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Android Library to minimize the implementation effort for In App Updates and Force Updates
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README.md

A3InAppUpdater

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all about apps

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This library aims to simplify Android In App Updates. You can force your users to update to latest app version with just a few lines of code.

BLOG POST

Visit https://code.allaboutapps.at/articles/android-in-app-updates/ to get some detailed informations about this library

DEMO VIDEOS

Flexible update

(YOUTUBE) Demo type FLEXIBLE

(YOUTUBE) Demo type IMMEDIATE

(YOUTUBE) Demo Forced update

Usage

Add to project

    implementation 'at.allaboutapps.inappupdater:inappupdater:{latest_version}'

Initialize the InAppUpdateManager

    inAppUpdateManager = InAppUpdateManager(activity)

Subscribe to updates

    inAppUpdateStatusDisposable = inAppUpdateManager.observeInAppUpdateStatus()
        .subscribe { currentStatus ->
            if (currentStatus.isUpdatePending()) { //just start the update if there is one in progress
                inAppUpdateManager.startUpdate()
            }
            updateUI(currentStatus) // update the ui when a new status arrives
        }

Update Mode

There are two modes

  • Flexible (default) - User can use the app during update download, installation and restart needs to be triggered by user

  • Immediate - User will be blocked until download and installation is finished, restart is triggered automatically

Start the update process

    inAppUpdateManager.startUpdate(updateType)

Forced updates

There are some reasons when an update is mandatory. For this case you can implement a provider interface to decide if an update is a forced update

   class DemoForceUpdateProvider : ForceUpdateProvider {

    override fun requestUpdateShouldBeImmediate(availableVersionCode: Int, doUpdate: () -> Unit) {

        // place your logic here

        // if a forced update is needed, just call doUpdate
        doUpdate()

    }

Just provide to the InAppUpdateManager a second, optional parameter

    inAppUpdateManager = InAppUpdateManager(this, DemoForceUpdateProvider())

The force update activity screen provided by Google Play Core library can be closed through the back button. So we need to override onActivityResult to force the update again

      override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        inAppUpdateManager.onActivityResult(requestCode, resultCode)
        super.onActivityResult(requestCode, resultCode, data)
    }

How to setup the demo app

In App Updates needs a newer version of the app available in Play Store.

  1. Add a SigningConfig to build.gradle
  2. Set versionCode to 9000 // or any other high number
  3. Set a unique application id
  4. Generate APK / AAB
  5. Upload APK / AAB to your play store account
  6. Do not use App signing ( Google will resign your app, so you cannot test it with local installations)
  7. Release app to play store (app must be published and available)
  8. Set versionCode to a lower number
  9. Run app

Any Troubles?

  • In-app updates are available only to user accounts that own the app. So, make sure the account you’re using has downloaded your app from Google Play at least once before using the account to test in-app updates.
  • Make sure that the app that you are testing in-app updates with has the same application ID and is signed with the same signing key as the one available from Google Play.
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