Build release apk with customize name format in Android Studio

Question

I want the .apk to be built with the following name format (with timestamp).

How can I set it?

format : {app_name}{yyyymmddhis}.apk

Answer 1

As a side note, I would really like to know where people get the objects structures of gradle build objects.

To construct this I've used some trial and errors, a bit of Googling, and this (which is out of date)

android {
    ...

    buildTypes {
        debug {
            signingConfig signingConfigs.debug
        }
        release {
            signingConfig signingConfigs.release
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
        }
        applicationVariants.all { variant ->
            variant.outputs.each { output ->
                def flavor = "default";
                if (variant.productFlavors.size() > 0)
                    flavor = variant.productFlavors.get(0);

                def initials = "DefaultFlavor";
                if (flavor.name == "flavor1")
                    initials = "F1";
                else if (flavor.name == "flavor2")
                    initials = "F2";

                def build = "Debug";
                if (variant.buildType.name == "release")
                    build = "Release"
                def finalName = variant.versionCode + "-" + initials + "-" + build + "-v" + flavor.versionName + "-MyAppName.apk";
                output.outputFile = new File(output.outputFile.parent, finalName)
            }
        }
    }
    ...
}

Ok, So as a side note, if you would like to determine the names of your libs project here is a quick script, make sure you put it in each of your library gradle build files.

android {
    ...

    defaultConfig {
        minSdkVersion 10
        targetSdkVersion 16
        versionCode 1
        versionName "1.0.4"
        project.version = versionName
    }

    libraryVariants.all { variant ->
        variant.outputs.each { output ->
            def outputFile = output.outputFile
            if (outputFile != null && outputFile.name.endsWith('.aar')) {
                def fileName = "${archivesBaseName}-v${version}.aar"
                output.outputFile = new File(outputFile.parent, fileName)
            }
        }
    }

    ...
}