Question

在Google IO中，宣布新的构建系统gradle将取代ant。我的项目是使用aspectj，我想在我的项目中使用它。我无法找出一些变量来使它工作。我没有找到android。*输出类路径。有人可以帮忙吗？

这是我当前的build.gradle：

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.4'
    }
}
apply plugin: 'android'
sourceCompatibility = 1.6

configurations {
    ajc
} 

dependencies {
    compile fileTree(dir: 'libs', includes: ['*.jar'])
    ajc files('build-tools/aspectjtools.jar', 'libs/aspectjrt.jar')
}

android {
    compileSdkVersion 16
    buildToolsVersion "17"

    defaultConfig {
        minSdkVersion 8
        targetSdkVersion 16
    }
    sourceSets {
        main {
            manifest.srcFile 'AndroidManifest.xml'
            java.srcDirs = ['src']
            resources.srcDirs = ['src']
            aidl.srcDirs = ['src']
            renderscript.srcDirs = ['src']
            res.srcDirs = ['res']
            assets.srcDirs = ['assets']
        }

        instrumentTest.setRoot('test')
    }
}

gradle.projectsEvaluated {
    compileJava.doLast {
        tasks.compileAspectJ.execute()
    }
    println 'lalalalala'
}

task compileAspectJ {

    ant.taskdef(resource: "org/aspectj/tools/ant/taskdefs/aspectjTaskdefs.properties",
        classpath: configurations.ajc.asPath)
    ant.iajc(source: sourceCompatibility, target: sourceCompatibility,
        destDir: "?????????????????????",
        classpath: "????????????????????????????") {

        sourceroots{
            android.sourceSets.main.java.srcDirs.each {
                pathelement(location: it.absolutePath)
            }  
        }  
    }  
}

这是一个非常有效的旧ant代码： http://code.google.com/p/anymemo/source/browse/custom_rules.xml

编辑：

根据第一个答案更新了build.gradle。但是我的iajc似乎没有识别出所有的库并且抱怨找不到库中的类

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.5.+'
    }
}

apply plugin: 'android'
sourceCompatibility = 1.6
targetCompatibility = 1.6

repositories {
    mavenCentral()
}

android {
    compileSdkVersion 18
    buildToolsVersion "18.1.0"

    defaultConfig {
        minSdkVersion 9
        targetSdkVersion 16
    }
    sourceSets {
        main {
            manifest.srcFile 'AndroidManifest.xml'
            java.srcDirs = ['src']
            resources.srcDirs = ['src']
            aidl.srcDirs = ['src']
            renderscript.srcDirs = ['src']
            res.srcDirs = ['res']
            assets.srcDirs = ['assets']
        }

        // Move the tests to tests/java, tests/res, etc...
        instrumentTest.setRoot('tests')

        // Move the build types to build-types/<type>
        // For instance, build-types/debug/java, build-types/debug/AndroidManifest.xml, ...
        // This moves them out of them default location under src/<type>/... which would
        // conflict with src/ being used by the main source set.
        // Adding new build types or product flavors should be accompanied
        // by a similar customization.
        debug.setRoot('build-types/debug')
        release.setRoot('build-types/release')
    }
}

configurations {
    ajc
    aspects
    ajInpath
}

ext.aspectjVersion = '1.7.3'

dependencies {
    compile fileTree(dir: 'libs', include: '*.jar')

    ajc "org.aspectj:aspectjtools:${aspectjVersion}"
    compile "org.aspectj:aspectjrt:${aspectjVersion}"
    compile 'com.android.support:appcompat-v7:18.0.0'
}

android.applicationVariants.all { variant ->

    variant.javaCompile.doLast {
        def androidSdk = android.adbExe.parent + "/../platforms/" + android.compileSdkVersion + "/android.jar"
    println 'AAAAAAAAAAAAAAAAA: ' + androidSdk

        def iajcClasspath = configurations.compile.asPath + ":" + androidSdk
        configurations.compile.dependencies.each { dep ->
            if(dep.hasProperty("dependencyProject")) {
                iajcClasspath += ":" + dep.dependencyProject.buildDir + "/bundles/release/classes.jar"
            }
        }
    println 'BBBBBBBBBBBBBB : ' + iajcClasspath 

        ant.taskdef( resource:"org/aspectj/tools/ant/taskdefs/aspectjTaskdefs.properties", classpath: configurations.ajc.asPath)
        ant.iajc (
                source:sourceCompatibility,
                target:targetCompatibility,
                destDir:"${project.buildDir}/classes/${variant.dirName}",
                maxmem:"512m",
                fork:"true",
                aspectPath:configurations.aspects.asPath,
                inpath:configurations.ajInpath.asPath,
                sourceRootCopyFilter:"**/.svn/*,**/*.java",
                classpath:iajcClasspath
        ){
            sourceroots{
                android.sourceSets.main.java.srcDirs.each{
                    pathelement(location:it.absolutePath)
                }
                pathelement(location:"${project.buildDir}/source/r/${variant.dirName}")
            }
        }
    }
}

错误：

1 [error] The method onPrepareOptionsMenu(Menu) of type FingerPaint must override or impl[3780/18642]
rtype method
[ant:iajc] public boolean onPrepareOptionsMenu(Menu menu) {
[ant:iajc]                ^^^^^^^^^^^^^^^^^^^^^^^^^^
[ant:iajc] /home/liberty/mp/android/AnyMemo/src/com/example/android/apis/graphics/FingerPaint.java:21
2 [error] The method onPrepareOptionsMenu(Menu) is undefined for the type GraphicsActivity
[ant:iajc] super.onPrepareOptionsMenu(menu);
[ant:iajc]       ^^^^^^^^^^^
[ant:iajc] /home/liberty/mp/android/AnyMemo/src/com/example/android/apis/graphics/FingerPaint.java:21
7 [error] The method onOptionsItemSelected(MenuItem) of type FingerPaint must override or implement a
 supertype method
[ant:iajc] public boolean onOptionsItemSelected(MenuItem item) {
[ant:iajc]                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[ant:iajc] /home/liberty/mp/android/AnyMemo/src/com/example/android/apis/graphics/FingerPaint.java:22
8 [error] The constructor ColorPickerDialog(FingerPaint, FingerPaint, int) is undefined
[ant:iajc] new ColorPickerDialog(this, this, mPaint.getColor()).show();
[ant:iajc] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[ant:iajc] /home/liberty/mp/android/AnyMemo/src/com/example/android/apis/graphics/FingerPaint.java:25
4 [error] The method onOptionsItemSelected(MenuItem) is undefined for the type GraphicsActivity
[ant:iajc] return super.onOptionsItemSelected(item);
[ant:iajc]              ^^^^^^^^^^^^
[ant:iajc] /home/liberty/mp/android/AnyMemo/src/com/example/android/apis/graphics/FingerPaint.java:25
8 [error] The method getDefaultSharedPreferences(Context) in the type PreferenceManager is not applic
able for the arguments (FingerPaint)
[ant:iajc] SharedPreferences shre = PreferenceManager.getDefaultSharedPreferences(this);
[ant:iajc]

编辑：这是适用于我的项目的最终build.gradle文件： https://code.google.com/p/anymemo/source/browse/build.gradle?spec=svnf85aaa4b2d78c62876d0e1f6c3e28252bf03f820&r=f85aaa4b2d78c62876d0e1f6c3e28252bf03f820

Answer 1

我也想在gradle和Android Studio中使用aspectj，我终于让它工作了，但我仍然有一些手写的路径，我想用更通用的gradle选项替换。

编辑：我用基于gradle的替代方法替换了每个硬编码的绝对路径，因此该解决方案不再依赖于给定的平台或用户名。但是，它仍然使用相对路径，可以从IDE更改为其他版本或Android Studio的其他版本。另外，我对找到android.jar的方式并不满意。

我首先加载aspectj：

configurations {
ajc
aspects
ajInpath
}

ext.aspectjVersion = '1.7.3'

dependencies {
    compile project(":LibTest")

    ajc "org.aspectj:aspectjtools:${aspectjVersion}"
    compile "org.aspectj:aspectjrt:${aspectjVersion}"
    compile 'com.android.support:appcompat-v7:18.0.0'
}

然后我添加一个将在当前变体的JavaCompile任务之后运行的任务：

android.applicationVariants.all { variant ->

    variant.javaCompile.doLast {
        def androidSdk = android.adbExe.parent + "/../platforms/" + android.compileSdkVersion + "/android.jar"

        def iajcClasspath = configurations.compile.asPath + ";" + androidSdk
        configurations.compile.dependencies.each { dep ->
            if(dep.hasProperty("dependencyProject")) {
                iajcClasspath += ":" + dep.dependencyProject.buildDir + "/bundles/release/classes.jar"
            }
        }

        ant.taskdef( resource:"org/aspectj/tools/ant/taskdefs/aspectjTaskdefs.properties", classpath: configurations.ajc.asPath)
        ant.iajc (
                source:sourceCompatibility,
                target:targetCompatibility,
                destDir:"${project.buildDir}/classes/${variant.dirName}",
                maxmem:"512m",
                fork:"true",
                aspectPath:configurations.aspects.asPath,
                inpath:configurations.ajInpath.asPath,
                sourceRootCopyFilter:"**/.svn/*,**/*.java",
                classpath:iajcClasspath
        ){
            sourceroots{
                android.sourceSets.main.java.srcDirs.each{
                    pathelement(location:it.absolutePath)
                }
                pathelement(location:"${project.buildDir}/source/r/${variant.dirName}")
            }
        }
    }
}

无论我使用${variant.dirName}，根据当前的构建配置，它将被“debug”或“release”替换。

编译Android特定类需要将android.jar添加到类路径中，并且需要使用行pathelement(location:"${project.buildDir}/source/r/${variant.dirName}")来使用自动生成的R.java文件中的类。

编辑：对构建iajcClasspath的项目依赖项的迭代允许您使用库项目中的类。 configurations.compile.asPath已经包含对你的apklib（aar文件）的引用，它实际上是一个包含jar和库资源的zip。 Iajc不识别这些文件，但是在build目录下有一个包含classes.jar的包目录。我在其中使用了一个带有“release”硬编码的相对路径，因为在我的情况下，库与主项目有不同的变体，所以我不能在这里使用${variant.dirName}。

这是完整的build.gradle文件：

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.5.+'
    }
}
apply plugin: 'android'

repositories {
    mavenCentral()
}

android {
    compileSdkVersion 18
    buildToolsVersion "18.1.0"

    defaultConfig {
        minSdkVersion 7
        targetSdkVersion 18
    }
}

configurations {
    ajc
    aspects
    ajInpath
}

ext.aspectjVersion = '1.7.3'

dependencies {
    compile project(":LibTest")

    ajc "org.aspectj:aspectjtools:${aspectjVersion}"
    compile "org.aspectj:aspectjrt:${aspectjVersion}"
    compile 'com.android.support:appcompat-v7:18.0.0'
}

android.applicationVariants.all { variant ->

    variant.javaCompile.doLast {
        def androidSdk = android.adbExe.parent + "/../platforms/" + android.compileSdkVersion + "/android.jar"

        def iajcClasspath = configurations.compile.asPath + ";" + androidSdk
        configurations.compile.dependencies.each { dep ->
            if(dep.hasProperty("dependencyProject")) {
                iajcClasspath += ":" + dep.dependencyProject.buildDir + "/bundles/release/classes.jar"
            }
        }

        ant.taskdef( resource:"org/aspectj/tools/ant/taskdefs/aspectjTaskdefs.properties", classpath: configurations.ajc.asPath)
        ant.iajc (
                source:sourceCompatibility,
                target:targetCompatibility,
                destDir:"${project.buildDir}/classes/${variant.dirName}",
                maxmem:"512m",
                fork:"true",
                aspectPath:configurations.aspects.asPath,
                inpath:configurations.ajInpath.asPath,
                sourceRootCopyFilter:"**/.svn/*,**/*.java",
                classpath:iajcClasspath
        ){
            sourceroots{
                android.sourceSets.main.java.srcDirs.each{
                    pathelement(location:it.absolutePath)
                }
                pathelement(location:"${project.buildDir}/source/r/${variant.dirName}")
            }
        }
    }
}

Answer 2

我发现AAR不能在我的代码中用作jar库。如果你使用像这样的依赖

compile 'com.android.support:appcompat-v7:18.0.0'

您需要找到jar文件并添加到类路径中。以下代码将执行此操作。

tree = fileTree(dir: "${project.buildDir}/exploded-bundles", include: '**/classes.jar')
tree.each { jarFile ->
    iajcClasspath += ":" + jarFile
}

所以整个部分将是：

variant.javaCompile.doLast {
    // Find the android.jar and add to iajc classpath
    def androidSdk = android.adbExe.parent + "/../platforms/" + android.compileSdkVersion + "/android.jar"
    println 'Android SDK android.jar path: ' + androidSdk

    def iajcClasspath = androidSdk + ":" + configurations.compile.asPath
    configurations.compile.dependencies.each { dep ->
        if(dep.hasProperty("dependencyProject")) {
            iajcClasspath += ":" + dep.dependencyProject.buildDir + "/bundles/release/classes.jar"
        }
    }

    // handle aar dependencies pulled in by gradle (Android support library and etc)
    tree = fileTree(dir: "${project.buildDir}/exploded-bundles", include: '**/classes.jar')
    tree.each { jarFile ->
        iajcClasspath += ":" + jarFile
    }
        println 'Classpath for iajc: ' + iajcClasspath

        ant.taskdef( resource:"org/aspectj/tools/ant/taskdefs/aspectjTaskdefs.properties", classpath: configurations.ajc.asPath)

有关完整示例，请参阅AnyMemo项目的build.gradle： https://code.google.com/p/anymemo/source/browse/build.gradle?spec=svnf85aaa4b2d78c62876d0e1f6c3e28252bf03f820&r=f85aaa4b2d78c62876d0e1f6c3e28252bf03f820

Answer 3

虽然以前的答案脚本适用于大多数情况，但它们并未涵盖使用Android与AspectJ和Gradle的一些问题。

我的测试是创建一个库项目，任何人都可以通过mavenCentral或我作为参考库项目和测试应用程序项目使用它。图书馆项目具有所有方面，应用程序测试试图使用这些方面。将此作为上下文，生成的项目结构为：

HEAD-Gradle
---LibraryProject
-------SomeAspects
---TestApplication
-------Uses-SomeAspects

我发现使其有效的解决方案是：

1-对于图书馆项目，您必须使用

libraryVariants.all { variant ->

而不是

android.applicationVariants.all { variant ->

2-构建目录已更改为19. + Android构建工具，因此在一条评论中建议（感谢“WithoutClass”），您必须使用explosion-aar目录而不是explosion-bundles目录树变量定义。从：

def tree = fileTree(dir: "${project.buildDir}/exploded-bundles", include: '**/classes.jar')

要：

def tree = fileTree(dir: "${project.buildDir}/exploded-aar", include: '**/classes.jar')

3-进行集成时遇到的最后一个问题是，如果您有一个库项目，则在子项目中找不到定义的方面。要解决此问题，您必须将自定义库的classes.jar添加到aspectJ编译器配置中。您可以通过添加依赖项来实现此目的：

aspects project(":YourLibraryProject")

并且还需要对本文最后提供的脚本进行一些更改。

现在，我能想象的最佳脚本完全支持使用偶数库项目的aspectj：

对于依赖项：

configurations {
    ajc
    aspects
    ajInpath
}

//Version of aspectj
def aspectjVersion = '1.8.+'
// The dependencies for this project
dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    //Your dependencies to a custom library project
    compile project(":YourLibraryProject")
    aspects project(":YourLibraryProject")
    //Aspectj dependencies
    ajc "org.aspectj:aspectjtools:${aspectjVersion}"
    compile "org.aspectj:aspectjrt:${aspectjVersion}"
}

编译器运行脚本

android.applicationVariants.all { variant ->

variant.javaCompile.doLast {
    // Find the android.jar and add to iajc classpath
    def androidSdk = android.adbExe.parent + "/../platforms/" + android.compileSdkVersion + "/android.jar"

    def iajcClasspath = androidSdk + ":" + configurations.compile.asPath
    //This line and the fordward assignations allow the aspects support in the child project from the library project
    def customAspectsPath = configurations.aspects.asPath
    configurations.compile.dependencies.each { dep ->
        if(dep.hasProperty("dependencyProject")) {
            iajcClasspath += ":" + dep.dependencyProject.buildDir + "/bundles/${variant.buildType.name}/classes.jar"
            customAspectsPath += ":" + dep.dependencyProject.buildDir + "/bundles/${variant.buildType.name}/classes.jar"
        }
    }

    // handle aar dependencies pulled in by gradle (Android support library and etc)

    def tree = fileTree(dir: "${project.buildDir}/exploded-aar", include: '**/classes.jar')
    tree.each { jarFile ->
        iajcClasspath += ":" + jarFile
    }

    ant.taskdef( resource:"org/aspectj/tools/ant/taskdefs/aspectjTaskdefs.properties", classpath: configurations.ajc.asPath)
    ant.iajc (
            source:sourceCompatibility,
            target:targetCompatibility,
            destDir:"${project.buildDir}/classes/${variant.dirName}",
            maxmem:"512m",
            fork:"true",
            aspectPath:customAspectsPath,
            inpath:configurations.ajInpath.asPath,
            sourceRootCopyFilter:"**/.svn/*,**/*.java",
            classpath:iajcClasspath
    ){
        sourceroots{
            android.sourceSets.main.java.srcDirs.each{
                pathelement(location:it.absolutePath)
            }
            pathelement(location:"${project.buildDir}/source/r/${variant.dirName}")
        }
    }
}
}

请记住，如果要在库子项目上运行AspectJ，则必须在库的build.gradle上也有此脚本。

Answer 4

在使用Android Studio 0.8或更高版本的情况下，似乎需要使用gradle 0.12。+。

在gradle 0.12。+中，爆炸aar在build文件夹中提取，而不是在explosion-aar文件夹中提取。

因此，为了处理aar依赖项，您必须使用以下代码：

tree = fileTree(dir: "${project.buildDir}", include: '**/classes.jar')
tree.each { jarFile ->
    iajcClasspath += ":" + jarFile
}

Answer 5

另一种更简单的设置方法是使用更方便维护的android aspectj插件。 https://github.com/uPhyca/gradle-android-aspectj-plugin

Android新构建系统（gradle）和aspectj

5 个答案: