我似乎对 Android 的应用内计费有问题
我遵循了这个指南Android Google Play In-App Billing这对设置很有帮助，但我不完全理解
我想知道的是
我可以通过用户单击某个按钮来启动服务吗？我如何启动服务，如果用户没有购买内容，我是否可以设置它，我可能会显示一个对话框并在用户使用时将其销毁有关于应用程序
任何建议或帮助将不胜感激
这是我的代码：
package com.IrishSign.app;
import java.util.HashSet;
import java.util.Locale;
import java.util.Set;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import com.IrishSign.app.BillingService.RequestPurchase;
import com.IrishSign.app.BillingService.RestoreTransactions;
import com.IrishSign.app.Consts.PurchaseState;
import com.IrishSign.app.Consts.ResponseCode;
public class IrishSignAppActivity extends Activity {
/**
* The SharedPreferences key for recording whether we initialized the
* database. If false, then we perform a RestoreTransactions request
* to get all the purchases for this user.
*/
private static final String DB_INITIALIZED = "db_initialized";
private AppPurchaseObserver appPurchaseObserver;
private Handler handler;
private BillingService billingService;
private PurchaseDatabase purchaseDatabase;
private Set<String> ownedItems = new HashSet<String>();
/**
* The developer payload that is sent with subsequent
* purchase requests.
*/
private String payloadContents = null;
/**
* Each product in the catalog is either MANAGED or UNMANAGED. MANAGED
* means that the product can be purchased only once per user (such as a new
* level in a game). The purchase is remembered by Android Market and
* can be restored if this application is uninstalled and then
* re-installed. UNMANAGED is used for products that can be used up and
* purchased multiple times (such as poker chips). It is up to the
* application to keep track of UNMANAGED products for the user.
*/
private enum Managed { MANAGED, UNMANAGED }
/**
* A {@link PurchaseObserver} is used to get callbacks when Android Market sends
* messages to this application so that we can update the UI.
*/
private class AppPurchaseObserver extends PurchaseObserver {
public AppPurchaseObserver(Handler handler) {
super(IrishSignAppActivity.this, handler);
}
public void onBillingSupported(boolean supported) {
if (Consts.DEBUG) {
Log.i(TAG, "supported: " + supported);
}
if (supported) {
restoreDatabase();
//ADD enabling methods or anything else you may need here...
}
//YOU can also put a dialog here
}
@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) {
ownedItems.add(itemId);
}
//YOU can also add other checks here
}
@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");
}
//Do something here if you want
} 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 = getSharedPreferences("idroprbilling",Context.MODE_PRIVATE);//NOTE: Change the idroprbilling to something else
SharedPreferences.Editor edit = prefs.edit();
edit.putBoolean(DB_INITIALIZED, true);
edit.commit();
} else {
if (Consts.DEBUG) {
Log.d(TAG, "RestoreTransactions error: " + responseCode);
}
}
}
@Override
public void onBillingSupported(boolean supported, String type) {
// TODO Auto-generated method stub
}
}
//NOTE: This may not even apply to your app - copied here but may never be used if only purchasing an UPGRADE or PREMIUM service
private static class CatalogEntry {
public String sku;
public int nameId;
public Managed managed;
public CatalogEntry(String sku, int nameId, Managed managed) {
this.sku = sku;
this.nameId = nameId;
this.managed = managed;
}
}
//NOTE: Same as above - An array of product list entries for the products that can be purchased.
private static final CatalogEntry[] CATALOG = new CatalogEntry[] {
new CatalogEntry("Upgrade", R.string.upgrade, Managed.MANAGED),
new CatalogEntry("android.test.purchased", R.string.android_test_purchased, Managed.UNMANAGED),
new CatalogEntry("android.test.canceled", R.string.android_test_canceled, Managed.UNMANAGED),
new CatalogEntry("android.test.refunded", R.string.android_test_refunded, Managed.UNMANAGED),
new CatalogEntry("android.test.item_unavailable", R.string.android_test_item_unavailable, Managed.UNMANAGED),
};
/**
* If the database has not been initialized, we send a
* RESTORE_TRANSACTIONS request to Android Market to get the list of purchased items
* for this user. This happens if the application has just been installed
* or the user wiped data. We do not want to do this on every startup, rather, we want to do
* only when the database needs to be initialized.
*/
private void restoreDatabase() {
SharedPreferences prefs = getSharedPreferences("idroprbilling",MODE_PRIVATE);
boolean initialized = prefs.getBoolean(DB_INITIALIZED, false);
if (!initialized) {
billingService.restoreTransactions();
Toast.makeText(this, R.string.restoring_transactions, Toast.LENGTH_LONG).show();
}
}
/**
* Replaces the language and/or country of the device into the given string.
* The pattern "%lang%" will be replaced by the device's language code and
* the pattern "%region%" will be replaced with the device's country code.
*
* @param str the string to replace the language/country within
* @return a string containing the local language and region codes
*/
//NOTE: This method is here for convenience only
private String replaceLanguageAndRegion(String str) {
// Substitute language and or region if present in string
if (str.contains("%lang%") || str.contains("%region%")) {
Locale locale = Locale.getDefault();
str = str.replace("%lang%", locale.getLanguage().toLowerCase());
str = str.replace("%region%", locale.getCountry().toLowerCase());
}
return str;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
//Now setup the in-app billing</pre>
handler = new Handler();
appPurchaseObserver = new AppPurchaseObserver(handler);
billingService = new BillingService();
billingService.setContext(this);
purchaseDatabase = new PurchaseDatabase(this);
ResponseHandler.register(appPurchaseObserver);
/**
* Creates a background thread that reads the database and initializes the
* set of owned items.
*/
//Check if billing is supported. (Optional)
boolean check = billingService.checkBillingSupported();
setContentView(R.layout.main);
Button Language = (Button) findViewById(R.id.language);
Button A = (Button) findViewById(R.id.alphabet);
Button purchaseableItem = (Button) findViewById(R.id.topics);
Button purchaseableItem2 = (Button) findViewById(R.id.intro);
Button G = (Button) findViewById(R.id.about);
G.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
AlertDialog alertDialog = new AlertDialog.Builder(
IrishSignAppActivity.this).setCancelable(false)
.create(); // Reads Update
alertDialog.setTitle("Welcome ");
alertDialog.setMessage("this is my first dialog box :)");// Change tommorow//
alertDialog.setButton("Continue..",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int arg1) {
Intent our3intent = new Intent(
"com.IrishSign.app.MAIN"); // Change to
// revert
// back to
// menu
startActivity(our3intent);
}
});
alertDialog.show(); // <-- Shows dialog on screen.
}
});
purchaseableItem2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent our3intent = new Intent("com.IrishSign.app.Intro");
startActivity(our3intent);
}
});
purchaseableItem.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
//Now setup the in-app billing</pre>
boolean val = billingService.requestPurchase("com.irishsign.app.topicvideos", payloadContents, null);
}
});
A.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent ourintent = new Intent("com.IrishSign.app.alpha");
startActivity(ourintent);
}
});
Language.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent language = new Intent("com.IrishSign.app.Language");
startActivity(language);
}
});
}
}