芯片启动到LVGL初始化完成大体流程如下:
界面增加打印后代码如下:
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);lv_coord_t x = lv_obj_get_x(obj) + vect.x;lv_coord_t y = lv_obj_get_y(obj) + vect.y;lv_obj_set_pos(obj, x, y);LOG_INFO(lvgl_example, "vect x:%d y:%d\r\n",vect.x,vect.y);
}/*** Make an object dragable.*/
void lv_example_obj_2(void)
{lv_obj_t * obj;obj = lv_obj_create(lv_scr_act());lv_obj_set_size(obj, 150, 100);lv_obj_add_event_cb(obj, drag_event_handler, LV_EVENT_PRESSING, NULL);lv_obj_t * label = lv_label_create(obj);lv_label_set_text(label, "Drag me");lv_obj_center(label);}
按下复位键到滑动屏幕打印如下:
[INFO] [lcd] lcd_init start
[INFO] [lcd] lcd_init ok
[INFO] [project] BLE Peripheral
[INFO] [project] Local BDADDR: 0x112233445566
[INFO] [project] All service added
[INFO] [project] Start advertising...
[INFO] [lvgl_demo] vect x:0 y:0
[INFO] [lvgl_demo] vect x:0 y:0
[INFO] [lvgl_demo] vect x:0 y:0
[INFO] [lvgl_demo] vect x:0 y:0
[INFO] [lvgl_demo] vect x:0 y:0
[INFO] [lvgl_demo] vect x:0 y:0
[INFO] [lvgl_demo] vect x:0 y:0
[INFO] [lvgl_demo] vect x:4 y:2
[INFO] [lvgl_demo] vect x:8 y:11
[INFO] [lvgl_demo] vect x:6 y:5
[INFO] [lvgl_demo] vect x:8 y:5
[INFO] [lvgl_demo] vect x:7 y:4
[INFO] [lvgl_demo] vect x:5 y:3
[INFO] [lvgl_demo] vect x:4 y:2
[INFO] [lvgl_demo] vect x:4 y:1
[INFO] [lvgl_demo] vect x:5 y:1
[INFO] [lvgl_demo] vect x:4 y:1
[INFO] [lvgl_demo] vect x:2 y:0
[INFO] [lvgl_demo] vect x:5 y:-1
[INFO] [lvgl_demo] vect x:1 y:0
[INFO] [lvgl_demo] vect x:0 y:-1
[INFO] [lvgl_demo] vect x:1 y:0
[INFO] [lvgl_demo] vect x:0 y:-1
[INFO] [lvgl_demo] vect x:-1 y:-1
验证平台事物图:
视频展示效果如下:
lvgl跟手控件效果