Adding example for navigation login like.

ng-sample/app/app.ts

@@ -11,9 +11,9 @@ import { NS_ROUTER_PROVIDERS, routerTraceCategory } from "./nativescript-angular
 import { rendererTraceCategory } from "./nativescript-angular/renderer";
 
 import trace = require("trace");
-// trace.setCategories(routerTraceCategory + ", " + rendererTraceCategory);
+//trace.setCategories(routerTraceCategory + ", " + rendererTraceCategory);
 // trace.setCategories(rendererTraceCategory);
-// trace.setCategories(routerTraceCategory);
+trace.setCategories(routerTraceCategory);
 trace.enable();
 
 import {RendererTest} from './examples/renderer-test';
@@ -27,8 +27,9 @@ import {ActionBarTest} from "./examples/action-bar/action-bar-test";
 import {ModalTest} from "./examples/modal/modal-test";
 import {PlatfromDirectivesTest} from "./examples/platform-directives/platform-directives-test";
 import {RouterOutletTest} from "./examples/navigation/router-outlet-test";
+import {LoginTest} from "./examples/navigation/login-test";
 
-nativeScriptBootstrap(RendererTest);
+//nativeScriptBootstrap(RendererTest);
 //nativeScriptBootstrap(TabViewTest);
 //nativeScriptBootstrap(Benchmark);
 //nativeScriptBootstrap(ListTest);
@@ -40,3 +41,4 @@ nativeScriptBootstrap(RendererTest);
 //nativeScriptBootstrap(ModalTest);
 //nativeScriptBootstrap(PlatfromDirectivesTest);
 //nativeScriptBootstrap(RouterOutletTest, [NS_ROUTER_PROVIDERS]);
+nativeScriptBootstrap(LoginTest, [NS_ROUTER_PROVIDERS]);

ng-sample/app/examples/navigation/login-test.ts

@@ -0,0 +1,70 @@
+import {Component} from '@angular/core';
+import {RouteConfig, ROUTER_PROVIDERS, ROUTER_DIRECTIVES, ComponentInstruction, Router, RouteParams, RouteData} from '@angular/router-deprecated';
+import {NS_ROUTER_DIRECTIVES, NS_ROUTER_PROVIDERS} from "../../nativescript-angular/router/ns-router";
+import {isBlank} from '@angular/core/src/facade/lang';
+
+@Component({
+    selector: 'login-page',
+    directives: [NS_ROUTER_DIRECTIVES],
+    template: `
+    <StackLayout>
+        <StackLayout orientation='horizontal'>
+            <Label text="user: "></Label>
+            <TextField text="user"></TextField>
+        </StackLayout>
+        <StackLayout orientation='horizontal'>
+            <Label text="pass: "></Label>
+            <TextField text="pass"></TextField>
+        </StackLayout>
+        <Button text='Login' (tap)="onLoginTap()"></Button>
+    </StackLayout>
+    `
+})
+export class LoginPage {
+    private router: Router;
+    constructor(private _router: Router){
+        this.router = _router;
+    }
+    onLoginTap(args) {
+        this.router.navigate(["Main", { "success" : true }]);
+    }
+}
+
+@Component({
+    selector: 'main',
+    directives: [NS_ROUTER_DIRECTIVES],
+    template: `
+    <TextField text="Main Content"></TextField>
+    `
+})
+export class MainComponent {
+    private getParamOrData(key: string, params: RouteParams, data: RouteData) {
+        let result = params.get(key);
+        if (!isBlank(result)) {
+            return result;
+        } else {
+            return data.get(key);
+        }
+    }
+
+    constructor(params: RouteParams, private _router: Router, private _data: RouteData) {
+        let success = this.getParamOrData("success", params, _data);
+        if (!success) {
+            _router.navigate(["Login"]);
+        }
+        console.log("params: " + params);
+    }
+}
+
+@Component({
+    selector: 'login-test',
+    directives: [NS_ROUTER_DIRECTIVES],
+    template: `<page-router-outlet></page-router-outlet>`
+})
+@RouteConfig([
+    { path: '/login', component: LoginPage, name: 'Login' },
+    { path: '/main', component: MainComponent, name: 'Main', data: {"success": false}, useAsDefault: true },
+])
+export class LoginTest {
+
+}

src/nativescript-angular/router/ns-router-link.ts

@@ -1,7 +1,6 @@
 import {Directive, Input} from '@angular/core';
 import {isString} from '@angular/core/src/facade/lang';
 import {Router, Instruction} from '@angular/router-deprecated';
-import {Location} from '@angular/common';
 import { log } from "./common";
 
 /**
@@ -46,7 +45,7 @@ export class NSRouterLink {
     // the instruction passed to the router to navigate
     private _navigationInstruction: Instruction;
 
-    constructor(private _router: Router, private _location: Location) { }
+    constructor(private _router: Router) { }
 
     get isRouteActive(): boolean { return this._router.isRouteActive(this._navigationInstruction); }