How to calling method

Ionic Framework ionic-v3
1 
import { Component } from '@angular/core';
import { NavController } from 'ionic-angular';

import { Flashlight } from '@ionic-native/flashlight';
@Component({
  selector: 'page-home',
  templateUrl: 'home.html'
})
export class HomePage {

  constructor(public navCtrl: NavController,  public fl : Flashlight) {
   
  }

 public off(): void
  {
    this.fl.toggle();
    setTimeout(function(){ on() }, 3000);
  }

  public on(): void
  {this.fl.toggle();
    setTimeout(function(){ off(); }, 3000);

  }

}
2 
import { Component } from '@angular/core';

import { Flashlight } from '@ionic-native/flashlight';

@Component({
    selector: 'page-home',
    template: `
        <button ion-button (click)="on()" block outline>
            Start endless intermittent
        </button>
    `
})
export class HomePage {

    constructor(public fl: Flashlight) {}
    
    private off(): void {
        if(this.fl.isSwitchedOn()) {
            this.fl.switchOff().then(() => {
                setTimeout(() => {
                    this.on();
                }, 3000);
            });
        }
    }

    public on(): void {
        if(!this.fl.isSwitchedOn()) {
            this.fl.switchOn().then(() => {
                setTimeout(() => {
                    this.off();
                }, 3000);
            });    
        }
        
    }

}
1 Like
3

thank you for your solution.