line meter实现进度圈

void line_meter_task(lv_task_t* t)
{
    static uint8_t progress;
    lv_obj_t* lmeter = t->user_data;

    progress += 10;
    if (progress == 100)
    {
        progress = 0;
    }
    lv_lmeter_set_value(lmeter, progress);
}

void line_meter_demo(void)
{
    /*Create a style for the line meter*/
    static lv_style_t style_lmeter;
    lv_style_copy(&style_lmeter, &lv_style_pretty_color);
    style_lmeter.line.width = 4;
    style_lmeter.line.color = LV_COLOR_RED;
    style_lmeter.body.main_color = lv_color_hex(0x91bfed);
    style_lmeter.body.grad_color = lv_color_hex(0x04386c);
    style_lmeter.body.padding.left = 16;

    /*Create a line meter*/
    lv_obj_t* lmeter;
    lmeter = lv_lmeter_create(lv_scr_act(), NULL);
    lv_lmeter_set_range(lmeter, 0, 100);
    lv_lmeter_set_value(lmeter, 50);
    lv_lmeter_set_scale(lmeter, 360, 31);

    lv_lmeter_set_style(lmeter, LV_LMETER_STYLE_MAIN,&style_lmeter);
    lv_obj_set_size(lmeter, 150, 150);
    lv_obj_align(lmeter, NULL, LV_ALIGN_CENTER, 0, 0);
   
    lv_task_t* t = lv_task_create(line_meter_task, 200, LV_TASK_PRIO_MID, lmeter);
    lv_task_ready(t);

}