in-app-billing for google play （google應用內付費 v3）
阿新 • • 發佈：2019-02-03
詳細文件參考： https://developer.android.com/google/play/billing/billing_integrate.html#billing-add-aidl
Google的In-app Billing, V3版本的介面是google釋出的最新充值介面，支援以服務的形式非同步的與Google Play進行互動，更加安全可靠，減少交易中的不確定因素造成的損失。 但是暫時只支援 In-app Products，不支援訂閱。基本步驟如下：
將 IInAppBillingService.aidl檔案拷貝到src資料夾下，正常的話會在gen目錄下生成對應的.java檔案
在AndroidManifest.xml 檔案中新增如下許可權
<uses-permission android:name="com.android.vending.BILLING" />
建立一個 ServiceConnection 並將其與 IInAppBillingService繫結。這個是最核心的功能，用於與Google Play進行通訊。詳細程式碼參考IabHelper.java 核心程式碼如下：
IInAppBillingService mService; ServiceConnection mServiceConn = new ServiceConnection() { @Override public void onServiceDisconnected(ComponentName name) { mService = null; } @Override public void onServiceConnected(ComponentName name, IBinder service) { mService = IInAppBillingService.Stub.asInterface(service); } }; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); bindService(new Intent("com.android.vending.billing.InAppBillingService.BIND"), mServiceConn, Context.BIND_AUTO_CREATE); @Override public void onDestroy() { super.onDestroy(); if (mServiceConn != null) { unbindService(mServiceConn); } }
一旦成功與Google Play建立連線，就可以使用上面建立的service與其進行通訊。比如獲取商品資訊，釋出購買請求等等。獲取商品資訊的程式碼示例(注意，不要在主執行緒呼叫此程式碼，涉及網路請求可能會阻塞主執行緒，應該另開一個執行緒呼叫)：
ArrayList skuList = new ArrayList(); skuList.add("premiumUpgrade"); skuList.add("gas"); Bundle querySkus = new Bundle(); querySkus.putStringArrayList(“ITEM_ID_LIST”, skuList); Bundle skuDetails = mService.getSkuDetails(3, getPackageName(), "inapp", querySkus); int response = skuDetails.getInt("RESPONSE_CODE"); if (response == 0) { ArrayList responseList = skuDetails.getStringArrayList("DETAILS_LIST"); for (String thisResponse : responseList) { JSONObject object = new JSONObject(thisResponse); String sku = object.getString("productId"); String price = object.getString("price"); if (sku.equals("premiumUpgrade")) mPremiumUpgradePrice = price; else if (sku.equals("gas")) mGasPrice = price; } }
申請購買商品：
// 購買程式碼
Bundle buyIntentBundle = mService.getBuyIntent(3, getPackageName(),
sku, "inapp", "bGoa+V7g/yqDXvKRqq+JTFn4uQZbPiQJo4pf9RzJ");
PendingIntent pendingIntent = buyIntentBundle.getParcelable("BUY_INTENT");
startIntentSenderForResult(pendingIntent.getIntentSender(),
1001, new Intent(), Integer.valueOf(0), Integer.valueOf(0),
Integer.valueOf(0));
// 結果返回
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");
alert("You have bought the " + sku + ". Excellent choice,
adventurer!");
}
catch (JSONException e) {
alert("Failed to parse purchase data.");
e.printStackTrace();
}
}
}
}
// 返回結果示例
'{
"orderId":"12999763169054705758.1371079406387615",
"packageName":"com.example.app",
"productId":"exampleSku",
"purchaseTime":1345678900000,
"purchaseState":0,
"developerPayload":"bGoa+V7g/yqDXvKRqq+JTFn4uQZbPiQJo4pf9RzJ",
"purchaseToken":"rojeslcdyyiapnqcynkjyyjh"
}'設定物品已消耗（預設情況下，物品一旦被購買就屬於使用者，不允許再次被購買，如果是消耗型商品，比如貨幣或者裝備，就需要向Google Play傳送資訊通知該物品已被消耗。注意，這個步驟要在真正提供商品之前進行，之後正確的獲取到返回值才提供商品給玩家。）
int response = mService.consumePurchase(3, getPackageName(), token);
Handle In-app Billing responses from Google Play.
除錯不成功報錯：Error checking for billing v3 support. (response: 3:Billing Unavailable)