我在Android上实现了关于如何实现In-App Billing（IAB）的示例。下面是我必须添加到我的代码中以使其工作的10个类之一。我以为我有它工作但是当我在手机上测试它并导航应用程序到下面的BibleStudy活动时，屏幕加载然后开始“闪烁”或者可能反复重新加载屏幕所以它看起来像就像屏幕一遍又一遍地闪烁。
我不完全理解这个类中的IAB进程（以及其他9个classess，就此而言）所以我对下面的代码中的错误位置感到有些困惑。
所以我的问题是，我的下面的代码是什么让我的活动在加载时不断闪烁？
public class BibleStudy extends SwarmActivity {
static final String SKU_SPREADSHEET = "spreadsheet";
boolean mIsPurchased = false;
TextView title, link;
Button purchaseBtn;
Context c;
IabHelper mHelper;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.biblestudy);
c = this;
String base64EncodedPublicKey = a + b + d + e + f + g + h + i + j + k;
// Create the helper, passing it our context and the public key to verify signatures with
mHelper = new IabHelper(this, base64EncodedPublicKey);
// Start setup. This is asynchronous and the specified listener will be called once setup completes.
mHelper.startSetup(new IabHelper.OnIabSetupFinishedListener() {
public void onIabSetupFinished(IabResult result) {
if (!result.isSuccess()) {
// Oh noes, there was a problem.
complain("An error has occurred. We apologize for the inconvenience. " + c.getResources().getString(R.string.problem1) + " " + result);
return;
}
// Hooray, IAB is fully set up. Now, let's get an inventory of stuff we own.
mHelper.queryInventoryAsync(mGotInventoryListener);
}
});
if(mIsPurchased == true) {
purchaseBtn.setText(c.getResources().getString(R.string.thankyou2));
title.setText(c.getResources().getString(R.string.thankyou));
purchaseBtn.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
alreadyOwned();
}
});
} else {
title.setText(c.getResources().getString(R.string.biblestudy));
purchaseBtn.setText(c.getResources().getString(R.string.purchaseBtn));
purchaseBtn.setOnClickListener(new OnClickListener() {
// User clicked the "Download NOW!" button.
public void onClick(View v) {
String payload = "";
test(payload);
}
});
}
}
public void alreadyOwned() {
final Dialog dialog = new Dialog(c);
dialog.setContentView(R.layout.alreadyowned);
TextView tv = (TextView)dialog.findViewById(R.id.tv);
tv.setText(c.getResources().getString(R.string.alreadyowned));
dialog.show();
}
public void test(String payload) {
mHelper.launchPurchaseFlow(this, SKU_SPREADSHEET, 10001, mPurchaseFinishedListener, payload);
}
// 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) {
if (result.isFailure()) {
complain("An error has occurred. We apologize for the inconvenience. " + c.getResources().getString(R.string.failedtoquery) + " " + result);
return;
}
/*
* Check for items we own. Notice that for each purchase, we check
* the developer payload to see if it's correct! See
* verifyDeveloperPayload().
*/
Purchase spreadsheetPurchase = inventory.getPurchase(SKU_SPREADSHEET);
mIsPurchased = (spreadsheetPurchase != null && verifyDeveloperPayload(spreadsheetPurchase));
updateUi();
}
};
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// Pass on the activity result to the helper for handling
if(!mHelper.handleActivityResult(requestCode, resultCode, data)) {
// not handled, so handle it ourselves (here's where you'd
// perform any handling of activity results not related to in-app
// billing...
super.onActivityResult(requestCode, resultCode, data);
}
}
/** Verifies the developer payload of a purchase. */
boolean verifyDeveloperPayload(Purchase p) {
String payload = p.getDeveloperPayload();
/*
* TODO: verify that the developer payload of the purchase is correct. It will be
* the same one that you sent when initiating the purchase.
*
* WARNING: Locally generating a random string when starting a purchase and
* verifying it here might seem like a good approach, but this will fail in the
* case where the user purchases an item on one device and then uses your app on
* a different device, because on the other device you will not have access to the
* random string you originally generated.
*
* So a good developer payload has these characteristics:
*
* 1. If two different users purchase an item, the payload is different between them,
* so that one user's purchase can't be replayed to another user.
*
* 2. The payload must be such that you can verify it even when the app wasn't the
* one who initiated the purchase flow (so that items purchased by the user on
* one device work on other devices owned by the user).
*
* Using your own server to store and verify developer payloads across app
* installations is recommended.
*/
return true;
}
// Callback for when a purchase is finished
IabHelper.OnIabPurchaseFinishedListener mPurchaseFinishedListener = new IabHelper.OnIabPurchaseFinishedListener() {
public void onIabPurchaseFinished(IabResult result, Purchase purchase) {
if(result.isFailure()) {
complain("An error has occurred. We apologize for the inconvenience. " + result);
return;
}
if(!verifyDeveloperPayload(purchase)) {
complain("An error has occurred. We apologize for the inconvenience. " + c.getResources().getString(R.string.error2));
return;
}
else if(purchase.getSku().equals(SKU_SPREADSHEET)) {
// this appears to the user immediately after purchasing.
alert(c.getResources().getString(R.string.purchased));
mIsPurchased = true;
updateUi();
}
}
};
// updates UI to reflect model
public void updateUi() {
if(mIsPurchased == true) {
link.setClickable(true);
link.setMovementMethod(LinkMovementMethod.getInstance());
String a = "<a href='https://docs.google.com/spreadsheet/ccc?key=0At8avx-xtho6dHhkVzRUNkpJWFBNeGc4S3U1X0k0RFE&usp=sharing'>here</a>";
String b = c.getResources().getString(R.string.link1) + " ";
String e = " " + c.getResources().getString(R.string.link3);
String d = b + a + e;
link.setText(Html.fromHtml(d));
Intent intent = new Intent(BibleStudy.this, BibleStudy.class);
startActivity(intent);
}
}
void complain(String message) {
alert("Error: " + message);
}
void alert(String message) {
AlertDialog.Builder bld = new AlertDialog.Builder(this);
bld.setMessage(message);
bld.setNeutralButton("OK", null);
bld.create().show();
}
@Override
public void onDestroy() {
super.onDestroy();
if(mHelper != null) mHelper.dispose();
mHelper = null;
}
}
答案 0 :(得分：0)
确保您使用谷歌开发者控制台中给出的正确的base64EncodedPublicKey。
我已经看过你的代码并且有一些代码可能会解决你的错误。 您还没有将此代码放入您的活动中，请尝试在您的活动中添加此代码。但是如果它不起作用然后不删除它，它将不会影响您的代码但是它在应用程序中是必需的计费。
//你可以用这个替换BibleActivity java文件。 BibleActivity.java：
public class BibleStudy extends SwarmActivity {
static final String SKU_SPREADSHEET = "spreadsheet";
boolean mIsPurchased = false;
TextView title, link;
Button purchaseBtn;
Context c;
IabHelper mHelper;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.biblestudy);
c = this;
String base64EncodedPublicKey = a + b + d + e + f + g + h + i + j + k;
// Some sanity checks to see if the developer (that's you!) really
// followed the
// instructions to run this sample (don't put these checks on your app!)
if (base64EncodedPublicKey.contains("CONSTRUCT_YOUR")) {
throw new RuntimeException(
"Please put your app's public key in MainActivity.java. See README.");
}
// add your packageName here
if (getPackageName().startsWith("add_your_package_name_here")) {
// throw new
// RuntimeException("Please change the sample's package name! See README.");
}
// Create the helper, passing it our context and the public key to verify signatures with
mHelper = new IabHelper(this, base64EncodedPublicKey);
// Start setup. This is asynchronous and the specified listener will be called once setup completes.
mHelper.startSetup(new IabHelper.OnIabSetupFinishedListener() {
public void onIabSetupFinished(IabResult result) {
if (!result.isSuccess()) {
// Oh noes, there was a problem.
complain("An error has occurred. We apologize for the inconvenience. " + c.getResources().getString(R.string.problem1) + " " + result);
return;
}
// Hooray, IAB is fully set up. Now, let's get an inventory of stuff we own.
mHelper.queryInventoryAsync(mGotInventoryListener);
}
});
if(mIsPurchased == true) {
purchaseBtn.setText(c.getResources().getString(R.string.thankyou2));
title.setText(c.getResources().getString(R.string.thankyou));
purchaseBtn.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
alreadyOwned();
}
});
} else {
title.setText(c.getResources().getString(R.string.biblestudy));
purchaseBtn.setText(c.getResources().getString(R.string.purchaseBtn));
purchaseBtn.setOnClickListener(new OnClickListener() {
// User clicked the "Download NOW!" button.
public void onClick(View v) {
String payload = "";
test(payload);
}
});
}
}
public void alreadyOwned() {
final Dialog dialog = new Dialog(c);
dialog.setContentView(R.layout.alreadyowned);
TextView tv = (TextView)dialog.findViewById(R.id.tv);
tv.setText(c.getResources().getString(R.string.alreadyowned));
dialog.show();
}
public void test(String payload) {
// if device is not supported
if (!mHelper.subscriptionsSupported()) {
complain("Subscriptions not supported on your device yet. Sorry!");
return;
}
mHelper.launchPurchaseFlow(this, SKU_SPREADSHEET, 10001, mPurchaseFinishedListener, payload);
}
// 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) {
if (result.isFailure()) {
complain("An error has occurred. We apologize for the inconvenience. " + c.getResources().getString(R.string.failedtoquery) + " " + result);
return;
}
/*
* Check for items we own. Notice that for each purchase, we check
* the developer payload to see if it's correct! See
* verifyDeveloperPayload().
*/
Purchase spreadsheetPurchase = inventory.getPurchase(SKU_SPREADSHEET);
mIsPurchased = (spreadsheetPurchase != null && verifyDeveloperPayload(spreadsheetPurchase));
updateUi();
}
};
// replace your onActivityResult() with this one.
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
Log.d(TAG, "onActivityResult(" + requestCode + "," + resultCode + ","
+ data);
if (mHelper == null)
return;
// Pass on the activity result to the helper for handling
if (!mHelper.handleActivityResult(requestCode, resultCode, data)) {
// not handled, so handle it ourselves (here's where you'd
// perform any handling of activity results not related to in-app
// billing...
super.onActivityResult(requestCode, resultCode, data);
} else {
Log.d(TAG, "onActivityResult handled by IABUtil.");
}
}
/** Verifies the developer payload of a purchase. */
boolean verifyDeveloperPayload(Purchase p) {
String payload = p.getDeveloperPayload();
/*
* TODO: verify that the developer payload of the purchase is correct. It will be
* the same one that you sent when initiating the purchase.
*
* WARNING: Locally generating a random string when starting a purchase and
* verifying it here might seem like a good approach, but this will fail in the
* case where the user purchases an item on one device and then uses your app on
* a different device, because on the other device you will not have access to the
* random string you originally generated.
*
* So a good developer payload has these characteristics:
*
* 1. If two different users purchase an item, the payload is different between them,
* so that one user's purchase can't be replayed to another user.
*
* 2. The payload must be such that you can verify it even when the app wasn't the
* one who initiated the purchase flow (so that items purchased by the user on
* one device work on other devices owned by the user).
*
* Using your own server to store and verify developer payloads across app
* installations is recommended.
*/
return true;
}
// Callback for when a purchase is finished
IabHelper.OnIabPurchaseFinishedListener mPurchaseFinishedListener = new IabHelper.OnIabPurchaseFinishedListener() {
public void onIabPurchaseFinished(IabResult result, Purchase purchase) {
if(result.isFailure()) {
complain("An error has occurred. We apologize for the inconvenience. " + result);
return;
}
if(!verifyDeveloperPayload(purchase)) {
complain("An error has occurred. We apologize for the inconvenience. " + c.getResources().getString(R.string.error2));
return;
}
if(purchase.getSku().equals(SKU_SPREADSHEET)) {
// this appears to the user immediately after purchasing.
alert(c.getResources().getString(R.string.purchased));
Log.d(TAG, "Purchase is gas. Starting gas consumption.");
mHelper.consumeAsync(purchase, mConsumeFinishedListener);
mIsPurchased = true;
updateUi();
}
}
};
// Called when consumption is complete it is required for the console to verify transaction consume is completed.
IabHelper.OnConsumeFinishedListener mConsumeFinishedListener = new IabHelper.OnConsumeFinishedListener() {
public void onConsumeFinished(Purchase purchase, IabResult result) {
Log.d(TAG, "Consumption finished. Purchase: " + purchase
+ ", result: " + result);
// We know this is the "gas" sku because it's the only one we
// consume,
// so we don't check which sku was consumed. If you have more than
// one
// sku, you probably should check...
if (result.isSuccess()) {
// successfully consumed, so we apply the effects of the item in
// our
// game world's logic, which in our case means filling the gas
// tank a bit
Log.d(TAG, "Consumption successful. Provisioning.");
mTank = mTank == TANK_MAX ? TANK_MAX : mTank + 1;
// saveData();
alert("You filled 1/4 tank. Your tank is now "
+ String.valueOf(mTank) + "/4 full!");
} else {
complain("Error while consuming: " + result);
}
// updateUi();
// setWaitScreen(false);
Log.d(TAG, "End consumption flow.");
}
};
// updates UI to reflect model
public void updateUi() {
if(mIsPurchased == true) {
link.setClickable(true);
link.setMovementMethod(LinkMovementMethod.getInstance());
String a = "<a href='https://docs.google.com/spreadsheet/ccc?key=0At8avx-xtho6dHhkVzRUNkpJWFBNeGc4S3U1X0k0RFE&usp=sharing'>here</a>";
String b = c.getResources().getString(R.string.link1) + " ";
String e = " " + c.getResources().getString(R.string.link3);
String d = b + a + e;
link.setText(Html.fromHtml(d));
Intent intent = new Intent(BibleStudy.this, BibleStudy.class);
startActivity(intent);
}
}
void complain(String message) {
alert("Error: " + message);
}
void alert(String message) {
AlertDialog.Builder bld = new AlertDialog.Builder(this);
bld.setMessage(message);
bld.setNeutralButton("OK", null);
bld.create().show();
}
@Override
public void onDestroy() {
super.onDestroy();
if(mHelper != null) mHelper.dispose();
mHelper = null;
}
}
希望它会对你有所帮助。