我有以下方法(第一次效果很好):
public void TipUs(){
String sku="tip_us";
try {
Bundle buyIntentBundle = mService.getBuyIntent(3, getPackageName(),
sku, "inapp", "TIP_US");
PendingIntent pendingIntent = buyIntentBundle.getParcelable("BUY_INTENT");
startIntentSenderForResult(pendingIntent.getIntentSender(),
1001, new Intent(),
Integer.valueOf(0), Integer.valueOf(0),
Integer.valueOf(0));
} catch (RemoteException e) {
e.printStackTrace();
} catch (SendIntentException e) {
e.printStackTrace();
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == 1001)
{
int responseCode = data.getIntExtra("RESPONSE_CODE", 0);
String purchaseData = data.getStringExtra("INAPP_PURCHASE_DATA");
String dataSignature = data.getStringExtra("INAPP_DATA_SIGNATURE");
if (resultCode == RESULT_OK) {
try {
JSONObject jo = new JSONObject(purchaseData);
String sku = jo.getString("productId");
}
catch (JSONException e) {
e.printStackTrace();
}
}
}
}
如果我再次尝试使用相同的方法(根据 Google Play 中的设置应该可以),我会收到以下错误:
java.lang.NullPointerException
at com.appiclife.tipcal.Tip_Calculator.TipUs(Tip_Calculator.java:521)
at com.appiclife.tipcal.Tip_Calculator.onClick(Tip_Calculator.java:350)
at android.view.View.performClick(View.java:2485)
at android.view.View$PerformClick.run(View.java:9080)
at android.os.Handler.handleCallback(Handler.java:587)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:3687)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
at dalvik.system.NativeStart.main(Native Method)
有没有人有这个错误,因为我完全使用了谷歌的演示,我应该改变什么?
编辑:看起来 mService 是空的(虽然奇怪的是,它只工作了一次,所以如果你不止一次购买同一个项目,这看起来几乎是个问题)。我有以下内容:
这是我的代码:
OnCreate()
Intent("com.android.vending.billing.InAppBillingService.BIND"),
mServiceConn, Context.BIND_AUTO_CREATE);
和:
IInAppBillingService mService;
ServiceConnection mServiceConn = new ServiceConnection() {
public void onServiceConnected(ComponentName name,
IBinder service) {
System.out.println("Test!");
mService = IInAppBillingService.Stub.asInterface(service);
}
public void onServiceDisconnected(ComponentName name) {
mService = null;
}
};
onServiceConnected 永远不会被调用。我在手册中没有看到这个:http: //developer.android.com/google/play/billing/billing_integrate.html
但我尝试将以下服务添加到清单中,但没有结果(我再次删除它,我应该在那里声明服务吗?):
<service android:name="com.android.vending.billing.IInAppBillingService" />