如何在适用于 Android 和 iOS 的 Ionic4 上启用 webRTC 到 InAppBrowser 应用程序？

Question

这发生在 ionic v4 应用的 android 和 iOS 版本中。我需要从一个 URL 嵌入一个网站到我的应用程序，但是这个网站有一个 JS 插件来实时读取代码栏：https://github.com/serratus/quaggaJS，这个插件使用方法“navigator.mediaDevices.getUserMedia”，所以我使用插件“InAppBrowser”将此网站嵌入应用程序，但此插件不适用于 Android 或 iOS 应用程序，但如果您在 Chrome 或 safari 浏览器上测试它，它可以完美运行。

我已在 config.xml 中授予所有权限，但仍无法访问相机。为了获得外部网站的摄像头访问权限，还有什么需要做的吗？

home.page.ts

import { Component } from '@angular/core';
import { Platform } from '@ionic/angular';
import { InAppBrowser } from '@ionic-native/in-app-browser/ngx';
import { AndroidPermissions } from '@ionic-native/android-permissions/ngx';

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

  constructor(private platform: Platform, private androidPermissions: AndroidPermissions, private iab: InAppBrowser) {   

    if (this.platform.is('cordova')) {
      this.platform.ready().then(() => {
        this.androidPermissions.checkPermission(this.androidPermissions.PERMISSION.CAMERA).then(
          result => console.log('Has permission?', result.hasPermission),
          err => this.androidPermissions.requestPermission(this.androidPermissions.PERMISSION.CAMERA)
        );

        this.androidPermissions.requestPermissions([this.androidPermissions.PERMISSION.CAMERA]);
      });

      this.iab.create('https://supermercadocomunal.com/tienda/', '_self', 'location=no, clearcache=yes, zoom=no');
    }
  }
}

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 { InAppBrowser } from '@ionic-native/in-app-browser/ngx';
import { AndroidPermissions } from '@ionic-native/android-permissions/ngx';


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

config.xml

<platform name="android">
        <allow-intent href="market:*" />
        <icon density="ldpi" src="resources/android/icon/drawable-ldpi-icon.png" />
        <icon density="mdpi" src="resources/android/icon/drawable-mdpi-icon.png" />
        <icon density="hdpi" src="resources/android/icon/drawable-hdpi-icon.png" />
        <icon density="xhdpi" src="resources/android/icon/drawable-xhdpi-icon.png" />
        <icon density="xxhdpi" src="resources/android/icon/drawable-xxhdpi-icon.png" />
        <icon density="xxxhdpi" src="resources/android/icon/drawable-xxxhdpi-icon.png" />
        <splash density="land-ldpi" src="resources/android/splash/drawable-land-ldpi-screen.png" />
        <splash density="land-mdpi" src="resources/android/splash/drawable-land-mdpi-screen.png" />
        <splash density="land-hdpi" src="resources/android/splash/drawable-land-hdpi-screen.png" />
        <splash density="land-xhdpi" src="resources/android/splash/drawable-land-xhdpi-screen.png" />
        <splash density="land-xxhdpi" src="resources/android/splash/drawable-land-xxhdpi-screen.png" />
        <splash density="land-xxxhdpi" src="resources/android/splash/drawable-land-xxxhdpi-screen.png" />
        <splash density="port-ldpi" src="resources/android/splash/drawable-port-ldpi-screen.png" />
        <splash density="port-mdpi" src="resources/android/splash/drawable-port-mdpi-screen.png" />
        <splash density="port-hdpi" src="resources/android/splash/drawable-port-hdpi-screen.png" />
        <splash density="port-xhdpi" src="resources/android/splash/drawable-port-xhdpi-screen.png" />
        <splash density="port-xxhdpi" src="resources/android/splash/drawable-port-xxhdpi-screen.png" />
        <splash density="port-xxxhdpi" src="resources/android/splash/drawable-port-xxxhdpi-screen.png" />
        <custom-config-file parent="/manifest" target="AndroidManifest.xml">
            <uses-feature android:name="android.hardware.camera" />
            <uses-feature android:name="android.hardware.camera.autofocus" />
            <uses-feature android:name="android.hardware.camera2.full" />
            <uses-feature android:name="android.hardware.camera2.autofocus" />
            <uses-permission android:name="android.permission.CAMERA" />
            <uses-permission android:name="android.permission.RECORD_AUDIO" />
            <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
            <uses-permission android:name="android.permission.INTERNET" />
            <uses-permission android:name="android.webkit.PermissionRequest" />
        </custom-config-file>
    </platform>

    <plugin name="cordova-plugin-whitelist" spec="1.3.3" />
    <plugin name="cordova-plugin-statusbar" spec="2.4.2" />
    <plugin name="cordova-plugin-device" spec="2.0.2" />
    <plugin name="cordova-plugin-splashscreen" spec="5.0.2" />
    <plugin name="cordova-plugin-ionic-webview" spec="^3.0.0" />
    <plugin name="cordova-plugin-ionic-keyboard" spec="^2.0.5" />
    <plugin name="cordova-plugin-android-permissions" spec="1.0.0" />
    <engine name="android" spec="8.0.0" />

Answer 1

@Alfredo Takazu 你试过了吗？

ionic-native/diagnostic 并使用 getMicrophoneAuthorizationStatus 检查授权

查看更多 Custom uses-permission with ionic 3