Android Studio 引入源码编译的jar包

直接引用 out\target\common\obj\JAVA_LIBRARIES\framework_intermediates目录下的相关文件，该目录下的classes-jarjar.jar 包含系统中很多接口api

Android Studio 引入源码编译的jar包
1.拷贝classes-jarjar.jar到工程libs目录并重新命名为framework.jar,并右键单击jar包 Add as Library

2. 右键Module选择“Open Module Settomgs，进入Project Structure界面，把framework.jar移到最顶上，把Scope改为Compile Only，点击确定

3.在工程的根目录下打开build.gradle，并找到allprojects，加入如下代码

    gradle.projectsEvaluated {
        tasks.withType(JavaCompile) {
            options.compilerArgs.add('-Xbootclasspath/p:app\\libs\\framework.jar')
        }
    }

4.在Module下打开build.gradle，在最后加入如下代码

preBuild {
    doLast {
        def imlFile = file(project.name + ".iml")
        println('Change ' + project.name + '.iml order')
        try {
            def parsedXml = (new XmlParser()).parse(imlFile)
            def jdkNode = parsedXml.component[1].orderEntry.find { it.'@type' == 'jdk' }
            parsedXml.component[1].remove(jdkNode)
            def sdkString = "Android API " + android.compileSdkVersion.substring("android-".length()) + " Platform"
            new groovy.util.Node(parsedXml.component[1], 'orderEntry', ['type': 'jdk', 'jdkName': sdkString, 'jdkType': 'Android SDK'])
            groovy.xml.XmlUtil.serialize(parsedXml, new FileOutputStream(imlFile))
        } catch (FileNotFoundException e) {
            // nop, iml not found
        }
    }
}

并在Module下面的build.gradle里找到defaultConfi加入multiDexEnabled = true，dependencies中添加implementation ‘com.android.support:multidex:1.0.0’,如下截图：

5.工程 clean下再次编译即可