一：环境使用

Nodemcu-esp32s开发板
128*160 tft 显示屏幕
GUI gui 开发软件
platformio + arduino框架开发环境

此移植需要提前配置好 LVGL 的环境，如果不会配置可以看我之前的文章LVGL配置

GUI gui 生成移植代码

我简单的生成了一个GUI gui 项目文件

在这里插入图片描述

生成的代码文件夹中custom 和 generated 是我们所需要的。

在这里插入图片描述
将这两个文件夹放到我们的platformio的工程文件夹下面，这一步的操作就完成了。

main文件修改

好了经过以上配置，我们以及将所需要的内容添加到里面了，但是如何调用呢，我们在一个已经配置好的lvgl 的main文件中修改。

添加头文件

#include<gui_guider.h>
#include<custom.h>
#include<events_init.h>

添加页面初始化配置
ps：一定要在lvgl和tft屏幕初始化之后


    setup_ui(&guider_ui);
    events_init(&guider_ui);
    custom_init(&guider_ui);

注意在前面我们需要声明 guider_ui 这个东东,否则会报错。
然后就大功告成了，看看成果。请添加图片描述

全部代码如下

#include<Arduino.h>
#include <lvgl.h>
#include <TFT_eSPI.h>
#include<gui_guider.h>
#include<custom.h>
#include<events_init.h>
/*If you want to use the LVGL examples,
  make sure to install the lv_examples Arduino library
  and uncomment the following line.
#include <lv_examples.h>
*/

lv_ui guider_ui;

/*Change to your screen resolution*/
static const uint16_t screenWidth  = 128;
static const uint16_t screenHeight = 160;

static lv_disp_draw_buf_t draw_buf;
static lv_color_t buf[ screenWidth * 10 ];

TFT_eSPI tft = TFT_eSPI(screenWidth, screenHeight); /* TFT instance */

#if LV_USE_LOG != 0
/* Serial debugging */
void my_print(const char * buf)
{
    
    
    Serial.printf(buf);
    Serial.flush();
}
#endif

/* Display flushing */
void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p )
{
    
    
    uint32_t w = ( area->x2 - area->x1 + 1 );
    uint32_t h = ( area->y2 - area->y1 + 1 );

    tft.startWrite();
    tft.setAddrWindow( area->x1, area->y1, w, h );
    tft.pushColors( ( uint16_t * )&color_p->full, w * h, true );
    tft.endWrite();

    lv_disp_flush_ready( disp );
}

/*
void my_touchpad_read( lv_indev_drv_t * indev_driver, lv_indev_data_t * data )
{
    uint16_t touchX, touchY;

    bool touched = tft.getTouch( &touchX, &touchY, 600 );

    if( !touched )
    {
        data->state = LV_INDEV_STATE_REL;
    }
    else
    {
        data->state = LV_INDEV_STATE_PR;


        data->point.x = touchX;
        data->point.y = touchY;

        Serial.print( "Data x " );
        Serial.println( touchX );

        Serial.print( "Data y " );
        Serial.println( touchY );
    }
}
*/
void setup()
{
    
    
    Serial.begin( 115200 ); /* prepare for possible serial debug */

    String LVGL_Arduino = "Hello LVGL! ";
    //LVGL_Arduino += String('V') + lv_version_major() + "." + lv_version_minor() + "." + lv_version_patch();
    Serial.println( LVGL_Arduino );
    Serial.println( "I am LVGL_Arduino" );

    lv_init();


#if LV_USE_LOG != 0
    lv_log_register_print_cb( my_print ); /* register print function for debugging */
#endif

    tft.begin();          /* TFT init */
    tft.setRotation( 0 ); /* Landscape orientation, flipped */
    /*Set the touchscreen calibration data,
     the actual data for your display can be acquired using
     the Generic -> Touch_calibrate example from the TFT_eSPI library*/
   // uint16_t calData[5] = { 275, 3620, 264, 3532, 1 };
   // tft.setTouch( calData );

    lv_disp_draw_buf_init( &draw_buf, buf, NULL, screenWidth * 10 );

    /*Initialize the display*/
    static lv_disp_drv_t disp_drv;
    lv_disp_drv_init( &disp_drv );
    /*Change the following line to your display resolution*/
    disp_drv.hor_res = screenWidth;
    disp_drv.ver_res = screenHeight;
    disp_drv.flush_cb = my_disp_flush;
    disp_drv.draw_buf = &draw_buf;
    lv_disp_drv_register( &disp_drv );

    /*Initialize the (dummy) input device driver*/
    //static lv_indev_drv_t indev_drv;
    //lv_indev_drv_init( &indev_drv );
    //indev_drv.type = LV_INDEV_TYPE_POINTER;
    //indev_drv.read_cb = my_touchpad_read;
    //lv_indev_drv_register( &indev_drv );

#if 1

    setup_ui(&guider_ui);
    events_init(&guider_ui);
    custom_init(&guider_ui);
    /* Create simple label */
   /* lv_obj_t *label = lv_label_create( lv_scr_act() );
    lv_label_set_text( label, LVGL_Arduino.c_str() );
    lv_obj_align( label, LV_ALIGN_CENTER, 0, 0 );*/
#else
    /* Try an example from the lv_examples Arduino library
       make sure to include it as written above.
    lv_example_btn_1();
   */

    // uncomment one of these demos
    lv_demo_widgets();            // OK
    // lv_demo_benchmark();          // OK
    // lv_demo_keypad_encoder();     // works, but I haven't an encoder
    // lv_demo_music();              // NOK
    // lv_demo_printer();
    // lv_demo_stress();             // seems to be OK
#endif
    Serial.println( "Setup done" );
}

void loop()
{
    
    
    lv_timer_handler(); /* let the GUI do its work */
    delay( 5 );
}

[LVGL]GUI gui 生成图形界面代码移植到esp32

一：环境使用

GUI gui 生成移植代码

相关文件修改

main文件修改

全部代码如下

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