B4A Class [CHARGEABLE] - [Class] Add In App Purchases on the fly to your B4A and B4i projects

#Region Shared Files
#CustomBuildAction: folders ready, %WINDIR%\System32\Robocopy.exe,"..\..\Shared Files" "..\Files"
'Ctrl + click to sync files: ide://run?file=%WINDIR%\System32\Robocopy.exe&args=..\..\Shared+Files&args=..\Files&FilesSync=True
#End Region

'Ctrl + click to export as zip: ide://run?File=%B4X%\Zipper.jar&Args=Project.zip

Sub Class_Globals
    Private Root As B4XView
    Private xui As XUI

    Public iap As InAppPurchases  'To be able to access it from other B4XPages
    Dim sql As SQL
End Sub

Public Sub Initialize

End Sub

'This event will be called once, before the page becomes visible.
Private Sub B4XPage_Created (Root1 As B4XView)
    Root = Root1
    Root.LoadLayout("MainPage")

    'Initialize SQL DB
    #if b4a
    sql.Initialize(File.DirInternal, "dbfilename.db", False)
    #else if b4i
    sql.Initialize(File.DirDocuments, "dbfilename.db", False)
    #End If


    'Initialize In-App Purchases class
    iap.Initialize(Me, "CodeOfAppForIdentificationInYourBackEnd", "MIIB.......", 30, sql)

    'Set the color of toastmessages
    iap.SetToastMessageColors(0xFFC8EFFF, 0xFF103E00)

    'Set IAP Messages - For Localization purposes - Some of them are just for google (under the empty line)
    iap.MessageBillingNotSupported = "The billing is not supported"
    iap.MessagePurchaseCompleted = "The purchase was completed"
    iap.MessagePurchaseNotCompleted = "The purchase was not completed"
    iap.MessageWaitToCheckInAppPurchase = "Please wait, checking in app purchase in our back end..." 'your implementation

    iap.MessageBillingUnavailable = "The billing service is unavailable"
    iap.MessageDeveloperError = "There is a developer error. Please check your code."
    iap.MessageErrorGeneral = "An error occured."
    iap.MessageFeatureNotSupported = "This feature is not supported"
    iap.MessageItemAlreadyOwned = "The item you are trying to purchase is already owned."
    iap.MessageItemUnavailable = "This item is unavailable"
    iap.MessageServiceDisconnected = "The service is disconnected"
    iap.MessageServiceTimeout = "The service has timed out"
    iap.MessageOk = "The operation you performed was successful."


    '********************************************************************************
    'Just for you to use in the activation process in the back end you 'll create
    '********************************************************************************
    iap.ActivationCode = "..............."
    iap.NumberOfActivations = 3
End Sub

'You can see the list of page related events in the B4XPagesManager object. The event name is B4XPage.


'***************************************************************************
' GET INVENTORY
'***************************************************************************
Sub Button1_Click
    Dim lProds As List
    lProds.Initialize
    lProds.Add("com.product1")
    lProds.Add("com.product2")
    lProds.Add("com.product3")
    lProds.Add("com.product4")
    iap.GetInventory(lProds, iap.ProductTypeManaged) 'or iap.GetInventory(lProds, iap.ProductTypeSubscription)

End Sub

Sub GotInventory(Products As List)
    #if b4a
    For Each p As SkuDetails In Products
        Log(p.Sku)
        Log(p.Title)
        Log(p.Description)
        Log(p.Price)
    Next
    #else if b4i
    For Each p As ProductInformation In Products
        Log(p.ProductIdentifier)
        Log(p.Title)
        Log(p.Description)
        Log(p.LocalizedPrice)
        Log(p.Tag)
    Next
    #End If

End Sub


'***************************************************************************
' GET PURCHASED GOODS
'***************************************************************************
Sub Button2_Click
    iap.GetPurchasedGoods(False, iap.ProductTypeManaged) 'or iap.GetPurchasedGoods(False, iap.ProductTypeSubscription)
End Sub

Sub GotPurchasedGoods(Purchases As Map)
    For Each s As String In Purchases.Keys
        Dim p As Purchase = Purchases.Get(s)
        #if b4a
            Log(p.Sku)
            Log(p.OrderId)
            Log(p.PurchaseState)
            Log(p.PurchaseTime)
            Log(p.PurchaseToken)
            Log(p.Signature)
            Log(p.DeveloperPayload)
            Log(p.IsAcknowledged)
            Log(p.IsAutoRenewing)
        #else if b4i
            Log(p.ProductIdentifier)
            Log(p.TransactionIdentifier)
            Log(p.TransactionDate)
            Log(p.Tag)
            Log(p.RestoredPurchase.IsInitialized = True) 'True if it is a restored purchase
            Log(p.Error)
        #End If
    Next
End Sub



'***************************************************************************
' PURCHASE PRODUCT
'***************************************************************************
Sub Button3_Click
    iap.Purchase("com.product4", iap.ProductTypeManaged, "SomeDeveloperPayloadForAndroidEmptyForIOS")
   'or   iap.Purchase("com.product4", iap.ProductTypeSubscription, "SomeDeveloperPayloadForAndroidEmptyForIOS")
End Sub

Sub PurchaseCompleted(Purchases As Map)
    For Each s As String In Purchases.Keys
        Dim p As Purchase = Purchases.Get(s)
        #if b4a
            Log(p.Sku)
            Log(p.OrderId)
            Log(p.PurchaseState)
            Log(p.PurchaseTime)
            Log(p.PurchaseToken)
            Log(p.Signature)
            Log(p.DeveloperPayload)
            Log(p.IsAcknowledged)
            Log(p.IsAutoRenewing)
        #else if b4i
            Log(p.ProductIdentifier)
            Log(p.TransactionIdentifier)
            Log(p.TransactionDate)
            Log(p.Tag)
            Log(p.RestoredPurchase.IsInitialized = True) 'True if it is a restored purchase
            Log(p.Error)
        #End If
    Next
End Sub


Sub Button4_Click
    If iap.HaveGotPurchasedGoods Then
        'mRegistered = Map with pruchased product SKUs/identifiers and true as value
        For Each productcode As String In iap.mRegistered.Keys
            Log(productcode)
        Next
    End If
End Sub


#If b4a
'***************************************************************************
' CONSUME PRODUCT
'***************************************************************************
Sub Button5_Click
    iap.Consume("com.product3", iap.ProductTypeManaged)
End Sub
#End If