<!DOCTYPE HTML>
<html>
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Demo</title>
    <script id="sap-ui-bootstrap"
      src="https://sdk.openui5.org/nightly/resources/sap-ui-core.js"
      data-sap-ui-oninit="module:sap/ui/core/ComponentSupport"
      data-sap-ui-async="true"
      data-sap-ui-compatversion="edge"
      data-sap-ui-excludejquerycompat="true"
      data-sap-ui-resourceroots='{ "demo": "./" }'
      data-sap-ui-xx-waitfortheme="init"
      data-sap-ui-xx-componentpreload="off"
    ></script>
  </head>
  <body id="content" class="sapUiBody">
    <div
      data-sap-ui-component
      data-id="rootComponentContainer"
      data-name="demo"
      data-height="100%"
      data-settings='{"id": "rootComponent"}'
    ></div>
  </body>
</html>
{
  "_version": "1.53.0",
  "start_url": "index.html",
  "sap.app": {
    "id": "demo",
    "title": "foo",
    "type": "application",
    "applicationVersion": {
      "version": "1.0.0"
    },
    "dataSources": {}
  },
  "sap.ui": {
    "technology": "UI5",
    "deviceTypes": {
      "desktop": true,
      "tablet": true,
      "phone": true
    }
  },
  "sap.ui5": {
    "dependencies": {
      "minUI5Version": "1.98.0",
      "libs": {
        "sap.ui.core": {},
        "sap.m": {},
        "sap.ui.layout": {},
        "sap.ui.unified": {}
      }
    },
    "contentDensities": {
      "compact": true,
      "cozy": true
    },
    "models": {
      "ui": {
        "type": "sap.ui.model.json.JSONModel"
      }
    },
    "rootView": {
      "id": "rootView",
      "viewName": "demo.view.App",
      "type": "XML"
    },
    "routing": {
      "config": {
        "routerClass": "sap.m.routing.Router",
        "type": "View",
        "viewType": "XML",
        "path": "demo.view",
        "controlId": "myApp",
        "controlAggregation": "pages",
        "bypassed": {
          "target": "notFound"
        }
      },
      "routes": [
        {
          "name": "home",
          "pattern": "",
          "target": "parentTarget"
        },
        {
          "name": "childRoute1",
          "pattern": "child1",
          "target": "childTarget1"
        },
        {
          "name": "childRoute2",
          "pattern": "child2",
          "target": "childTarget2"
        }
      ],
      "targets": {
        "parentTarget": {
          "name": "Parent",
          "level": 1
        },
        "childTarget1": {
          "path": "demo.view.children",
          "name": "Child1",
          "parent": "parentTarget",
          "controlId": "parentNavContainer",
          "transition": "flip",
          "level": 2
        },
        "childTarget2": {
          "path": "demo.view.children",
          "name": "Child2",
          "parent": "parentTarget",
          "controlId": "parentNavContainer",
          "transition": "slide",
          "level": 3
        },
        "notFound": {
          "name": "Parent",
          "transition": "flip",
          "level": 0
        }
      }
    }
  }
}
<mvc:View
	xmlns:mvc="sap.ui.core.mvc"
	xmlns="sap.m"
	displayBlock="true"
>
	<App id="myApp" autoFocus="false">
		<pages>
			<!-- The "Parent" view will be added here by the routing mechanism -->
		</pages>
	</App>
</mvc:View>
<mvc:View controllerName="demo.controller.Parent"
  xmlns:mvc="sap.ui.core.mvc"
  xmlns="sap.m"
>
  <Page id="parentPage"
    class="sapUiResponsivePadding--header sapUiResponsivePadding--footer"
    title="Parent View"
  >
    <headerContent>
      <SegmentedButton
        width="100%"
        selectionChange=".onSegmentedButtonSelectionChange"
        selectedKey="{
          path: 'ui>/selectedRoute',
          events: { change: '.onSelectedRouteBindingChange' }
        }"
      >
        <items>
          <SegmentedButtonItem
            key="childRoute1"
            text="Child View 1"
            icon="sap-icon://sap-ui5"
          />
          <SegmentedButtonItem
            key="childRoute2"
            text="Child View 2"
            icon="sap-icon://hello-world"
          />
        </items>
      </SegmentedButton>
    </headerContent>
    <NavContainer id="parentNavContainer" autoFocus="false"> <!--
      Avoid sap.m.App here. Instead, use sap.m.NavContainer:
      https://github.com/SAP/openui5/issues/1282#issuecomment-280575439
    -->
      <pages>
      	<!-- Child views will be added here by the routing mechanism -->
      </pages>
    </NavContainer>
    <footer>
      <Bar design="Footer">
        <contentMiddle>
          <Title text="Parent Footer" />
        </contentMiddle>
      </Bar>
    </footer>
  </Page>
</mvc:View>
<mvc:View controllerName="demo.controller.children.Child1"
  xmlns:mvc="sap.ui.core.mvc"
  xmlns="sap.m"
  height="100%"
>
  <MessagePage
    showHeader="false"
    icon="sap-icon://sap-ui5"
    text="Child View 1"
    description=""
  />
</mvc:View>
<mvc:View
  xmlns:mvc="sap.ui.core.mvc"
  xmlns="sap.m"
  height="100%"
>
  <MessagePage
    showHeader="false"
    icon="sap-icon://hello-world"
    text="Hello Child View 2"
    description=""
  />
</mvc:View>
sap.ui.define([
  "sap/ui/core/UIComponent",
  "sap/ui/core/ComponentSupport",//https://github.com/SAP/ui5-tooling/issues/381
], function(UIComponent) {
  "use strict";
  
  return UIComponent.extend("demo.Component", {
    metadata: {
      interfaces: [
        "sap.ui.core.IAsyncContentCreation"
      ],
      manifest: "json",
    },

    init: function() {
      UIComponent.prototype.init.apply(this, arguments);
      this.getModel("ui").setData({ selectedRoute: "" });
      this.getRouter().initialize();
    },
    
  });
});
sap.ui.define([
	"sap/ui/core/mvc/Controller",
	"sap/ui/core/UIComponent",
], function(Controller, UIComponent) {
	"use strict";

	return Controller.extend("demo.controller.Parent", {
		onInit: function() {
			const router = UIComponent.getRouterFor(this);
			router.attachRoutePatternMatched(this.onPatternMatched, this);
		},

		onPatternMatched: function(event) {
			const key = event.getParameter("name");
			const uiModel = this.getOwnerComponent().getModel("ui");
			if (key === "home") {
				uiModel.setProperty("/selectedRoute", "childRoute1");
			} else {
				uiModel.setProperty("/selectedRoute", key);
			}
		},

		onSegmentedButtonSelectionChange: function(event) {
			this.navTo(event.getParameter("item").getKey());
		},

		onSelectedRouteBindingChange: function(event) {
			this.navTo(event.getSource().getValue());
		},

		navTo: function(routeName) {
			if (routeName) {
				const router = this.getOwnerComponent().getRouter();
				router.navTo(routeName);
			}
		},

	});
});
sap.ui.define([
  "sap/ui/core/mvc/Controller",
], function(Controller) {
  "use strict";

  return Controller.extend("demo.controller.children.Child1", {
    onInit: function() {
      this._navContainerDelegate = { onBeforeShow: this.onBeforeShow };
      this.getView().addEventDelegate(this._navContainerDelegate, this);
    },

    onBeforeShow: function() {
      // For https://stackoverflow.com/q/48097675/5846045
      console.log("onBeforeShow was called");
    },

    onExit: function() { // Don't forget to deregister the delegate on exit.
      this.getView().removeEventDelegate(this._navContainerDelegate);
      this._navContainerDelegate = null;
    },

  });
});