From the second time, “Acquisition of applications” throws an exception in Android

Question

I am trying to include an application in the purchase, and I successfully went through showing the available SKUs. Now I want to make a fake purchase. So I used appId = "android.test.purchased". The first time he worked flawlessly, but from the next he throws an exception, as shown below.

Attempting to call the virtual method 'android.content.IntentSender android.app.PendingIntent.getIntentSender ()' to reference a null object

Has anyone encountered such a situation?

package com.inappbilling.poc; import java.util.ArrayList; import org.json.JSONObject; 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.Bundle; import android.os.IBinder; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import com.android.vending.billing.IInAppBillingService; public class TestInAppPurchase extends Activity { private final static String SERVICE_INTENT = "com.android.vending.billing.InAppBillingService.BIND"; private static final String _TAG = "BILLING ACTIVITY"; private final String _testSku = "android.test.purchased"; //available skus static final String SKU_7DAYS = "7days"; static final String SKU_30DAYS = "30days"; private Button _7daysPurchase = null; private Button _30daysPurchase = null; private IInAppBillingService _service = null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Log.d(_TAG, "created"); _7daysPurchase = ( Button ) findViewById(R.id.sevendays_btn); _30daysPurchase = ( Button ) findViewById(R.id.thirtydays_btn); _7daysPurchase.setOnClickListener(_purchaseListener); _30daysPurchase.setOnClickListener(_purchaseListener); } @Override protected void onStart() { super.onStart(); } OnClickListener _purchaseListener = new OnClickListener() { @Override public void onClick(View v) { switch ( v.getId() ) { case R.id.sevendays_btn: doPurchase(); break; case R.id.thirtydays_btn: break; } } }; private ServiceConnection _serviceConnection = new ServiceConnection() { @Override public void onServiceConnected(ComponentName name, IBinder service) { _service = IInAppBillingService.Stub.asInterface( service ); Log.d(_TAG, _service.toString()); } @Override public void onServiceDisconnected(ComponentName name) { _service = null; Log.d(_TAG, "destroyed"); } }; private void doPurchase(){ if ( _service == null) { Log.e( _TAG , "Billing failed: billing service is null "); return; } ArrayList testSku = new ArrayList( ); testSku.add( _testSku ); Bundle querySkus = new Bundle(); querySkus.putStringArrayList("ITEM_ID_LIST", testSku); Bundle skuDetails ; try { skuDetails = _service.getSkuDetails(3, getPackageName(), "inapp", querySkus); int response = skuDetails.getInt("RESPONSE_CODE"); if( response == 0 ){ ArrayList<String> responseList = new ArrayList<String>( ); responseList = skuDetails.getStringArrayList("DETAILS_LIST"); for( String responseString : responseList ) { JSONObject jobj = new JSONObject( responseString ); String sku = jobj.getString("productId"); if( sku.equals( _testSku )){ Bundle buyIntentBundle = _service.getBuyIntent(3, getPackageName(), sku ,"inapp","" ); PendingIntent pendingIntent = buyIntentBundle.getParcelable("BUY_INTENT"); startIntentSenderForResult(pendingIntent.getIntentSender(), 1001, new Intent(), Integer.valueOf(0), Integer.valueOf(0), Integer.valueOf(0)); } } } else { Log.e( _TAG , "Failed " ); } } catch (Exception e) { Log.e( _TAG, "Caught exception !"+ e.getMessage() ); } } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if(requestCode == 1001 ){ String purchaseData = data.getStringExtra("INAPP_PURCHASE_DATA"); if( resultCode == RESULT_OK ){ try{ JSONObject jobj = new JSONObject( purchaseData ); String sku = jobj.getString(_testSku); String paid = jobj.getString("price"); Log.v("SKU DATA", sku +"============"+ paid); }catch( Exception e) { e.printStackTrace(); } } } } @Override protected void onDestroy() { super.onDestroy(); if( _serviceConnection != null ){ unbindService( _serviceConnection ); } } } 

Answer 1

Hi, find out about solving the problem mentioned above. To get rid of this, you must clear the cache of the Google Play application on your Android phone. When we make any in-app purchases, the information is stored in the Google services.So game. After purchasing the product, play Isolates a specific sku to avoid duplicate purchases. Note. This is valid for testing purposes. Because Google Play services contain records of all the applications that are in the application, or Oauth or any other objects. Hope this helps someone who is facing this issue.

Answer 2

When we try to purchase a product that already belongs to us, we will receive a zero exception in the pending intent.

So, you need to check whether the product is purchased or not, and then initiate the purchase only if the product was not purchased.

Product purchase status can be obtained using the function

 boolean haspurchase = inventory.hasPurchase(sku_id); 

It worked for me .. !!