mattiaferigutti

/**
 * @return true if the product has been purchased. Otherwise it returns false.
 */
private fun isPremiumUser() =
    billingProcessor?.isPurchased(PRODUCT_ID) == true

override fun onBillingInitialized() {
    /*
    * Called when BillingProcessor was initialized and it's ready to purchase
    */

mattiaferigutti

billingProcessor?.loadOwnedPurchasesFromGoogle()

mattiaferigutti

billingProcessor?.purchase(this, PRODUCT_ID, "DEVELOPER PAYLOAD HERE")

mattiaferigutti

private fun purchaseProduct() {
    val isOneTimePurchaseSupported = billingProcessor?.isOneTimePurchaseSupported
    if (isOneTimePurchaseSupported == true) {
        billingProcessor?.purchase(this, PRODUCT_ID)
    }
}

mattiaferigutti

package com.studio.mattiaferigutti.premiumsample

import android.content.Intent
import android.os.Bundle
import android.util.Log
import androidx.appcompat.app.AppCompatActivity
import com.anjlab.android.iab.v3.BillingProcessor
import com.anjlab.android.iab.v3.TransactionDetails
import kotlinx.android.synthetic.main.activity_main.*

mattiaferigutti

  <uses-permission android:name="com.android.vending.BILLING" />

mattiaferigutti

repositories {
  mavenCentral()
}
dependencies {
  implementation 'com.anjlab.android.iab.v3:library:1.0.44'
}

mattiaferigutti

<?xml version="1.0" encoding="utf-8"?>
<MotionScene 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:motion="http://schemas.android.com/apk/res-auto">

    <Transition
        motion:constraintSetEnd="@+id/end"
        motion:constraintSetStart="@id/start"
        motion:duration="1000">

mattiaferigutti

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.motion.widget.MotionLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/motionLayout"
    app:layoutDescription="@xml/activity_main_scene"
    tools:context=".MainActivity">

mattiaferigutti

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <com.airbnb.lottie.LottieAnimationView