对于RN 0.64.2，配置位于node_modules/@react-native-community/cli-platform-ios/build/commands/runIOS/index.js，您可以修改文件中的默认模拟器

对于RN 0.64.2，配置位于node_modules/@react-native-community/cli-platform-ios/build/commands/runIOS/index.js，您可以修改文件中的默认模拟器

使用——simulator标志指定一个模拟器。

以下是iOS 14.0之后可用的设备:

npx react-native run-ios --simulator="iPhone 8"
npx react-native run-ios --simulator="iPhone 8 Plus"
npx react-native run-ios --simulator="iPhone 11"
npx react-native run-ios --simulator="iPhone 11 Pro"
npx react-native run-ios --simulator="iPhone 11 Pro Max"
npx react-native run-ios --simulator="iPhone SE (2nd generation)"
npx react-native run-ios --simulator="iPhone 12 mini"
npx react-native run-ios --simulator="iPhone 12"
npx react-native run-ios --simulator="iPhone 12 Pro"
npx react-native run-ios --simulator="iPhone 12 Pro Max"
npx react-native run-ios --simulator="iPhone 13 Pro"
npx react-native run-ios --simulator="iPhone 13 Pro Max"
npx react-native run-ios --simulator="iPhone 13 mini"
npx react-native run-ios --simulator="iPhone 13"
npx react-native run-ios --simulator="iPod touch (7th generation)"
npx react-native run-ios --simulator="iPad Pro (9.7-inch)"
npx react-native run-ios --simulator="iPad (9th generation)"
npx react-native run-ios --simulator="iPad Air (4th generation)"
npx react-native run-ios --simulator="iPad Pro (11-inch) (3rd generation)"
npx react-native run-ios --simulator="iPad Pro (12.9-inch) (5th generation)"
npx react-native run-ios --simulator="iPad mini (6th generation)"

列出所有可用的iOS设备:

xcrun simctl list devices

目前没有办法设置默认值。

React Native Docs:在模拟器上运行

这里是改变iOS模拟器的新路径，你只需要改变

default: 'iPhone 6' or something else 

路径:

<project_root>/node_modules/@react-native-community/cli/build/commands/runIOS/runIOS.js

修改/node_modules/react-native/local-cli/runIOS/findMatchingSimulator.js的行代码

线55

  if (
    simulator.availability !== '(available)' &&
    simulator.isAvailable !== true
  ) {
    continue;
  }

取代的:

   if (
                simulator.availability !== '(available)' &&
                simulator.isAvailable !== true
              ) {
                continue;
     }

您可以在~/处创建别名。bash_profile文件:

alias rn-ios="react-native run-ios——模拟器\"iPhone 5s (10.0)\""

然后使用创建的别名运行react-native:

rn-ios美元