Google Play應用商店在國外Android市場中地位基本與AppStore在IOS中的地位一致，為此考慮國外的應用時，Android首要考慮的是接入GooglePlay的排行榜等支持。
同樣的由於Google未進入大陸市場，在大陸還是需要VPN才可以訪問這些服務。
官方文檔: https://developers.google.com/games/services/android/quickstart
1、設置 AndroidManifest.xml中的標簽項。
<meta-data android:name="com.google.android.gms.games.APP_ID" android:value="@string/app_id" /> <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version"/>
2、在res\values\string.xml中添加應用的app_id。
<?xml version="1.0" encoding="utf-8"?> <resources> <string name="app_name">XXX_NAME</string> <string name="app_id">10XXXXXXXXXX</string> </resources>
app_id 需要在google play 開發控制台添加對應的應用獲取，網址：https://play.google.com/apps/publish
在游戲服務中添加新游戲，點進游戲項即可在游戲名下看到app_id,如下圖:
3、登錄並設置監聽回調。直接new 新的監聽添加到 mGoogleApiClient 上。
mGoogleApiClient = new GoogleApiClient.Builder(activity) .addConnectionCallbacks(new GoogleApiClient.ConnectionCallbacks() { @Override public void onConnected(Bundle bundle) { OnConnected(); } @Override public void onConnectionSuspended(int i) { Log.i(TAG, "onConnectionSuspended"); } }) .addOnConnectionFailedListener(new GoogleApiClient.OnConnectionFailedListener() { @Override public void onConnectionFailed(com.google.android.gms.common.ConnectionResult connectionResult) { Log.i(TAG, "onConnectionFailed getErrorCode:" + connectionResult.getErrorCode()); if (connectionResult.hasResolution()) { try { // !!! connectionResult.startResolutionForResult(_gameActivity, RC_SIGN_IN); } catch (SendIntentException e) { mGoogleApiClient.connect(); } } } }) .addApi(Plus.API).addScope(Plus.SCOPE_PLUS_LOGIN) .addApi(Games.API).addScope(Games.SCOPE_GAMES) .build();
大致是，登錄時會先判斷應用是否已有帳號登錄，有的話回調登錄成功onConnected，否則會轉到 onConnectionFailed，此時會返回一個connectionResult可以用來新建一個登錄窗口。
4、直接登錄測試。
// 登錄 public static void login() { Log.i(TAG, "login"); if (mGoogleApiClient.isConnected()) { OnConnected(); } else { mGoogleApiClient.connect(); } }
測試登錄注意事項:
1、將測試帳號在https://play.google.com/apps/publish 加入到應用的測試帳號里。
2、如果手機Google Play已經登錄帳號沒退出，且該帳號不是測試帳號，會出現登錄界面閃下消失。
為了做帳號區分需要獲取帳號信息，需要添加AndroidManifest.xml標簽項。
<!-- To access accounts configured on device --> <uses-permission android:name="android.permission.GET_ACCOUNTS" />
然后用 如下代碼獲取名字:
mAccountName = Plus.AccountApi.getAccountName(mGoogleApiClient);
官網地址: https://developers.google.com/games/services/android/leaderboards
1、首先接入上述的登錄。
2、在Google Play應用開發后台中的應用添加新的排行榜，得到排行榜ID LEADERBOARD_ID 如下圖:
3、顯示排行榜,代碼如下:
private static final String LEADERBOARD_ID = "XXXXXXXXXX"; private static final int REQUEST_LEADERBOARD =100; // 顯示排行榜 public static void showLeaderboards() { Log.i(TAG, "showLeaderboards"); if (mGoogleApiClient.isConnected()) { _gameActivity.startActivityForResult(Games.Leaderboards.getLeaderboardIntent(mGoogleApiClient,LEADERBOARD_ID),REQUEST_LEADERBOARD); } else { mGoogleApiClient.connect(); } }
4、提交分數
// 排行榜 提交 public static void commit(long score) { if (!mGoogleApiClient.isConnected()) { mGoogleApiClient.connect(); return; } Log.i(TAG, "commit " + score); Games.Leaderboards.submitScore(mGoogleApiClient,LEADERBOARD_ID,score); }
5、登錄后獲取原來的排行榜數據
public static void OnConnected() { mAccountName = Plus.AccountApi.getAccountName(mGoogleApiClient); Log.i(TAG, "onConnected "+ mAccountName); Games.Leaderboards.loadCurrentPlayerLeaderboardScore(mGoogleApiClient,LEADERBOARD_ID, LeaderboardVariant.TIME_SPAN_ALL_TIME, LeaderboardVariant.COLLECTION_PUBLIC) .setResultCallback(new ResultCallback<LoadPlayerScoreResult>() { @Override public void onResult(LoadPlayerScoreResult arg0) { LeaderboardScore c = arg0.getScore(); if(c!=null) { Log.i(TAG, "onResult " + c.getDisplayScore() + " rawScore:" + c.getRawScore()); mAccountScore = c.getRawScore(); } loginCallback(); } }); }
官網地址: http://developer.android.com/training/in-app-billing/preparing-iab-app.html
1、從SDK Manager中下載安裝對應Google 服務，如下:
2、從對應的sdk路徑下 ~sdk\extras\google\play_billing 拷貝 IInAppBillingService.aidl 到 游戲目錄下 ~proj.android\src\com\android\vending\billing
3、將sample\TrivialDrive\src\com\example\android\trivialdrivesample\util 整個目錄拷貝到游戲目錄下並修改目錄下文件的響應引用庫路徑。
4、在AndroidManifest.xml添加對應的權限，注意大小寫。
<uses-permission android:name="com.android.vending.BILLING" />
5、在Google Play 商店添加商品信息。
a、生成一個添加好上述第4點的權限的帶有簽名的release包，可參考cocos2dx - android環境配置及編譯。
b、將生成的包上傳到Google Play商店對應應用的Apk項。並將其關聯到游戲服務中。(這里是為了后面測試支付等上傳信息驗證)
c、在所以應用 ->應用內商品 -> 添加新商品，然后將添加的商品激活，此時同時得到一個商品Id(xxxxxxxxx)。如下圖:
6、幾個重要函數,可參考sample\TrivialDrive\src\com\example\android\trivialdrivesample\MainActivity.java文件。
初始化設置Inpay_publickey可以在Google Play后台應用服務及API選項找到,調試log顯示,添加消耗監聽 OnConsumeFinishedListener,並進行 startSetup。只有在 startSetup成功回調后才可以進行下一步的購買。
/// google pay
// compute your public key and store it in base64EncodedPublicKey
mHelper = new IabHelper(_gameActivity, Inpay_publickey);
// enable debug logging (for a production application, you should set this to false).
mHelper.enableDebugLogging(true);
// Called when consumption is complete
mConsumeFinishedListener = new IabHelper.OnConsumeFinishedListener() {
@Override
public void onConsumeFinished(Purchase purchase, IabResult result) {
Log.d(TAG, "Consumption finished. Purchase: " + purchase + ", result: " + result);
// if we were disposed of in the meantime, quit.
if (mHelper == null) return;
// 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." + purchase);
// String[] parts = purchase.getSku().split("_");
// String part3 =parts[2];
// buyCallback(Integer.parseInt(part3));
}
else {
Log.e(TAG,"Error while consuming: " + result);
}
}
};
mHelper.startSetup(new IabHelper.OnIabSetupFinishedListener() {
public void onIabSetupFinished(IabResult result) {
Log.i(TAG, "onIabSetupFinished " );
if (!result.isSuccess()) {
// Oh noes, there was a problem.
Log.d(TAG, "Problem setting up In-app Billing: " + result);
}
}
});
調用購買並設置回調,設置變量僅能同時存在一個購買界面否則會崩潰，因為是Manager類型一次消耗道具所以在購買成功后直接進行consumeAsync使用消耗品。
//購買
public static void buy(int idx)
{
if(isInBuyed)
{
return;
}
if (!mGoogleApiClient.isConnected())
{
mGoogleApiClient.connect();
return;
}
/* 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 = "XXXXXXXXXXXII";//createDeveloperPayload();
mHelper.launchPurchaseFlow(_gameActivity, SKU_GAS+idx, RC_REQUEST,
new IabHelper.OnIabPurchaseFinishedListener() {
@Override
public void onIabPurchaseFinished(IabResult result, Purchase purchase) {
Log.d(TAG, "Purchase finished: " + result + ", purchase: " + purchase);
isInBuyed =false;
// if we were disposed of in the meantime, quit.
if (mHelper == null) return;
if (result.isFailure()) {
Log.e(TAG,"Error purchasing: " + result);
return;
}
// if (!verifyDeveloperPayload(purchase)) {
// Log.e(TAG,"Error purchasing. Authenticity verification failed.");
// return;
// }
Log.d(TAG, "Purchase successful." + purchase.getSku());
mHelper.consumeAsync(purchase, mConsumeFinishedListener);
}
}, payload);
isInBuyed = true;
}
這里必須對購買失敗進行處理，否則重新點擊購買也會導致崩潰。如下:
@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { Log.d(TAG, "onActivityResult(" + requestCode + "," + resultCode + "," + data); if (JaveJniHelper.mHelper == null) return; // Pass on the activity result to the helper for handling if (!JaveJniHelper.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); } }
至此，一個正常的購買流程已經可以正常完成了。
這里在提幾個碰到問題及修復方案：
1、點擊購買出現 需要驗證身份 您需要登錄自己的google賬戶。
解決: 在Google Play商店中提交release簽名一致，版本號一致的包，並進行alpha/beta發布。(發布后需要一段時間等Google Play后台顯示的更新完成)
2、提示 無法購買您要買的商品。
解決: 在beta測試中選擇需要的測試方法並提交，選擇后一定要點擊右上角的 提交更新 按鈕,稍等片刻刷新后確定可以看到已選中了。(封閉式測試帳號需要將測試測好加入測試列表)