我已在我的活动
中实施了应用内结算这是我的onIabPurchaseFinished()方法：
@Override
public void onIabPurchaseFinished(IabResult result, Purchase info) {
if (!verifyDeveloperPayload(info)) {
Toast.makeText(this, R.string.error_purchasing, Toast.LENGTH_LONG).show();
}
Toast.makeText(this, R.string.premium_bought, Toast.LENGTH_LONG).show();
if (info.getSku().equals("chords_premium")) {
/** salva isPremium tra SharedPreferences */
SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
SharedPreferences.Editor editor = sharedPref.edit();
editor.putString("status", "purchased");
editor.apply();
}
}
正如您所看到的，我将字符串"status"保存到SharedPreferences，以便我可以从任何地方访问它，并在应用关闭后保存它。
然后在我实施广告的其他活动中，我写道：
final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
final String status = prefs.getString("status", "free");
/** gestisce le pubblicita */
if (status.equals("free")) {
MobileAds.initialize(getApplicationContext(), "ca-app-pub-6723047396589178/2654753246");
AdView listBanner = (AdView) findViewById(R.id.chords_list_banner);
AdRequest adRequest = new AdRequest.Builder().build();
listBanner.loadAd(adRequest);
/** carica Ad a tutto schermo */
chordsListAd = new InterstitialAd(this);
chordsListAd.setAdUnitId("ca-app-pub-6723047396589178/7447672046");
requestNewInterstitial();
chordsListAd.setAdListener(new AdListener() {
@Override
public void onAdClosed() {
requestNewInterstitial();
}
});
}
正如您在此处所见，广告被if statement包围，检查"status"字符串是否设置为空闲。
问题是，当我购买Premium时，广告仍会显示。我该如何解决？
答案 0 :(得分：1)
检查是否进行了inapp购买：
//*************************************checking in app purchase has been made********************************//
void testInApp()
{
if (!blnBind) return;
if (mService == null) return;
int result;
try {
result = mService.isBillingSupported(3, getPackageName(), "inapp");
//Toast.makeText(context, "isBillingSupported() - success : return " + String.valueOf(result), Toast.LENGTH_SHORT).show();
Log.i(tag, "isBillingSupported() - success : return " + String.valueOf(result));
} catch (RemoteException e) {
e.printStackTrace();
//Toast.makeText(context, "isBillingSupported() - fail!", Toast.LENGTH_SHORT).show();
Log.w(tag, "isBillingSupported() - fail!");
return;
}
}
void checkInApp()
{
if (!blnBind) return;
if (mService == null) return;
Bundle ownedItems;
try {
ownedItems = mService.getPurchases(3, getPackageName(), "inapp", null);
//Toast.makeText(context, "getPurchases() - success return Bundle", Toast.LENGTH_SHORT).show();
Log.i(tag, "getPurchases() - success return Bundle");
} catch (RemoteException e) {
e.printStackTrace();
//Toast.makeText(context, "getPurchases - fail!", Toast.LENGTH_SHORT).show();
Log.w(tag, "getPurchases() - fail!");
return;
}
int response = ownedItems.getInt("RESPONSE_CODE");
//Toast.makeText(context, "getPurchases() - \"RESPONSE_CODE\" return " + String.valueOf(response), Toast.LENGTH_SHORT).show();
Log.i(tag, "getPurchases() - \"RESPONSE_CODE\" return " + String.valueOf(response));
if (response != 0) return;
ArrayList<String> ownedSkus = ownedItems.getStringArrayList("INAPP_PURCHASE_ITEM_LIST");
ArrayList<String> purchaseDataList = ownedItems.getStringArrayList("INAPP_PURCHASE_DATA_LIST");
ArrayList<String> signatureList = ownedItems.getStringArrayList("INAPP_DATA_SIGNATURE");
String continuationToken = ownedItems.getString("INAPP_CONTINUATION_TOKEN");
Log.i(tag, "getPurchases() - \"INAPP_PURCHASE_ITEM_LIST\" return " + ownedSkus.toString());
Log.i(tag, "getPurchases() - \"INAPP_PURCHASE_DATA_LIST\" return " + purchaseDataList.toString());
Log.i(tag, "getPurchases() - \"INAPP_DATA_SIGNATURE\" return " + (signatureList != null ? signatureList.toString() : "null"));
Log.i(tag, "getPurchases() - \"INAPP_CONTINUATION_TOKEN\" return " + (continuationToken != null ? continuationToken : "null"));
// TODO: management owned purchase
try {
if(purchaseDataList.size()>0){
jinapp=new JSONArray(purchaseDataList.toString());
JSONObject c = jinapp.getJSONObject(0);
String productid=c.getString("productId");
if(productid!=null){
SharedPreferences.Editor editor = prefpurchase.edit();
editor.putBoolean(Constants.APP_IS_PURCHASED,true);
editor.commit();
}
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// TODO: management owned purchase
}
在SplashScreen中编写代码
现在，在您展示广告的活动/片段中，请输入以下代码：
//*******************to check purchase has been made.If yes disable ads and no then show ads******************//
prefpurchase = this.getSharedPreferences(Constants.GET_IN_APP_STATE, Context.MODE_PRIVATE);
//Toast.makeText(context, "bindService - return " + String.valueOf(blnBind), Toast.LENGTH_SHORT).show();
//In App Purchase
ispurchased=prefpurchase.getBoolean(Constants.APP_IS_PURCHASED,false);
System.out.println("ispurchased-->"+ispurchased);
if(ispurchased)
{
setContentView(R.layout.activity_home_noads);
}else{
System.out.println("Getting ad");
setContentView(R.layout.activity_home);
//Locate the Banner Ad in activity_main.xml
AdView adView = (AdView) this.findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder()
// Add a test device to show Test Ads
//.addTestDevice(AdRequest.DEVICE_ID_EMULATOR)
//.addTestDevice("B2D63***************************")
.build();
// Load ads into Banner Ads
adView.loadAd(adRequest);
}
//*******************************************************************************************************//
逻辑很简单，您正在创建两个版本的布局，一个是广告而另一个没有广告。
根据共享偏好的值加载正确的布局。
<强> MSERVICE：
在onCreate（）之前在splashscreen中全局编写此代码：
private IInAppBillingService mService;
private 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);
}
};
<强> blnBind
全局声明blnBind：
boolean blnBind;
在SplashActivity的onCreate（）中写道：
// Bind Service
blnBind = bindService(new Intent(
"com.android.vending.billing.InAppBillingService.BIND"),
mServiceConn, Context.BIND_AUTO_CREATE);
//Toast.makeText(context, "bindService - return " + String.valueOf(blnBind), Toast.LENGTH_SHORT).show();
Log.i(tag, "bindService - return " + String.valueOf(blnBind));
//In App Purchase
为共享首选项创建GET_IN_APP_STATE或APP_IS_PURCHASED，它们充当首选项值的键。
//Preferences to check in app purchase
final static public String GET_IN_APP_STATE = "prefinapp";
public static final String APP_IS_PURCHASED ="AppIsPurchased";
每次购买时，请不要忘记将共享偏好设置为true。
答案 1 :(得分：1)
这是因为您要将数据保存在基本上下文中，并尝试使用（此）在当前的活动上下文中找到它。
final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
到
final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
此外，查询应用内购买商品的更多推荐方法是查询应用内商品库存，而不是存储在sharedprefs中。
如Google文档中所述
查询已购买的商品
成功购买后，Google Play的应用内结算服务会在本地缓存用户的购买数据。最好经常查询应用内结算服务以查看用户的购买情况，例如应用启动或恢复时，以便用户当前的应用内商品所有权信息始终反映在您的应用中。
要从您的应用中检索用户的购买，请在IabHelper实例上调用queryInventoryAsync（QueryInventoryFinishedListener）。 QueryInventoryFinishedListener参数指定在查询操作完成时通知并处理查询响应的侦听器。将此调用作为主线程是安全的。
mHelper.queryInventoryAsync(mGotInventoryListener); //mHelper is IabHelper instance
如果查询成功，查询结果将存储在传递回侦听器的Inventory对象中。应用内结算服务仅返回当前登录到设备的用户帐户所做的购买。
IabHelper.QueryInventoryFinishedListener mGotInventoryListener
= new IabHelper.QueryInventoryFinishedListener() {
public void onQueryInventoryFinished(IabResult result,
Inventory inventory) {
if (result.isFailure()) {
// handle error here
}
else {
// does the user have the premium upgrade?
mIsPremium = inventory.hasPurchase(SKU_PREMIUM);
// update UI accordingly
}
}
};