lv_obj_t* kb = (lv_obj_t*)lv_event_get_user_data(e);// 获取键盘对象 /* 获取文本点击事件 */ if(code == LV_EVENT_CLICKED) { lv_keyboard_set_textarea(kb, ta);// 将键盘与文本进行关联 lv_obj_clear_flag(kb, LV_OBJ_FLAG_HIDDEN);// 清除键盘的隐身标志,显示键盘 lv_obj_add_st...
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...
lvgl/src/core/lv_obj.c Lines 306 to 314 ina8d2cc0 voidlv_obj_add_state(lv_obj_t*obj,lv_state_tstate) { LV_ASSERT_OBJ(obj,MY_CLASS); lv_state_tnew_state=obj->state|state; if(obj->state!=new_state) { if(new_state&~obj->state&LV_STATE_DISABLED) { lv_indev_reset(NULL,obj...
if(code == LV_EVENT_VALUE_CHANGED) //当值切换时执行如下操作 { LV_LOG_USER("State: %s\n", lv_obj_has_state(obj, LV_STATE_CHECKED) ? "On" : "Off"); } } 然后给OBJ添加该回调函数即可 lv_obj_add_event_cb(sw, event_handler, LV_EVENT_ALL, NULL);//任何事件都会触发回调函数 在此...
lv_obj_add_event_cb(mbox, msgbox_event_cb, LV_EVENT_ALL, NULL); lv_group_focus_obj(lv_msgbox_get_buttons(mbox)); lv_obj_add_state(lv_msgbox_get_buttons(mbox), LV_STATE_FOCUS_KEY); lv_group_focus_freeze(g, true);6 changes: 3 additions & 3 deletions 6 demos/keypad_encoder/lv_...
I have a weird crash in my program ( I suspect a memory leak somewhere), dealing with adding objects to a rotary encoder group with lv_group_add_obj LPC55S69 // GuiGuider V1.3.1-GA // MCUXpresso V11.4.0 build 6237 // LvGL 8.2.0 & 8.0.2I...
lv_obj_add_style(slider01, &style_slider_main, LV_PART_MAIN | LV_STATE_PRESSED); 1. 2. 使滑块的主体只有在按下时才会使用该样式(颜色被改变): LVGL 的选择器在表现形式上效果非常像 CSS 的伪元素和伪类选择器。 滑块在拖动过程中,会不断触发LV_EVENT_VALUE_CHANGED事件,可以使用函数 ...
lv_obj_add_event_cb(btn, btn_event_cb, LV_EVENT_ALL, NULL); /*Assign a callback to the button*/ lv_obj_t * label = lv_label_create(btn); /*Add a label to the button*/ lv_label_set_text(label, "Button"); /*Set the labels text*/ ...
lv_obj_set_style_radius(ui_Slider1, 0, LV_PART_MAIN | LV_STATE_DEFAULT); lv_obj_set_style_bg_color(ui_Slider1, lv_color_hex(0xFFFFFF), LV_PART_MAIN | LV_STATE_DEFAULT); lv_obj_set_style_bg_opa(ui_Slider1, 0, LV_PART_MAIN | LV_STATE_DEFAULT); lv_obj_set_style_radius(...
}else{data->state=LV_INDEV_STATE_RELEASED; } } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 若是需要显示光标,则如下: 复制 lv_indev_t*mouse_indev=lv_indev_drv_register(&indev_drv);//图像声明LV_IMG_DECLARE(mouse_cursor_icon);//创建光标对象lv_obj_t*cursor_obj=lv_img_create(lv_scr_ac...