This project is based on react native. The aim of this project is helping you to create an app which has the ability to maintain your own mini-programs.
The whole app is divided into several mini-programs, inculdes bussiness logic and the resources.
The benifit is these mini-programs have tiny dependency logic with others(only share the basic infos, such as user name/token/id/avatar).
As we all know, react native creates a js bundle when it releasing an app. When app logic become more complicated, the size of bundle is increasing day by day. The size of the bundle will become the bottleneck when app cold-starting as the screen will be white for some seconds when it loading the js bundle.
To avoid this, in this project we divide the logic into multi-bundles:
-
basic bundle only includes the basic library of react native.
-
business bundle is used for each mini-program
When app startup, it will load the basic bundle in background. And the first screen is wrote with native code (java/ObjectiveC), that will speedup the start time.
When user click on the native UI and the screen changing to the one of the business screen. The business screen will load business bundle. The size is much smaller than the basic bundle and will load very fast.
-
Android app to debug with the bundle in assets. You need to change the return value of getUseDeveloperSupport to false, and comment the line apply from: "../../node_modules/react-native/react.gradle" in app/build.gradle
-
Using the bundle.sh to generate all the bundles. To generate the platform bundle you should use the script like below before install the app.
# to generate the ios bundle
./bundle.sh ios
# to generate the android bundle
./bundle.sh android
- To debug the iOS app and load the data from the local server, you should uncomment the code in two files
StartViewController.m
...
#if DEBUG
//#else <- uncomment this line
if (![_isBundleLoaded objectForKey:bundleName]) {
...
AppDelegate.m
...
#if DEBUG
// uncomment below 2 lines
// jsCodeLocation = [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index" fallbackResource:nil];
// #else
jsCodeLocation = [[NSBundle mainBundle] URLForResource:@"main" withExtension:@"jsbundle"];
#endif
...
after doing these 2 steps, start the react native server by command: react-native start and then press Command + R to build the iOS app
- Why I got error message Failed to execute 'importScripts' on 'WorkerGlobalScope' when using main.jsbundle on iOS simulator ?
A: That's because you want debug the offline bundle in chrome. Please Command + D to disable it, and then rerun the app with Command + R
- add test case
- UI editor tool
- hot load the business logic from cloud
https://github.com/yxyhail/MetroExample
https://juejin.im/post/5cee0095f265da1b6d4006ec
https://www.jianshu.com/p/3013e3b9ebd7
https://juejin.im/post/5ce79475f265da1b860861fd
https://github.com/smallnew/react-native-multibundler
Copyright 2020 Kevin Qian kevin.qian@msn.com
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