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 Android教程網 >> Android技術 >> 關於Android編程 >> React Native Android入門實戰及深入源碼分析系列(2)——React Native源碼編譯

React Native Android入門實戰及深入源碼分析系列(2)——React Native源碼編譯

編輯:關於Android編程

在上一節中,我們通過一個相冊的制作來學習了React Native編寫。這一節我們需要開始學習React Native的源碼。

學習源碼,從編譯源碼開始。

首先,我們需要把代碼從github中克隆下來。

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

然後,我們可以切換到它的穩定分支,2016-03-30是我的操作時間,這個時候0.23-stable是最新的穩定版本。
git checkout -b 0.23-stable remotes/origin/0.23-stable

我們首先升級一下我們的react-native,因為等下創建項目最好使用最新版本的。

首先,我們需要查詢最新版本:

nam info react-native

得到最新版本是0.22.2
npm install --save [email protected]

接下來,創建一個項目:
react-native init videolegend

好,等待漫長的初始化過程。

完事之後,打開項目頂層的package.json文件:

{
  "name": "videolegend",
  "version": "0.0.1",
  "private": true,
  "scripts": {
    "start": "node node_modules/react-native/local-cli/cli.js start"
  },
  "dependencies": {
    "react": "^0.14.8",
    "react-native": "^0.22.2"
  }
}

可以看出我們的一個版本的基本信息。

接下來,我們來進行源碼的編譯。編譯源碼,官網有一個頁面,我們的過程呢,也是基於它的,但如果你完全基於它,那麼你是會吃虧的。

所以,為什麼我要寫一篇文章出來,給大家作為參考。

官網源碼編譯地址:點擊打開鏈接

前置條件:

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,會坑出很多問題,如果NDK版本不對。)

使用AndroidStudio打開項目。

1、項目頂層build.grade的配置:

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:1.3.1'
//加下面這一行
        classpath 'de.undercouch:gradle-download-task:2.0.0'
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        mavenLocal()
        jcenter()
        maven {
            // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
            url "$projectDir/../../node_modules/react-native/android"
        }
    }
}

2、添加ReactAndroid模塊,在頂層的setting.grade文件中,配置如下:
rootProject.name = 'videolegend'

include ':app'
include ':ReactAndroid'
project(':ReactAndroid').projectDir = new File('/Users/zengjinlong/workplace/react/reactnativesrc/react-native/ReactAndroid')

那個絕對目錄是我的,你只需要改成你的就行。

3、更改項目依賴:在應用模塊的build.gradle裡面更改依賴部分:

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

注釋掉原來的,更改為模塊依賴。

官網到這裡,就叫你可以run啦。呵呵,too young too simple。

首先,ReactAndroid裡面的有些下載任務你給它再多時間都不可能完成。所以。。。我們需要離線下載好。然後更改其腳本,進行編譯。

1、離線下載好

boost_1_57_0

double_conversion-1.1.1

folly-deprecate-dynamic-initializer

glog-0.3.3

jsc頭文件

然後按照目錄放到ReactAndroid的build/downloads/目錄下面。大概有450M內容。

2、修改ReactAndroid的build.grade腳本

主要是刪掉那些下載任務的腳本,直接進入拷貝任務和編譯任務。

來,我們來感受一下修改前和修改後的區別。

首先,修改前:

// Copyright 2015-present Facebook. All Rights Reserved.

apply plugin: 'com.android.library'
apply plugin: 'maven'

apply plugin: 'de.undercouch.download'

import de.undercouch.gradle.tasks.download.Download
import org.apache.tools.ant.taskdefs.condition.Os
import org.apache.tools.ant.filters.ReplaceTokens

// We download various C++ open-source dependencies into downloads.
// We then copy both the downloaded code and our custom makefiles and headers into third-party-ndk.
// After that we build native code from src/main/jni with module path pointing at third-party-ndk.

def downloadsDir = new File("$buildDir/downloads")
def thirdPartyNdkDir = new File("$buildDir/third-party-ndk")

task createNativeDepsDirectories {
    downloadsDir.mkdirs()
    thirdPartyNdkDir.mkdirs()
}
 //下載boost 超級慢,所以自己下好吧
task downloadBoost(dependsOn: createNativeDepsDirectories, type: Download) {
    // Use ZIP version as it's faster this way to selectively extract some parts of the archive
    src 'https://downloads.sourceforge.net/project/boost/boost/1.57.0/boost_1_57_0.zip'
    // alternative
    // src 'http://mirror.nienbo.com/boost/boost_1_57_0.zip'
    onlyIfNewer true
    overwrite false
    dest new File(downloadsDir, 'boost_1_57_0.zip')
}
  //下載好boost後,拷貝到指定目錄
task prepareBoost(dependsOn: downloadBoost, type: Copy) {
    from zipTree(downloadBoost.dest)
    from 'src/main/jni/third-party/boost/Android.mk'
    include 'boost_1_57_0/boost/**/*.hpp', 'Android.mk'
    into "$thirdPartyNdkDir/boost"
}
//下載
task downloadDoubleConversion(dependsOn: createNativeDepsDirectories, type: Download) {
    src 'https://github.com/google/double-conversion/archive/v1.1.1.tar.gz'
    onlyIfNewer true
    overwrite false
    dest new File(downloadsDir, 'double-conversion-1.1.1.tar.gz')
}
//
task prepareDoubleConversion(dependsOn: downloadDoubleConversion, type: Copy) {
    from tarTree(downloadDoubleConversion.dest)
    from 'src/main/jni/third-party/double-conversion/Android.mk'
    include 'double-conversion-1.1.1/src/**/*', 'Android.mk'
    filesMatching('*/src/**/*', {fname -> fname.path = "double-conversion/${fname.name}"})
    includeEmptyDirs = false
    into "$thirdPartyNdkDir/double-conversion"
}

task downloadFolly(dependsOn: createNativeDepsDirectories, type: Download) {
    src 'https://github.com/facebook/folly/archive/deprecate-dynamic-initializer.tar.gz'
    onlyIfNewer true
    overwrite false
    dest new File(downloadsDir, 'folly-deprecate-dynamic-initializer.tar.gz');
}

task prepareFolly(dependsOn: downloadFolly, type: Copy) {
    from tarTree(downloadFolly.dest)
    from 'src/main/jni/third-party/folly/Android.mk'
    include 'folly-deprecate-dynamic-initializer/folly/**/*', 'Android.mk'
    eachFile {fname -> fname.path = (fname.path - "folly-deprecate-dynamic-initializer/")}
    includeEmptyDirs = false
    into "$thirdPartyNdkDir/folly"
}

task downloadGlog(dependsOn: createNativeDepsDirectories, type: Download) {
    src 'https://github.com/google/glog/archive/v0.3.3.tar.gz'
    onlyIfNewer true
    overwrite false
    dest new File(downloadsDir, 'glog-0.3.3.tar.gz')
}

// Prepare glog sources to be compiled, this task will perform steps that normally shoudl've been
// executed by automake. This way we can avoid dependencies on make/automake
task prepareGlog(dependsOn: downloadGlog, type: Copy) {
    from tarTree(downloadGlog.dest)
    from 'src/main/jni/third-party/glog/'
    include 'glog-0.3.3/src/**/*', 'Android.mk', 'config.h'
    includeEmptyDirs = false
    filesMatching('**/*.h.in') {
        filter(ReplaceTokens, tokens: [
                ac_cv_have_unistd_h: '1',
                ac_cv_have_stdint_h: '1',
                ac_cv_have_systypes_h: '1',
                ac_cv_have_inttypes_h: '1',
                ac_cv_have_libgflags: '0',
                ac_google_start_namespace: 'namespace google {',
                ac_cv_have_uint16_t: '1',
                ac_cv_have_u_int16_t: '1',
                ac_cv_have___uint16: '0',
                ac_google_end_namespace: '}',
                ac_cv_have___builtin_expect: '1',
                ac_google_namespace: 'google',
                ac_cv___attribute___noinline: '__attribute__ ((noinline))',
                ac_cv___attribute___noreturn: '__attribute__ ((noreturn))',
                ac_cv___attribute___printf_4_5: '__attribute__((__format__ (__printf__, 4, 5)))'
        ])
        it.path = (it.name - '.in')
    }
    into "$thirdPartyNdkDir/glog"
}

task downloadJSCHeaders(type: Download) {
    def jscAPIBaseURL = 'https://svn.webkit.org/repository/webkit/!svn/bc/174650/trunk/Source/JavaScriptCore/API/'
    def jscHeaderFiles = ['JSBase.h', 'JSContextRef.h', 'JSObjectRef.h', 'JSRetainPtr.h', 'JSStringRef.h', 'JSValueRef.h', 'WebKitAvailability.h']
    def output = new File(downloadsDir, 'jsc')
    output.mkdirs()
    src(jscHeaderFiles.collect { headerName -> "$jscAPIBaseURL$headerName" })
    onlyIfNewer true
    overwrite false
    dest output
}

// Create Android.mk library module based on so files from mvn + include headers fetched from webkit.org
task prepareJSC(dependsOn: downloadJSCHeaders) << {
    copy {
        from zipTree(configurations.compile.fileCollection { dep -> dep.name == 'android-jsc' }.singleFile)
        from {downloadJSCHeaders.dest}
        from 'src/main/jni/third-party/jsc/Android.mk'
        include 'jni/**/*.so', '*.h', 'Android.mk'
        filesMatching('*.h', { fname -> fname.path = "JavaScriptCore/${fname.path}"})
        into "$thirdPartyNdkDir/jsc";
    }
}

def getNdkBuildName() {
    if (Os.isFamily(Os.FAMILY_WINDOWS)) {
        return "ndk-build.cmd"
    } else {
        return "ndk-build"
    }
}

def findNdkBuildFullPath() {
    // we allow to provide full path to ndk-build tool
    if (hasProperty('ndk.command')) {
        return property('ndk.command')
    }
    // or just a path to the containing directory
    if (hasProperty('ndk.path')) {
        def ndkDir = property('ndk.path')
        return new File(ndkDir, getNdkBuildName()).getAbsolutePath()
    }
    if (System.getenv('ANDROID_NDK') != null) {
        def ndkDir = System.getenv('ANDROID_NDK')
        return new File(ndkDir, getNdkBuildName()).getAbsolutePath()
    }
    def ndkDir = android.hasProperty('plugin') ? android.plugin.ndkFolder :
            plugins.getPlugin('com.android.library').sdkHandler.getNdkFolder()
    if (ndkDir) {
        return new File(ndkDir, getNdkBuildName()).getAbsolutePath()
    }
    return null
}

def getNdkBuildFullPath() {
    def ndkBuildFullPath = findNdkBuildFullPath()
    if (ndkBuildFullPath == null) {
        throw new GradleScriptException(
            "ndk-build binary cannot be found, check if you've set " +
            "\$ANDROID_NDK environment variable correctly or if ndk.dir is " +
            "setup in local.properties",
            null)
    }
    if (!new File(ndkBuildFullPath).canExecute()) {
        throw new GradleScriptException(
            "ndk-build binary " + ndkBuildFullPath + " doesn't exist or isn't executable.\n" +
            "Check that the \$ANDROID_NDK environment variable, or ndk.dir in local.proerties, is set correctly.\n" +
            "(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)",
            null)
    }
    return ndkBuildFullPath
}

task buildReactNdkLib(dependsOn: [prepareJSC, prepareBoost, prepareDoubleConversion, prepareFolly, prepareGlog], type: Exec) {
    inputs.file('src/main/jni/react')
    outputs.dir("$buildDir/react-ndk/all")
    commandLine getNdkBuildFullPath(),
            'NDK_PROJECT_PATH=null',
            "NDK_APPLICATION_MK=$projectDir/src/main/jni/Application.mk",
            'NDK_OUT=' + temporaryDir,
            "NDK_LIBS_OUT=$buildDir/react-ndk/all",
            "THIRD_PARTY_NDK_DIR=$buildDir/third-party-ndk",
            '-C', file('src/main/jni/react/jni').absolutePath,
            '--jobs', project.hasProperty("jobs") ? project.property("jobs") : Runtime.runtime.availableProcessors()
}

task cleanReactNdkLib(type: Exec) {
    commandLine getNdkBuildFullPath(),
            '-C', file('src/main/jni/react/jni').absolutePath,
            'clean'
}

task packageReactNdkLibs(dependsOn: buildReactNdkLib, type: Copy) {
    from "$buildDir/react-ndk/all"
    exclude '**/libjsc.so'
    into "$buildDir/react-ndk/exported"
}

task packageReactNdkLibsForBuck(dependsOn: packageReactNdkLibs, type: Copy) {
  from "$buildDir/react-ndk/exported"
  into "src/main/jni/prebuilt/lib"
}

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.1"

    defaultConfig {
        minSdkVersion 16
        targetSdkVersion 22
        versionCode 1
        versionName "1.0"

        ndk {
            moduleName "reactnativejni"
        }

        buildConfigField 'boolean', 'IS_INTERNAL_BUILD', 'false'
        testApplicationId "com.facebook.react.tests.gradle"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }

    sourceSets.main {
        jni.srcDirs = []
        jniLibs.srcDir "$buildDir/react-ndk/exported"
        res.srcDirs = ['src/main/res/devsupport', 'src/main/res/shell', 'src/main/res/views/modal']
        java {
          srcDirs = ['src/main/java', 'src/main/libraries/soloader']
          exclude 'com/facebook/react/processing'
        }
    }

    tasks.withType(JavaCompile) {
        compileTask -> compileTask.dependsOn packageReactNdkLibs
    }

    clean.dependsOn cleanReactNdkLib

    lintOptions {
        abortOnError false
    }
}

dependencies {
    compile fileTree(dir: 'src/main/third-party/java/infer-annotations/', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:23.0.1'
    compile 'com.android.support:recyclerview-v7:23.0.1'
    compile 'com.facebook.fresco:fresco:0.8.1'
    compile 'com.facebook.fresco:imagepipeline-okhttp:0.8.1'
    compile 'com.facebook.stetho:stetho:1.2.0'
    compile 'com.facebook.stetho:stetho-okhttp:1.2.0'
    compile 'com.fasterxml.jackson.core:jackson-core:2.2.3'
    compile 'com.google.code.findbugs:jsr305:3.0.0'
    compile 'com.squareup.okhttp:okhttp:2.5.0'
    compile 'com.squareup.okhttp:okhttp-ws:2.5.0'
    compile 'com.squareup.okio:okio:1.6.0'
    compile 'org.webkit:android-jsc:r174650'

    testCompile "junit:junit:${JUNIT_VERSION}"
    testCompile "org.powermock:powermock-api-mockito:${POWERMOCK_VERSION}"
    testCompile 'com.fasterxml.jackson.core:jackson-databind:2.2.3'
    testCompile "org.powermock:powermock-module-junit4-rule:${POWERMOCK_VERSION}"
    testCompile "org.powermock:powermock-classloading-xstream:${POWERMOCK_VERSION}"
    testCompile "org.mockito:mockito-core:${MOCKITO_CORE_VERSION}"
    testCompile "org.easytesting:fest-assert-core:${FEST_ASSERT_CORE_VERSION}"
    testCompile "org.robolectric:robolectric:${ROBOLECTRIC_VERSION}"

    androidTestCompile "com.android.support.test:testing-support-lib:0.1"
}

apply from: 'release.gradle'

修改完以後:

 

 

// Copyright 2015-present Facebook. All Rights Reserved.

apply plugin: 'com.android.library'
apply plugin: 'maven'

apply plugin: 'de.undercouch.download'

import de.undercouch.gradle.tasks.download.Download
import org.apache.tools.ant.taskdefs.condition.Os
import org.apache.tools.ant.filters.ReplaceTokens

// We download various C++ open-source dependencies into downloads.
// We then copy both the downloaded code and our custom makefiles and headers into third-party-ndk.
// After that we build native code from src/main/jni with module path pointing at third-party-ndk.

def downloadsDir = new File("$buildDir/downloads")
def thirdPartyNdkDir = new File("$buildDir/third-party-ndk")

task createNativeDepsDirectories {
    downloadsDir.mkdirs()
    thirdPartyNdkDir.mkdirs()
}
//
//task downloadBoost(dependsOn: createNativeDepsDirectories, type: Download) {
//    // Use ZIP version as it's faster this way to selectively extract some parts of the archive
//    src 'https://downloads.sourceforge.net/project/boost/boost/1.57.0/boost_1_57_0.zip'
//    // alternative
//    // src 'http://mirror.nienbo.com/boost/boost_1_57_0.zip'
//    onlyIfNewer true
//    overwrite false
//    dest new File(downloadsDir, 'boost_1_57_0.zip')
//}

task prepareBoost( type: Copy) {
    from 'build/downloads/'
    from 'src/main/jni/third-party/boost/Android.mk'
    include 'boost_1_57_0/boost/**/*.hpp', 'Android.mk'
    into "$thirdPartyNdkDir/boost"
}

//task downloadDoubleConversion(dependsOn: createNativeDepsDirectories, type: Download) {
//    src 'https://github.com/google/double-conversion/archive/v1.1.1.tar.gz'
//    onlyIfNewer true
//    overwrite false
//    dest new File(downloadsDir, 'double-conversion-1.1.1.tar.gz')
//}

task prepareDoubleConversion(type: Copy) {
    from 'build/downloads/'
    from 'src/main/jni/third-party/double-conversion/Android.mk'
    include 'double-conversion-1.1.1/src/**/*', 'Android.mk'
    filesMatching('*/src/**/*', {fname -> fname.path = "double-conversion/${fname.name}"})
    includeEmptyDirs = false
    into "$thirdPartyNdkDir/double-conversion"
}

//task downloadFolly(dependsOn: createNativeDepsDirectories, type: Download) {
//    src 'https://github.com/facebook/folly/archive/deprecate-dynamic-initializer.tar.gz'
//    onlyIfNewer true
//    overwrite false
//    dest new File(downloadsDir, 'folly-deprecate-dynamic-initializer.tar.gz');
//}

task prepareFolly(type: Copy) {
    from 'build/downloads/'
    from 'src/main/jni/third-party/folly/Android.mk'
    include 'folly-deprecate-dynamic-initializer/folly/**/*', 'Android.mk'
    eachFile {fname -> fname.path = (fname.path - "folly-deprecate-dynamic-initializer/")}
    includeEmptyDirs = false
    into "$thirdPartyNdkDir/folly"
}

//task downloadGlog(dependsOn: createNativeDepsDirectories, type: Download) {
//    src 'https://github.com/google/glog/archive/v0.3.3.tar.gz'
//    onlyIfNewer true
//    overwrite false
//    dest new File(downloadsDir, 'glog-0.3.3.tar.gz')
//}

// Prepare glog sources to be compiled, this task will perform steps that normally shoudl've been
// executed by automake. This way we can avoid dependencies on make/automake
task prepareGlog( type: Copy) {
    from 'build/downloads/'
    from 'src/main/jni/third-party/glog/'
    include 'glog-0.3.3/src/**/*', 'Android.mk', 'config.h'
    includeEmptyDirs = false
    filesMatching('**/*.h.in') {
        filter(ReplaceTokens, tokens: [
                ac_cv_have_unistd_h: '1',
                ac_cv_have_stdint_h: '1',
                ac_cv_have_systypes_h: '1',
                ac_cv_have_inttypes_h: '1',
                ac_cv_have_libgflags: '0',
                ac_google_start_namespace: 'namespace google {',
                ac_cv_have_uint16_t: '1',
                ac_cv_have_u_int16_t: '1',
                ac_cv_have___uint16: '0',
                ac_google_end_namespace: '}',
                ac_cv_have___builtin_expect: '1',
                ac_google_namespace: 'google',
                ac_cv___attribute___noinline: '__attribute__ ((noinline))',
                ac_cv___attribute___noreturn: '__attribute__ ((noreturn))',
                ac_cv___attribute___printf_4_5: '__attribute__((__format__ (__printf__, 4, 5)))'
        ])
        it.path = (it.name - '.in')
    }
    into "$thirdPartyNdkDir/glog"
}

task downloadJSCHeaders(type: Download) {
    def jscAPIBaseURL = 'https://svn.webkit.org/repository/webkit/!svn/bc/174650/trunk/Source/JavaScriptCore/API/'
    def jscHeaderFiles = ['JSBase.h', 'JSContextRef.h', 'JSObjectRef.h', 'JSRetainPtr.h', 'JSStringRef.h', 'JSValueRef.h', 'WebKitAvailability.h']
    def output = new File(downloadsDir, 'jsc')
    output.mkdirs()
    src(jscHeaderFiles.collect { headerName -> "$jscAPIBaseURL$headerName" })
    onlyIfNewer true
    overwrite false
    dest output
}

// Create Android.mk library module based on so files from mvn + include headers fetched from webkit.org
task prepareJSC(dependsOn: downloadJSCHeaders) << {
    copy {
        from zipTree(configurations.compile.fileCollection { dep -> dep.name == 'android-jsc' }.singleFile)
        from {downloadJSCHeaders.dest}
        from 'src/main/jni/third-party/jsc/Android.mk'
        include 'jni/**/*.so', '*.h', 'Android.mk'
        filesMatching('*.h', { fname -> fname.path = "JavaScriptCore/${fname.path}"})
        into "$thirdPartyNdkDir/jsc";
    }
}

def getNdkBuildName() {
    if (Os.isFamily(Os.FAMILY_WINDOWS)) {
        return "ndk-build.cmd"
    } else {
        return "ndk-build"
    }
}

def findNdkBuildFullPath() {
    // we allow to provide full path to ndk-build tool
    if (hasProperty('ndk.command')) {
        return property('ndk.command')
    }
    // or just a path to the containing directory
    if (hasProperty('ndk.path')) {
        def ndkDir = property('ndk.path')
        return new File(ndkDir, getNdkBuildName()).getAbsolutePath()
    }
    if (System.getenv('ANDROID_NDK') != null) {
        def ndkDir = System.getenv('ANDROID_NDK')
        return new File(ndkDir, getNdkBuildName()).getAbsolutePath()
    }
    def ndkDir = android.hasProperty('plugin') ? android.plugin.ndkFolder :
            plugins.getPlugin('com.android.library').sdkHandler.getNdkFolder()
    if (ndkDir) {
        return new File(ndkDir, getNdkBuildName()).getAbsolutePath()
    }
    return null
}

def getNdkBuildFullPath() {
    def ndkBuildFullPath = findNdkBuildFullPath()
    if (ndkBuildFullPath == null) {
        throw new GradleScriptException(
            "ndk-build binary cannot be found, check if you've set " +
            "\$ANDROID_NDK environment variable correctly or if ndk.dir is " +
            "setup in local.properties",
            null)
    }
    if (!new File(ndkBuildFullPath).canExecute()) {
        throw new GradleScriptException(
            "ndk-build binary " + ndkBuildFullPath + " doesn't exist or isn't executable.\n" +
            "Check that the \$ANDROID_NDK environment variable, or ndk.dir in local.proerties, is set correctly.\n" +
            "(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)",
            null)
    }
    return ndkBuildFullPath
}

task buildReactNdkLib(dependsOn: [prepareJSC, prepareBoost, prepareDoubleConversion, prepareFolly, prepareGlog], type: Exec) {
    inputs.file('src/main/jni/react')
    outputs.dir("$buildDir/react-ndk/all")
    commandLine getNdkBuildFullPath(),
            'NDK_PROJECT_PATH=null',
            "NDK_APPLICATION_MK=$projectDir/src/main/jni/Application.mk",
            'NDK_OUT=' + temporaryDir,
            "NDK_LIBS_OUT=$buildDir/react-ndk/all",
            "THIRD_PARTY_NDK_DIR=$buildDir/third-party-ndk",
            '-C', file('src/main/jni/react/jni').absolutePath,
            '--jobs', project.hasProperty("jobs") ? project.property("jobs") : Runtime.runtime.availableProcessors()
}

task cleanReactNdkLib(type: Exec) {
    commandLine getNdkBuildFullPath(),
            '-C', file('src/main/jni/react/jni').absolutePath,
            'clean'
}

task packageReactNdkLibs(dependsOn: buildReactNdkLib, type: Copy) {
    from "$buildDir/react-ndk/all"
    exclude '**/libjsc.so'
    into "$buildDir/react-ndk/exported"
}

task packageReactNdkLibsForBuck(dependsOn: packageReactNdkLibs, type: Copy) {
  from "$buildDir/react-ndk/exported"
  into "src/main/jni/prebuilt/lib"
}

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.1"

    defaultConfig {
        minSdkVersion 16
        targetSdkVersion 22
        versionCode 1
        versionName "1.0"

        ndk {
            moduleName "reactnativejni"
        }

        buildConfigField 'boolean', 'IS_INTERNAL_BUILD', 'false'
        testApplicationId "com.facebook.react.tests.gradle"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }

    sourceSets.main {
        jni.srcDirs = []
        jniLibs.srcDir "$buildDir/react-ndk/exported"
        res.srcDirs = ['src/main/res/devsupport', 'src/main/res/shell', 'src/main/res/views/modal']
        java {
          srcDirs = ['src/main/java', 'src/main/libraries/soloader']
          exclude 'com/facebook/react/processing'
        }
    }

    tasks.withType(JavaCompile) {
        compileTask -> compileTask.dependsOn packageReactNdkLibs
    }

    clean.dependsOn cleanReactNdkLib

    lintOptions {
        abortOnError false
    }
}

dependencies {
    compile fileTree(dir: 'src/main/third-party/java/infer-annotations/', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:23.0.1'
    compile 'com.android.support:recyclerview-v7:23.0.1'
    compile 'com.facebook.fresco:fresco:0.8.1'
    compile 'com.facebook.fresco:imagepipeline-okhttp:0.8.1'
    compile 'com.facebook.stetho:stetho:1.2.0'
    compile 'com.facebook.stetho:stetho-okhttp:1.2.0'
    compile 'com.fasterxml.jackson.core:jackson-core:2.2.3'
    compile 'com.google.code.findbugs:jsr305:3.0.0'
    compile 'com.squareup.okhttp:okhttp:2.5.0'
    compile 'com.squareup.okhttp:okhttp-ws:2.5.0'
    compile 'com.squareup.okio:okio:1.6.0'
    compile 'org.webkit:android-jsc:r174650'

    testCompile "junit:junit:${JUNIT_VERSION}"
    testCompile "org.powermock:powermock-api-mockito:${POWERMOCK_VERSION}"
    testCompile 'com.fasterxml.jackson.core:jackson-databind:2.2.3'
    testCompile "org.powermock:powermock-module-junit4-rule:${POWERMOCK_VERSION}"
    testCompile "org.powermock:powermock-classloading-xstream:${POWERMOCK_VERSION}"
    testCompile "org.mockito:mockito-core:${MOCKITO_CORE_VERSION}"
    testCompile "org.easytesting:fest-assert-core:${FEST_ASSERT_CORE_VERSION}"
    testCompile "org.robolectric:robolectric:${ROBOLECTRIC_VERSION}"

    androidTestCompile "com.android.support.test:testing-support-lib:0.1"
}

apply from: 'release.gradle'

去掉了那些下載,因為我們已經下載好,扔進去。至於那些怎麼下載,大家就自己自行想辦法吧,反正一個個下載。

然後可以編譯了。注意ndk版本,在local.properties文件裡面設定:

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

OK,跑起來。

然後,在項目的頂層,npm start 。

注意,我們並沒有將ReactAndroid 裝載到node_module裡面。因為這樣容易出問題,所以這也是跟官網差異的一個地方。就是,工程依賴是通過源碼。但是npm start的,其實是node_module裡面的,也就是0.22.2

好,今天就到這裡。有什麼不懂的,可以來問我。

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