如何在android studio的gradle 4.4中发布工件（将APK上传到nexus）？

Question

I am trying to upload my APK to Nexus repository. Below code work fine until I have change gradle version

from

classpath 'com.android.tools.build:gradle:2.3.3' distributionUrl=https://services.gradle.org/distributions/gradle-3.3-all.zip mCompileSdkVersion=23 mBuildToolsVersion='25.0.0'

To

classpath 'com.android.tools.build:gradle:3.1.0' distributionUrl=https://services.gradle.org/distributions/gradle-4.4-all.zip mCompileSdkVersion=27 mBuildToolsVersion='27.0.0'

After changing versions same code is not work I am not able to understand where I found an error, Terminal not showing any error message but my APK is not uploaded in given location

following is the current configuration of my App build.gradle file

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

task uploadRelease (type: Upload){
    configuration = project.getConfigurations().getByName('archives');
    repositories {
        mavenDeployer {
            repository(  url: "http://XXXXXXXX:8081/nexus/XXXXXXXX/repositories/releases"  ) {
                authentication(userName: "MyuserName", password: "Mypassword")
            }
            pom.project {
                version "${android.defaultConfig.versionName}"
                artifactId "Collection"
                name "xxxxxxxx"
                groupId "com.xxxxxxxx.mobile.xxxxxxxx.collections"
            }
        }
    }
}

task uploadSnapshot (type: Upload){
    configuration = project.getConfigurations().getByName('archives');

    repositories {
        mavenDeployer {
            repository(  url: "http://XXXXXXXX:8081/nexus/XXXXXXXX/repositories/snapshots"  ) {
                authentication(userName: "MyuserName", password: "Mypassword")
            }
            pom.project {
                version "${android.defaultConfig.versionName}-SNAPSHOT"
                artifactId "Collection"
                name "Collection"
                groupId "com.xxxxxxxx.mobile.xxxxxxxx.collections"
            }
        }
    }
}

I use Command as - gradle assemblerelease uploadsnapshot

to build and upload APK but It does not work for gradle 4.4 Please let me know what went wrong

Answer 1

The new Android Gradle Plugin version 3.+ relocate the apk to a different paths compared to 2.2.3.

Some errors may happen at below line

configuration = project.getConfigurations().getByName('archives');

Use gradle assemblerelease uploadsnapshot --debug --info --stacktrace to gather more information and analyse the error logs.

The older apk location is

build/outputs/apk/*.apk

the apk location for AGP 3.x is

build/outputs/apk/<flavour>/<buildtype>/<name>-<buildtype>.apk 

so

def apk = file('build/outputs/apk/release/iMobility-release.apk')
artifacts {
    archives apk
}

This is to overwrite the paths of archives with the correct apk location.

Answer 2

Not the actual answer but what work for me is

Put this line below your

task uploadSnapshot (type: Upload){
    configuration = project.getConfigurations().getByName('archives');

    repositories {
        mavenDeployer {
            repository(  url: "http://XXXXXXXX:8081/nexus/XXXXXXXX/repositories/snapshots"  ) {
                authentication(userName: "MyuserName", password: "Mypassword")
            }
            pom.project {
                version "${android.defaultConfig.versionName}-SNAPSHOT"
                artifactId "Collection"
                name "Collection"
                groupId "com.xxxxxxxx.mobile.xxxxxxxx.collections"
            }
        }
    }
 } 

def apk = file('build/outputs/apk/release/iMobility-release.apk')
artifacts {
    archives apk
}

Can any one explain this why ? and have a better option then this ?