Android Open Source - Munin-for-Android Billing Service

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License

The source code is released under:

GNU General Public License

Java Source Code

package com.chteuchteu.munin.hlpr;
/*from  ww  w  .j  a v a2 s .com*/
import android.app.Activity;
import android.app.PendingIntent;
import android.app.ProgressDialog;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;

import com.android.vending.billing.IInAppBillingService;

public class BillingService {
  private static BillingService instance;
  
  private IInAppBillingService mService;
  private ServiceConnection mServiceConn;
  private Context activityContext;
  
  private boolean isBound = false;
  
  private static final int REQUEST_CODE = 1664;
  
  public static final String DONATE_1 = "donate_1";
  public static final String DONATE_2 = "donate_2";
  public static final String DONATE_5 = "donate_5";
  public static final String DONATE_20 = "donate_20";
  
  private ProgressDialog progressDialog;
  private String productToBuy;
  
  private BillingService(Context activityContext) {
    loadInstance(activityContext);
  }
  
  private BillingService(Context activityContext, String product, ProgressDialog progressDialog) {
    this.productToBuy = product;
    this.progressDialog = progressDialog;
    loadInstance(activityContext);
  }
  
  private void loadInstance(final Context activityContext) {
    if (activityContext != null && this.activityContext == null)
      this.activityContext = activityContext;
    
    mServiceConn = new ServiceConnection() {
      @Override
      public void onServiceDisconnected(ComponentName name) {
        mService = null;
      }
      @Override
      public void onServiceConnected(ComponentName name, IBinder service) {
        mService = IInAppBillingService.Stub.asInterface(service);
        
        // Service connected : we can now check if the user has purchased smth for example
        launchPurchase(productToBuy);
        
        unbind();
      }
    };
    Intent intent = new Intent("com.android.vending.billing.InAppBillingService.BIND");
    intent.setPackage("com.android.vending");
    isBound = activityContext.bindService(intent, mServiceConn, Context.BIND_AUTO_CREATE);
  }
  
  private void launchPurchase(String product) {
    progressDialog.dismiss();
    
    try {
      Bundle buyIntentBundle = mService.getBuyIntent(3, activityContext.getPackageName(), product, "inapp", "");
      PendingIntent pendingIntent = buyIntentBundle.getParcelable("BUY_INTENT");
      ((Activity) activityContext).startIntentSenderForResult(pendingIntent.getIntentSender(),
          REQUEST_CODE, new Intent(), 0, 0, 0);
    }
    catch (Exception ex) {
      ex.printStackTrace();
    }
  }
  
  private void unbind() {
    if (mService != null && isBound) {
      try {
        isBound = false;
        activityContext.unbindService(mServiceConn);
      } catch (Exception ex) { ex.printStackTrace(); }
    }
  }
  
  public static BillingService getInstance() { return instance; }
  private void setProductToBuy(String val) { this.productToBuy = val; }
  private void setProgressDialog(ProgressDialog val) { this.progressDialog = val; }
  
  public static synchronized BillingService getInstance(Context activityContext) {
    if (instance == null)
      instance = new BillingService(activityContext);
    return instance;
  }
  
  public static synchronized BillingService getInstanceAndPurchase(Context activityContext, String product,
      ProgressDialog progressDialog) {
    if (instance == null)
      instance = new BillingService(activityContext, product, progressDialog);
    else {
      // Instance already defined : just have to loadInstance again
      instance.setProductToBuy(product);
      instance.setProgressDialog(progressDialog);
      instance.loadInstance(activityContext);
    }
    return instance;
  }
}

Java Source Code List

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