An Ada binding for the lvgl embedded GUI library version 5.3: https://github.com/littlevgl/lvgl

lvgl-ada is available in Alire (the Ada package manager). You can install it following the instructions here: https://github.com/alire-project/alire#installation

and then add lvgl_ada in the dependencies of your project: alr with lvgl_ada

To use the lvgl-ada binding you have to extend one of the lvgl_ada_*bit_color.gpr project file:

For instance:

project My_Lvlg extends "lvgl_ada_16bit_color.gpr" is
[...]
end My_Lvlg;

In this project you have to provide a lv_conf.h base on the lv_conf_template.h provided with lvgl (see lvlg documentation for more details).

lvgl-ada is a thin binding, which means that the API is very similar to original C API. The main difference is the package hierarchy.

    lv_obj_t * label = lv_label_create(h, NULL);
    lv_label_set_text(label, "Primary");

Becomes:

   Lab : Lv.Label.Instance;
begin
   Lab := Lv.Label.Create (H, No_Obj);
   Lv.Label.Set_Text (Lab, New_String ("Primary"));

You can find examples here, or alr get lvgl_ada_examples.