前言

本文主要说明Ubuntu 23.4安装LVGL 9.0以及基于SDL的模拟环境。

代码下载

访问lv_port_pc_eclipse可以看到相信信息，官方已经打包好了整个代码环境。

安装CMAKE。

sudo apt install cmake

安装SDL。

sudo apt-get update && sudo apt-get install -y build-essential libsdl2-dev

安装LVGL，因为我们下载的是lv_port_pc_eclipse仓库，所以加上recursive参数会把lvgl也一起下载下来。

git clone --recursive https://github.com/lvgl/lv_port_pc_eclipse.git

下载完成后是这样的目录结构。

name@name-HP-Pavilion-g6-Notebook-PC:~/workspace/lv_port_pc_eclipse$ ls
CMakeLists.txt  Dockerfile   lv_conf.h  main.c    mouse_cursor_icon.c    pc_simulator.launch
confdef.txt     licence.txt  lvgl       Makefile  mouse_cursor_icon.png  README.md

编译

在lv_port_pc_eclipse目录中，创建编译文件夹build，然后执行cmake生成makefile文件。

name@name-HP-Pavilion-g6-Notebook-PC:~/workspace/lv_port_pc_eclipse$ mkdir build
name@name-HP-Pavilion-g6-Notebook-PC:~/workspace/lv_port_pc_eclipse/build$ cd build/
name@name-HP-Pavilion-g6-Notebook-PC:~/workspace/lv_port_pc_eclipse/build$ cmake .. .

log如下。

name@name-HP-Pavilion-g6-Notebook-PC:~/workspace/lv_port_pc_eclipse/build$ cmake .. .
CMake Warning:
  Ignoring extra path from command line:

   "."


-- The C compiler identification is GNU 12.3.0
-- The CXX compiler identification is GNU 12.3.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done
-- Generating done
-- Build files have been written to: /home/anruliu/workspace/lv_port_pc_eclipse/build

最后执行make -j即可。

name@name-HP-Pavilion-g6-Notebook-PC:~/workspace/lv_port_pc_eclipse/build$ make -j

编译完成后，可执行文件在上一层目录的bin/main，执行即可看到程序运行。

name@name-HP-Pavilion-g6-Notebook-PC:~/workspace/lv_port_pc_eclipse/bin$ ./main

当然还有很多的demo程序可以运行测试，添加入口函数即可。

name@name-HP-Pavilion-g6-Notebook-PC:~/workspace/lv_port_pc_eclipse$ git diff .
diff --git a/main.c b/main.c
index ed24d8b..a8d993a 100644
--- a/main.c
+++ b/main.c
@@ -76,6 +76,9 @@ int main(int argc, char **argv)
   hal_init(800, 480);
 
   lv_demo_widgets();
+  //lv_demo_music();
+  //lv_demo_benchmark(LV_DEMO_BENCHMARK_MODE_RENDER_AND_DRIVER);
+  /lv_demo_flex_layout();
 
   while(1) {
       /* Periodically call the lv_task handler.