Spinner (lv_spinner)

Overview

The Spinner Widget is a spinning arc over a ring, typically used to show some type of activity is in progress.

Parts and Styles

Spinner's parts are identical to those of Arc.

Usage

Create a spinner

To create a spinner use lv_spinner_create(parent).

Use lv_spinner_set_anim_params(spinner, spin_duration, angle) to customize the duration of one revolution and the length of the arc.

Events

No special events are sent by Spinner Widgets.

Keys

No Keys are processed by Spinner Widgets.

Example

[中文]

Simple spinner

#include "../../lv_examples.h"
#if LV_USE_SPINNER && LV_BUILD_EXAMPLES

void lv_example_spinner_1(void)
{
    /*Create a spinner*/
    lv_obj_t * spinner = lv_spinner_create(lv_screen_active());
    lv_obj_set_size(spinner, 100, 100);
    lv_obj_center(spinner);
    lv_spinner_set_anim_params(spinner, 10000, 200);
}

#endif

API

lv_spinner.h