Singleton providers?

Ionic Framework ionic-v3
1

I have made a provider which uses @injectable, its suppose to be singleton in all over the application but somehow when i console.log the data.items, they always come up empty, means it re instantiated the provider every time. Or am i missing something to make it singleton?

2

Anyone can please guide me

3

Hello,

some things you can consider me or worked to perfection

first component or principal, in this instantiate it, see below ioniBootstrap

import {SingletonX} from ‘./services/aafaf’;
@Component({
templateUrl: ‘build/xxxx.html’
})
export class ClassA {
get static parameters () {
return [
[SingletonX]];}
constructor (_singletonX) {
this._singletonX = _singletonX;
}

method () {
this._singletonX.setXXX (dddd)
}
}
ionicBootstrap (ClassA [SingletonX])

  • The singleton

@Injectable ()
Const export class {
get static parameters () {
return [[Importer]];
}
constructor (_importer) {
this._importer = _importer;
this._k = new Object ();
}
setXXX (ddddd) {
this._k
}
getXXX (ddddd) {
this._k return [ddddd]
}
…

  • Other component, see that is not in the provider

import {SingletonX} from ‘./services/aafaf’;
@Component ({
providers: [otherProviders],
templateUrl: ‘build / pages / xxxxx.html’
})
export OtherComponent class {
get static parameters () {
return [
[Const]];
}
constructor (_const) {
this._const = _const;
}

xMethod () {
xxx = this._const.getXXX let (xxxx);
}
…

Finally I do not speak English but look especially in not re-inject as provider, and must take into account the bootstrap.

If something comes back and asks