android

1.android /app/build.gradle

project.ext.react = [

    entryFile: "index.android.js"

]

2.android/app/src/main/java/com/项目名/MainApplication.java

@Override

 protected String getJSMainModuleName() {

   return "index.android";

 }

ios

ios/项目名/AppDelegate.m

jsCodeLocation = [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index.ios" fallbackResource:nil];