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Three consumable products in my own layout ...

  • July 16, 2024
  • 5 replies
  • 138 views
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Good afternoon,
Guys, please help me, I need an example code in Kotlin.
I have the simplest option: no authorization, no subscriptions, no Compose.
Only three products (Consumables), my own layout with three buttons (for each product).

How can I get the price of a product and setOnClickListener so that the process of purchasing this product begins?

 val tv_Crystals_100: TextView = findViewById(R.id.tv_Crystals_100)
 val tv_Crystals_200: TextView = findViewById(R.id.tv_Crystals_200)
 val tv_Crystals_500: TextView = findViewById(R.id.tv_Crystals_500)

 tv_Crystals_100.text = "__price_"
 tv_Crystals_100.setOnClickListener { ... }

 tv_Crystals_200.text = "__price_"
 tv_Crystals_200.setOnClickListener { ... }

 tv_Crystals_500.text = "__price_"
 tv_Crystals_500.setOnClickListener { ... }

Thanks a lot in advance
Denis

Best answer by sharif

Hi @Denis-44aa44,

We have an ongoing support ticket about this but I will also answer your question here.

To get the price of a product:

private fun fetchProductDetails() {
    Purchases.sharedInstance.getProducts(productIds, object : ReceiveProductsCallback {
        override fun onReceived(products: List<StoreProduct>) {
            products.forEach { product ->
                when (product.identifier) {
                    "your tvCrystals100 product" -> tvCrystals100.text = product.price
                    "your tvCrystals200 product" -> tvCrystals200.text = product.price
                    "your tvCrystals500 product" -> tvCrystals500.text = product.price
                }
            }
        }

        override fun onError(error: PurchasesError) {
            // Handle error
            Log.e("RevenueCat", "Error fetching products: ${error.message}")
        }
    })
}

To purchase products using setOnClickListener:

val tv_Crystals_100: TextView = findViewById(R.id.tv_btn_Buy_01)
val tv_Crystals_200: TextView = findViewById(R.id.tv_btn_Buy_02)
val tv_Crystals_500: TextView = findViewById(R.id.tv_btn_Buy_03)

tv_Crystals_100.text = "___"
tv_Crystals_100.setOnClickListener { purchaseProduct(<put your product ID here>) }

tv_Crystals_200.text = "___"
tv_Crystals_200.setOnClickListener { purchaseProduct(<put your product ID here>) }

tv_Crystals_500.text = "___"
tv_Crystals_500.setOnClickListener { purchaseProduct(<put your product ID here>) }


private fun purchaseProduct(productId: String) {
    Purchases.sharedInstance.purchaseProduct(this, productId, object : PurchaseCompletedCallback {
        override fun onCompleted(purchase: Purchase, customerInfo: CustomerInfo) {
            // Handle successful purchase
        }

        override fun onError(error: PurchasesError, userCancelled: Boolean) {
            // Handle purchase error
            if (userCancelled) {
                // The user cancelled the purchase
            } else {
                // The purchase experienced an error, handle it
            }
        }
    })
}

 

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5 replies

sharif
RevenueCat Staff
Forum|alt.badge.img+9
  • sharif
  • RevenueCat Staff
  • Answer
  • July 18, 2024

Hi @Denis-44aa44,

We have an ongoing support ticket about this but I will also answer your question here.

To get the price of a product:

private fun fetchProductDetails() {
    Purchases.sharedInstance.getProducts(productIds, object : ReceiveProductsCallback {
        override fun onReceived(products: List<StoreProduct>) {
            products.forEach { product ->
                when (product.identifier) {
                    "your tvCrystals100 product" -> tvCrystals100.text = product.price
                    "your tvCrystals200 product" -> tvCrystals200.text = product.price
                    "your tvCrystals500 product" -> tvCrystals500.text = product.price
                }
            }
        }

        override fun onError(error: PurchasesError) {
            // Handle error
            Log.e("RevenueCat", "Error fetching products: ${error.message}")
        }
    })
}

To purchase products using setOnClickListener:

val tv_Crystals_100: TextView = findViewById(R.id.tv_btn_Buy_01)
val tv_Crystals_200: TextView = findViewById(R.id.tv_btn_Buy_02)
val tv_Crystals_500: TextView = findViewById(R.id.tv_btn_Buy_03)

tv_Crystals_100.text = "___"
tv_Crystals_100.setOnClickListener { purchaseProduct(<put your product ID here>) }

tv_Crystals_200.text = "___"
tv_Crystals_200.setOnClickListener { purchaseProduct(<put your product ID here>) }

tv_Crystals_500.text = "___"
tv_Crystals_500.setOnClickListener { purchaseProduct(<put your product ID here>) }


private fun purchaseProduct(productId: String) {
    Purchases.sharedInstance.purchaseProduct(this, productId, object : PurchaseCompletedCallback {
        override fun onCompleted(purchase: Purchase, customerInfo: CustomerInfo) {
            // Handle successful purchase
        }

        override fun onError(error: PurchasesError, userCancelled: Boolean) {
            // Handle purchase error
            if (userCancelled) {
                // The user cancelled the purchase
            } else {
                // The purchase experienced an error, handle it
            }
        }
    })
}

 

Sharif
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Forum|alt.badge.img+2
  • Denis-44aa44
  • Author
  • New Member
  • July 20, 2024

Thank you very much for your help. But I still can't do it.

Android Studio states that purchaseProduct is already deprecated.

productId an error occurs that (Type mismatch, Required:
StoreProduct, Found: String)

Please help me

D
Forum|alt.badge.img+2
  • Denis-44aa44
  • Author
  • New Member
  • July 21, 2024

Thank you very much for your help.
It seems like I figured it out, but I had to replace something in your code.

Denis

sharif
RevenueCat Staff
Forum|alt.badge.img+9
  • sharif
  • RevenueCat Staff
  • July 24, 2024

Hi @Denis-44aa44,

Thanks for confirming you got it working! If you are able, please share what changes you had to make so that I can fix my original answer. If you are not able then no problem, I’m glad it’s working now.

Sharif
D
Forum|alt.badge.img+2
  • Denis-44aa44
  • Author
  • New Member
  • July 24, 2024

Yes, of course, here is an example of code that works for me.
Let me remind you that I have the simplest option.
Three buttons, three products (Consumables), and my own layout.

1  Kotlin

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.xxxxxxxxxxxxx)

        Purchases.logLevel = LogLevel.DEBUG
        Purchases.configure(PurchasesConfiguration.Builder(this, "goog_xxxxxxxxxxxxxxxxxxxxx").appUserID(null).build())

        fetchProductDetails()
    }

2  Kotlin

    private fun fetchProductDetails() {

        val tv_btn_Buy_01: TextView = findViewById(R.id.tv_btn_Buy_01)
        val tv_btn_Buy_02: TextView = findViewById(R.id.tv_btn_Buy_02)
        val tv_btn_Buy_03: TextView = findViewById(R.id.tv_btn_Buy_03)


            Purchases.sharedInstance.getProducts( productIds, object : GetStoreProductsCallback {            

                override fun onReceived(products: List<StoreProduct>) {
                    products.forEach { product ->
                        when (product.id) { 

                            "crystals_100" -> { tv_btn_Buy_01.text = product.price.formatted; tv_btn_Buy_01.setOnClickListener { purchaseProduct( product.copyWithOfferingId(product.id) ) } }   
                            "crystals_200" -> { tv_btn_Buy_02.text = product.price.formatted; tv_btn_Buy_02.setOnClickListener { purchaseProduct( product.copyWithOfferingId(product.id) ) } }
                            "crystals_500" -> { tv_btn_Buy_03.text = product.price.formatted; tv_btn_Buy_03.setOnClickListener { purchaseProduct( product.copyWithOfferingId(product.id) ) } }

                        }
                    }
                }

                override fun onError(error: PurchasesError) {

                    buildError(error.message)

                    with(error) {
                        when (code) {
                            PurchasesErrorCode.PurchaseNotAllowedError -> {  ....   }
                            .... -> { .... }
                            else -> { .... }
                        }

                    }
                }


            })
        }

3  Kotlin

        private fun purchaseProduct(productId: StoreProduct) {   

            Purchases.sharedInstance.purchaseWith(
                PurchaseParams.Builder(this, productId).build(),
                onError = { error, userCancelled ->
                      buildError(error.message)
                 },
                onSuccess = { storeTransaction, customerInfo ->

                        when (productId.id) {  
                            "crystals_100" -> {addPurchasedCrystals(100)}
                            "crystals_200" -> {addPurchasedCrystals(200)}
                            "crystals_500" -> {addPurchasedCrystals(500)}
                        }

                }
            )
        }

 

If I have a mistake or something that can be improved, please write.

Now I'm sorting out errors when making a purchase.
And I don’t quite understand what and how errors need to be handled.
For example this: PurchasesErrorCode.OperationAlreadyInProgressError.

This parameter Purchases.logLevel = LogLevel.DEBUG is needed for debugging. What should this parameter be for shopping to work as usual?


Sincerely,
Denis

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