Libgdx和Google In-App-Purchase结果
我按照这些说明使用ActionResolver接口集成了Libgdx和本机android代码。 我从我的代码的Libgdx部分调用Android方法没有问题。 但是，当我尝试将Google IAP与Libgdx集成时，我正在走向死胡同。 根据TrivialDrive示例，它使用mPurchaseFinishedListener（在调用方法之外）。
我的问题是：如何将此IAP结果代码传递回Libgdx，因为侦听器在调用方法之外？ 目前，购买过程已经完成，但我的代码中的libgdx部分未被“通知”购买状态/结果。
这是我的代码：
任何帮助深表感谢。
ActionResolver：
public interface IActionResolver { public int requestIabPurchase(int product); } 主要活动：
public class MainActivity extends AndroidApplication implements IActionResolver { // Debug tag, for logging static final String TAG = "greatgame"; // Does the user have the premium upgrade? boolean mIsUpgraded = false; // SKUs for our products: the cat, all, or pow static final String SKU_UPGRADE = "android.test.purchased"; // (arbitrary) request code for the purchase flow static final int RC_REQUEST = 10001; // The helper object IabHelper mHelper; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN); getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); AndroidApplicationConfiguration cfg = new AndroidApplicationConfiguration(); cfg.useGL20 = false; initialize(new Catland(this), cfg); } void iAbStartup() { String base64EncodedPublicKey = "some key"; // Create the helper, passing it our context and the public key to verify signatures with Log.d(TAG, "Creating IAB helper."); mHelper = new IabHelper(this, base64EncodedPublicKey); // enable debug logging (for a production application, you should set this to false). mHelper.enableDebugLogging(true); // Start setup. This is asynchronous and the specified listener // will be called once setup completes. Log.d(TAG, "Starting setup."); mHelper.startSetup(new IabHelper.OnIabSetupFinishedListener() { public void onIabSetupFinished(IabResult result) { Log.d(TAG, "Setup finished."); if (!result.isSuccess()) { // Oh noes, there was a problem. Log.d(TAG, "Problem setting up in-app billing: " + result); return; } // Have we been disposed of in the meantime? If so, quit. if (mHelper == null) { return; } // IAB is fully set up. Now, let's get an inventory of stuff we own. Log.d(TAG, "Setup successful. Querying inventory."); mHelper.queryInventoryAsync(mGotInventoryListener); } }); } // Listener that's called when we finish querying the items and subscriptions we own IabHelper.QueryInventoryFinishedListener mGotInventoryListener = new IabHelper.QueryInventoryFinishedListener() { public void onQueryInventoryFinished(IabResult result, Inventory inventory) { Log.d(TAG, "Query inventory finished."); // Have we been disposed of in the meantime? If so, quit. if (mHelper == null) { return; } // Is it a failure? if (result.isFailure()) { Log.d(TAG, "Failed to query inventory: " + result); return; } Log.d(TAG, "Query inventory was successful."); // Do we have the SKU_UPGRADE upgrade? Purchase thisUpgrade = inventory.getPurchase(SKU_UPGRADE); mIsUpgraded = (thisUpgrade != null && verifyDeveloperPayload(thisUpgrade)); Log.d(TAG, "User is " + (mIsUpgraded ? "Upgraded" : "Free")); Log.d(TAG, "Initial inventory query finished; enabling main UI."); runPurchaseFlow(submitProduct); } }; // Run real purchase flow public void runPurchaseFlow(int product) { Log.d(TAG, "runPurchaseFlow"); /* TODO: for security, generate your payload here for verification. See the comments on * verifyDeveloperPayload() for more info. Since this is a SAMPLE, we just use * an empty string, but on a production app you should carefully generate this. */ String payload = ""; if (product == 1) mHelper.launchPurchaseFlow(this, SKU_UPGRADE, RC_REQUEST, mPurchaseFinishedListener, payload); } // Callback for when a purchase is finished IabHelper.OnIabPurchaseFinishedListener mPurchaseFinishedListener = new IabHelper.OnIabPurchaseFinishedListener() { public void onIabPurchaseFinished(IabResult result, Purchase purchase) { Log.d(TAG, "Purchase finished: " + result + ", purchase: " + purchase); // if we were disposed of in the meantime, quit. if (mHelper == null) return; if (result.isFailure()) { Log.d(TAG, "Error purchasing: " + result); return; } if (!verifyDeveloperPayload(purchase)) { Log.d(TAG, "Error purchasing. Authenticity verification failed."); return; } Log.d(TAG, "Purchase successful."); if (purchase.getSku().equals(SKU_CAT)) { // bought the upgrade! Log.d(TAG, "Purchase Upgrade. Congratulating user."); mIsUpgraded = true; // how do i pass this result to the libgdx? } } }; /** Verifies the developer payload of a purchase. */ boolean verifyDeveloperPayload(Purchase p) { String payload = p.getDeveloperPayload(); return true; } @Override public int requestIabPurchase(int product) { iAbStartup(); return 0; // how do i get the result from mPurchaseFinishedListener? } }
PurchaseScreen
result = greatgame.actionResolver.requestIabPurchase(1);
您将无法从requestIabPurchase（）返回结果 – 这样做的唯一方法会阻塞很长时间。 在我看来，最好的方法是创建自己的LibGdx项目实现的侦听器接口，并将其传递到您的请求接口。 例如：
在你的libGdx项目的某个地方：
interface PurchaseCallback { public int setPurchaseResult(int result); }
ActionResolver：
public interface IActionResolver { public int requestIabPurchase(int product, PurchaseCallback callback); }
在PurchaseScreen中，实现PurchaseCallback：
@override public int setPurchaseResult(int result) { // Yay! I have a result from a purchase! Maybe you want a boolean instead of an int? I don't know. Maybe an int (for the product code) and a boolean. }
…并传递任何实现PurchaseCallback的东西（我假设你的PurchaseScreen自己做）：
result = greatgame.actionResolver.requestIabPurchase(1, this);
最后，将它全部挂在MainActivity中：
PurchaseCallback mCallback = null; mPurchaseFinishedListener = ... etc. etc. . . . if (mCallback != null) { mCallback.setPurchaseResult(0); } . . . @Override public int requestIabPurchase(int product, PurchaseCallback callback) { mCallback = callback; // save this for later iAbStartup(); return 0; }
请注意，您应该在mPurchaseFinishedListener return任何地方调用PurchaseCallback.setPurchaseResult（），而不仅仅是在行// how do i pass this result to the libgdx? – 否则，您永远不会知道购买是否失败或者是否需要很长时间。