RN调试配置参数

参考：
https://stackoverflow.com/questions/55723772/how-to-run-react-native-run-ios-with-specific-target

方式一、使用命令行启动

yarn ios等同于react-native run-ios, 等号=于空格等同，以下三个命令都可以

npx react-native run-ios --port=8081 --simulator="iPhone 8" --scheme="xxx"
react-native run-ios --port=8081 --simulator="iPhone 8" --scheme="xxx"
yarn ios --port=8081 --simulator="iPhone 8" --scheme="xxx" 

方式二：使用vs运行，只当前用户生效,在vscode里配置xxx/.vscode/launch.json：

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Debug iOS",
            "cwd": "${workspaceFolder}",
            "type": "reactnative",
            "request": "launch",
            "platform": "ios",
            "runArguments": [
                "--simulator=iPhone 8", // 模拟器名称
                "--scheme=xxx" // scheme名称
            ]
        }
    ]
}

可以配置的参数如下：
配置demo

{
name: 'run-ios',
description: 'builds your app and starts it on iOS simulator',
func: runIOS,
examples: [
{
desc: 'Run on a different simulator, e.g. iPhone 5',
cmd: 'react-native run-ios --simulator "iPhone 5"',
},
{
desc: 'Pass a non-standard location of iOS directory',
cmd: 'react-native run-ios --project-path "./app/ios"',
},
{

desc: "Run on a connected device, e.g. Max's iPhone",
cmd: 'react-native run-ios --device "Max\'s iPhone"',

},
{
desc: 'Run on the AppleTV simulator',
cmd: 'react-native run-ios --simulator "Apple TV" --scheme "helloworld-tvOS"',
}
],

配置说明

options: [{
    command: '--simulator [string]',
    description: 'Explicitly set simulator to use',
    default: 'iPhone 6',
  } , {
    command: '--configuration [string]',
    description: 'Explicitly set the scheme configuration to use',
  } , {
    command: '--scheme [string]',
    description: 'Explicitly set Xcode scheme to use',
  }, {
    command: '--project-path [string]',
    description: 'Path relative to project root where the Xcode project '
      + '(.xcodeproj) lives. The default is \'ios\'.',
    default: 'ios',
  }, {
    command: '--device [string]',
    description: 'Explicitly set device to use by name.  The value is not required if you have a single device connected.',
  }, {
    command: '--udid [string]',
    description: 'Explicitly set device to use by udid',
  }, {
    command: '--no-packager',
    description: 'Do not launch packager while building',
  }, {
    command: '--verbose',
    description: 'Do not use xcpretty even if installed',
  },{
    command: '--port [number]',
    default: process.env.RCT_METRO_PORT || 8081,
    parse: (val: string) => Number(val),
  }],
};