init Files

libraries/lvgl/examples/libs/qrcode/index.rst

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+Create a QR Code
+----------------
+
+.. lv_example:: libs/qrcode/lv_example_qrcode_1
+  :language: c
+

libraries/lvgl/examples/libs/qrcode/lv_example_qrcode.h

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+/**
+ * @file lv_example_qrcode.h
+ *
+ */
+
+#ifndef LV_EXAMPLE_QRCODE_H
+#define LV_EXAMPLE_QRCODE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************
+ *      INCLUDES
+ *********************/
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+void lv_example_qrcode_1(void);
+
+/**********************
+ *      MACROS
+ **********************/
+
+#ifdef __cplusplus
+} /*extern "C"*/
+#endif
+
+#endif /*LV_EXAMPLE_QRCODE_H*/

libraries/lvgl/examples/libs/qrcode/lv_example_qrcode_1.c

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+#include "../../lv_examples.h"
+#if LV_USE_QRCODE && LV_BUILD_EXAMPLES
+#include <string.h>
+
+/**
+ * Create a QR Code
+ */
+void lv_example_qrcode_1(void)
+{
+    lv_color_t bg_color = lv_palette_lighten(LV_PALETTE_LIGHT_BLUE, 5);
+    lv_color_t fg_color = lv_palette_darken(LV_PALETTE_BLUE, 4);
+
+    lv_obj_t * qr = lv_qrcode_create(lv_screen_active());
+    lv_qrcode_set_size(qr, 150);
+    lv_qrcode_set_dark_color(qr, fg_color);
+    lv_qrcode_set_light_color(qr, bg_color);
+
+    /*Set data*/
+    const char * data = "https://lvgl.io";
+    lv_qrcode_update(qr, data, strlen(data));
+    lv_obj_center(qr);
+
+    /*Add a border with bg_color*/
+    lv_obj_set_style_border_color(qr, bg_color, 0);
+    lv_obj_set_style_border_width(qr, 5, 0);
+}
+
+#endif