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.. include:: /header.rst
:github_url: |github_link_base|/widgets/spinner.md
Spinner (lv_spinner)
Overview
The Spinner object is a spinning arc over a border.
Parts and Styles
The Spinner uses the the following parts:
LV_SPINNER_PART_BG: main partLV_SPINNER_PART_INDIC: the spinning arc (virtual part)
The parts and style works the same as in case of Arc. Read its documentation for a details description.
Usage
Arc length
The length of the arc can be adjusted by lv_spinner_set_arc_length(spinner, deg).
Spinning speed
The speed of the spinning can be adjusted by lv_spinner_set_spin_time(preload, time_ms).
Spin types
You can choose from more spin types:
- LV_SPINNER_TYPE_SPINNING_ARC spin the arc, slow down on the top
- LV_SPINNER_TYPE_FILLSPIN_ARC spin the arc, slow down on the top but also stretch the arc
- LV_SPINNER_TYPE_CONSTANT_ARC spin the arc at a constant speed
To apply one if them use lv_spinner_set_type(preload, LV_SPINNER_TYPE_...)
Spin direction
The direction of spinning can be changed with lv_spinner_set_dir(preload, LV_SPINNER_DIR_FORWARD/BACKWARD).
Events
Only the Generic events are sent by the object type.
Keys
No Keys are processed by the object type.
Learn more about Keys.
Example
.. include:: /lv_examples/src/lv_ex_widgets/lv_ex_spinner/index.rst
MicroPython
No examples yet.
API
.. doxygenfile:: lv_spinner.h
:project: lvgl