lv_obj_t*test_label = lv_label_create(lv_scr_act()); lv_label_set_text(test_label, LV_SYMBOL_OK);// 正常显示,则应显示一个 ✓ 字符。 lv_obj_align(test_label, LV_ALIGN_CENTER,0,0); lvgl_task1 = lv_timer_create(lvgl_task1_cb,1000,0);// 运行周期为lvgl的1000个滴答时钟 } ...
这里实现的内容是,在MCU上运行LVGL时,一旦显示完成当前的屏幕页面后,立即创建定时器对象登录后复制timer_meter_speed,这个定时器将会每隔100ms调用一次回调函数登录后复制timer_meter_speed_cb(),在登录后复制timer_meter_speed_cb()函数中,更新变量登录后复制speed的值,然后通过登录后复制lv_meter_set_indicator_value...
I run lv_async_call in child thread, usingxTaskCreatePinnedToCoreinESP32,lv_async_timer_cbseems running twice somtimes for onelv_async_call. Here is my log code inlv_async.c: staticvoidlv_async_timer_cb(lv_timer_t*timer) {printf("### lv_async_timer_cb 1 \n");lv_async_info_t*...
Embedded graphics library to create beautiful UIs for any MCU, MPU and display type. - lvgl/src/lv_misc/lv_timer.c at 8bc6931f7f8283017e3584c7c353cb6dd59c1e58 · lvgl/lvgl
主程序中每隔数毫秒(5ms)调用lv_timer_handler()处理LVGL界面(绘制显示界面,读取输入设备信息,展示动画等)。 初始化显示驱动 初始化lv_disp_draw_buf_t && lv_disp_drv_t这两个结构体然后对应初始化绘制缓冲区的内部图形缓冲区,显示驱动程序。 初始化缓存区 ...
默认情况标签的大小会自动拓展成和文本一样的大小(LV_SIZE_CONTENT),也可以设置宽高:lv_obj_set_size lv_obj_set_width lv_obj_set_height 这样就可能出现文本的宽度或高度大小与label不一样的情况,需要做一些调整,下面是几种模式: LV_LABEL_LONG_WRAP如果有多个换行,并且如果高度为LV_SIZE_CONTENT,那么高度会...
// LOG_D("get music pos pthread create ok!\n");}else{LOG_D("fork error:\n");}#ifLV_DEMO_MUSIC_AUTO_PLAYlv_timer_create(auto_step_cb,1000,NULL);#endif}这里说明一下mpv里的参数"--quiet",//输出尽量少的信息"--no-terminal",//不接受终端输入"--no-video",//不需要视频"--idle=...
intmain(void){lv_init();lv_port_disp_init();#ifLV_USE_DEMO_BENCHMARKlv_demo_benchmark();#endifwhile(1){lv_timer_handler_run_in_period(5);}} 编译,运行,走起: 嗯…… Slow but common case…… 最新的benchmark允许我们通过lv_demo_benchmark_set_finished_cb()注册一个回调函数——用于告知...
/*For big endian systems set to 1*/ #define LV_BIG_ENDIAN_SYSTEM 0 /*Define a custom attribute to `lv_tick_inc` function*/ #define LV_ATTRIBUTE_TICK_INC /*Define a custom attribute to `lv_timer_handler` function*/ #define LV_ATTRIBUTE_TIMER_HANDLER /*Define a custom attribu...
LV_ATTRIBUTE_TIMER_HANDLER uint32_t lv_timer_handler(void) { TIMER_TRACE("begin"); /*Avoid concurrent running of the timer handler*/ static bool already_running = false; if(already_running) return 1; already_running = true; if(lv_timer_run == false) { already_running = false; /*Rel...