我们尝试使用google身份验证登录(Firebase / ionic2 / angularjs2)。我们的代码
import { Component } from '@angular/core';
import { NavController } from 'ionic-angular';
import { Observable } from 'rxjs/Observable';
import { AngularFireAuth } from 'angularfire2/auth';
import * as firebase from 'firebase/app';
@Component({
selector: 'page-home',
templateUrl: 'home.html'
})
export class HomePage {
user: Observable<firebase.User>;
constructor(public navCtrl: NavController,public afAuth: AngularFireAuth) {
this.user = afAuth.authState;
}
login() {
this.afAuth.auth.signInWithPopup(new firebase.auth.GoogleAuthProvider());
}
logout() {
this.afAuth.auth.signOut();
}
}
但我们收到错误:
Error: Uncaught (in promise): Error: No provider for AngularFireAuth!
Error: No provider for AngularFireAuth!
请指导我们在代码中使用的内容。
答案 0 :(得分:24)
澄清@rmalviya建议的内容,我假设您目前使用的是Ionic版本3.x.x,对于此版本,您有两种方法可以导入本机插件并为插件添加相应的提供程序。
1)您可以在当前页面打字稿文件中添加提供程序。像这样:
import { AngularFireAuth } from 'angularfire2/auth';
...
@Component({
selector: 'page-home',
templateUrl: 'home.html',
providers: [AngularFireAuth]
})
2)您可以在app.modules.ts中导入第二种方法并将插件添加到提供者中
import { AngularFireAuth } from 'angularfire2/auth';
...
providers: [
StatusBar,
SplashScreen,
{provide: ErrorHandler, useClass: IonicErrorHandler},
AngularFireAuth
]
答案 1 :(得分:2)
resolve here https://github.com/iglewski/Annotator/issues/3
app.component.spec.ts:
import { FirebaseApp, FirebaseAppConfig, AngularFireModule } from 'angularfire2';
import { AngularFireAuth, AngularFireAuthModule } from 'angularfire2/auth';
import { AngularFireDatabaseModule } from 'angularfire2/database';
import * as firebase from 'firebase/app';
import { firebaseConfig } from './app.module';
describe('AppComponent', () => {
beforeEach(async(() => {
TestBed.configureTestingModule({
declarations: [
AppComponent
],
imports: [
AngularFireModule.initializeApp(firebaseConfig), //ajout
AngularFireAuthModule, //ajout
AngularFireDatabaseModule //ajout
],
}).compileComponents();
}));
答案 2 :(得分:1)
如果您正在使用IonicPageModule系统,那么您需要在提供商的AngularFireAuth
和app.module.ts
中导入page.module.ts
阵列。
app.module.ts:
@NgModule({
...
providers: [AngularFireAuth]
...
page.module.ts:
@NgModule({
declarations: [
SignupPage,
],
imports: [
IonicPageModule.forChild(SignupPage)
],
exports: [
SignupPage
],
providers: [
AngularFireAuth
]
})
答案 3 :(得分:1)
我也遇到了同样的问题,但是我设法通过在核心模块中添加以下几行来解决了这个问题。
CoreModule包含的代码将用于实例化您的应用程序并加载一些核心功能。
import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
/* 3e. Import the angularfire2 thingy. */
**import {AngularFirestoreModule } from 'angularfire2/firestore';
import { AngularFireStorageModule } from 'angularfire2/storage';
import { AngularFireAuthModule } from 'angularfire2/auth';**
import { AuthModule } from '../auth/auth.module';
import { AuthService } from '../core/auth.service';
@NgModule({
declarations: [],
imports: [
CommonModule,
/* To allow the db to talk to the form. */
**AuthModule,
AngularFireAuthModule,
AngularFireStorageModule,
AngularFirestoreModule,**
],
exports: [],
providers: [
AuthService,
]
})
export class CoreModule { }