net.kourlas.voipms_sms.Billing.java Source code

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Here is the source code for net.kourlas.voipms_sms.Billing.java

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/*
 * VoIP.ms SMS
 * Copyright (C) 2015 Michael Kourlas and other contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package net.kourlas.voipms_sms;

import android.app.Activity;
import android.app.PendingIntent;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.IBinder;
import com.android.vending.billing.IInAppBillingService;
import org.json.JSONObject;

import java.util.List;

public class Billing {
    private static Billing instance = null;

    Context applicationContext;
    IInAppBillingService billingService;
    ServiceConnection serviceConnection;

    /**
     * Initializes an instance of the Billing class.
     *
     * @param applicationContext The application context.
     */
    public Billing(Context applicationContext) {
        this.applicationContext = applicationContext;

        serviceConnection = new ServiceConnection() {
            @Override
            public void onServiceDisconnected(ComponentName name) {
                billingService = null;
            }

            @Override
            public void onServiceConnected(ComponentName name, IBinder service) {
                billingService = IInAppBillingService.Stub.asInterface(service);
            }
        };

        Intent serviceIntent = new Intent("com.android.vending.billing.InAppBillingService.BIND");
        serviceIntent.setPackage("com.android.vending");
        applicationContext.bindService(serviceIntent, serviceConnection, Context.BIND_AUTO_CREATE);
    }

    /**
     * Gets the sole instance of the Billing class. Initializes the instance if it does not already exist.
     *
     * @return The single instance of the Billing class.
     */
    public synchronized static Billing getInstance(Context applicationContext) {
        if (instance == null) {
            instance = new Billing(applicationContext);
        }
        return instance;
    }

    public void preDonation(final Activity sourceActivity) {
        try {
            Bundle ownedItems = billingService.getPurchases(3, applicationContext.getPackageName(), "inapp", null);
            int response = ownedItems.getInt("RESPONSE_CODE");
            if (response == 0) {
                List<String> purchaseDataList = ownedItems.getStringArrayList("INAPP_PURCHASE_DATA_LIST");
                for (String purchaseData : purchaseDataList) {
                    JSONObject json = new JSONObject(purchaseData);
                    String pid = json.getString("productId");
                    final String token = json.getString("purchaseToken");

                    if (pid.equals(applicationContext.getString(R.string.billing_pid_donation))) {
                        new AsyncTask<Void, Void, Void>() {
                            @Override
                            protected Void doInBackground(Void... params) {
                                try {
                                    billingService.consumePurchase(3, sourceActivity.getPackageName(), token);
                                } catch (Exception ignored) {
                                    // Do nothing.
                                }
                                return null;
                            }

                            @Override
                            protected void onPostExecute(Void aVoid) {
                                showDonationDialog(sourceActivity);
                            }
                        }.execute();
                        return;
                    }
                }
            }
        } catch (Exception ignored) {
            // Do nothing.
        }

        showDonationDialog(sourceActivity);
    }

    public void postDonation(final String token, final Activity sourceActivity) {
        new AsyncTask<Void, Void, Void>() {
            @Override
            protected Void doInBackground(Void... params) {
                try {
                    billingService.consumePurchase(3, sourceActivity.getPackageName(), token);
                } catch (Exception ignored) {
                    // Do nothing.
                }
                return null;
            }
        }.execute();
    }

    private void showDonationDialog(Activity sourceActivity) {
        try {
            Bundle buyIntentBundle = billingService.getBuyIntent(3, applicationContext.getPackageName(),
                    applicationContext.getString(R.string.billing_pid_donation), "inapp", null);
            PendingIntent pendingIntent = buyIntentBundle.getParcelable("BUY_INTENT");
            sourceActivity.startIntentSenderForResult(pendingIntent.getIntentSender(), 1001, new Intent(), 0, 0, 0);
        } catch (Exception ex) {
            Utils.showInfoDialog(sourceActivity, applicationContext.getString(R.string.billing_failure));
        }
    }
}