如果需要调整控件的尺寸,可以使用函数,lv_obj_set_width()和lv_obj_set_height()分别调整长宽,或使用lv_obj_set_size()一并调整: lv_obj_t* cont =lv_obj_create(lv_scr_act());lv_obj_t* label =lv_label_create(cont);lv_label_set_text(label,"Helllllo, world!");lv_obj_set_size(cont,16...
类似于这样,此处为了方便演示写了两个按钮用于切换界面,使用按键回调函数来实现切换 lv_obj_t * SETTINGS = lv_btn_create(contanier1); lv_obj_add_event_cb(SETTINGS, SETTINGS_event_handler, LV_EVENT_CLICKED, NULL); lv_obj_set_pos(SETTINGS,125,125); lv_obj_set_size(SETTINGS, 80, 80); lv_...
lv_obj_t* ta = lv_textarea_create(lv_scr_act()); lv_obj_align(ta, LV_ALIGN_TOP_MID,0,10);// 相对位置设置 lv_obj_set_size(ta, lv_pct(90),80);// 文本框大小 lv_textarea_set_placeholder_text(ta,"Click Enter");// 文本提示信息 lv_obj_add_state(ta, LV_STATE_DEFAULT);// ...
lv_obj_set_x, lv_obj_set_y don't emit LV_EVENT_SIZE_CHANGED.#4466 incityopened this issueAug 18, 2023· 1 comment The document says so, but in reality, it's not: LV_EVENT_SIZE_CHANGED, /**< Object coordinates/size have changed*/ ...
Johenneschanged the titlelv_obj_set_content_width & lv_obj_set_content_height don#t take border side into accountOct 5, 2022 Johennesadded a commit to Johennes/lvgl that referenced this issueOct 5, 2022 fix(obj_pos): Take border sides into account when computing content size… ...
lv_meter_set_scale_range(meter, 0, 100); lv_obj_set_pos(meter, 10, 10); lv_obj_set_size(meter, 200, 100); } #endif ``` 运行上述代码,将创建一个仪表控件,并设置其刻度范围为0 到 100。 III.函数应用场景 A.刻度范围设置的重要性 在实际应用中,仪表刻度范围的选择非常关键。合适的刻度范围...
lv_line_set_points(&curve_line, curve_points, sizeof(curve_points)/sizeof(curve_points[0])); 绘制曲线 lv_obj_invalidate(&curve_line);使曲线可见 根据需要调整控制点的位置 ... } 在这个示例中,我们首先使用lv_bezier3函数计算出曲线上的点坐标,并将这些点存储在curve_points数组中。 然后,我们创建...
def set_value(indic, v): meter.set_indicator_value(indic, v) # 1. 创建显示screen对象。将需要显示的组件添加到这个screen才能显示 #scr = lv.obj() #scr===> screen 屏幕 fs_drv = lv.fs_drv_t() fs_driver.fs_register(fs_drv, 'S') #...
self.setMetaParam(DMDK_PHYBLKSIZE, self.phyBlkSize)# Check that all devices in the VG have the same logical and physical# block sizes.lvm.checkVGBlockSizes(sdUUID, (self.logBlkSize, self.phyBlkSize))# _extendlock is used to prevent race between# VG extend and LV extend.self._extendlock...
修改lv_example_label_3.c 文件的lv_example_label_3函数 void lv_example_label_3(void) { LV_FONT_DECLARE(lv_font_stliti_24); lv_obj_t * cz_label = lv_label_create(lv_scr_act()); lv_label_set_recolor(cz_label, true); lv_label_set_text(cz_label, "温度: 18℃ 湿度: 65%\n #...