Integrate Meta Horizon Billing Compatibility SDK

1. In app/build.gradle.kts, create variables for the SDK versions above the dependencies block:

    val horizonBillingCompatibilitySdkVersion = "2.0.0"
    val coreKotlinVersion = "0.2.0"
   
2. At the end of the dependencies block, add the following packages:

    implementation("com.meta.horizon.billingclient.api:horizon-billing-compatibility:$horizonBillingCompatibilitySdkVersion")
    implementation("com.meta.horizon.platform.sdk:core-kotlin:$coreKotlinVersion")
   
   The variable declaration and dependencies block should now look like this:

    val horizonBillingCompatibilitySdkVersion = "2.0.0"
    val coreKotlinVersion = "0.2.0"
   
    dependencies {
    ...
    implementation("com.meta.horizon.billingclient.api:horizon-billing-compatibility:$horizonBillingCompatibilitySdkVersion")
    implementation("com.meta.horizon.platform.sdk:core-kotlin:$coreKotlinVersion")
    }
   
3. Sync your project with Gradle to download the packages.

1. In app/build.gradle.kts, create variables for the SDK versions above the dependencies block:

    val horizonBillingCompatibilitySdkVersion = "1.1.2"
    val androidPlatformSdkVersion = "72"
   
2. At the end of the dependencies block, add the following packages:

    implementation("com.meta.horizon.billingclient.api:horizon-billing-compatibility:$horizonBillingCompatibilitySdkVersion")
    implementation("com.meta.horizon.platform.ovr:android-platform-sdk:$androidPlatformSdkVersion")
   
   The variable declaration and dependencies block should now look like this:

    val horizonBillingCompatibilitySdkVersion = "1.1.2"
    val androidPlatformSdkVersion = "72"
   
    dependencies {
    ...
    implementation("com.meta.horizon.billingclient.api:horizon-billing-compatibility:$horizonBillingCompatibilitySdkVersion")
    implementation("com.meta.horizon.platform.ovr:android-platform-sdk:$androidPlatformSdkVersion")
    }
   
3. Sync your project with Gradle to download the packages.

1. Open your project folder’s build.gradle file and add the kotlin-gradle-plugin:

    buildscript {
    	dependencies {
        	classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:2.1.21"
    	}
    }
   
2. Open your app folder’s build.gradle file and apply the kotlin-android plugin:

    apply plugin: 'kotlin-android'
   
3. Add a dependency on org.jetbrains.kotlin:kotlin-stdlib-jdk7. For example:

    dependencies {
        implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:2.1.21"
    }
   
4. Sync your project by selecting Sync Now at the top of your build.gradle file in your IDE.

billingClient.queryAgeCategoryAsync(ageCategoryResponseListenerImpl)

public interface AgeCategoryResponseListener {
  // Called to notify that the query age category operation has finished.
  public void onQueryAgeCategoryResponse(
      BillingResult billingResult, @BillingClient.AgeCategory Integer ageCategory);
}

public class AgeCategoryResponseListenerImpl implements AgeCategoryResponseListener {
  void onQueryAgeCategoryResponse(
      BillingResult billingResult, @BillingClient.AgeCategory Integer ageCategory) {
    if (billingResult.getResponseCode() != BillingResponseCode.OK) {
      // handle error
      return;
    }
    switch (ageCategory) {
      case CHILD:
        // handle children (10-12, or applicable age in user's region)
        break;
      case TEEN:
        // handle teens (13-17, or applicable age in user's region)
        break;
      case ADULT:
        // handle adults (18+, or applicable age in user's region)
        break;
      case UNKNOWN:
        // handle case where we don't know the age
        break;
    }
  }
}

• Test purchase flows with test credit cards that simulate successful and failed transactions
• Reset entitlements to repeat purchase testing without real transactions
• Test with multiple accounts to verify multi-user scenarios

1. Uploaded an APK: Your app must have at least one APK uploaded to a release channel (Alpha, Beta, or RC). Monetization APIs require a package to function.
2. Created in-app products: Set up your add-ons (consumables, durables, or subscriptions) in the Developer Dashboard.
3. Created test users: Create test user accounts in the Developer Dashboard under Test Users. (If you don’t see this option, click View All at the top of the left navigation to open the Org Manager.) For detailed instructions, see Test Users.

1. Log in to your headset or the Meta Horizon mobile app as the test user.
2. Add one of the following test credit card numbers:
   • 4111 1177 1155 2927: Always succeeds
   • 4111 1193 1540 5122: Fails at sale

1. Go to the Developer Dashboard and click on your app.
2. Expand Development in the left-side navigation, and click Test Users.
3. Click the ellipsis (...) menu on the test user.
4. Click Manage Add-on Entitlements.
5. Select your app to view current entitlements.
6. Remove entitlements as needed to reset the test state.

• Complete Implement the Google Play Billing Interface.