安卓在gradle中打包apk task buildApk

task buildApk {
    dependsOn build
    doLast {
        android.applicationVariants.all { variant ->
            def buildType = variant.buildType.name
            def versionName = variant.versionName
            def versionCode = variant.versionCode
            //打包文件输出路径
            def outputDirectory = new File(project.rootDir, "dists/${versionName}")
            if (buildType == "release") {
                variant.outputs.all { output ->
                    def abiName = output.getFilter("ABI") ?: "universal"
                    def filename = "${applicationId}-${versionName}-${versionCode}"
                    copy {
                        from "${buildDir}/outputs/mapping/Release"
                        include "mapping.txt"
                        into outputDirectory
                        rename { "${filename}-mapping.txt" }
                    }
                    copy {
                        from "${buildDir}/outputs/apk/release"
                        include "${project.name}-${abiName}-release.apk"
                        into outputDirectory
                        rename { "${filename}-${abiName}.apk" }
                    }
                }
            }
        }
    }
}

打包前必须配置好签名等信息