PositionType

API Reference: UI.FlexLayout.PositionType

PositionType allows you to position objects either relative or absolute. Default value is relative. If you want an item to be positioned to an exact point, you need to set it as absolute.

note

The components in the example are added from the code for better showcase purposes. To learn more about the subject you can refer to:

Adding Component From Code

As a best practice, Smartface recommends using the WYSIWYG editor in order to add components and styles to your page or library. To learn how to use UI Editor better, please refer to this documentation

UI Editor Basics

import PageSampleDesign from "generated/pages/pageSample";
import { Route, Router } from "@smartface/router";
import Application from "@smartface/native/application";
import { styleableComponentMixin, styleableContainerComponentMixin } from "@smartface/styling-context";
import FlexLayout from "@smartface/native/ui/flexlayout";
import Label from "@smartface/native/ui/label";

class StyleableLabel extends styleableComponentMixin(Label) {}
class StyleableFlexLayout extends styleableContainerComponentMixin(FlexLayout) {}

//You should create new Page from UI-Editor and extend with it.
export default class Sample extends PageSampleDesign {
    myFlexLayout: StyleableFlexLayout;
    label1: StyleableLabel;
    label2: StyleableLabel;
    label3: StyleableLabel;

  constructor(private router?: Router, private route?: Route) {
    super({});
  }

  // The page design has been made from the code for better
  // showcase purposes. As a best practice, remove this and
  // use WYSIWYG editor to style your pages.
  centerizeTheChildrenLayout() {
    this.dispatch({
        type: "updateUserStyle",
        userStyle: {
            flexProps: {
              flexDirection: 'ROW',
              justifyContent: 'CENTER',
              alignItems: 'CENTER'
            }
        }
    })
  }

  onShow() {
    super.onShow();
    const { headerBar } = this;
    Application.statusBar.visible = false;
    headerBar.visible = false;

  }

  onLoad() {
    super.onLoad();
    this.centerizeTheChildrenLayout();

    this.myFlexLayout = new StyleableFlexLayout();

    this.addChild(this.myFlexLayout, "myFlexLayout", ".sf-flexLayout", {
        top: 0,
        left: 0,
        bottom: 0,
        right: 0,
        flexProps: {
          positionType: "ABSOLUTE",
          flexDirection: "ROW",
        },
        backgroundColor: "#FFFFFF",
      });
    
      this.label1 = new StyleableLabel({
        text: "RELATIVE",
      });
      this.label2 = new StyleableLabel({
        text: "RELATIVE",
      });
      this.label3 = new StyleableLabel({
        text: "ABSOLUTE",
      });
    
      let userProps2 = {
        width: 80,
        height: 80,
        textAlignment: "MIDCENTER",
      };
    
      this.myFlexLayout.addChild(
        this.label1,
        "label1",
        ".sf-flexLayout",
        Object.assign(userProps2, { backgroundColor: "#2a80b9" })
      );
    
      this.myFlexLayout.addChild(
        this.label2,
        "label2",
        ".sf-flexLayout",
        Object.assign(userProps2, { backgroundColor: "#8f44ad" })
      );
    
      this.myFlexLayout.addChild(
        this.label3,
        "label3",
        ".sf-flexLayout",
        Object.assign(userProps2, {
          backgroundColor: "#16a086",
          top: 200,
          left: 150,
          flexProps: {
            positionType: "ABSOLUTE",
          },
        })
      );
  }
}