I’m attempting to inject NavController and ViewController into either my app.js file or a custom service. My objective is (or was) to pass the current view into a “LeftMenuManager” service class. Some pages I need the leftmenu to be disabled, others I do not. The LeftMenuManager service would be re…

This is exactly what is happening with me (inside of App.js), any resolution?

Well i’m using @ViewChild and a variable in the html nav component to get it inside of the app.ts, idk if this is a good approach to the issue but maybe you could use it as well: <ion-nav id="nav" #rootNavController [root]="rootPage" #content> </ion-nav> In app.ts: import {ViewChild} from 'angula…

I have faced the same problem…:dizzy_face: this is my code… Please help me… import {Page,NavController} from 'ionic-framework/ionic'; import {addTodo} from '../addTodo/addTodo'; @Page({ templateUrl: 'build/pages/home/home.html' }) export class HomePage { constructor(nav: NavController) …

@Daveshirman Could you explain with sample code?

@praveenjp , my situation was similar to yours, I’ve solved using this post: Cannot resolve all parameters error ? Notice that the parameter now it’s just “nav”, cause you’re calling the one returned by the get parameters()

This question is asked every week, at least once ) So I strongly recommend you use search. It’s bad practice to change a view from a service (broken MVC). However, you could send events from services to the main controller, and the controller can use NavController (best way), or you could send NavC…

Thank you for this, I don’t know why I didn’t think of that earlier. Using events seems like by far the best way.

Agree. Best would be to use events but in my case I’m sending the NavController as a parameter to the Service. THX for the tip :wink:

In my scenario I wanted to override the Angular 2 exception handler and alert the error messages when they were caught (for device debugging). In the code I produced I injected the IonicApp service and that had a method getActiveNav(), which I think is undocumented, to return the current active nav…

Why can't I import NavController and ViewController into Service or App?

Ionic Framework ionic-v3

Cheaf April 2, 2016, 1:59pm 18

Does anybody managed to import NavController in service?

I need to display ionic alert from service and also cannot import NavController

Nav in Injectable() class, using ViewChild is undefined?

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Why can't I import NavController and ViewController into Service or App?

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