Prompt Android App User to Update App if current version <> market version

Question

Lets say my Android App version 0.1 is installed currently on the User\'s phone. Everytime they launch my App I want to check if there is a different version available in th

Answer 1

    My working Kotlin code for force App update: 

    var appUpdateManager: AppUpdateManager? = null
    const val FLEXIABLE_UPADTE: Int = 101
    const val FORCE_UPDATE: Int = 102
    const val APP_UPDATE_CODE: Int = 500

    override fun onCreate {
    // Get updateType from Webservice.
     updateApp(updateType)
    }

    private fun updateApp(statusCode: Int) {
        appUpdateManager = AppUpdateManagerFactory.create(this@MainActivity)

        val appUpdateInfoTask = appUpdateManager?.appUpdateInfo

        appUpdateInfoTask?.addOnSuccessListener { appUpdateInfo ->
            if (appUpdateInfo.updateAvailability() == UpdateAvailability.UPDATE_AVAILABLE
            ) {
                if ((statusCode == Constants.FORCE_UPDATE))
                    appUpdateManager?.startUpdateFlowForResult(
                        appUpdateInfo, AppUpdateType.IMMEDIATE, this, Constants.APP_UPDATE_CODE
                    )
                else if (statusCode == Constants.FLEXIABLE_UPADTE)
                    appUpdateManager?.startUpdateFlowForResult(
                        appUpdateInfo, AppUpdateType.FLEXIBLE, this, Constants.FLEXIABLE_UPADTE
                    )
            }
        }
    }

 override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {

 try {
            if (requestCode == Constants.APP_UPDATE_CODE && resultCode == Activity.RESULT_OK) {
                if (resultCode != RESULT_OK) {
                    appUpdateCompleted()
                }
            }
        } catch (e: java.lang.Exception) {

        }
}

 private fun appUpdateCompleted() {
       Snackbar.make(
    findViewById(R.id.activity_main_layout),
    "An update has just been downloaded.",
    Snackbar.LENGTH_INDEFINITE
).apply {
    setAction("RESTART") { appUpdateManager.completeUpdate() }
    setActionTextColor(resources.getColor(R.color.snackbar_action_text_color))
    show()
}

    }