How to release Product flavours demo vs full in play store

Question

I want to release two apks demo_release.apk and full_release.apk to play store

But i am getting error like change versionCode of app

How to manage version codes for two different versions

I have already app_release.apk is available in play store with versionCode 52.

What i want is to release both apks demo and full version in play store. But i am too confused about how it actually works and how the users will be able to download demo and full version of app

This is my build.gradle file

apply plugin: 'com.android.application'

allprojects {
repositories {
    jcenter()
    maven {
        url "https://maven.google.com"
    }
  }
 }

android {
compileSdkVersion 26
buildToolsVersion '25.0.3'

defaultConfig {
    applicationId "com.credihealth.android"
    minSdkVersion 16
    targetSdkVersion 26
    versionCode 52
    versionName "4.2.1.1"
}

buildTypes {
    release {
        minifyEnabled true
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
    debug {
        debuggable true
    }
}

productFlavors {

    demo {
        applicationIdSuffix ".demo"
    }

    full {
        applicationIdSuffix ".full"
    }
}
}

 repositories {
mavenCentral()
flatDir {
    dirs 'libs'
}


    }

dependencies {
compile(name: "youtube_player_api", ext: "jar")
// this line must be included to integrate with Firebase
// this line must be included to use FCM

compile 'com.android.support:appcompat-v7:26.0.1'
compile 'com.android.support:design:26.0.1'
compile 'com.android.support:recyclerview-v7:26.0.1'
compile 'com.android.support:palette-v7:26.0.1'
compile 'com.android.support:cardview-v7:26.0.1'
compile 'com.squareup.retrofit:retrofit:1.9.0'
compile 'com.squareup.okhttp:okhttp:2.3.0'
compile 'com.nostra13.universalimageloader:universal-image-loader:1.9.4'
compile 'com.roomorama:caldroid:2.2.1'
compile 'com.facebook.android:facebook-android-sdk:4.7.0'
compile 'com.uncopt:android.justified:1.0'
compile 'com.yayandroid:LocationManager:2.0.3'
compile 'com.google.android.gms:play-services-plus:11.0.1'
compile 'com.google.android.gms:play-services-location:11.0.1'
compile 'com.google.android.gms:play-services-auth:11.0.1'
compile 'com.google.android.gms:play-services-analytics:11.0.1'
compile 'com.google.android.gms:play-services-maps:11.0.1'
compile 'com.hbb20:ccp:1.7.6'
compile 'com.amulyakhare:com.amulyakhare.textdrawable:1.0.1'
compile 'com.github.aakira:expandable-layout:1.6.0@aar'
compile 'com.google.firebase:firebase-core:11.0.1'
compile 'com.google.firebase:firebase-messaging:11.0.1'
compile 'com.stepstone.stepper:material-stepper:3.3.0'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
fullCompile 'com.twilio:video-android:1.3.0'
 }

 apply plugin: 'com.google.gms.google-services'

Answer 1

How to manage version codes for two different versions

You can customize the version code for each flavor.
For example:

productFlavors {
    demo {
        applicationIdSuffix ".demo"
        versionCode XX
    }
    full {
        applicationIdSuffix ".full"
        versionCode XX
    }
}

What i want is to release both apks demo and full version in play store. But i am too confused about how it actually works and how the users will be able to download demo and full version of app

It is not related to build.gradle config and it depends by your choices.