Question

摘要/上下文

我已经花了8个小时试图解决似乎没有任何可行解决方案的问题：突然之间，我的Ionic Cordova项目在连接到Internet时就开始出现问题。

我试图安装Firebase并设置FCM，这使我陷入了这个问题。我最终回滚到一个稳定的版本，该版本运行良好，并且没有任何问题。但是问题仍然存在。到目前为止，在此问题得到解决之前，我的应用程序已经完全失效且无用。

说明问题

该应用程序无法连接到Internet。 Android平台文件夹的构建与APK一样完美，但打开该应用程序后，无法从我的服务器中获取资源。
它也无法访问其他通用Internet资源。举例来说，执行fetch('http://www.google.com')会返回404状态。
过去，我通过激活Chrome的“远程设备”选项，直接在设备中测试APK，激活了开发人员调试选项。现在，它绝对检测不到任何东西。
听起来很奇怪，在导航器中通过ionic serve测试该应用程序时，它运行正常，可以正常访问我的服务器资源并正常执行网络请求。

到目前为止，我已经尝试过：

更改我的Node版本。我都尝试了LTS和最新版本（v12.11.1），但都给出了完全相同的结果。
将Cordova更新到最新版本，并将其回滚到7.1，但是它们都不起作用。
安装/卸载Cordova Androidx和Cordova Androidx适配器插件。
当然，在上述每个步骤中，删除并重新创建android平台。
添加一个<meta>标记以接受所有请求，如另一个线程中所建议的那样。
将<allow-navigation href="*" />添加到config.xml文件中。

系统和设置：

使用命令ionic info生成的转储：

Ionic:

   Ionic CLI                     : 5.2.5 (C:\Users\zerok\AppData\Roaming\npm\node_modules\ionic)
   Ionic Framework               : @ionic/angular 4.0.0
   @angular-devkit/build-angular : 0.12.4
   @angular-devkit/schematics    : 7.3.0
   @angular/cli                  : 7.1.0
   @ionic/angular-toolkit        : 1.3.0

Cordova:

   Cordova CLI       : 9.0.0 (cordova-lib@9.0.1)
   Cordova Platforms : android 8.1.0
   Cordova Plugins   : cordova-plugin-ionic-keyboard 2.1.3, cordova-plugin-ionic-webview 4.1.1, (and 12 other plugins)

Utility:

   cordova-res : 0.7.0
   native-run  : not installed

System:

   NodeJS : v12.11.1 (C:\Program Files\nodejs\node.exe)
   npm    : 6.11.3
   OS     : Windows 10

在小米Pocophone（Android 9）中进行测试

使用ionic cordova build android 构建应用时记录：

ionic cordova build android
> ng.cmd run app:ionic-cordova-build --platform=android

Date: 2019-10-03T11:29:32.113Z
Hash: 12ee885cabf55c31b9b6
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chunk {cordova} cordova.js, cordova.js.map (cordova) 63.5 kB [entry] [rendered]
chunk {default~event-creation-event-creation-module~event-page-event-page-module~map-map-module~place-page-~c14e8f5b} default~event-creation-event-creation-module~event-page-event-page-module~map-map-module~place-page-~c14e8f5b.js, default~event-creation-event-creation-module~event-page-event-page-module~map-map-module~place-page-~c14e8f5b.js.map (default~event-creation-event-creation-module~event-page-event-page-module~map-map-module~place-page-~c14e8f5b) 196 kB  [rendered]
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chunk {login-login-module} login-login-module.js, login-login-module.js.map (login-login-module) 14.3 kB  [rendered]
chunk {main} main.js, main.js.map (main) 380 kB [initial] [rendered]
chunk {map-map-module} map-map-module.js, map-map-module.js.map (map-map-module) 37 kB  [rendered]
chunk {place-page-place-page-module} place-page-place-page-module.js, place-page-place-page-module.js.map (place-page-place-page-module) 49.4 kB  [rendered]
chunk {polyfills} polyfills.js, polyfills.js.map (polyfills) 236 kB [initial] [rendered]
chunk {runtime} runtime.js, runtime.js.map (runtime) 9.63 kB [entry] [rendered]
chunk {styles} styles.js, styles.js.map (styles) 85.2 kB [initial] [rendered]
chunk {user-stats-user-stats-module} user-stats-user-stats-module.js, user-stats-user-stats-module.js.map (user-stats-user-stats-module) 14.2 kB  [rendered]
chunk {user_profile-userprofile-module} user_profile-userprofile-module.js, user_profile-userprofile-module.js.map (user_profile-userprofile-module) 23 kB  [rendered]
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> cordova.cmd build android
Checking Java JDK and Android SDK versions
ANDROID_SDK_ROOT=undefined (recommended setting)
ANDROID_HOME=C:\Users\zerok\AppData\Local\Android\sdk (DEPRECATED)
Subproject Path: CordovaLib
Subproject Path: app
> Task :app:preBuild UP-TO-DATE
> Task :CordovaLib:preBuild UP-TO-DATE
> Task :CordovaLib:preDebugBuild UP-TO-DATE
> Task :CordovaLib:checkDebugManifest UP-TO-DATE
> Task :CordovaLib:processDebugManifest UP-TO-DATE
> Task :app:preDebugBuild UP-TO-DATE
> Task :CordovaLib:compileDebugAidl NO-SOURCE
> Task :app:compileDebugAidl NO-SOURCE
> Task :CordovaLib:packageDebugRenderscript NO-SOURCE
> Task :app:compileDebugRenderscript UP-TO-DATE
> Task :app:checkDebugManifest UP-TO-DATE
> Task :app:generateDebugBuildConfig UP-TO-DATE
> Task :app:prepareLintJar UP-TO-DATE
> Task :app:generateDebugSources UP-TO-DATE
> Task :CordovaLib:compileDebugRenderscript UP-TO-DATE
> Task :CordovaLib:generateDebugBuildConfig UP-TO-DATE
> Task :CordovaLib:generateDebugResValues UP-TO-DATE
> Task :CordovaLib:generateDebugResources UP-TO-DATE
> Task :CordovaLib:packageDebugResources UP-TO-DATE
> Task :CordovaLib:generateDebugRFile UP-TO-DATE
> Task :CordovaLib:prepareLintJar UP-TO-DATE
> Task :CordovaLib:generateDebugSources UP-TO-DATE
> Task :CordovaLib:javaPreCompileDebug UP-TO-DATE
> Task :CordovaLib:compileDebugJavaWithJavac UP-TO-DATE
> Task :CordovaLib:processDebugJavaRes NO-SOURCE
> Task :CordovaLib:transformClassesAndResourcesWithPrepareIntermediateJarsForDebug UP-TO-DATE
> Task :app:javaPreCompileDebug UP-TO-DATE
> Task :app:mainApkListPersistenceDebug UP-TO-DATE
> Task :app:generateDebugResValues UP-TO-DATE
> Task :app:generateDebugResources UP-TO-DATE
> Task :app:mergeDebugResources
> Task :app:createDebugCompatibleScreenManifests UP-TO-DATE
> Task :app:processDebugManifest UP-TO-DATE
> Task :app:processDebugResources
> Task :app:compileDebugJavaWithJavac UP-TO-DATE
> Task :app:compileDebugNdk NO-SOURCE
> Task :app:compileDebugSources UP-TO-DATE
> Task :app:mergeDebugShaders UP-TO-DATE
> Task :app:compileDebugShaders UP-TO-DATE
> Task :app:generateDebugAssets UP-TO-DATE
> Task :CordovaLib:mergeDebugShaders UP-TO-DATE
> Task :CordovaLib:compileDebugShaders UP-TO-DATE
> Task :CordovaLib:generateDebugAssets UP-TO-DATE
> Task :CordovaLib:packageDebugAssets UP-TO-DATE
> Task :app:mergeDebugAssets UP-TO-DATE
> Task :app:validateSigningDebug UP-TO-DATE
> Task :app:signingConfigWriterDebug UP-TO-DATE
> Task :app:transformClassesWithDexBuilderForDebug UP-TO-DATE
> Task :app:transformDexArchiveWithDexMergerForDebug UP-TO-DATE
> Task :app:mergeDebugJniLibFolders UP-TO-DATE
> Task :CordovaLib:compileDebugNdk NO-SOURCE
> Task :CordovaLib:mergeDebugJniLibFolders UP-TO-DATE
> Task :CordovaLib:transformNativeLibsWithMergeJniLibsForDebug UP-TO-DATE
> Task :CordovaLib:transformNativeLibsWithIntermediateJniLibsForDebug UP-TO-DATE
> Task :app:transformNativeLibsWithMergeJniLibsForDebug UP-TO-DATE
> Task :app:processDebugJavaRes NO-SOURCE
> Task :app:transformResourcesWithMergeJavaResForDebug UP-TO-DATE
> Task :app:packageDebug
> Task :app:assembleDebug
> Task :app:cdvBuildDebug

BUILD SUCCESSFUL in 8s
42 actionable tasks: 3 executed, 39 up-to-date

Cordova插件列表：

cordova-plugin-camera 4.0.3 "Camera"
cordova-plugin-datepicker 0.9.3 "DatePicker"
cordova-plugin-device 2.0.2 "Device"
cordova-plugin-file 6.0.1 "File"
cordova-plugin-filepath 1.5.1 "cordova-plugin-filepath"
cordova-plugin-geolocation 4.0.1 "Geolocation"
cordova-plugin-ionic-keyboard 2.1.3 "cordova-plugin-ionic-keyboard"
cordova-plugin-ionic-webview 4.1.1 "cordova-plugin-ionic-webview"
cordova-plugin-native-spinner 1.1.3 "Native Spinner"
cordova-plugin-splashscreen 5.0.2 "Splashscreen"
cordova-plugin-statusbar 2.4.2 "StatusBar"
cordova-plugin-telerik-imagepicker 2.2.4 "ImagePicker"
cordova-plugin-whitelist 1.3.4 "Whitelist"
phonegap-plugin-multidex 1.0.0 "Multidex"

Package.json内容：

{
  "name": "dromous",
  "version": "0.0.1",
  "author": "ByGymApp",
  "homepage": "http://dromousapp.com/",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@agm/core": "^1.0.0-beta.5",
    "@angular/common": "~7.2.3",
    "@angular/compiler-cli": "^7.1.0",
    "@angular/core": "~7.2.3",
    "@angular/forms": "~7.2.3",
    "@angular/http": "~7.2.3",
    "@angular/platform-browser": "~7.2.3",
    "@angular/platform-browser-dynamic": "~7.2.3",
    "@angular/router": "~7.2.3",
    "@ionic-native/background-mode": "^5.2.0",
    "@ionic-native/core": "5.0.0",
    "@ionic-native/date-picker": "^5.2.0",
    "@ionic-native/geolocation": "^5.0.0",
    "@ionic-native/image-picker": "^5.2.0",
    "@ionic-native/spinner-dialog": "^5.0.0",
    "@ionic-native/splash-screen": "5.0.0",
    "@ionic-native/status-bar": "5.0.0",
    "@ionic-native/stripe": "^4.20.0",
    "@ionic/angular": "4.0.0",
    "@types/googlemaps": "^3.37.0",
    "@types/parse": "^2.1.0",
    "chart.js": "^2.7.3",
    "cordova-android": "^8.1.0",
    "cordova-plugin-datepicker": "0.9.3",
    "cordova-plugin-device": "^2.0.2",
    "cordova-plugin-geolocation": "^4.0.1",
    "cordova-plugin-ionic-keyboard": "^2.1.3",
    "cordova-plugin-ionic-webview": "^4.1.1",
    "cordova-plugin-native-spinner": "^1.1.3",
    "cordova-plugin-splashscreen": "^5.0.2",
    "cordova-plugin-statusbar": "^2.4.2",
    "cordova-plugin-telerik-imagepicker": "2.2.4",
    "cordova-plugin-whitelist": "^1.3.4",
    "cordova-res": "^0.7.0",
    "core-js": "^2.5.3",
    "crypto-js": "^3.1.9-1",
    "moment": "^2.24.0",
    "ng2-charts": "^1.6.0",
    "parse": "^2.1.0",
    "phonegap-plugin-multidex": "^1.0.0",
    "recursive-readdir": "^2.2.2",
    "rxjs": "6.4.0",
    "rxjs-compat": "^6.5.3",
    "sharp": "^0.23.1",
    "typescript": "^3.1.6",
    "whitelist": "^1.0.2",
    "zone.js": "^0.8.29"
  },
  "devDependencies": {
    "@angular-devkit/architect": "^0.13.0",
    "@angular-devkit/build-angular": "^0.12.4",
    "@angular-devkit/core": "^7.3.0",
    "@angular-devkit/schematics": "^7.3.0",
    "@angular/cli": "7.1.0",
    "@angular/compiler": "~7.2.3",
    "@angular/language-service": "~7.2.3",
    "@ionic/angular-toolkit": "^1.3.0",
    "@types/chartjs": "0.0.31",
    "@types/jasmine": "^3.3.8",
    "@types/jasminewd2": "^2.0.6",
    "@types/node": "^10.12.21",
    "codelyzer": "~4.5.0",
    "jasmine-core": "~3.3.0",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~4.0.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "~2.0.0",
    "karma-jasmine": "~2.0.1",
    "karma-jasmine-html-reporter": "^1.4.0",
    "node-sass": "^4.12.0",
    "protractor": "^5.4.2",
    "ts-node": "~8.0.2",
    "tslint": "~5.12.1"
  },
  "description": "An Ionic project",
  "cordova": {
    "plugins": {
      "cordova-plugin-geolocation": {
        "GEOLOCATION_USAGE_DESCRIPTION": "To locate you"
      },
      "cordova-plugin-statusbar": {},
      "cordova-plugin-device": {},
      "cordova-plugin-splashscreen": {},
      "cordova-plugin-ionic-keyboard": {},
      "cordova-plugin-native-spinner": {},
      "cordova-plugin-datepicker": {},
      "cordova-plugin-telerik-imagepicker": {},
      "cordova-plugin-ionic-webview": {
        "ANDROID_SUPPORT_ANNOTATIONS_VERSION": "27.+"
      },
      "cordova-plugin-whitelist": {}
    },
    "platforms": [
      "android"
    ]
  }
}

在这里，我将非常感谢您的帮助...

Answer 1

api 28及更高版本中的

默认情况下，cleartextTraffic是禁用的。因此，需要在清单中将其设置为true。加 android:usesCleartextTraffic="true"在清单标签中的application标签中。或定义网络配置文件在这里看到更多 https://developer.android.com/training/articles/security-config

Cordova应用突然间没有互联网连接；似乎没有任何解决办法

1 个答案: