build package

react-native bundle --platform ios --dev false --entry-file index.ios.js --bundle-output main.jsbundle --assets-dest main.jsbundle

change AppDelegate.m

jsCodeLocation = [[NSBundle mainBundle] URLForResource:@"main" withExtension:@"jsbundle"];

copy main.jsbundle file to XCode project

notice: select Create folder references

problem

• 项目如果设置了__DV__，打离线包的时候会出错

Property left of AssignmentExpression expected node to be of a type ["LVal"] but instead got "BooleanLiteral"

• 如果项目没有更改AppDelegate， 会报没有设置url之类的错误

No script URL provided. Make sure the packager is running or you have embedded a JS bundle in your application

• 如果每次打的Release包都一样，Xcode选择Project > Clean，然后重新编译即可