源代码

  //17.2 创建线表控件                     /*Create a line meter */
  lv_obj_t * lmeter;
  lmeter = lv_lmeter_create(lv_scr_act(), NULL);
  lv_lmeter_set_range(lmeter, 0, 100);                   /*Set the range*/
  lv_lmeter_set_value(lmeter, 80);                       /*Set the current value*/
  lv_lmeter_set_scale(lmeter, 240, 31);                  /*Set the angle and number of lines*/
  lv_lmeter_set_style(lmeter, LV_LMETER_STYLE_MAIN, &style_lmeter);           /*Apply the new style*/
  lv_obj_set_size(lmeter, 150, 150);
  lv_obj_align(lmeter, NULL, LV_ALIGN_CENTER, -180, 0);

效果显示