打包
Steps to release ipa file for react native
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## 1. Clear caches of react.
> rm -rf $TMPDIR/react-*
## 2. Delete existed bundle file.（如果之前已经有了main.jsbundle，会删除掉，之前没有，会显示找不到）
> rm ios/main.jsbundle
## 3. Bundle main.jsbundle.
> react-native bundle --platform ios --dev false --entry-file index.ios.js --bundle-output ios/main.jsbundle
## 4. Release ipa file in xcode.
a) Open AppDelegate.m
注释掉： jsCodeLocation = [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index.ios" fallbackResource:nil];
打开： jsCodeLocation = [[NSBundle mainBundle] URLForResource:@"main" withExtension:@"jsbundle"];
c) The JS bundle will be built for dev or prod depending on your app's scheme (Debug = development build with warnings, Release = minified prod build with perf optimizations). To change the scheme navigate to Product > Scheme > Edit Scheme... in xcode and change Build Configuration between Debug and Release.
d) Confirm the 'Code Signing' settings.
e) Run Product > Archive.
IPA加密
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步骤一：使用Xcode打开项目
步骤二：Build Settings --> PROJECT --> Other C Flags --> Other C++ --> 添加以下编译选项
-mllvm -cxf -mllvm -equ -mllvm -fcf -mllvm -chenxify-prob=10 -mllvm -falsify-loop=2 -mllvm -falsify-prob=10”
步骤三：Build Settings --> TARGETS --> 将所有Enable Bitcode选项设为No
(注意: 本步骤仅针对Xcode7.0及7.0以上版本，其他版本不需要)
