[Angular2] Using observables to bind value to a component out of data flow

[Carlos Esteban Lopez Jaramillo]

Hi, i'm making a busy indicator component, the way i did go with it is to have the component right under the app html component side to side with the <router-outlet></router-outlet> component.

I need to be able to set a variable from anywhere in the code, so i was thinking about observables to send values to it, can't use the angular binding with EventEmitter since the busy component is outside of the components hierarchy.

Any idea how to set it up? i'm a noob about Rxjs, how do i create an observable of the variable and how would i call it from another component to set the value?

[michael corbridge]

Hey Carlos,

Streams are definitely the way to go in this case. Torgeir Helgevold (<- props to Torgeir!) has an excellent example of this at:

http://www.syntaxsuccess.com/viewarticle/pub-sub-in-angular-2.0

I know for a fact that this will do exactly what you are looking for.

 - michael

[Carlos Esteban Lopez Jaramillo]

@michael corbridge I also think streams is the way to go, i'm thinking of setting up the component and above an injectable, then set up an Observable in the injectable and subscribe to it in the component, who is it?

For the time being i will look to the link you advised me.

[Carlos Esteban Lopez Jaramillo]

Yup, definitely the way to go, but that one isn't using the new version 5 beta, right, i think i will have to find out how it works by try and error.

El domingo, 17 de enero de 2016, 9:50:04 (UTC-5), michael corbridge escribió:

[Carlos Esteban Lopez Jaramillo]

Yup, done, finally i can finish my app, thanks for the help, by the way, i'm using ionic 2 but this kind of question was more related to angular 2.

El domingo, 17 de enero de 2016, 9:50:04 (UTC-5), michael corbridge escribió:

[michael corbridge]

I need to start writing some Ionic... I hope their forum is as good as this one!

[Carlos Esteban Lopez Jaramillo]

It's pretty good, there's not so much people but they do try to help when they know about the subject, or at least the ones in the ionic 2 section.

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Carlos López

Ingeniero Desarrollador

Programador Full Stack

Skype: luchillo.lopez

Móvil: +57 305 295 3543
Medellín, Colombia