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我想获取用户的购买，并且我声称我的Billing Service是空的，该进程在AsyncTask中运行，顺便说一句，我是一个新手，以Inapp计费服务，这里是部分我的代码：getPurchases上的NullPointerException（）
我的服务连接：
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
}
我现在用的是同样的方式进行消费购买和获取购买意图和邻其他功能，只有在这里，现在它不工作！如果您需要更多信息或任何在这里，请提前致谢！
编辑：
堆栈跟踪：
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好吗？ – FabianCook
您在'onServiceDisconnected（）'中设置了'BillingService == null'。可能是当发生异常时。加上'if（BillingService！=）{purchases = BillingService ..........; }'。 – Vikram
增加stacktrace – Seaskyways