Android App Bundle 不提供直接的功能设定定价策略的功能。然而，你可以通过使用内置的Google Play Billing Library来实现此目的。下面是一个使用Google Play Billing Library的示例代码，用于实现功能设定定价策略：

首先，确保你的Android项目已经集成了Google Play Billing Library。你可以在项目的build.gradle文件中添加以下依赖项：

dependencies {
    implementation 'com.android.billingclient:billing:3.0.0'
}

接下来，创建一个BillingManager类来管理与Google Play Billing服务的交互，包括查询商品信息、购买商品以及处理购买结果等功能。以下是一个简化的示例代码：

import android.app.Activity;
import android.util.Log;

import com.android.billingclient.api.BillingClient;
import com.android.billingclient.api.BillingClient.BillingResponseCode;
import com.android.billingclient.api.BillingClient.SkuType;
import com.android.billingclient.api.BillingClientStateListener;
import com.android.billingclient.api.BillingFlowParams;
import com.android.billingclient.api.BillingResult;
import com.android.billingclient.api.ConsumeParams;
import com.android.billingclient.api.ConsumeResponseListener;
import com.android.billingclient.api.Purchase;
import com.android.billingclient.api.PurchasesUpdatedListener;
import com.android.billingclient.api.SkuDetails;
import com.android.billingclient.api.SkuDetailsParams;
import com.android.billingclient.api.SkuDetailsResponseListener;

import java.util.ArrayList;
import java.util.List;

public class BillingManager implements PurchasesUpdatedListener {
    private static final String TAG = "BillingManager";

    private BillingClient billingClient;
    private Activity activity;

    public BillingManager(Activity activity) {
        this.activity = activity;
        billingClient = BillingClient.newBuilder(activity)
                .enablePendingPurchases()
                .setListener(this)
                .build();
    }

    public void startConnection() {
        billingClient.startConnection(new BillingClientStateListener() {
            @Override
            public void onBillingSetupFinished(BillingResult billingResult) {
                if (billingResult.getResponseCode() == BillingResponseCode.OK) {
                    // BillingClient is ready
                    querySkuDetails();
                }
            }

            @Override
            public void onBillingServiceDisconnected() {
                // Try to restart the connection on the next request to
                // Google Play by calling the startConnection() method.
            }
        });
    }

    private void querySkuDetails() {
        List skuList = new ArrayList<>();
        skuList.add("your_sku_id");

        SkuDetailsParams params = SkuDetailsParams.newBuilder()
                .setSkusList(skuList)
                .setType(SkuType.INAPP) // or SkuType.SUBS for subscriptions
                .build();

        billingClient.querySkuDetailsAsync(params, new SkuDetailsResponseListener() {
            @Override
            public void onSkuDetailsResponse(BillingResult billingResult, List skuDetailsList) {
                if (billingResult.getResponseCode() == BillingResponseCode.OK) {
                    // Handle the retrieved SkuDetails list
                    // e.g. display the prices and descriptions to the user
                }
            }
        });
    }

    public void initiatePurchase(String skuId) {
        BillingFlowParams flowParams = BillingFlowParams.newBuilder()
                .setSkuDetails(skuDetails) // retrieved from querySkuDetails()
                .build();

        BillingResult result = billingClient.launchBillingFlow(activity, flowParams);
        if (result.getResponseCode() == BillingResponseCode.OK) {
            // The billing flow has been initiated successfully
        }
    }

    @Override
    public void onPurchasesUpdated(BillingResult billingResult, List purchases) {
        if (billingResult.getResponseCode() == BillingResponseCode.OK && purchases != null) {
            for (Purchase purchase : purchases) {
                // Handle the purchased item, e.g. grant access to the corresponding feature
            }
        } else if (billingResult.getResponseCode() == BillingResponseCode.USER_CANCELED) {
            // The user has canceled the purchase
        } else {
            // Handle other error cases
        }
    }
}

以上是一个基本的示例代码，你需要根据你的实际需求进行修改和扩展。在你的应用中，你可以在用户点击购买按钮时调用initiatePurchase()方法，传入相应的商品 SKU ID，然后在onPurchasesUpdated()