login(){
    this.af.auth.login({

      email: this.email,
      password: this.password

    },{
      provider: AuthProviders.Password,
      method: AuthMethods.Password

    }).then((response)=>{
     // console.log('Login geslaagd' + JSON.stringify(response));
    //  console.log(this.email);
     // console.log(this.password);
      let currentuser = {
        email: response.auth.email,
        picture: response.auth.photoURL,
        userUID: response.auth.uid

      };
      //console.log("current user mail "+ currentuser.userUID);
      window.localStorage.setItem('currentuserEmail',JSON.stringify(currentuser.userUID));

      window.localStorage.setItem('currentuser', JSON.stringify(currentuser))


      this.navCtrl.setRoot(HomePage);
      //this.navCtrl.push(HomePage);
    })//.then((response) => {
      //this.navCtrl.push(HomePage);
      //}


      .catch((error)=> {
        this.tonenErrorPopUp(error);
      console.log(error);})
  }

  tonenErrorPopUp(error){
    setTimeout(() => {});
    let prompt = this.alertCtrl.create({
      title: 'Fail',
      subTitle: error,
      buttons: ['ok']
    });
    prompt.present();

  }