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viewmode=contents">http://blog.csdn.net/minimicall?viewmode=contents

在上一节中，我们通过一个相冊的制作来学习了React Native编写。这一节我们须要開始学习React Native的源代码。

学习源代码，从编译源代码開始。

首先。我们须要把代码从github中克隆下来。

  1. https://github.com/facebook/react-native.git

然后，我们能够切换到它的稳定分支，2016-03-30是我的操作时间，这个时候0.23-stable是最新的稳定版本号。

  1. git checkout -b 0.23-stable remotes/origin/0.23-stable

我们首先升级一下我们的react-native。由于等下创建项目最好使用最新版本号的。

首先。我们须要查询最新版本号：

  1. nam info react-native

得到最新版本号是0.22.2

  1. npm install --save react-native@0.22.2

接下来，创建一个项目：

  1. react-native init videolegend

好，等待漫长的初始化过程。

完事之后，打开项目顶层的package.json文件：

  1. {
  2.   "name": "videolegend",
  3.   "version": "0.0.1",
  4.   "private": true,
  5.   "scripts": {
  6.     "start": "node node_modules/react-native/local-cli/cli.js start"
  7.   },
  8.   "dependencies": {
  9.     "react": "^0.14.8",
  10.     "react-native": "^0.22.2"
  11.   }
  12. }

能够看出我们的一个版本号的基本信息。

接下来，我们来进行源代码的编译。编译源代码。官网有一个页面，我们的过程呢，也是基于它的，但假设你全然基于它，那么你是会吃亏的。

所以，为什么我要写一篇文章出来，给大家作为參考。

官网源代码编译地址：点击打开链接

前置条件：

1、SDK ： compileSdkVersion 23

2、SDK build tools : 23.0.1

3、Android Support Repository >=17

4 、 NDK (4.8哦就是 ndk-r10b,，4.9都不行,会坑出非常多问题，假设NDK版本号不正确。）

使用AndroidStudio打开项目。

1、项目顶层build.grade的配置：

  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:1.3.1'
  9. //加以下这一行
  10.         classpath 'de.undercouch:gradle-download-task:2.0.0'
  11.         // NOTE: Do not place your application dependencies here; they belong
  12.         // in the individual module build.gradle files
  13.     }
  14. }
  15.  
  16. allprojects {
  17.     repositories {
  18.         mavenLocal()
  19.         jcenter()
  20.         maven {
  21.             // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
  22.             url "$projectDir/../../node_modules/react-native/android"
  23.         }
  24.     }
  25. }

2、加入ReactAndroid模块，在顶层的setting.grade文件里。配置例如以下：

  1. rootProject.name = 'videolegend'
  2.  
  3. include ':app'
  4. include ':ReactAndroid'
  5. project(':ReactAndroid').projectDir = new File('/Users/zengjinlong/workplace/react/reactnativesrc/react-native/ReactAndroid')

那个绝对文件夹是我的，你仅仅须要改成你的即可。

3、更改项目依赖：在应用模块的build.gradle里面更改依赖部分：

  1. dependencies {
  2.     compile fileTree(dir: "libs", include: ["*.jar"])
  3.     compile "com.android.support:appcompat-v7:23.0.1"
  4.     //compile "com.facebook.react:react-native:+"  // From node_modules
  5.     compile project(':ReactAndroid')
  6. }

凝视掉原来的，更改为模块依赖。

官网到这里。就叫你能够run啦。呵呵，too young too simple。

首先。ReactAndroid里面的有些下载任务你给它再多时间都不可能完毕。所以。

。。

我们须要离线下载好。

然后更改其脚本，进行编译。

1、离线下载好

boost_1_57_0

double_conversion-1.1.1

folly-deprecate-dynamic-initializer

glog-0.3.3

jsc头文件

然后依照文件夹放到ReactAndroid的build/downloads/文件夹以下。大概有450M内容。

2、改动ReactAndroid的build.grade脚本

主要是删掉那些下载任务的脚本。直接进入拷贝任务和编译任务。

来，我们来感受一下改动前和改动后的差别。

首先。改动前：

  1. // Copyright 2015-present Facebook. All Rights Reserved.
  2.  
  3. apply plugin: 'com.android.library'
  4. apply plugin: 'maven'
  5.  
  6. apply plugin: 'de.undercouch.download'
  7.  
  8. import de.undercouch.gradle.tasks.download.Download
  9. import org.apache.tools.ant.taskdefs.condition.Os
  10. import org.apache.tools.ant.filters.ReplaceTokens
  11.  
  12. // We download various C++ open-source dependencies into downloads.
  13. // We then copy both the downloaded code and our custom makefiles and headers into third-party-ndk.
  14. // After that we build native code from src/main/jni with module path pointing at third-party-ndk.
  15.  
  16. def downloadsDir = new File("$buildDir/downloads")
  17. def thirdPartyNdkDir = new File("$buildDir/third-party-ndk")
  18.  
  19. task createNativeDepsDirectories {
  20.     downloadsDir.mkdirs()
  21.     thirdPartyNdkDir.mkdirs()
  22. }
  23.  //下载boost 超级慢。所以自己下好吧
  24. task downloadBoost(dependsOn: createNativeDepsDirectories, type: Download) {
  25.     // Use ZIP version as it's faster this way to selectively extract some parts of the archive
  26.     src 'https://downloads.sourceforge.net/project/boost/boost/1.57.0/boost_1_57_0.zip'
  27.     // alternative
  28.     // src 'http://mirror.nienbo.com/boost/boost_1_57_0.zip'
  29.     onlyIfNewer true
  30.     overwrite false
  31.     dest new File(downloadsDir, 'boost_1_57_0.zip')
  32. }
  33.   //下载好boost后，复制到指定文件夹
  34. task prepareBoost(dependsOn: downloadBoost, type: Copy) {
  35.     from zipTree(downloadBoost.dest)
  36.     from 'src/main/jni/third-party/boost/Android.mk'
  37.     include 'boost_1_57_0/boost/**/*.hpp', 'Android.mk'
  38.     into "$thirdPartyNdkDir/boost"
  39. }
  40. //下载
  41. task downloadDoubleConversion(dependsOn: createNativeDepsDirectories, type: Download) {
  42.     src 'https://github.com/google/double-conversion/archive/v1.1.1.tar.gz'
  43.     onlyIfNewer true
  44.     overwrite false
  45.     dest new File(downloadsDir, 'double-conversion-1.1.1.tar.gz')
  46. }
  47. //
  48. task prepareDoubleConversion(dependsOn: downloadDoubleConversion, type: Copy) {
  49.     from tarTree(downloadDoubleConversion.dest)
  50.     from 'src/main/jni/third-party/double-conversion/Android.mk'
  51.     include 'double-conversion-1.1.1/src/**/*', 'Android.mk'
  52.     filesMatching('*/src/**/*', {fname -> fname.path = "double-conversion/${fname.name}"})
  53.     includeEmptyDirs = false
  54.     into "$thirdPartyNdkDir/double-conversion"
  55. }
  56.  
  57. task downloadFolly(dependsOn: createNativeDepsDirectories, type: Download) {
  58.     src 'https://github.com/facebook/folly/archive/deprecate-dynamic-initializer.tar.gz'
  59.     onlyIfNewer true
  60.     overwrite false
  61.     dest new File(downloadsDir, 'folly-deprecate-dynamic-initializer.tar.gz');
  62. }
  63.  
  64. task prepareFolly(dependsOn: downloadFolly, type: Copy) {
  65.     from tarTree(downloadFolly.dest)
  66.     from 'src/main/jni/third-party/folly/Android.mk'
  67.     include 'folly-deprecate-dynamic-initializer/folly/**/*', 'Android.mk'
  68.     eachFile {fname -> fname.path = (fname.path - "folly-deprecate-dynamic-initializer/")}
  69.     includeEmptyDirs = false
  70.     into "$thirdPartyNdkDir/folly"
  71. }
  72.  
  73. task downloadGlog(dependsOn: createNativeDepsDirectories, type: Download) {
  74.     src 'https://github.com/google/glog/archive/v0.3.3.tar.gz'
  75.     onlyIfNewer true
  76.     overwrite false
  77.     dest new File(downloadsDir, 'glog-0.3.3.tar.gz')
  78. }
  79.  
  80. // Prepare glog sources to be compiled, this task will perform steps that normally shoudl've been
  81. // executed by automake. This way we can avoid dependencies on make/automake
  82. task prepareGlog(dependsOn: downloadGlog, type: Copy) {
  83.     from tarTree(downloadGlog.dest)
  84.     from 'src/main/jni/third-party/glog/'
  85.     include 'glog-0.3.3/src/**/*', 'Android.mk', 'config.h'
  86.     includeEmptyDirs = false
  87.     filesMatching('**/*.h.in') {
  88.         filter(ReplaceTokens, tokens: [
  89.                 ac_cv_have_unistd_h: '1',
  90.                 ac_cv_have_stdint_h: '1',
  91.                 ac_cv_have_systypes_h: '1',
  92.                 ac_cv_have_inttypes_h: '1',
  93.                 ac_cv_have_libgflags: '0',
  94.                 ac_google_start_namespace: 'namespace google {',
  95.                 ac_cv_have_uint16_t: '1',
  96.                 ac_cv_have_u_int16_t: '1',
  97.                 ac_cv_have___uint16: '0',
  98.                 ac_google_end_namespace: '}',
  99.                 ac_cv_have___builtin_expect: '1',
  100.                 ac_google_namespace: 'google',
  101.                 ac_cv___attribute___noinline: '__attribute__ ((noinline))',
  102.                 ac_cv___attribute___noreturn: '__attribute__ ((noreturn))',
  103.                 ac_cv___attribute___printf_4_5: '__attribute__((__format__ (__printf__, 4, 5)))'
  104.         ])
  105.         it.path = (it.name - '.in')
  106.     }
  107.     into "$thirdPartyNdkDir/glog"
  108. }
  109.  
  110. task downloadJSCHeaders(type: Download) {
  111.     def jscAPIBaseURL = 'https://svn.webkit.org/repository/webkit/!svn/bc/174650/trunk/Source/JavaScriptCore/API/'
  112.     def jscHeaderFiles = ['JSBase.h', 'JSContextRef.h', 'JSObjectRef.h', 'JSRetainPtr.h', 'JSStringRef.h', 'JSValueRef.h', 'WebKitAvailability.h']
  113.     def output = new File(downloadsDir, 'jsc')
  114.     output.mkdirs()
  115.     src(jscHeaderFiles.collect { headerName -> "$jscAPIBaseURL$headerName" })
  116.     onlyIfNewer true
  117.     overwrite false
  118.     dest output
  119. }
  120.  
  121. // Create Android.mk library module based on so files from mvn + include headers fetched from webkit.org
  122. task prepareJSC(dependsOn: downloadJSCHeaders) << {
  123.     copy {
  124.         from zipTree(configurations.compile.fileCollection { dep -> dep.name == 'android-jsc' }.singleFile)
  125.         from {downloadJSCHeaders.dest}
  126.         from 'src/main/jni/third-party/jsc/Android.mk'
  127.         include 'jni/**/*.so', '*.h', 'Android.mk'
  128.         filesMatching('*.h', { fname -> fname.path = "JavaScriptCore/${fname.path}"})
  129.         into "$thirdPartyNdkDir/jsc";
  130.     }
  131. }
  132.  
  133. def getNdkBuildName() {
  134.     if (Os.isFamily(Os.FAMILY_WINDOWS)) {
  135.         return "ndk-build.cmd"
  136.     } else {
  137.         return "ndk-build"
  138.     }
  139. }
  140.  
  141. def findNdkBuildFullPath() {
  142.     // we allow to provide full path to ndk-build tool
  143.     if (hasProperty('ndk.command')) {
  144.         return property('ndk.command')
  145.     }
  146.     // or just a path to the containing directory
  147.     if (hasProperty('ndk.path')) {
  148.         def ndkDir = property('ndk.path')
  149.         return new File(ndkDir, getNdkBuildName()).getAbsolutePath()
  150.     }
  151.     if (System.getenv('ANDROID_NDK') != null) {
  152.         def ndkDir = System.getenv('ANDROID_NDK')
  153.         return new File(ndkDir, getNdkBuildName()).getAbsolutePath()
  154.     }
  155.     def ndkDir = android.hasProperty('plugin') ?
  156.  
  157. android.plugin.ndkFolder :
  158.             plugins.getPlugin('com.android.library').sdkHandler.getNdkFolder()
  159.     if (ndkDir) {
  160.         return new File(ndkDir, getNdkBuildName()).getAbsolutePath()
  161.     }
  162.     return null
  163. }
  164.  
  165. def getNdkBuildFullPath() {
  166.     def ndkBuildFullPath = findNdkBuildFullPath()
  167.     if (ndkBuildFullPath == null) {
  168.         throw new GradleScriptException(
  169.             "ndk-build binary cannot be found, check if you've set " +
  170.             "\$ANDROID_NDK environment variable correctly or if ndk.dir is " +
  171.             "setup in local.properties",
  172.             null)
  173.     }
  174.     if (!new File(ndkBuildFullPath).canExecute()) {
  175.         throw new GradleScriptException(
  176.             "ndk-build binary " + ndkBuildFullPath + " doesn't exist or isn't executable.\n" +
  177.             "Check that the \$ANDROID_NDK environment variable, or ndk.dir in local.proerties, is set correctly.\n" +
  178.             "(On Windows, make sure you escape backslashes in local.properties or use forward slashes, e.g. C:\\\\ndk or C:/ndk rather than C:\\ndk)",
  179.             null)
  180.     }
  181.     return ndkBuildFullPath
  182. }
  183.  
  184. task buildReactNdkLib(dependsOn: [prepareJSC, prepareBoost, prepareDoubleConversion, prepareFolly, prepareGlog], type: Exec) {
  185.     inputs.file('src/main/jni/react')
  186.     outputs.dir("$buildDir/react-ndk/all")
  187.     commandLine getNdkBuildFullPath(),
  188.             'NDK_PROJECT_PATH=null',
  189.             "NDK_APPLICATION_MK=$projectDir/src/main/jni/Application.mk",
  190.             'NDK_OUT=' + temporaryDir,
  191.             "NDK_LIBS_OUT=$buildDir/react-ndk/all",
  192.             "THIRD_PARTY_NDK_DIR=$buildDir/third-party-ndk",
  193.             '-C', file('src/main/jni/react/jni').absolutePath,
  194.             '--jobs', project.hasProperty("jobs") ?
  195.  
  196. project.property("jobs") : Runtime.runtime.availableProcessors()
  197. }
  198.  
  199. task cleanReactNdkLib(type: Exec) {
  200.     commandLine getNdkBuildFullPath(),
  201.             '-C', file('src/main/jni/react/jni').absolutePath,
  202.             'clean'
  203. }
  204.  
  205. task packageReactNdkLibs(dependsOn: buildReactNdkLib, type: Copy) {
  206.     from "$buildDir/react-ndk/all"
  207.     exclude '**/libjsc.so'
  208.     into "$buildDir/react-ndk/exported"
  209. }
  210.  
  211. task packageReactNdkLibsForBuck(dependsOn: packageReactNdkLibs, type: Copy) {
  212.   from "$buildDir/react-ndk/exported"
  213.   into "src/main/jni/prebuilt/lib"
  214. }
  215.  
  216. android {
  217.     compileSdkVersion 23
  218.     buildToolsVersion "23.0.1"
  219.  
  220.     defaultConfig {
  221.         minSdkVersion 16
  222.         targetSdkVersion 22
  223.         versionCode 1
  224.         versionName "1.0"
  225.  
  226.         ndk {
  227.             moduleName "reactnativejni"
  228.         }
  229.  
  230.         buildConfigField 'boolean', 'IS_INTERNAL_BUILD', 'false'
  231.         testApplicationId "com.facebook.react.tests.gradle"
  232.         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
  233.     }
  234.  
  235.     sourceSets.main {
  236.         jni.srcDirs = []
  237.         jniLibs.srcDir "$buildDir/react-ndk/exported"
  238.         res.srcDirs = ['src/main/res/devsupport', 'src/main/res/shell', 'src/main/res/views/modal']
  239.         java {
  240.           srcDirs = ['src/main/java', 'src/main/libraries/soloader']
  241.           exclude 'com/facebook/react/processing'
  242.         }
  243.     }
  244.  
  245.     tasks.withType(JavaCompile) {
  246.         compileTask -> compileTask.dependsOn packageReactNdkLibs
  247.     }
  248.  
  249.     clean.dependsOn cleanReactNdkLib
  250.  
  251.     lintOptions {
  252.         abortOnError false
  253.     }
  254. }
  255.  
  256. dependencies {
  257.     compile fileTree(dir: 'src/main/third-party/java/infer-annotations/', include: ['*.jar'])
  258.     compile 'com.android.support:appcompat-v7:23.0.1'
  259.     compile 'com.android.support:recyclerview-v7:23.0.1'
  260.     compile 'com.facebook.fresco:fresco:0.8.1'
  261.     compile 'com.facebook.fresco:imagepipeline-okhttp:0.8.1'
  262.     compile 'com.facebook.stetho:stetho:1.2.0'
  263.     compile 'com.facebook.stetho:stetho-okhttp:1.2.0'
  264.     compile 'com.fasterxml.jackson.core:jackson-core:2.2.3'
  265.     compile 'com.google.code.findbugs:jsr305:3.0.0'
  266.     compile 'com.squareup.okhttp:okhttp:2.5.0'
  267.     compile 'com.squareup.okhttp:okhttp-ws:2.5.0'
  268.     compile 'com.squareup.okio:okio:1.6.0'
  269.     compile 'org.webkit:android-jsc:r174650'
  270.  
  271.     testCompile "junit:junit:${JUNIT_VERSION}"
  272.     testCompile "org.powermock:powermock-api-mockito:${POWERMOCK_VERSION}"
  273.     testCompile 'com.fasterxml.jackson.core:jackson-databind:2.2.3'
  274.     testCompile "org.powermock:powermock-module-junit4-rule:${POWERMOCK_VERSION}"
  275.     testCompile "org.powermock:powermock-classloading-xstream:${POWERMOCK_VERSION}"
  276.     testCompile "org.mockito:mockito-core:${MOCKITO_CORE_VERSION}"
  277.     testCompile "org.easytesting:fest-assert-core:${FEST_ASSERT_CORE_VERSION}"
  278.     testCompile "org.robolectric:robolectric:${ROBOLECTRIC_VERSION}"
  279.  
  280.     androidTestCompile "com.android.support.test:testing-support-lib:0.1"
  281. }
  282.  
  283. apply from: 'release.gradle'

改动完以后：

  1. // Copyright 2015-present Facebook. All Rights Reserved.
  2.  
  3. apply plugin: 'com.android.library'
  4. apply plugin: 'maven'
  5.  
  6. apply plugin: 'de.undercouch.download'
  7.  
  8. import de.undercouch.gradle.tasks.download.Download
  9. import org.apache.tools.ant.taskdefs.condition.Os
  10. import org.apache.tools.ant.filters.ReplaceTokens
  11.  
  12. // We download various C++ open-source dependencies into downloads.
  13. // We then copy both the downloaded code and our custom makefiles and headers into third-party-ndk.
  14. // After that we build native code from src/main/jni with module path pointing at third-party-ndk.
  15.  
  16. def downloadsDir = new File("$buildDir/downloads")
  17. def thirdPartyNdkDir = new File("$buildDir/third-party-ndk")
  18.  
  19. task createNativeDepsDirectories {
  20.     downloadsDir.mkdirs()
  21.     thirdPartyNdkDir.mkdirs()
  22. }
  23. //
  24. //task downloadBoost(dependsOn: createNativeDepsDirectories, type: Download) {
  25. //    // Use ZIP version as it's faster this way to selectively extract some parts of the archive
  26. //    src 'https://downloads.sourceforge.net/project/boost/boost/1.57.0/boost_1_57_0.zip'
  27. //    // alternative
  28. //    // src 'http://mirror.nienbo.com/boost/boost_1_57_0.zip'
  29. //    onlyIfNewer true
  30. //    overwrite false
  31. //    dest new File(downloadsDir, 'boost_1_57_0.zip')
  32. //}
  33.  
  34. task prepareBoost( type: Copy) {
  35.     from 'build/downloads/'
  36.     from 'src/main/jni/third-party/boost/Android.mk'
  37.     include 'boost_1_57_0/boost/**/*.hpp', 'Android.mk'
  38.     into "$thirdPartyNdkDir/boost"
  39. }
  40.  
  41. //task downloadDoubleConversion(dependsOn: createNativeDepsDirectories, type: Download) {
  42. //    src 'https://github.com/google/double-conversion/archive/v1.1.1.tar.gz'
  43. //    onlyIfNewer true
  44. //    overwrite false
  45. //    dest new File(downloadsDir, 'double-conversion-1.1.1.tar.gz')
  46. //}
  47.  
  48. task prepareDoubleConversion(type: Copy) {
  49.     from 'build/downloads/'
  50.     from 'src/main/jni/third-party/double-conversion/Android.mk'
  51.     include 'double-conversion-1.1.1/src/**/*', 'Android.mk'
  52.     filesMatching('*/src/**/*', {fname -> fname.path = "double-conversion/${fname.name}"})
  53.     includeEmptyDirs = false
  54.     into "$thirdPartyNdkDir/double-conversion"
  55. }
  56.  
  57. //task downloadFolly(dependsOn: createNativeDepsDirectories, type: Download) {
  58. //    src 'https://github.com/facebook/folly/archive/deprecate-dynamic-initializer.tar.gz'
  59. //    onlyIfNewer true
  60. //    overwrite false
  61. //    dest new File(downloadsDir, 'folly-deprecate-dynamic-initializer.tar.gz');
  62. //}
  63.  
  64. task prepareFolly(type: Copy) {
  65.     from 'build/downloads/'
  66.     from 'src/main/jni/third-party/folly/Android.mk'
  67.     include 'folly-deprecate-dynamic-initializer/folly/**/*', 'Android.mk'
  68.     eachFile {fname -> fname.path = (fname.path - "folly-deprecate-dynamic-initializer/")}
  69.     includeEmptyDirs = false
  70.     into "$thirdPartyNdkDir/folly"
  71. }
  72.  
  73. //task downloadGlog(dependsOn: createNativeDepsDirectories, type: Download) {
  74. //    src 'https://github.com/google/glog/archive/v0.3.3.tar.gz'
  75. //    onlyIfNewer true
  76. //    overwrite false
  77. //    dest new File(downloadsDir, 'glog-0.3.3.tar.gz')
  78. //}
  79.  
  80. // Prepare glog sources to be compiled, this task will perform steps that normally shoudl've been
  81. // executed by automake. This way we can avoid dependencies on make/automake
  82. task prepareGlog( type: Copy) {
  83.     from 'build/downloads/'
  84.     from 'src/main/jni/third-party/glog/'
  85.     include 'glog-0.3.3/src/**/*', 'Android.mk', 'config.h'
  86.     includeEmptyDirs = false
  87.     filesMatching('**/*.h.in') {
  88.         filter(ReplaceTokens, tokens: [
  89.                 ac_cv_have_unistd_h: '1',
  90.                 ac_cv_have_stdint_h: '1',
  91.                 ac_cv_have_systypes_h: '1',
  92.                 ac_cv_have_inttypes_h: '1',
  93.                 ac_cv_have_libgflags: '0',
  94.                 ac_google_start_namespace: 'namespace google {',
  95.                 ac_cv_have_uint16_t: '1',
  96.                 ac_cv_have_u_int16_t: '1',
  97.                 ac_cv_have___uint16: '0',
  98.                 ac_google_end_namespace: '}',
  99.                 ac_cv_have___builtin_expect: '1',
  100.                 ac_google_namespace: 'google',
  101.                 ac_cv___attribute___noinline: '__attribute__ ((noinline))',
  102.                 ac_cv___attribute___noreturn: '__attribute__ ((noreturn))',
  103.                 ac_cv___attribute___printf_4_5: '__attribute__((__format__ (__printf__, 4, 5)))'
  104.         ])
  105.         it.path = (it.name - '.in')
  106.     }
  107.     into "$thirdPartyNdkDir/glog"
  108. }
  109.  
  110. task downloadJSCHeaders(type: Download) {
  111.     def jscAPIBaseURL = 'https://svn.webkit.org/repository/webkit/!svn/bc/174650/trunk/Source/JavaScriptCore/API/'
  112.     def jscHeaderFiles = ['JSBase.h', 'JSContextRef.h', 'JSObjectRef.h', 'JSRetainPtr.h', 'JSStringRef.h', 'JSValueRef.h', 'WebKitAvailability.h']
  113.     def output = new File(downloadsDir, 'jsc')
  114.     output.mkdirs()
  115.     src(jscHeaderFiles.collect { headerName -> "$jscAPIBaseURL$headerName" })
  116.     onlyIfNewer true
  117.     overwrite false
  118.     dest output
  119. }
  120.  
  121. // Create Android.mk library module based on so files from mvn + include headers fetched from webkit.org
  122. task prepareJSC(dependsOn: downloadJSCHeaders) << {
  123.     copy {
  124.         from zipTree(configurations.compile.fileCollection { dep -> dep.name == 'android-jsc' }.singleFile)
  125.         from {downloadJSCHeaders.dest}
  126.         from 'src/main/jni/third-party/jsc/Android.mk'
  127.         include 'jni/**/*.so', '*.h', 'Android.mk'
  128.         filesMatching('*.h', { fname -> fname.path = "JavaScriptCore/${fname.path}"})
  129.         into "$thirdPartyNdkDir/jsc";
  130.     }
  131. }
  132.  
  133. def getNdkBuildName() {
  134.     if (Os.isFamily(Os.FAMILY_WINDOWS)) {
  135.         return "ndk-build.cmd"
  136.     } else {
  137.         return "ndk-build"
  138.     }
  139. }
  140.  
  141. def findNdkBuildFullPath() {
  142.     // we allow to provide full path to ndk-build tool
  143.     if (hasProperty('ndk.command')) {
  144.         return property('ndk.command')
  145.     }
  146.     // or just a path to the containing directory
  147.     if (hasProperty('ndk.path')) {
  148.         def ndkDir = property('ndk.path')
  149.         return new File(ndkDir, getNdkBuildName()).getAbsolutePath()
  150.     }
  151.     if (System.getenv('ANDROID_NDK') != null) {
  152.         def ndkDir = System.getenv('ANDROID_NDK')
  153.         return new File(ndkDir, getNdkBuildName()).getAbsolutePath()
  154.     }
  155.     def ndkDir = android.hasProperty('plugin') ? android.plugin.ndkFolder :
  156.             plugins.getPlugin('com.android.library').sdkHandler.getNdkFolder()
  157.     if (ndkDir) {
  158.         return new File(ndkDir, getNdkBuildName()).getAbsolutePath()
  159.     }
  160.     return null
  161. }
  162.  
  163. def getNdkBuildFullPath() {
  164.     def ndkBuildFullPath = findNdkBuildFullPath()
  165.     if (ndkBuildFullPath == null) {
  166.         throw new GradleScriptException(
  167.             "ndk-build binary cannot be found, check if you've set " +
  168.             "\$ANDROID_NDK environment variable correctly or if ndk.dir is " +
  169.             "setup in local.properties",
  170.             null)
  171.     }
  172.     if (!new File(ndkBuildFullPath).canExecute()) {
  173.         throw new GradleScriptException(
  174.             "ndk-build binary " + ndkBuildFullPath + " doesn't exist or isn't executable.\n" +
  175.             "Check that the \$ANDROID_NDK environment variable, or ndk.dir in local.proerties, is set correctly.\n" +
  176.             "(On Windows, make sure you escape backslashes in local.properties or use forward slashes, e.g. C:\\\\ndk or C:/ndk rather than C:\\ndk)",
  177.             null)
  178.     }
  179.     return ndkBuildFullPath
  180. }
  181.  
  182. task buildReactNdkLib(dependsOn: [prepareJSC, prepareBoost, prepareDoubleConversion, prepareFolly, prepareGlog], type: Exec) {
  183.     inputs.file('src/main/jni/react')
  184.     outputs.dir("$buildDir/react-ndk/all")
  185.     commandLine getNdkBuildFullPath(),
  186.             'NDK_PROJECT_PATH=null',
  187.             "NDK_APPLICATION_MK=$projectDir/src/main/jni/Application.mk",
  188.             'NDK_OUT=' + temporaryDir,
  189.             "NDK_LIBS_OUT=$buildDir/react-ndk/all",
  190.             "THIRD_PARTY_NDK_DIR=$buildDir/third-party-ndk",
  191.             '-C', file('src/main/jni/react/jni').absolutePath,
  192.             '--jobs', project.hasProperty("jobs") ? project.property("jobs") : Runtime.runtime.availableProcessors()
  193. }
  194.  
  195. task cleanReactNdkLib(type: Exec) {
  196.     commandLine getNdkBuildFullPath(),
  197.             '-C', file('src/main/jni/react/jni').absolutePath,
  198.             'clean'
  199. }
  200.  
  201. task packageReactNdkLibs(dependsOn: buildReactNdkLib, type: Copy) {
  202.     from "$buildDir/react-ndk/all"
  203.     exclude '**/libjsc.so'
  204.     into "$buildDir/react-ndk/exported"
  205. }
  206.  
  207. task packageReactNdkLibsForBuck(dependsOn: packageReactNdkLibs, type: Copy) {
  208.   from "$buildDir/react-ndk/exported"
  209.   into "src/main/jni/prebuilt/lib"
  210. }
  211.  
  212. android {
  213.     compileSdkVersion 23
  214.     buildToolsVersion "23.0.1"
  215.  
  216.     defaultConfig {
  217.         minSdkVersion 16
  218.         targetSdkVersion 22
  219.         versionCode 1
  220.         versionName "1.0"
  221.  
  222.         ndk {
  223.             moduleName "reactnativejni"
  224.         }
  225.  
  226.         buildConfigField 'boolean', 'IS_INTERNAL_BUILD', 'false'
  227.         testApplicationId "com.facebook.react.tests.gradle"
  228.         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
  229.     }
  230.  
  231.     sourceSets.main {
  232.         jni.srcDirs = []
  233.         jniLibs.srcDir "$buildDir/react-ndk/exported"
  234.         res.srcDirs = ['src/main/res/devsupport', 'src/main/res/shell', 'src/main/res/views/modal']
  235.         java {
  236.           srcDirs = ['src/main/java', 'src/main/libraries/soloader']
  237.           exclude 'com/facebook/react/processing'
  238.         }
  239.     }
  240.  
  241.     tasks.withType(JavaCompile) {
  242.         compileTask -> compileTask.dependsOn packageReactNdkLibs
  243.     }
  244.  
  245.     clean.dependsOn cleanReactNdkLib
  246.  
  247.     lintOptions {
  248.         abortOnError false
  249.     }
  250. }
  251.  
  252. dependencies {
  253.     compile fileTree(dir: 'src/main/third-party/java/infer-annotations/', include: ['*.jar'])
  254.     compile 'com.android.support:appcompat-v7:23.0.1'
  255.     compile 'com.android.support:recyclerview-v7:23.0.1'
  256.     compile 'com.facebook.fresco:fresco:0.8.1'
  257.     compile 'com.facebook.fresco:imagepipeline-okhttp:0.8.1'
  258.     compile 'com.facebook.stetho:stetho:1.2.0'
  259.     compile 'com.facebook.stetho:stetho-okhttp:1.2.0'
  260.     compile 'com.fasterxml.jackson.core:jackson-core:2.2.3'
  261.     compile 'com.google.code.findbugs:jsr305:3.0.0'
  262.     compile 'com.squareup.okhttp:okhttp:2.5.0'
  263.     compile 'com.squareup.okhttp:okhttp-ws:2.5.0'
  264.     compile 'com.squareup.okio:okio:1.6.0'
  265.     compile 'org.webkit:android-jsc:r174650'
  266.  
  267.     testCompile "junit:junit:${JUNIT_VERSION}"
  268.     testCompile "org.powermock:powermock-api-mockito:${POWERMOCK_VERSION}"
  269.     testCompile 'com.fasterxml.jackson.core:jackson-databind:2.2.3'
  270.     testCompile "org.powermock:powermock-module-junit4-rule:${POWERMOCK_VERSION}"
  271.     testCompile "org.powermock:powermock-classloading-xstream:${POWERMOCK_VERSION}"
  272.     testCompile "org.mockito:mockito-core:${MOCKITO_CORE_VERSION}"
  273.     testCompile "org.easytesting:fest-assert-core:${FEST_ASSERT_CORE_VERSION}"
  274.     testCompile "org.robolectric:robolectric:${ROBOLECTRIC_VERSION}"
  275.  
  276.     androidTestCompile "com.android.support.test:testing-support-lib:0.1"
  277. }
  278.  
  279. apply from: 'release.gradle'

去掉了那些下载，由于我们已经下载好，扔进去。至于那些怎么下载，大家就自己自行想办法吧，反正一个个下载。

然后能够编译了。

注意ndk版本号。在local.properties文件中面设定：

  1. ndk.dir=/Users/zengjinlong/workplace/android-ndk-r10b
  2. sdk.dir=/Users/zengjinlong/workplace/android-sdk-macosx

OK，跑起来。

然后，在项目的顶层。npm start 。

注意。我们并没有将ReactAndroid 装载到node_module里面。由于这样easy出问题，所以这也是跟官网差异的一个地方。就是，project依赖是通过源代码。可是npm start的，事实上是node_module里面的，也就是0.22.2

好，今天就到这里。有什么不懂的，能够来问我。

470910357@qq.com;

微信：micall123

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