重新安装应用后的谷歌应用内购买请求

Question

我在App中实现了谷歌。它的工作良好后，发布了应用程序。但我正面临一个问题。当用户安装应用程序，然后购买项目，然后卸载应用程序，重新安装，并前往购买的项目，然后应用agian锁定购买的项目，并提出购买请求。OnRestoreTransaction有问题吗？我使用的代码从谷歌在应用程序购买网站。代码如下：

 private class DungeonsPurchaseObserver extends PurchaseObserver {
        public DungeonsPurchaseObserver(Handler handler) {
            super(in_app.this, handler);
        }

        @Override
        public void onBillingSupported(boolean supported) {
            if (Consts.DEBUG) {
                Log.i(TAG, "supported: " + supported);
            }
            if (supported) {
                restoreDatabase();  

            } else {
                showDialog(DIALOG_BILLING_NOT_SUPPORTED_ID);
            }
        }

        @Override
        public void onPurchaseStateChange(PurchaseState purchaseState, String itemId,
                int quantity, long purchaseTime, String developerPayload) {
            if (Consts.DEBUG) {
                Log.i(TAG, "onPurchaseStateChange() itemId: " + itemId + " " + purchaseState);
            }

            if (purchaseState == PurchaseState.PURCHASED ) {
                finish();
            }
        }


        @Override
        public void onRequestPurchaseResponse(RequestPurchase request,
                ResponseCode responseCode) {
            if (Consts.DEBUG) {
                Log.d(TAG, request.mProductId + ": " + responseCode);
            }
            if (responseCode == ResponseCode.RESULT_OK) {
                if (Consts.DEBUG) {
                    Log.i(TAG, "purchase was successfully sent to server");
                }
            } else if (responseCode == ResponseCode.RESULT_USER_CANCELED) {
                if (Consts.DEBUG) {
                    Log.i(TAG, "user canceled purchase");
                }
            } else {
                if (Consts.DEBUG) {
                    Log.i(TAG, "purchase failed");
                }
            }
        }

        @Override
        public void onRestoreTransactionsResponse(RestoreTransactions request,
                ResponseCode responseCode) {
            if (responseCode == ResponseCode.RESULT_OK) {
                if (Consts.DEBUG) {
                    Log.d(TAG, "completed RestoreTransactions request");
                }
                // Update the shared preferences so that we don't perform
                // a RestoreTransactions again.
                SharedPreferences prefs = getPreferences(Context.MODE_PRIVATE);
                SharedPreferences.Editor edit = prefs.edit();
                edit.putBoolean(DB_INITIALIZED, true);
                edit.commit();
            } else {
                if (Consts.DEBUG) {
                    Log.d(TAG, "RestoreTransactions error: " + responseCode);
                }
            }
        }
    }


    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
        WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.in_app);

        mHandler = new Handler();
        mDungeonsPurchaseObserver = new DungeonsPurchaseObserver(mHandler);
        mBillingService = new BillingService();
        mBillingService.setContext(this);

        mPurchaseDatabase = new PurchaseDatabase(this);
        //setupWidgets();

        // Check if billing is supported.
        ResponseHandler.register(mDungeonsPurchaseObserver);
        if (!mBillingService.checkBillingSupported()) {
            showDialog(DIALOG_CANNOT_CONNECT_ID);
        }



        purchase=(Button) findViewById(R.id.purchase);
        cancel=(Button) findViewById(R.id.cancel);

        purchase.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {
                // TODO Auto-generated method stub
                if(!ownedItems.contains("android.test.refunded")){      
                    if (Consts.DEBUG) {
                        Log.d(TAG, "buying: " + "  product" + " Product Name: " + "Product");
                    }

                    if (!mBillingService.requestPurchase("android.test.refunded", mPayloadContents)) {
                        showDialog(DIALOG_BILLING_NOT_SUPPORTED_ID);
                    }
            }
            }
        });

我在应用程序内java文件的onCrearte中将其称为：这首先检查当前用户是否购买了他所要求的物品，如果没有，则发出购买请求。在OnPurchesStateChanged中，我只检查了状态是否已购买。

public void onCreate（Bundle savedInstanceState）{super.onCreate（savedInstanceState）；requestWindowFeature（window.feature_no_title）；getWindow（）.setflags（windowmanager.layoutparams.flag_fullscreen,windowmanager.layoutparams.flag_fullscreen）；setContentView（r.layout.in_app)；

    mHandler = new Handler();
    mDungeonsPurchaseObserver = new DungeonsPurchaseObserver(mHandler);
    mBillingService = new BillingService();
    mBillingService.setContext(this);

    mPurchaseDatabase = new PurchaseDatabase(this);
    //setupWidgets();

    // Check if billing is supported.
    ResponseHandler.register(mDungeonsPurchaseObserver);
    if (!mBillingService.checkBillingSupported()) {
        showDialog(DIALOG_CANNOT_CONNECT_ID);
    }
    System.out.println("for check"+getPreferences(Context.MODE_PRIVATE).getBoolean(DB_INITIALIZED, false));

    if (getPreferences(Context.MODE_PRIVATE).getBoolean(DB_INITIALIZED, false)) {
        System.out.println(mBillingService.restoreTransactions());
    }
    else{
    purchase=(Button) findViewById(R.id.purchase);
    cancel=(Button) findViewById(R.id.cancel);

    purchase.setOnClickListener(new OnClickListener() {

        public void onClick(View v) {
            // TODO Auto-generated method stub
            if(!ownedItems.contains("android.test.refunded")){      
                if (Consts.DEBUG) {
                    Log.d(TAG, "buying: " + " product" + " Product Name: " + "i");
                }


                if (!mBillingService.requestPurchase("android.test.refunded", mPayloadContents)) {
                    showDialog(DIALOG_BILLING_NOT_SUPPORTED_ID);
                }
        }
        }
    });


    cancel.setOnClickListener(new OnClickListener() {

        public void onClick(View v) {
            // TODO Auto-generated method stub
            finish();
            startActivity(new Intent(in_app.this, Main.class));
            overridePendingTransition(R.anim.slide_in_right,R.anim.slide_out_right);
        }
    });
    }
}

OnPurchaseStateChanged：

    public void onPurchaseStateChange(PurchaseState purchaseState, String itemId,
            int quantity, long purchaseTime, String developerPayload) {

        if (Consts.DEBUG) {
            Log.i(TAG, "onPurchaseStateChange() itemId: " + itemId + " " + purchaseState);
        }
        System.out.println("here for new fun");
        if (purchaseState == PurchaseState.PURCHASED ) {

            finish();
            Intent intent1 = new Intent(context,BodyParts1.class);
            context.startActivity(intent1);
        }


    }

Answer 1

为了还原所有购买的项目，您必须显式调用MBillingService.RestoreTransactions()。那么您将收到每个先前购买的项目的OnPurchaseStateChange回调。

将此代码放在oncreate方法中，它应该可以很好地工作：

if (!getPreferences(Context.MODE_PRIVATE).getBoolean(DB_INITIALIZED, false)) {
    mBillingService.restoreTransactions();
}