RN0.30.0+不需要修改IP地址
Xcode 打印
Jan 11 17:47:48 AwesomeProject[5347] <Error>: CGContextSaveGState: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.
Jan 11 17:47:48 AwesomeProject[5347] <Error>: CGContextTranslateCTM: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.
Jan 11 17:47:48 AwesomeProject[5347] <Error>: CGContextRestoreGState: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.
2016-01-11 17:47:48.725 [error][tid:main] Could not connect to development server.
Ensure the following:
- Node server is running and available on the same network - run 'npm start' from react-native root
- Node server URL is correctly set in AppDelegate
URL: http://localhost:8081/index.ios.bundle?platform=ios&dev=true
解决:
在AppDelegate.m文件中,把一下代码中的localhost改为你电脑的IP地址，并且保证连接的是同一个网络(例如:连接同一个路由的网络)。
jsCodeLocation = [NSURL URLWithString:@"http://localhost:8081/index.ios.bundle?platform=ios&dev=true"];
也许你会遇到另外一个问题
WebSocket connection failed with error Error Domain=NSPOSIXErrorDomain Code=61 "Connection refused"
请跳转到http://www.jianshu.com/p/2c5e738cecca 查看(因为本人这两个问题不是同时出现，所以分开写)。
参考
Running On Device
Test your React Native app on your iPhone or iPad
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