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我想獲取用戶的購買，並且我聲稱我的Billing Service是空的，該進程在AsyncTask中運行，順便說一句，我是一個新手，以Inapp計費服務，這裏是部分我的代碼：getPurchases上的NullPointerException（）
我的服務連接：
IInAppBillingService BillingService;
private ServiceConnection ServiceConnection = new ServiceConnection() {
@Override
public void onServiceDisconnected(ComponentName name) {
BillingService = null ;
}
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
BillingService = IInAppBillingService.Stub.asInterface(service);
}
};
我的AsyncTask的部分：
@Override
protected String doInBackground(Activity... params) {
final Activity mActivity = params[0];
bindService(new Intent("com.android.vending.billing.InAppBillingService.BIND"), ServiceConnection, Context.BIND_AUTO_CREATE);
ConnectivityManager c = (ConnectivityManager) getSystemService(Service.CONNECTIVITY_SERVICE);
NetworkInfo NI = c.getActiveNetworkInfo();
if(NI == null || ! NI.isConnected()){
// do some stuff
}else{
Bundle purchases = null;
try {
purchases =
BillingService.
getPurchases(3, "le.wild.packagename", "inapp", null);
} catch (RemoteException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if(purchases.getInt("RESPONSE_CODE") == 0){
ArrayList<String> Items = purchases.getStringArrayList("INAPP_PURCHASE_ITEM_LIST");
ArrayList<String> itemsData = purchases.getStringArrayList("INAPP_PURCHASE_DATA_LIST");
boolean o = false;
for(int i = 0 ; itemsData.size() > i ; i++){
if(Items.get(i).contains("le.wild.itemName")){
o = false;
continue;
}else{
o = true;
}
}
// do some stuff
}
我現在用的是同樣的方式進行消費購買和獲取購買意圖和鄰其他功能，只有在這裏，現在它不工作！如果您需要更多信息或任何在這裏，請提前致謝！
編輯：
堆棧跟蹤：
07-22 15:58:12.830: E/AndroidRuntime(12719): FATAL EXCEPTION: AsyncTask #1
07-22 15:58:12.830: E/AndroidRuntime(12719): java.lang.RuntimeException: An error occured while executing doInBackground()
07-22 15:58:12.830: E/AndroidRuntime(12719): at android.os.AsyncTask$3.done(AsyncTask.java:299)
07-22 15:58:12.830: E/AndroidRuntime(12719): at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352)
07-22 15:58:12.830: E/AndroidRuntime(12719): at java.util.concurrent.FutureTask.setException(FutureTask.java:219)
07-22 15:58:12.830: E/AndroidRuntime(12719): at java.util.concurrent.FutureTask.run(FutureTask.java:239)
07-22 15:58:12.830: E/AndroidRuntime(12719): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
07-22 15:58:12.830: E/AndroidRuntime(12719): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
07-22 15:58:12.830: E/AndroidRuntime(12719): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
07-22 15:58:12.830: E/AndroidRuntime(12719): at java.lang.Thread.run(Thread.java:856)
07-22 15:58:12.830: E/AndroidRuntime(12719): Caused by: java.lang.NullPointerException
07-22 15:58:12.830: E/AndroidRuntime(12719): at seaskyways.quadcoremanagerplus.CoresManagement$2.doInBackground(CoresManagement.java:372)
07-22 15:58:12.830: E/AndroidRuntime(12719): at seaskyways.quadcoremanagerplus.CoresManagement$2.doInBackground(CoresManagement.java:1)
07-22 15:58:12.830: E/AndroidRuntime(12719): at android.os.AsyncTask$2.call(AsyncTask.java:287)
07-22 15:58:12.830: E/AndroidRuntime(12719): at java.util.concurrent.FutureTask.run(FutureTask.java:234)
07-22 15:58:12.830: E/AndroidRuntime(12719): ... 4 more
StackTrace好嗎？ – FabianCook
您在'onServiceDisconnected（）'中設置了'BillingService == null'。可能是當發生異常時。加上'if（BillingService！=）{purchases = BillingService ..........; }'。 – Vikram
增加stacktrace – Seaskyways