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Add helper class to perform billing operations
Fix subscription translations.
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4 files changed

+306
-3
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4 files changed

+306
-3
lines changed

‎dynamic-billing/src/main/java/com/pranavpandey/android/dynamic/billing/model/DynamicProduct.java

+45-1
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
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/*
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* Copyright 2022 Pranav Pandey
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* Copyright 2022-2025 Pranav Pandey
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
@@ -23,6 +23,8 @@
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import com.android.billingclient.api.BillingClient;
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import java.util.regex.Pattern;
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/**
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* A class to represent the in-app product or subscription.
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*/
@@ -38,6 +40,48 @@ public class DynamicProduct implements Parcelable {
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*/
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private final @BillingClient.ProductType String type;
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/**
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* Interface to hold the period constants.
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*/
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public @interface Period {
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/**
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* Constant for the daily period.
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*/
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String DAY = "D";
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/**
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* Constant for the weekly period.
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*/
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String WEEK = "W";
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/**
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* Constant for the monthly period.
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*/
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String MONTH = "M";
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/**
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* Constant for the yearly period.
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*/
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String YEAR = "Y";
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}
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/**
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* Interface to hold the pricing and period patterns.
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*/
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public @interface Patterns {
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/**
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* Pattern to match a digit.
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*/
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Pattern DIGIT = Pattern.compile(".*\\d.*");
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/**
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* Pattern to match a number.
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*/
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Pattern NUMBER = Pattern.compile("[^0-9]");
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}
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/**
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* Constructor to initialize an object of this class.
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*

‎dynamic-billing/src/main/java/com/pranavpandey/android/dynamic/billing/util/DynamicBillingUtils.java

+259
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,259 @@
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/*
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* Copyright 2022-2025 Pranav Pandey
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.pranavpandey.android.dynamic.billing.util;
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import android.content.Context;
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import androidx.annotation.Nullable;
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import com.android.billingclient.api.ProductDetails;
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import com.pranavpandey.android.dynamic.billing.R;
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import com.pranavpandey.android.dynamic.billing.model.DynamicProduct;
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import java.util.List;
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/**
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* Helper class to perform billing related operations.
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*/
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public class DynamicBillingUtils {
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/**
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* Returns the user friendly string to display the trial information.
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*
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* @param context The context to retrieve resources.
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* @param period The ISO 8601 formatted pricing phase period.
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*
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* @return The user friendly string to display the trial information.
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*/
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public static @Nullable String getStringForFreeTrial(
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@Nullable Context context, @Nullable String period) {
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if (context == null || period == null) {
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return null;
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}
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int periodCount = Integer.parseInt(period.replaceAll(
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DynamicProduct.Patterns.NUMBER.pattern(), ""));
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if (period.contains(DynamicProduct.Period.DAY)) {
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return String.format(context.getString(
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R.string.adb_offer_free_trial_day), periodCount);
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} else if (period.contains(DynamicProduct.Period.WEEK)) {
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return String.format(context.getString(
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R.string.adb_offer_free_trial_week), periodCount);
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} else if (period.contains(DynamicProduct.Period.MONTH)) {
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return String.format(context.getString(
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R.string.adb_offer_free_trial_month), periodCount);
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} else if (period.contains(DynamicProduct.Period.YEAR)) {
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return String.format(context.getString(
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R.string.adb_offer_free_trial_year), periodCount);
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}
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return period;
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}
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/**
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* Returns the user friendly string to display the first cycle information.
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*
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* @param context The context to retrieve resources.
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* @param formattedPrice The formatted price along with the currency symbol.
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* @param period The ISO 8601 formatted pricing phase period.
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*
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* @return The user friendly string to display the first cycle information.
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*/
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public static @Nullable String getStringForFirstCycle(@Nullable Context context,
78+
@Nullable String formattedPrice, @Nullable String period) {
79+
if (context == null || period == null) {
80+
return null;
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}
82+
83+
int periodCount = Integer.parseInt(period.replaceAll(
84+
DynamicProduct.Patterns.NUMBER.pattern(), ""));
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String formattedPeriod = period;
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if (period.contains(DynamicProduct.Period.DAY)) {
88+
formattedPeriod = periodCount > 1 ? String.format(
89+
context.getString(R.string.adb_offer_first_days), periodCount)
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: context.getString(R.string.adb_offer_first_day);
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} else if (period.contains(DynamicProduct.Period.WEEK)) {
92+
formattedPeriod = periodCount > 1 ? String.format(
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context.getString(R.string.adb_offer_first_weeks), periodCount)
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: context.getString(R.string.adb_offer_first_week);
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} else if (period.contains(DynamicProduct.Period.MONTH)) {
96+
formattedPeriod = periodCount > 1 ? String.format(
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context.getString(R.string.adb_offer_first_months), periodCount)
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: context.getString(R.string.adb_offer_first_month);
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} else if (period.contains(DynamicProduct.Period.YEAR)) {
100+
formattedPeriod = periodCount > 1 ? String.format(
101+
context.getString(R.string.adb_offer_first_years), periodCount)
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: context.getString(R.string.adb_offer_first_year);
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}
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return String.format(context.getString(R.string.ads_format_blank_space),
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formattedPrice, formattedPeriod);
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}
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/**
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* Returns the user friendly string to display the base cycle information.
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*
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* @param context The context to retrieve resources.
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* @param formattedPrice The formatted price along with the currency symbol.
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* @param period The ISO 8601 formatted pricing phase period.
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*
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* @return The user friendly string to display the base cycle information.
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*/
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public static @Nullable String getStringForBaseCycle(@Nullable Context context,
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@Nullable String formattedPrice, @Nullable String period) {
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if (context == null || period == null) {
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return null;
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}
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int periodCount = Integer.parseInt(period.replaceAll(
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DynamicProduct.Patterns.NUMBER.pattern(), ""));
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String formattedPeriod = period;
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if (period.contains(DynamicProduct.Period.DAY)) {
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formattedPeriod = periodCount > 1 ? String.format(
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context.getString(R.string.adb_price_days), periodCount)
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: context.getString(R.string.adb_price_day);
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} else if (period.contains(DynamicProduct.Period.WEEK)) {
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formattedPeriod = periodCount > 1 ? String.format(
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context.getString(R.string.adb_price_weeks), periodCount)
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: context.getString(R.string.adb_price_week);
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} else if (period.contains(DynamicProduct.Period.MONTH)) {
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formattedPeriod = periodCount > 1 ? String.format(
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context.getString(R.string.adb_price_months), periodCount)
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: context.getString(R.string.adb_price_month);
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} else if (period.contains(DynamicProduct.Period.YEAR)) {
141+
formattedPeriod = periodCount > 1 ? String.format(
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context.getString(R.string.adb_price_years), periodCount)
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: context.getString(R.string.adb_price_year);
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}
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return String.format(context.getString(R.string.ads_format_blank_space),
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formattedPrice, formattedPeriod);
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}
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/**
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* Returns a string based on the formatted price, period and cycle count.
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*
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* @param context The context to retrieve resources.
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* @param formattedPrice The formatted price along with the currency symbol.
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* @param period The ISO 8601 formatted pricing phase period.
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* @param cycleCount The period cycle count.
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*
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* @return The string based on the formatted price, period and cycle count.
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*/
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public static @Nullable String getStringForPeriod(@Nullable Context context,
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@Nullable String formattedPrice, @Nullable String period, int cycleCount) {
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if (context == null || formattedPrice == null || period == null) {
163+
return null;
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}
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if (DynamicProduct.Patterns.DIGIT.matcher(formattedPrice).matches()) {
167+
if (cycleCount == 1) {
168+
return getStringForFirstCycle(
169+
context, formattedPrice, period);
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} else {
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return getStringForBaseCycle(
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context, formattedPrice, period);
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}
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} else {
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return getStringForFreeTrial(context, period);
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}
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}
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/**
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* Returns a string based on the offer pricing phase(s).
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*
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* @param context The context to retrieve resources.
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* @param pricingPhases The pricing phases.
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* @param withBase {@code true} to include base pricing phase.
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*
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* @return A string based on the offer pricing phase(s).
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*
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* @see #getStringForPeriod(Context, String, String, int)
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*/
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public static @Nullable String getPricingPhasesDetails(@Nullable Context context,
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@Nullable List<ProductDetails.PricingPhase> pricingPhases, boolean withBase) {
192+
if (context == null || pricingPhases == null) {
193+
return null;
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}
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196+
StringBuilder offerDetailsBuilder = new StringBuilder();
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for (ProductDetails.PricingPhase offerPricingPhase : pricingPhases) {
198+
if (!withBase && offerPricingPhase.getBillingCycleCount() <= 0) {
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continue;
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}
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String pricingPhaseInfo = getStringForPeriod(context,
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offerPricingPhase.getFormattedPrice(), offerPricingPhase.getBillingPeriod(),
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offerPricingPhase.getBillingCycleCount());
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if (offerDetailsBuilder.length() > 0) {
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offerDetailsBuilder.replace(0, offerDetailsBuilder.length(),
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String.format(context.getString(R.string.ads_format_next_line),
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offerDetailsBuilder, pricingPhaseInfo));
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} else {
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offerDetailsBuilder.append(pricingPhaseInfo);
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}
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}
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return offerDetailsBuilder.toString();
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}
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/**
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* Returns a string based on the offer pricing phase(s).
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*
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* @param context The context to retrieve resources.
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* @param offer The offer to retrieve the pricing phases.
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* @param withBase {@code true} to include base pricing phase.
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*
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* @return A string based on the offer pricing phase(s).
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*
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* @see #getPricingPhasesDetails(Context, List, boolean)
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*/
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public static @Nullable String getOfferDetails(@Nullable Context context,
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@Nullable ProductDetails.SubscriptionOfferDetails offer, boolean withBase) {
231+
if (context == null || offer == null) {
232+
return null;
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}
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return getPricingPhasesDetails(context,
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offer.getPricingPhases().getPricingPhaseList(), withBase);
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}
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/**
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* Returns a string based on the base offer pricing.
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*
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* @param context The context to retrieve resources.
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* @param offer The offer to retrieve the pricing phases.
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*
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* @return A string based on the base offer pricing.
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*
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* @see #getPricingPhasesDetails(Context, List, boolean)
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*/
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public static @Nullable String getOfferDetailsBase(@Nullable Context context,
250+
@Nullable ProductDetails.SubscriptionOfferDetails offer) {
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if (context == null || offer == null) {
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return null;
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}
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int size = offer.getPricingPhases().getPricingPhaseList().size();
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return getPricingPhasesDetails(context, offer.getPricingPhases()
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.getPricingPhaseList().subList(size - 1, size), true);
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}
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}

‎dynamic-billing/src/main/res/values-de/strings.xml

+1-1
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@@ -52,7 +52,7 @@
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<string name="adb_price_month">pro Monat</string>
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<string name="adb_price_months">pro %1$d Monate</string>
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<string name="adb_price_year">pro Jahr</string>
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<string name="adb_price_years">pro Jahr</string>
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<string name="adb_price_years">pro %1$d Jahre</string>
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<!-- Offers -->
5858
<string name="adb_offer_free_trial_day">%1$d&#8211;tägige kostenlose Testversion</string>

‎dynamic-billing/src/main/res/values-in/strings.xml

+1-1
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<string name="adb_offer_first_week">untuk minggu pertama</string>
6565
<string name="adb_offer_first_weeks">untuk %1$d minggu pertama</string>
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<string name="adb_offer_first_month">untuk bulan pertama</string>
67-
<string name="adb_offer_first_months">untuk bulan pertama</string>
67+
<string name="adb_offer_first_months">untuk %1$d bulan pertama</string>
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<string name="adb_offer_first_year">untuk tahun pertama</string>
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<string name="adb_offer_first_years">untuk %1$d tahun pertama</string>
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