错误 TS2339：“导航器”类型上不存在属性“相机”

Question

我正在尝试构建一个可以拍照的 Ionic 应用程序。 但是当我运行程序时，我得到“错误 TS2339：“导航器”类型上不存在属性“相机”

我安装了ionic cordova plugin add cordova-plugin-camera 还有npm install @ionic-native/camera

这是我的 app.module.ts：

import { NgModule } from "@angular/core";
import { BrowserModule } from "@angular/platform-browser";
import { RouteReuseStrategy } from "@angular/router";

import { IonicModule, IonicRouteStrategy } from "@ionic/angular";
import { SplashScreen } from "@ionic-native/splash-screen/ngx";
import { StatusBar } from "@ionic-native/status-bar/ngx";

import { AppComponent } from "./app.component";
import { AppRoutingModule } from "./app-routing.module";
import { Camera } from "@ionic-native/camera/ngx"; 

@NgModule({
  declarations: [AppComponent],
  entryComponents: [],
  imports: [BrowserModule, IonicModule.forRoot(), AppRoutingModule],
  providers: [
    Camera,
    StatusBar,
    SplashScreen,
    { provide: RouteReuseStrategy, useClass: IonicRouteStrategy }
  ],
  bootstrap: [AppComponent]
})
export class AppModule {}

这是我的 home.page.ts

import { Component, OnInit } from "@angular/core";
import { Camera, CameraOptions } from "@ionic-native/camera/ngx";

@Component({
  selector: "app-home",
  templateUrl: "home.page.html",
  styleUrls: ["home.page.scss"]
})
export class HomePage implements OnInit {

  constructor(private camera: Camera) {}

  takePicture() {
    navigator.camera.getPicture(onSuccess, onFail, {
      quality: 50,
      destinationType: this.camera.DestinationType.FILE_URI
    });

    function onSuccess(imageURI) {
      var image = document.getElementById("myImage");
      this.image.src = imageURI;
    }

    function onFail(message) {
      alert("Failed because: " + message);
    }
  }
}

Answer 1

但是，你为什么使用navigator.camera.getPicture()？

您必须使用this 关键字来访问相机对象，然后您可以调用getPicture() 方法，如this.camera.getPicture()。