Question

我正在尝试在iOS模拟器上运行NativeScript-Application。由于iTunes希望由Xcode 9.0或更高版本发布应用程序，因此我不得不从具有Xcode 7.3的NativeScript iOS v3.1升级（我的应用程序运行得很好）到具有Xcode 9.0的NativeScript iOS v4.2。现在可悲的是，我无法在任何设备上执行我的应用程序。它从头开始，我看到加载屏幕，然后遇到此错误：

CONSOLE ERROR file:///app/tns_modules/zone.js/dist/zone-node.js:419:27: Unhandled Promise rejection: UIScreen.mainScreen is not a function. (In 'UIScreen.mainScreen()', 'UIScreen.mainScreen' is an instance of UIScreen) ; Zone: angular ; Task: Promise.then ; Value: TypeError: UIScreen.mainScreen is not a function. (In 'UIScreen.mainScreen()', 'UIScreen.mainScreen' is an instance of UIScreen)
CONSOLE ERROR file:///app/tns_modules/zone.js/dist/zone-node.js:421:23: Error: Uncaught (in promise): TypeError: UIScreen.mainScreen is not a function. (In 'UIScreen.mainScreen()', 'UIScreen.mainScreen' is an instance of UIScreen)

当我使用NativeScript-iOS 3.1.0返回Xcode 7.3时，它再次正常运行。我不知道该如何解决这个问题。

我已经看到一些与UIScreen.MainScreen错误相关的问题（例如here），但是它们似乎与iOS原生相关，因此我无法从NativeScript中受到影响（至少我不知道该怎么做）

现在这是我的配置文件：

package.json：

{ //...
    "tns-ios": {
      "version": "4.2.0"
    }
  },
  "dependencies": {
    "@angular/common": "2.0.0-rc.4",
    "@angular/compiler": "2.0.0-rc.4",
    "@angular/core": "2.0.0-rc.4",
    "@angular/http": "2.0.0-rc.4",
    "@angular/platform-browser": "2.0.0-rc.4",
    "@angular/platform-browser-dynamic": "2.0.0-rc.4",
    "@angular/platform-server": "2.0.0-rc.4",
    "@angular/router": "3.0.0-beta.2",
    "nativescript-angular": "0.3.1-2016-08-04-787",
    "nativescript-calendar": "1.1.2",
    "nativescript-drop-down": "1.3.2",
    "nativescript-fresco": "1.0.6",
    "nativescript-ng2-translate": "1.1.1",
    "nativescript-social-share": "1.3.0",
    "nativescript-telerik-ui": "1.3.1",
    "ng2-translate": "2.2.2",
    "reflect-metadata": "^0.1.3",
    "rxjs": "5.0.0-beta.6",
    "tns-core-modules": "^2.4.4",
    "typescript": "^1.8.10",
    "url": "0.10.3",
    "zone.js": "0.6.12"
  },
  "devDependencies": {
    "babel-traverse": "6.10.4",
    "babel-types": "6.10.2",
    "babylon": "6.8.1",
    "filewalker": "0.1.3",
    "lazy": "1.0.11",
    "nativescript-dev-typescript": "0.3.2",
    "nativescript-dev-webpack": "0.0.20",
    "typescript": "1.8.10"
  }
}

build.xcconfig：

CODE_SIGN_IDENTITY = iPhone Developer;
DEVELOPMENT_TEAM = %Number%;
ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
IPHONEOS_DEPLOYMENT_TARGET = 8.1;

info.plist：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>CFBundleDevelopmentRegion</key>
    <string>en</string>
    <key>CFBundleDisplayName</key>
    <string>%App_Name%</string>
    <key>CFBundleExecutable</key>
    <string>${EXECUTABLE_NAME}</string>
    <key>CFBundleInfoDictionaryVersion</key>
    <string>6.0</string>
    <key>CFBundleName</key>
    <string>${PRODUCT_NAME}</string>
    <key>CFBundlePackageType</key>
    <string>APPL</string>
    <key>CFBundleShortVersionString</key>
    <string>2.0.9</string>
    <key>CFBundleSignature</key>
    <string>????</string>
    <key>CFBundleVersion</key>
    <string>2.0.9.4</string>
    <key>LSRequiresIPhoneOS</key>
    <true/>
    <key>UIRequiresFullScreen</key>
    <true/>
    <key>UIRequiredDeviceCapabilities</key>
    <array>
        <string>armv7</string>
    </array>
    <key>UISupportedInterfaceOrientations</key>
    <array>
        <string>UIInterfaceOrientationPortrait</string>
    </array>
    <key>UISupportedInterfaceOrientations~ipad</key>
    <array>
        <string>UIInterfaceOrientationPortrait</string>
        <string>UIInterfaceOrientationPortraitUpsideDown</string>
    </array>
    <key>CFBundleSupportedPlatforms</key>
    <array>
        <string>iPhoneOS</string>
    </array>
    <key>NSCalendarsUsageDescription</key>
    <string>my app needs access to the calendar to create new entries</string>
    <key>Minimum </key>
    <string></string>
    <key>NSAppTransportSecurity</key>
    <dict>
        <key>NSExceptionDomains</key>
        <dict>
            <key>localhost</key>
            <dict>
                <key>NSExceptionAllowsInsecureHTTPLoads</key>
                <true/>
                <key>NSIncludesSubdomains</key>
                <true/>
            </dict>
            <key>%ip%</key>
            <dict>
                <key>NSExceptionAllowsInsecureHTTPLoads</key>
                <true/>
                <key>NSIncludesSubdomains</key>
                <true/>
            </dict>
        </dict>
    </dict>
</dict>
</plist>

Answer 1

问题是您的tns-core-modules是较旧的版本（大约2年），并且正在使用已经弃用的iOS API，其中mainScreen是一个函数（现在是属性）。当旧tns-core-modules中的代码正在使用旧API时，您仅更新了与新iOS API一起使用的tns-ios运行时。用两个词-将不起作用，您将必须更新tns-core-modules和nativescript-angular +所有相关的依赖项。您可能还需要在此处和此处更新代码隐藏文件。

可以找到here的package/json依赖项的升级说明

从2.x.x here迁移时需要考虑的重大更改

另请参见tns-core-modules here

的更改日志

最后，here可以找到nativescript-angular的CHANGELOG

UIMainScreen不是函数错误NativeScript iOS

1 个答案: