_scr_act(disp);
     lv_obj_t *chart = lv_chart_create(scr);
     lv_obj_set_size(chart, 200, 150);
     lv_obj_align(chart, LV_ALIGN_CENTER, 0, 0);

examples/peripherals/lcd/rgb_panel/main/rgb_lcd_example_main.c

@@ -60,7 +60,7 @@ SemaphoreHandle_t sem_vsync_end;
 SemaphoreHandle_t sem_gui_ready;
 #endif
 
-extern void example_lvgl_demo_ui(lv_obj_t *scr);
+extern void example_lvgl_demo_ui(lv_disp_t *disp);
 
 static bool example_on_vsync_event(esp_lcd_panel_handle_t panel, const esp_lcd_rgb_panel_event_data_t *event_data, void *user_data)
 {
@@ -226,8 +226,7 @@ void app_main(void)
     ESP_ERROR_CHECK(esp_timer_start_periodic(lvgl_tick_timer, EXAMPLE_LVGL_TICK_PERIOD_MS * 1000));
 
     ESP_LOGI(TAG, "Display LVGL Scatter Chart");
-    lv_obj_t *scr = lv_disp_get_scr_act(disp);
+    example_lvgl_demo_ui(disp);
-    example_lvgl_demo_ui(scr);
 
     while (1) {
         // raise the task priority of LVGL and/or reduce the handler period can improve the performance

examples/peripherals/lcd/spi_lcd_touch/main/lvgl_demo_ui.c

@@ -27,8 +27,9 @@ static void btn_cb(lv_event_t * e)
     lv_disp_set_rotation(disp, rotation);
 }
 
-void example_lvgl_demo_ui(lv_disp_t *disp, lv_obj_t *scr)
+void example_lvgl_demo_ui(lv_disp_t *disp)
 {
+    lv_obj_t *scr = lv_disp_get_scr_act(disp);
     meter = lv_meter_create(scr);
     lv_obj_center(meter);
     lv_obj_set_size(meter, 200, 200);

examples/peripherals/lcd/spi_lcd_touch/main/spi_lcd_touch_example_main.c

@@ -66,7 +66,7 @@ static const char *TAG = "example";
 esp_lcd_touch_handle_t tp = NULL;
 #endif
 
-extern void example_lvgl_demo_ui(lv_disp_t *disp, lv_obj_t *scr);
+extern void example_lvgl_demo_ui(lv_disp_t *disp);
 
 static bool example_notify_lvgl_flush_ready(esp_lcd_panel_io_handle_t panel_io, esp_lcd_panel_io_event_data_t *edata, void *user_ctx)
 {
@@ -300,8 +300,7 @@ void app_main(void)
 #endif
 
     ESP_LOGI(TAG, "Display LVGL Meter Widget");
-    lv_obj_t *scr = lv_disp_get_scr_act(disp);
+    example_lvgl_demo_ui(disp);
-    example_lvgl_demo_ui(disp, scr);
 
     while (1) {
         // raise the task priority of LVGL and/or reduce the handler period can improve the performance