java - Android新构建系统(gradle)和aspectj

Question

在 Google IO 中，宣布新的构建系统 gradle 将取代 ant。我的项目正在使用 aspectj，我想在我的项目中使用它。我想不出一些变量来让它工作。我在那里找不到 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)
            }  
        }  
    }  
}

这是运行良好的旧 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 iajc 似乎无法识别所有库并提示找不到库中的类

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

我还想将 aspectj 与 gradle 和 Android Studio 一起使用，我终于让它工作了，但我仍然有一些我想用更通用的 gradle 选项替换的手写路径。

编辑:我用基于 gradle 的替代方案替换了每个硬编码的绝对路径，因此这个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，这些路径可能会从 IDE 更改为其他 IDE 或 Android Studio 的后续版本。另外，我对找到 android.jar 的方式并不满意。

我先加载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}")
            }
        }
    }
}

无论我在哪里使用 ${variant.dirName}，都会根据当前的构建配置将其替换为“debug”或“release”。

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

编辑: 对项目依赖项的迭代以构建 iajcClasspath 允许您使用库项目中的类。 configurations.compile.asPath 已经包含对您的 apklib(aar 文件)的引用，它实际上是一个包含 jar 和库资源的 zip。 Iajc 无法识别这些文件，但在 build 目录下有一个包含您的库的 classes.jar 的 bundle 目录。我使用其中硬编码“发布”的相对路径，因为在我的情况下，库的变体与主项目不同，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}")
            }
        }
    }
}