├── .babelrc ├── .buckconfig ├── .flowconfig ├── .gitattributes ├── .gitignore ├── .watchmanconfig ├── LICENSE ├── README.md ├── __tests__ ├── index.android.js └── index.ios.js ├── android ├── app │ ├── BUCK │ ├── build.gradle │ ├── proguard-rules.pro │ └── src │ │ └── main │ │ ├── AndroidManifest.xml │ │ ├── java │ │ └── com │ │ │ └── syncrender │ │ │ ├── MainActivity.java │ │ │ └── MainApplication.java │ │ └── res │ │ ├── mipmap-hdpi │ │ └── ic_launcher.png │ │ ├── mipmap-mdpi │ │ └── ic_launcher.png │ │ ├── mipmap-xhdpi │ │ └── ic_launcher.png │ │ ├── mipmap-xxhdpi │ │ └── ic_launcher.png │ │ └── values │ │ ├── strings.xml │ │ └── styles.xml ├── build.gradle ├── gradle.properties ├── gradle │ └── wrapper │ │ ├── gradle-wrapper.jar │ │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── keystores │ ├── BUCK │ └── debug.keystore.properties └── settings.gradle ├── app.json ├── index.android.js ├── index.ios.js ├── ios ├── RCCSyncRegistry.h ├── RCCSyncRegistry.m ├── RCCSyncRootView.h ├── RCCSyncRootView.m ├── SyncRender-tvOS │ └── Info.plist ├── SyncRender-tvOSTests │ └── Info.plist ├── SyncRender.xcodeproj │ ├── project.pbxproj │ └── xcshareddata │ │ └── xcschemes │ │ ├── SyncRender-tvOS.xcscheme │ │ └── SyncRender.xcscheme ├── SyncRender │ ├── AppDelegate.h │ ├── AppDelegate.m │ ├── Base.lproj │ │ └── LaunchScreen.xib │ ├── Images.xcassets │ │ └── AppIcon.appiconset │ │ │ └── Contents.json │ ├── Info.plist │ └── main.m ├── SyncRenderTests │ ├── Info.plist │ └── SyncRenderTests.m ├── WRNLabelManager.h ├── WRNLabelManager.m ├── WRNTestRenderModule.h └── WRNTestRenderModule.m ├── jsconfig.json ├── lib └── SyncRegistry.js └── package.json /.babelrc: -------------------------------------------------------------------------------- 1 | { 2 | "presets": ["react-native"] 3 | } 4 | -------------------------------------------------------------------------------- /.buckconfig: -------------------------------------------------------------------------------- 1 | 2 | [android] 3 | target = Google Inc.:Google APIs:23 4 | 5 | [maven_repositories] 6 | central = https://repo1.maven.org/maven2 7 | -------------------------------------------------------------------------------- /.flowconfig: -------------------------------------------------------------------------------- 1 | [ignore] 2 | ; We fork some components by platform 3 | .*/*[.]android.js 4 | 5 | ; Ignore "BUCK" generated dirs 6 | /\.buckd/ 7 | 8 | ; Ignore unexpected extra "@providesModule" 9 | .*/node_modules/.*/node_modules/fbjs/.* 10 | 11 | ; Ignore duplicate module providers 12 | ; For RN Apps installed via npm, "Libraries" folder is inside 13 | ; "node_modules/react-native" but in the source repo it is in the root 14 | .*/Libraries/react-native/React.js 15 | .*/Libraries/react-native/ReactNative.js 16 | 17 | [include] 18 | 19 | [libs] 20 | node_modules/react-native/Libraries/react-native/react-native-interface.js 21 | node_modules/react-native/flow 22 | flow/ 23 | 24 | [options] 25 | emoji=true 26 | 27 | module.system=haste 28 | 29 | munge_underscores=true 30 | 31 | module.name_mapper='^[./a-zA-Z0-9$_-]+\.\(bmp\|gif\|jpg\|jpeg\|png\|psd\|svg\|webp\|m4v\|mov\|mp4\|mpeg\|mpg\|webm\|aac\|aiff\|caf\|m4a\|mp3\|wav\|html\|pdf\)$' -> 'RelativeImageStub' 32 | 33 | suppress_type=$FlowIssue 34 | suppress_type=$FlowFixMe 35 | suppress_type=$FixMe 36 | 37 | suppress_comment=\\(.\\|\n\\)*\\$FlowFixMe\\($\\|[^(]\\|(\\(>=0\\.\\(4[0-9]\\|[1-3][0-9]\\|[0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*react_native[a-z,_]*\\)?)\\) 38 | suppress_comment=\\(.\\|\n\\)*\\$FlowIssue\\((\\(>=0\\.\\(4[0-9]\\|[1-3][0-9]\\|[0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*react_native[a-z,_]*\\)?)\\)?:? #[0-9]+ 39 | suppress_comment=\\(.\\|\n\\)*\\$FlowFixedInNextDeploy 40 | suppress_comment=\\(.\\|\n\\)*\\$FlowExpectedError 41 | 42 | unsafe.enable_getters_and_setters=true 43 | 44 | [version] 45 | ^0.49.1 46 | -------------------------------------------------------------------------------- /.gitattributes: -------------------------------------------------------------------------------- 1 | *.pbxproj -text 2 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # OSX 2 | # 3 | .DS_Store 4 | 5 | # Xcode 6 | # 7 | build/ 8 | *.pbxuser 9 | !default.pbxuser 10 | *.mode1v3 11 | !default.mode1v3 12 | *.mode2v3 13 | !default.mode2v3 14 | *.perspectivev3 15 | !default.perspectivev3 16 | xcuserdata 17 | *.xccheckout 18 | *.moved-aside 19 | DerivedData 20 | *.hmap 21 | *.ipa 22 | *.xcuserstate 23 | project.xcworkspace 24 | 25 | # Android/IntelliJ 26 | # 27 | build/ 28 | .idea 29 | .gradle 30 | local.properties 31 | *.iml 32 | 33 | # node.js 34 | # 35 | node_modules/ 36 | npm-debug.log 37 | yarn-error.log 38 | 39 | # BUCK 40 | buck-out/ 41 | \.buckd/ 42 | *.keystore 43 | 44 | # fastlane 45 | # 46 | # It is recommended to not store the screenshots in the git repo. Instead, use fastlane to re-generate the 47 | # screenshots whenever they are needed. 48 | # For more information about the recommended setup visit: 49 | # https://github.com/fastlane/fastlane/blob/master/fastlane/docs/Gitignore.md 50 | 51 | fastlane/report.xml 52 | fastlane/Preview.html 53 | fastlane/screenshots 54 | package-lock.json 55 | yarn.lock 56 | -------------------------------------------------------------------------------- /.watchmanconfig: -------------------------------------------------------------------------------- 1 | {} -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | The MIT License (MIT) 2 | 3 | Copyright (c) 2015 Wix.com 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # React Native Synchronous Render 2 | > Experiment and proof of concept 3 | 4 | ## Why 5 | 6 | Rendering in React Native (and React in general) is *asynchronous*. Updates made to React components from the JavaScript thread are batched together periodically and sent over the React Native bridge to be performed in the native realm (eventually on the main thread). This strategy brings performance benefits in the majority of cases but causes performance issues in some specific scenarios. 7 | 8 | One example is lists in React Native. When scrolling the list very fast, the scroll is handled in the native realm and new cells in the list must be created and populated with data as the user scrolls. Since rendering from JavaScript is asynchronous, we have to go twice over the bridge in order to layout a new cell. Once from native to JavaScript to perform the render and then back to update the native properties. This performance overhead of jumping between realms may cause fill-rate delays which users experience as flickering white cells for a short while. 9 | 10 | Another example is pushing a new sceen from native navigation solutions. The push takes place in the native realm, but rendering of the content takes place in the JavaScript realm. Once again since rendering from JavaScript is asynchronous, we have to go twice over the bridge in order to layout the screen. This performance overhead of jumping between realms may cause render delays which users experience as a white flicker for a short while. 11 | 12 | This is a conceptual problem which manifests itself as degraded user experience in React Native apps and prevents them from truly competing with pure native apps in some scenarios. 13 | 14 | ## What 15 | 16 | If we had some way to render components directly from the native realm without going to the JavaScript realm, we could use this ability to remove the overhead in the above scenarios. We will call this ability *synchronous rendering* since it avoids the inherent asynchronicity of React. We will only use this ability in the rare conditions where synchronicity in rendering is required to achieve improved user experience beacause, as we've said before, asynchronicity in render is usually a good thing. 17 | 18 | This entire approach is a bit tricky to implement because we *want* to specify the render logic in JavaScript. Using JSX to describe UI and layout is awesome, we don't want to miss that. So how can we specify the render logic in JavaScript, but perform it without JavaScript? 19 | 20 | ## API 21 | 22 | Before thinking about implementation, let's define the API. The normal React component tree is [connected](https://github.com/wix/rn-synchronous-render/blob/master/ios/SyncRender/AppDelegate.m#L14) to our app from native via an [`RCTRootView`](https://github.com/facebook/react-native/blob/master/React/Base/RCTRootView.h). The native root view is provided with the registered module name and some initial props. In JavaScript, a React component is registered in `AppRegistry` under the same module name: 23 | 24 | ```jsx 25 | class App extends Component { 26 | render() { 27 | return ( 28 | 29 | Welcome to the app 30 | 31 | ); 32 | } 33 | } 34 | 35 | AppRegistry.registerComponent('App', () => App); 36 | ``` 37 | 38 | In the native side: 39 | 40 | ```objc 41 | NSDictionary *props = @{}; 42 | RCTRootView *rootView = [[RCTRootView alloc] initWithBridge:_bridge 43 | moduleName:@"App" 44 | initialProperties:props]; 45 | ``` 46 | 47 | We'll define our new *synchronous* components in the same way. We'll have a new type of root view called `RCCSyncRootView` which will be provided in native with a registered module name and some initial props. In JavaScript, a React component will be registered in the exact same way under a new registry called `SyncRegistry`: 48 | 49 | ```jsx 50 | class SyncSnippet extends Component { 51 | render() { 52 | return ( 53 | 54 | I am synchronous 55 | 56 | ); 57 | } 58 | } 59 | 60 | SyncRegistry.registerComponent('SyncSnippet', () => SyncSnippet); 61 | ``` 62 | 63 | From the native side, the `RCCSyncRootView` would support two main actions: being created and updating its props. The main requirement we have, which is the novel thing with this approach, is that these two actions will complete in the native realm **without jumping over the bridge to JavaScript**! 64 | 65 | The API for the two actions will look like: 66 | 67 | ```objc 68 | NSDictionary *props = @{@"name": @"John Snow"}; 69 | RCCSyncRootView *rootView = [[RCCSyncRootView alloc] initWithBridge:_bridge 70 | moduleName:@"SyncSnippet" 71 | initialProperties:props]; 72 | [_someView addSubview:rootView]; 73 | ``` 74 | 75 | ``` 76 | NSDictionary *props = @{@"name": @"Mister Targaryen"}; 77 | [rootView updateProps:props]; 78 | ``` 79 | 80 | Keep in mind that `RCCSyncRootView` extends `RCTRootView` so it supports the same interface. 81 | 82 | ## How 83 | 84 | This repo contains a working proof of concept that satisfies the above requirements. How does it work? 85 | 86 | Since the React logic for the synchronous components is still defined in JavaScript, when the component is registered in `SyncRegistry` (usually on JavaScript initialization), we're going to create a serializable template recipe of how to instantiate it from native. This template will be serialized and sent over the bridge **once** during initialization. 87 | 88 | We'll store the recipe in native and when we need to create a new `RCCSyncRootView` or update its props, we'll go over the recipe in native and manually execute the low level [`UIManager`](https://github.com/facebook/react-native/blob/d81e5492974e831aba06e435e2b0504a680a20f8/React/Modules/RCTUIManager.m#L940) commands needed. If you're not familiar with `UIManager`, this is the core native module that actually creates and updates the native counterparts of the React components in React Native. When React reconciles the component tree in JavaScript, the diff is translated into `UIManager` commands that are sent over the bridge. This happens when React renders a component. These [unit tests](https://github.com/facebook/react/blob/50d905b0838857e76f7eb2f0875047c264f4c24e/src/renderers/native/__tests__/ReactNativeMount-test.js#L35) do a good job of explaining the spec in code. 89 | 90 | But how can we know which `UIManager` commands are needed? Well.. we can cheat. We can run the React Native `render` function in JavaScript manually during initialization and swizzle the `UIManager` temporarily so instead of actually sending the real commands over the bridge, it will just write them down in our recipe. You can see this [here](https://github.com/wix/rn-synchronous-render/blob/bcb75d4117e8560c8793c15afd5ba23dc460e526/lib/SyncRegistry.js#L19). 91 | 92 | ## Limitations 93 | 94 | When rendering a *synchronous* component in runtime, we're just following the recipe and not actually running the JavaScript render code. This means our synchronous component tree has to be 100% declarative. We're not allowed to place any business logic in it except passing around props. 95 | 96 | But what if our components require imperative business logic during render? We will have to implement this in native. I'm thinking about defining a new class of React Native components called "declarative components" which satisfy this requirement. Only these types of components could be used for synchronous render. We can eventually port all the core React Native components to be part of this family, just by moving any business logic they have in JavaScript to native. A bit time consuming but not difficult. 97 | 98 | ## Next Steps 99 | 100 | One of the most interesting use-cases relevant for applying this technique is lists. We already have an older working proof of concept for a list view in React Native which uses native row recycling and *synchronous* rendering - the code is available [here](https://github.com/wix/BindingListView/tree/better-bind). 101 | 102 | The new API presented here with a synchronous root view is much cleaner and general purpose. A nice exercise would be to take the list view proof of concept and reimplement it with synchronous root views for the rows. 103 | 104 | ## Thanks 105 | 106 | Thanks to @DanielZlotin and @bogobogo for helping bring the poc to life. 107 | -------------------------------------------------------------------------------- /__tests__/index.android.js: -------------------------------------------------------------------------------- 1 | import 'react-native'; 2 | import React from 'react'; 3 | import Index from '../index.android.js'; 4 | 5 | // Note: test renderer must be required after react-native. 6 | import renderer from 'react-test-renderer'; 7 | 8 | it('renders correctly', () => { 9 | const tree = renderer.create( 10 | 11 | ); 12 | }); 13 | -------------------------------------------------------------------------------- /__tests__/index.ios.js: -------------------------------------------------------------------------------- 1 | import 'react-native'; 2 | import React from 'react'; 3 | import Index from '../index.ios.js'; 4 | 5 | // Note: test renderer must be required after react-native. 6 | import renderer from 'react-test-renderer'; 7 | 8 | it('renders correctly', () => { 9 | const tree = renderer.create( 10 | 11 | ); 12 | }); 13 | -------------------------------------------------------------------------------- /android/app/BUCK: -------------------------------------------------------------------------------- 1 | # To learn about Buck see [Docs](https://buckbuild.com/). 2 | # To run your application with Buck: 3 | # - install Buck 4 | # - `npm start` - to start the packager 5 | # - `cd android` 6 | # - `keytool -genkey -v -keystore keystores/debug.keystore -storepass android -alias androiddebugkey -keypass android -dname "CN=Android Debug,O=Android,C=US"` 7 | # - `./gradlew :app:copyDownloadableDepsToLibs` - make all Gradle compile dependencies available to Buck 8 | # - `buck install -r android/app` - compile, install and run application 9 | # 10 | 11 | lib_deps = [] 12 | 13 | for jarfile in glob(['libs/*.jar']): 14 | name = 'jars__' + jarfile[jarfile.rindex('/') + 1: jarfile.rindex('.jar')] 15 | lib_deps.append(':' + name) 16 | prebuilt_jar( 17 | name = name, 18 | binary_jar = jarfile, 19 | ) 20 | 21 | for aarfile in glob(['libs/*.aar']): 22 | name = 'aars__' + aarfile[aarfile.rindex('/') + 1: aarfile.rindex('.aar')] 23 | lib_deps.append(':' + name) 24 | android_prebuilt_aar( 25 | name = name, 26 | aar = aarfile, 27 | ) 28 | 29 | android_library( 30 | name = "all-libs", 31 | exported_deps = lib_deps, 32 | ) 33 | 34 | android_library( 35 | name = "app-code", 36 | srcs = glob([ 37 | "src/main/java/**/*.java", 38 | ]), 39 | deps = [ 40 | ":all-libs", 41 | ":build_config", 42 | ":res", 43 | ], 44 | ) 45 | 46 | android_build_config( 47 | name = "build_config", 48 | package = "com.syncrender", 49 | ) 50 | 51 | android_resource( 52 | name = "res", 53 | package = "com.syncrender", 54 | res = "src/main/res", 55 | ) 56 | 57 | android_binary( 58 | name = "app", 59 | keystore = "//android/keystores:debug", 60 | manifest = "src/main/AndroidManifest.xml", 61 | package_type = "debug", 62 | deps = [ 63 | ":app-code", 64 | ], 65 | ) 66 | -------------------------------------------------------------------------------- /android/app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: "com.android.application" 2 | 3 | import com.android.build.OutputFile 4 | 5 | /** 6 | * The react.gradle file registers a task for each build variant (e.g. bundleDebugJsAndAssets 7 | * and bundleReleaseJsAndAssets). 8 | * These basically call `react-native bundle` with the correct arguments during the Android build 9 | * cycle. By default, bundleDebugJsAndAssets is skipped, as in debug/dev mode we prefer to load the 10 | * bundle directly from the development server. Below you can see all the possible configurations 11 | * and their defaults. If you decide to add a configuration block, make sure to add it before the 12 | * `apply from: "../../node_modules/react-native/react.gradle"` line. 13 | * 14 | * project.ext.react = [ 15 | * // the name of the generated asset file containing your JS bundle 16 | * bundleAssetName: "index.android.bundle", 17 | * 18 | * // the entry file for bundle generation 19 | * entryFile: "index.android.js", 20 | * 21 | * // whether to bundle JS and assets in debug mode 22 | * bundleInDebug: false, 23 | * 24 | * // whether to bundle JS and assets in release mode 25 | * bundleInRelease: true, 26 | * 27 | * // whether to bundle JS and assets in another build variant (if configured). 28 | * // See http://tools.android.com/tech-docs/new-build-system/user-guide#TOC-Build-Variants 29 | * // The configuration property can be in the following formats 30 | * // 'bundleIn${productFlavor}${buildType}' 31 | * // 'bundleIn${buildType}' 32 | * // bundleInFreeDebug: true, 33 | * // bundleInPaidRelease: true, 34 | * // bundleInBeta: true, 35 | * 36 | * // whether to disable dev mode in custom build variants (by default only disabled in release) 37 | * // for example: to disable dev mode in the staging build type (if configured) 38 | * devDisabledInStaging: true, 39 | * // The configuration property can be in the following formats 40 | * // 'devDisabledIn${productFlavor}${buildType}' 41 | * // 'devDisabledIn${buildType}' 42 | * 43 | * // the root of your project, i.e. where "package.json" lives 44 | * root: "../../", 45 | * 46 | * // where to put the JS bundle asset in debug mode 47 | * jsBundleDirDebug: "$buildDir/intermediates/assets/debug", 48 | * 49 | * // where to put the JS bundle asset in release mode 50 | * jsBundleDirRelease: "$buildDir/intermediates/assets/release", 51 | * 52 | * // where to put drawable resources / React Native assets, e.g. the ones you use via 53 | * // require('./image.png')), in debug mode 54 | * resourcesDirDebug: "$buildDir/intermediates/res/merged/debug", 55 | * 56 | * // where to put drawable resources / React Native assets, e.g. the ones you use via 57 | * // require('./image.png')), in release mode 58 | * resourcesDirRelease: "$buildDir/intermediates/res/merged/release", 59 | * 60 | * // by default the gradle tasks are skipped if none of the JS files or assets change; this means 61 | * // that we don't look at files in android/ or ios/ to determine whether the tasks are up to 62 | * // date; if you have any other folders that you want to ignore for performance reasons (gradle 63 | * // indexes the entire tree), add them here. Alternatively, if you have JS files in android/ 64 | * // for example, you might want to remove it from here. 65 | * inputExcludes: ["android/**", "ios/**"], 66 | * 67 | * // override which node gets called and with what additional arguments 68 | * nodeExecutableAndArgs: ["node"], 69 | * 70 | * // supply additional arguments to the packager 71 | * extraPackagerArgs: [] 72 | * ] 73 | */ 74 | 75 | apply from: "../../node_modules/react-native/react.gradle" 76 | 77 | /** 78 | * Set this to true to create two separate APKs instead of one: 79 | * - An APK that only works on ARM devices 80 | * - An APK that only works on x86 devices 81 | * The advantage is the size of the APK is reduced by about 4MB. 82 | * Upload all the APKs to the Play Store and people will download 83 | * the correct one based on the CPU architecture of their device. 84 | */ 85 | def enableSeparateBuildPerCPUArchitecture = false 86 | 87 | /** 88 | * Run Proguard to shrink the Java bytecode in release builds. 89 | */ 90 | def enableProguardInReleaseBuilds = false 91 | 92 | android { 93 | compileSdkVersion 23 94 | buildToolsVersion "23.0.1" 95 | 96 | defaultConfig { 97 | applicationId "com.syncrender" 98 | minSdkVersion 16 99 | targetSdkVersion 22 100 | versionCode 1 101 | versionName "1.0" 102 | ndk { 103 | abiFilters "armeabi-v7a", "x86" 104 | } 105 | } 106 | splits { 107 | abi { 108 | reset() 109 | enable enableSeparateBuildPerCPUArchitecture 110 | universalApk false // If true, also generate a universal APK 111 | include "armeabi-v7a", "x86" 112 | } 113 | } 114 | buildTypes { 115 | release { 116 | minifyEnabled enableProguardInReleaseBuilds 117 | proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro" 118 | } 119 | } 120 | // applicationVariants are e.g. debug, release 121 | applicationVariants.all { variant -> 122 | variant.outputs.each { output -> 123 | // For each separate APK per architecture, set a unique version code as described here: 124 | // http://tools.android.com/tech-docs/new-build-system/user-guide/apk-splits 125 | def versionCodes = ["armeabi-v7a":1, "x86":2] 126 | def abi = output.getFilter(OutputFile.ABI) 127 | if (abi != null) { // null for the universal-debug, universal-release variants 128 | output.versionCodeOverride = 129 | versionCodes.get(abi) * 1048576 + defaultConfig.versionCode 130 | } 131 | } 132 | } 133 | } 134 | 135 | dependencies { 136 | compile fileTree(dir: "libs", include: ["*.jar"]) 137 | compile "com.android.support:appcompat-v7:23.0.1" 138 | compile "com.facebook.react:react-native:+" // From node_modules 139 | } 140 | 141 | // Run this once to be able to run the application with BUCK 142 | // puts all compile dependencies into folder libs for BUCK to use 143 | task copyDownloadableDepsToLibs(type: Copy) { 144 | from configurations.compile 145 | into 'libs' 146 | } 147 | -------------------------------------------------------------------------------- /android/app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # By default, the flags in this file are appended to flags specified 3 | # in /usr/local/Cellar/android-sdk/24.3.3/tools/proguard/proguard-android.txt 4 | # You can edit the include path and order by changing the proguardFiles 5 | # directive in build.gradle. 6 | # 7 | # For more details, see 8 | # http://developer.android.com/guide/developing/tools/proguard.html 9 | 10 | # Add any project specific keep options here: 11 | 12 | # If your project uses WebView with JS, uncomment the following 13 | # and specify the fully qualified class name to the JavaScript interface 14 | # class: 15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 16 | # public *; 17 | #} 18 | 19 | # Disabling obfuscation is useful if you collect stack traces from production crashes 20 | # (unless you are using a system that supports de-obfuscate the stack traces). 21 | -dontobfuscate 22 | 23 | # React Native 24 | 25 | # Keep our interfaces so they can be used by other ProGuard rules. 26 | # See http://sourceforge.net/p/proguard/bugs/466/ 27 | -keep,allowobfuscation @interface com.facebook.proguard.annotations.DoNotStrip 28 | -keep,allowobfuscation @interface com.facebook.proguard.annotations.KeepGettersAndSetters 29 | -keep,allowobfuscation @interface com.facebook.common.internal.DoNotStrip 30 | 31 | # Do not strip any method/class that is annotated with @DoNotStrip 32 | -keep @com.facebook.proguard.annotations.DoNotStrip class * 33 | -keep @com.facebook.common.internal.DoNotStrip class * 34 | -keepclassmembers class * { 35 | @com.facebook.proguard.annotations.DoNotStrip *; 36 | @com.facebook.common.internal.DoNotStrip *; 37 | } 38 | 39 | -keepclassmembers @com.facebook.proguard.annotations.KeepGettersAndSetters class * { 40 | void set*(***); 41 | *** get*(); 42 | } 43 | 44 | -keep class * extends com.facebook.react.bridge.JavaScriptModule { *; } 45 | -keep class * extends com.facebook.react.bridge.NativeModule { *; } 46 | -keepclassmembers,includedescriptorclasses class * { native ; } 47 | -keepclassmembers class * { @com.facebook.react.uimanager.UIProp ; } 48 | -keepclassmembers class * { @com.facebook.react.uimanager.annotations.ReactProp ; } 49 | -keepclassmembers class * { @com.facebook.react.uimanager.annotations.ReactPropGroup ; } 50 | 51 | -dontwarn com.facebook.react.** 52 | 53 | # TextLayoutBuilder uses a non-public Android constructor within StaticLayout. 54 | # See libs/proxy/src/main/java/com/facebook/fbui/textlayoutbuilder/proxy for details. 55 | -dontwarn android.text.StaticLayout 56 | 57 | # okhttp 58 | 59 | -keepattributes Signature 60 | -keepattributes *Annotation* 61 | -keep class okhttp3.** { *; } 62 | -keep interface okhttp3.** { *; } 63 | -dontwarn okhttp3.** 64 | 65 | # okio 66 | 67 | -keep class sun.misc.Unsafe { *; } 68 | -dontwarn java.nio.file.* 69 | -dontwarn org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement 70 | -dontwarn okio.** 71 | -------------------------------------------------------------------------------- /android/app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 5 | 6 | 7 | 8 | 9 | 12 | 13 | 19 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | -------------------------------------------------------------------------------- /android/app/src/main/java/com/syncrender/MainActivity.java: -------------------------------------------------------------------------------- 1 | package com.syncrender; 2 | 3 | import com.facebook.react.ReactActivity; 4 | 5 | public class MainActivity extends ReactActivity { 6 | 7 | /** 8 | * Returns the name of the main component registered from JavaScript. 9 | * This is used to schedule rendering of the component. 10 | */ 11 | @Override 12 | protected String getMainComponentName() { 13 | return "SyncRender"; 14 | } 15 | } 16 | -------------------------------------------------------------------------------- /android/app/src/main/java/com/syncrender/MainApplication.java: -------------------------------------------------------------------------------- 1 | package com.syncrender; 2 | 3 | import android.app.Application; 4 | 5 | import com.facebook.react.ReactApplication; 6 | import com.facebook.react.ReactNativeHost; 7 | import com.facebook.react.ReactPackage; 8 | import com.facebook.react.shell.MainReactPackage; 9 | import com.facebook.soloader.SoLoader; 10 | 11 | import java.util.Arrays; 12 | import java.util.List; 13 | 14 | public class MainApplication extends Application implements ReactApplication { 15 | 16 | private final ReactNativeHost mReactNativeHost = new ReactNativeHost(this) { 17 | @Override 18 | public boolean getUseDeveloperSupport() { 19 | return BuildConfig.DEBUG; 20 | } 21 | 22 | @Override 23 | protected List getPackages() { 24 | return Arrays.asList( 25 | new MainReactPackage() 26 | ); 27 | } 28 | }; 29 | 30 | @Override 31 | public ReactNativeHost getReactNativeHost() { 32 | return mReactNativeHost; 33 | } 34 | 35 | @Override 36 | public void onCreate() { 37 | super.onCreate(); 38 | SoLoader.init(this, /* native exopackage */ false); 39 | } 40 | } 41 | -------------------------------------------------------------------------------- /android/app/src/main/res/mipmap-hdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/wix-incubator/rn-synchronous-render/44a8c0cf2484cac8a389593ccff7752410d5399a/android/app/src/main/res/mipmap-hdpi/ic_launcher.png -------------------------------------------------------------------------------- /android/app/src/main/res/mipmap-mdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/wix-incubator/rn-synchronous-render/44a8c0cf2484cac8a389593ccff7752410d5399a/android/app/src/main/res/mipmap-mdpi/ic_launcher.png -------------------------------------------------------------------------------- /android/app/src/main/res/mipmap-xhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/wix-incubator/rn-synchronous-render/44a8c0cf2484cac8a389593ccff7752410d5399a/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png -------------------------------------------------------------------------------- /android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/wix-incubator/rn-synchronous-render/44a8c0cf2484cac8a389593ccff7752410d5399a/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /android/app/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | SyncRender 3 | 4 | -------------------------------------------------------------------------------- /android/app/src/main/res/values/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /android/build.gradle: -------------------------------------------------------------------------------- 1 | // Top-level build file where you can add configuration options common to all sub-projects/modules. 2 | 3 | buildscript { 4 | repositories { 5 | jcenter() 6 | } 7 | dependencies { 8 | classpath 'com.android.tools.build:gradle:2.2.3' 9 | 10 | // NOTE: Do not place your application dependencies here; they belong 11 | // in the individual module build.gradle files 12 | } 13 | } 14 | 15 | allprojects { 16 | repositories { 17 | mavenLocal() 18 | jcenter() 19 | maven { 20 | // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm 21 | url "$rootDir/../node_modules/react-native/android" 22 | } 23 | } 24 | } 25 | -------------------------------------------------------------------------------- /android/gradle.properties: -------------------------------------------------------------------------------- 1 | # Project-wide Gradle settings. 2 | 3 | # IDE (e.g. Android Studio) users: 4 | # Gradle settings configured through the IDE *will override* 5 | # any settings specified in this file. 6 | 7 | # For more details on how to configure your build environment visit 8 | # http://www.gradle.org/docs/current/userguide/build_environment.html 9 | 10 | # Specifies the JVM arguments used for the daemon process. 11 | # The setting is particularly useful for tweaking memory settings. 12 | # Default value: -Xmx10248m -XX:MaxPermSize=256m 13 | # org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8 14 | 15 | # When configured, Gradle will run in incubating parallel mode. 16 | # This option should only be used with decoupled projects. More details, visit 17 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects 18 | # org.gradle.parallel=true 19 | 20 | android.useDeprecatedNdk=true 21 | -------------------------------------------------------------------------------- /android/gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/wix-incubator/rn-synchronous-render/44a8c0cf2484cac8a389593ccff7752410d5399a/android/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /android/gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | distributionBase=GRADLE_USER_HOME 2 | distributionPath=wrapper/dists 3 | zipStoreBase=GRADLE_USER_HOME 4 | zipStorePath=wrapper/dists 5 | distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip 6 | -------------------------------------------------------------------------------- /android/gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 10 | DEFAULT_JVM_OPTS="" 11 | 12 | APP_NAME="Gradle" 13 | APP_BASE_NAME=`basename "$0"` 14 | 15 | # Use the maximum available, or set MAX_FD != -1 to use that value. 16 | MAX_FD="maximum" 17 | 18 | warn ( ) { 19 | echo "$*" 20 | } 21 | 22 | die ( ) { 23 | echo 24 | echo "$*" 25 | echo 26 | exit 1 27 | } 28 | 29 | # OS specific support (must be 'true' or 'false'). 30 | cygwin=false 31 | msys=false 32 | darwin=false 33 | case "`uname`" in 34 | CYGWIN* ) 35 | cygwin=true 36 | ;; 37 | Darwin* ) 38 | darwin=true 39 | ;; 40 | MINGW* ) 41 | msys=true 42 | ;; 43 | esac 44 | 45 | # For Cygwin, ensure paths are in UNIX format before anything is touched. 46 | if $cygwin ; then 47 | [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"` 48 | fi 49 | 50 | # Attempt to set APP_HOME 51 | # Resolve links: $0 may be a link 52 | PRG="$0" 53 | # Need this for relative symlinks. 54 | while [ -h "$PRG" ] ; do 55 | ls=`ls -ld "$PRG"` 56 | link=`expr "$ls" : '.*-> \(.*\)$'` 57 | if expr "$link" : '/.*' > /dev/null; then 58 | PRG="$link" 59 | else 60 | PRG=`dirname "$PRG"`"/$link" 61 | fi 62 | done 63 | SAVED="`pwd`" 64 | cd "`dirname \"$PRG\"`/" >&- 65 | APP_HOME="`pwd -P`" 66 | cd "$SAVED" >&- 67 | 68 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 69 | 70 | # Determine the Java command to use to start the JVM. 71 | if [ -n "$JAVA_HOME" ] ; then 72 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 73 | # IBM's JDK on AIX uses strange locations for the executables 74 | JAVACMD="$JAVA_HOME/jre/sh/java" 75 | else 76 | JAVACMD="$JAVA_HOME/bin/java" 77 | fi 78 | if [ ! -x "$JAVACMD" ] ; then 79 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 80 | 81 | Please set the JAVA_HOME variable in your environment to match the 82 | location of your Java installation." 83 | fi 84 | else 85 | JAVACMD="java" 86 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 87 | 88 | Please set the JAVA_HOME variable in your environment to match the 89 | location of your Java installation." 90 | fi 91 | 92 | # Increase the maximum file descriptors if we can. 93 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then 94 | MAX_FD_LIMIT=`ulimit -H -n` 95 | if [ $? -eq 0 ] ; then 96 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 97 | MAX_FD="$MAX_FD_LIMIT" 98 | fi 99 | ulimit -n $MAX_FD 100 | if [ $? -ne 0 ] ; then 101 | warn "Could not set maximum file descriptor limit: $MAX_FD" 102 | fi 103 | else 104 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 105 | fi 106 | fi 107 | 108 | # For Darwin, add options to specify how the application appears in the dock 109 | if $darwin; then 110 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 111 | fi 112 | 113 | # For Cygwin, switch paths to Windows format before running java 114 | if $cygwin ; then 115 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 116 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 117 | 118 | # We build the pattern for arguments to be converted via cygpath 119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 120 | SEP="" 121 | for dir in $ROOTDIRSRAW ; do 122 | ROOTDIRS="$ROOTDIRS$SEP$dir" 123 | SEP="|" 124 | done 125 | OURCYGPATTERN="(^($ROOTDIRS))" 126 | # Add a user-defined pattern to the cygpath arguments 127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 129 | fi 130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 131 | i=0 132 | for arg in "$@" ; do 133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 135 | 136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 138 | else 139 | eval `echo args$i`="\"$arg\"" 140 | fi 141 | i=$((i+1)) 142 | done 143 | case $i in 144 | (0) set -- ;; 145 | (1) set -- "$args0" ;; 146 | (2) set -- "$args0" "$args1" ;; 147 | (3) set -- "$args0" "$args1" "$args2" ;; 148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 154 | esac 155 | fi 156 | 157 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules 158 | function splitJvmOpts() { 159 | JVM_OPTS=("$@") 160 | } 161 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS 162 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME" 163 | 164 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@" 165 | -------------------------------------------------------------------------------- /android/gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 12 | set DEFAULT_JVM_OPTS= 13 | 14 | set DIRNAME=%~dp0 15 | if "%DIRNAME%" == "" set DIRNAME=. 16 | set APP_BASE_NAME=%~n0 17 | set APP_HOME=%DIRNAME% 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windowz variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | if "%@eval[2+2]" == "4" goto 4NT_args 53 | 54 | :win9xME_args 55 | @rem Slurp the command line arguments. 56 | set CMD_LINE_ARGS= 57 | set _SKIP=2 58 | 59 | :win9xME_args_slurp 60 | if "x%~1" == "x" goto execute 61 | 62 | set CMD_LINE_ARGS=%* 63 | goto execute 64 | 65 | :4NT_args 66 | @rem Get arguments from the 4NT Shell from JP Software 67 | set CMD_LINE_ARGS=%$ 68 | 69 | :execute 70 | @rem Setup the command line 71 | 72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 73 | 74 | @rem Execute Gradle 75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 76 | 77 | :end 78 | @rem End local scope for the variables with windows NT shell 79 | if "%ERRORLEVEL%"=="0" goto mainEnd 80 | 81 | :fail 82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 83 | rem the _cmd.exe /c_ return code! 84 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 85 | exit /b 1 86 | 87 | :mainEnd 88 | if "%OS%"=="Windows_NT" endlocal 89 | 90 | :omega 91 | -------------------------------------------------------------------------------- /android/keystores/BUCK: -------------------------------------------------------------------------------- 1 | keystore( 2 | name = "debug", 3 | properties = "debug.keystore.properties", 4 | store = "debug.keystore", 5 | visibility = [ 6 | "PUBLIC", 7 | ], 8 | ) 9 | -------------------------------------------------------------------------------- /android/keystores/debug.keystore.properties: -------------------------------------------------------------------------------- 1 | key.store=debug.keystore 2 | key.alias=androiddebugkey 3 | key.store.password=android 4 | key.alias.password=android 5 | -------------------------------------------------------------------------------- /android/settings.gradle: -------------------------------------------------------------------------------- 1 | rootProject.name = 'SyncRender' 2 | 3 | include ':app' 4 | -------------------------------------------------------------------------------- /app.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "SyncRender", 3 | "displayName": "SyncRender" 4 | } -------------------------------------------------------------------------------- /index.android.js: -------------------------------------------------------------------------------- 1 | /** 2 | * Sample React Native App 3 | * https://github.com/facebook/react-native 4 | * @flow 5 | */ 6 | 7 | import React, { Component } from 'react'; 8 | import { 9 | AppRegistry, 10 | StyleSheet, 11 | Text, 12 | View 13 | } from 'react-native'; 14 | 15 | export default class SyncRender extends Component { 16 | render() { 17 | return ( 18 | 19 | 20 | Welcome to React Native! 21 | 22 | 23 | To get started, edit index.android.js 24 | 25 | 26 | Double tap R on your keyboard to reload,{'\n'} 27 | Shake or press menu button for dev menu 28 | 29 | 30 | ); 31 | } 32 | } 33 | 34 | const styles = StyleSheet.create({ 35 | container: { 36 | flex: 1, 37 | justifyContent: 'center', 38 | alignItems: 'center', 39 | backgroundColor: '#F5FCFF', 40 | }, 41 | welcome: { 42 | fontSize: 20, 43 | textAlign: 'center', 44 | margin: 10, 45 | }, 46 | instructions: { 47 | textAlign: 'center', 48 | color: '#333333', 49 | marginBottom: 5, 50 | }, 51 | }); 52 | 53 | AppRegistry.registerComponent('SyncRender', () => SyncRender); 54 | -------------------------------------------------------------------------------- /index.ios.js: -------------------------------------------------------------------------------- 1 | import React, { Component } from 'react'; 2 | import { AppRegistry, TextInput, Button, requireNativeComponent, NativeModules, View } from 'react-native'; 3 | import SyncRegistry from './lib/SyncRegistry'; 4 | 5 | const WRNLabel = requireNativeComponent('WRNLabel', null); 6 | const WRNTestRender = NativeModules.WRNTestRenderModule; 7 | 8 | class App extends Component { 9 | render() { 10 | return ( 11 | 12 |