jimeixuehua/lv_examples

Examples, tutorials and applications for the LittlevGL embedded GUI library

Examples for Littlev Graphics Library

LittlevGL is a free and open-source graphics library providing everything you need to create a Graphical User Interface (GUI) on embedded systems with easy-to-use graphical elements, beautiful visual effects and low memory footprint.

GitHub: https://github.com/littlevgl/lvgl Website: https://littlevgl.com

Add the examples to your projects

1. Clone this repository: git clone https://github.com/littlevgl/lv_examples.git or download from the Download page. To always use the newest version the cloning is recommended.
2. The lv_examples directory should be next to the lvgl directory in your project.

Similary to lv_conf.h there is a configuration file for the examples too. It is called lv_ex_conf.h.

1. Copy lv_examples/lv_ex-conf_templ.h next to lv_examples directory
2. Rename is to lv_ex_conf.h
3. Delete the first #if and last #endif to enable the file's content
4. Enable or Disable modules

Tutorial

A step-by-step guide to teach the most important parts of the Graphics Library.

• Hello world
• Objects (graphical components)
• Styles
• Themes
• Anti-aliasing
• Images
• Fonts
• Animations
• Responsive
• Keyboard

Applications

Real life GUI examples which can be adapted in your own project. The applications are designed to adapt to your screen's resolution.

• Demo
• Benchmark
• System performance monitor
• Touchpad calibrator
• Terminal

Tests

Test cases to validate the features of LittelvGL. You can also use them as examples. The most important and useful tests are:

• Theme test: lv_test_theme_1()
• Keyboard interface test: lv_test_group_1()
• Tests of object types: lv_test_..._1/2/3() e.g. (lv_test_slider_1())

Contributing

For contribution and coding style guidelines, please refer to the file docs/CONTRIBUTNG.md in the main LittlevGL repo: https://github.com/littlevgl/lvgl You are encouraged to use the 'astyle' util to format your code prior to pushing it. The files docs/astyle_(c/h) contain astyle rules to format source and header files according to the project coding guidelines.