lvgl-squareline-导出篇

如何导出然后用到我们的代码里面？

导出数据

当创建好了ui点击左上方的export按钮，通常我都是导出ui就行，导出整个例子用不上

文件夹打开

用文件加打开ui存放的路径然后打开里面的c文件查看：

ui.c：

其实主要就定义了一个屏幕初始化和一个textarea初始化的函数

这里提到了一个叫主题的玩意儿，虽然我也不知道这和样式有什么区别，但是还是了解一下

https://blog.csdn.net/mygod2008ok/article/details/119746997

主题是以下函数：

这里则是导入照片的c区域

移植到工程中

那么如何移植呢？

1.创建ui.h文件并把模板复制进去

2.创建.c文件把ui.c和screen.c里面的数据进行简单的处理得到以下的代码;

#include "ui.h"


lv_obj_t * ui_Screen1;
lv_obj_t * ui_TextArea2;
lv_obj_t * ui_Keyboard3;

void ui_event_TextArea2(lv_event_t * e)
{
    lv_event_code_t event_code = lv_event_get_code(e);
    lv_obj_t * target = lv_event_get_target(e);
    if(event_code == LV_EVENT_CLICKED) {
        //_ui_keyboard_set_target(ui_Keyboard3,  ui_TextArea2);
        lv_keyboard_set_textarea(ui_Keyboard3, ui_TextArea2);
    }
}

void ui_Screen1_screen_init(void)
{
    lv_disp_t * dispp = lv_disp_get_default();
    lv_theme_t * theme = lv_theme_default_init(dispp, lv_palette_main(LV_PALETTE_BLUE), lv_palette_main(LV_PALETTE_RED),
                                               false, LV_FONT_DEFAULT);
    lv_disp_set_theme(dispp, theme);

    ui_Screen1 = lv_obj_create(NULL);
    lv_obj_clear_flag(ui_Screen1, LV_OBJ_FLAG_SCROLLABLE);      /// Flags
    lv_obj_set_style_bg_color(ui_Screen1, lv_color_hex(0x02CFCB), LV_PART_MAIN | LV_STATE_DEFAULT);
    lv_obj_set_style_bg_opa(ui_Screen1, 255, LV_PART_MAIN | LV_STATE_DEFAULT);
    lv_obj_set_style_bg_grad_color(ui_Screen1, lv_color_hex(0xC10404), LV_PART_MAIN | LV_STATE_DEFAULT);
    lv_obj_set_style_bg_main_stop(ui_Screen1, 0, LV_PART_MAIN | LV_STATE_DEFAULT);
    lv_obj_set_style_bg_grad_stop(ui_Screen1, 200, LV_PART_MAIN | LV_STATE_DEFAULT);
    lv_obj_set_style_bg_grad_dir(ui_Screen1, LV_GRAD_DIR_HOR, LV_PART_MAIN | LV_STATE_DEFAULT);

    ui_TextArea2 = lv_textarea_create(ui_Screen1);
    lv_obj_set_width(ui_TextArea2, 150);
    lv_obj_set_height(ui_TextArea2, 70);
    lv_obj_set_x(ui_TextArea2, 3);
    lv_obj_set_y(ui_TextArea2, -123);
    lv_obj_set_align(ui_TextArea2, LV_ALIGN_CENTER);
    lv_textarea_set_placeholder_text(ui_TextArea2, "Placeholder...");

    ui_Keyboard3 = lv_keyboard_create(ui_Screen1);
    lv_obj_set_width(ui_Keyboard3, 300);
    lv_obj_set_height(ui_Keyboard3, 120);
    lv_obj_set_x(ui_Keyboard3, 9);
    lv_obj_set_y(ui_Keyboard3, 35);
    lv_obj_set_align(ui_Keyboard3, LV_ALIGN_CENTER);

    lv_obj_add_event_cb(ui_TextArea2, ui_event_TextArea2, LV_EVENT_ALL, NULL);

}


void ui_start(void)
{
    ui_Screen1_screen_init();
    lv_disp_load_scr(ui_Screen1);

}

复制进去

cmake

简单修改以下cmake

cmake_minimum_required(VERSION 3.12.4)

SET(CMAKE_C_COMPILER /home/momo/Tina-Linux/prebuilt/gcc/linux-x86/arm/toolchain-sunxi-musl/toolchain/bin/arm-openwrt-linux-muslgnueabi-gcc)
SET(CMAKE_CXX_COMPILER /home/momo/Tina-Linux/prebuilt/gcc/linux-x86/arm/toolchain-sunxi-musl/toolchain/bin/arm-openwrt-linux-muslgnueabi-g++)

project(lcd_lvgl VERSION 1.1)

set(CMAKE_INSTALL_PREFIX /home/momo/Tina-Linux/exsample/lcd_lvgl/build)

#包含lvgl的子库
add_subdirectory(lvgl)

#创建exe的可执行程序
add_executable(lvgl_ui lcd_lvgl.c ui.c)

#链接所需要的库
target_link_libraries(lvgl_ui PUBLIC lvgl)
#target_link_libraries(lvgl_ui PUBLIC lvgl_demos)