<uses-permissionandroid:name="com.android.vending.BILLING"/>

String base64EncodedPublicKey ="";此处填写Google控制台添加新应用程序后的appid
      mHelper =new IabHelper(this, base64EncodedPublicKey);
       // enable debuglogging (for a production application, you should set this tofalse).
      mHelper.enableDebugLogging(false);
    // Start setup. This is asynchronous andthe specified listener
       // will be called oncesetup completes.
       Log.d(TAG,"Starting setup.");
      mHelper.startSetup(new IabHelper.OnIabSetupFinishedListener(){
          publicvoid onIabSetupFinished(IabResult result){
              Log.d(TAG,"Setupfinished.");
             if (!result.isSuccess()) {
                 // Ohnoes, there was a problem.
                 complain("Problemsetting up in-app billing: " + result);
                return;
              }
             iap_is_ok = true;
              //Hooray, IAB is fully set up. Now, let‘s get an inventory of stuffwe own.
             Log.d(TAG, "Setup successful. Queryinginventory.");
           }
       });

  调用支付接口：

if(iap_is_ok){
mHelper.launchPurchaseFlow(MainActivity.this,skus[1],RC_REQUEST, mPurchaseFinishedListener);
}else {
showMessage("提示", "GooglePlay初始化失败,当前无法进行支付，请确定您所在地区支持Google Play支付或重启游戏再试！");
}

  调用查询接口：

mHelper.queryInventoryAsync(mGotInventoryListener);

  调用获取道具价格接口：（因Google市场是根据不同国家显示不同货币价格，所以显示到游戏道具列表中的价格不是定值，而是动态获取的）

billingservice =mHelper.getService();
Bundle querySkus = newBundle();
   querySkus.putStringArrayList("ITEM_ID_LIST", skus);
try {
Bundle skuDetails = billingservice.getSkuDetails(3,MainActivity.this.getPackageName(),"inapp", querySkus);
ArrayList<String> responseList =skuDetails.getStringArrayList("DETAILS_LIST");
if (null!=responseList) {
for (String thisResponse :responseList) {
          try {
SkuDetails d = newSkuDetails(thisResponse);
 
for (int i = 0; i <sku_list.size(); i++) {
if(sku_list.get(i).equals(d.getSku())) {
price_list.set(i, d.getPrice());
}
}
iapHandler.sendEmptyMessage(0);
 
}catch (JSONException e) {
// TODO Auto-generated catchblock
e.printStackTrace();
}
          
       }
}
}catch (RemoteException e) {
// TODO Auto-generated catchblock
e.printStackTrace();
}

  三个回调：

// Callback for when a purchase is finished
IabHelper.OnIabPurchaseFinishedListener mPurchaseFinishedListener =newIabHelper.OnIabPurchaseFinishedListener() {
      publicvoidonIabPurchaseFinished(IabResult result, Purchase purchase) {
           Log.d(TAG,"Purchase finished: " + result+", purchase: " +purchase);
          if (result.isFailure()) {
             // Oh noes!
              complain("Error purchasing: " + result);
             return;
           }

           Log.d(TAG,"Purchase successful.");
          if(purchase.getSku().equals("coins_100")||purchase.getSku().equals("android.test.purchased")){
          mHelper.consumeAsync(purchase, mConsumeFinishedListener);
}elseif (purchase.getSku().equals("double_income")) {
//受管理的商品,开启双倍经验
showMessage("支付成功","成功购买双倍经验");
}
       }
    };
// Called when consumption is complete
IabHelper.OnConsumeFinishedListener mConsumeFinishedListener =newIabHelper.OnConsumeFinishedListener() {
      publicvoid onConsumeFinished(Purchasepurchase, IabResult result) {
          Log.d(TAG,"Consumption finished. Purchase: "+purchase + ", result: " +result);

          // We know this is the "gas"sku because it‘s the only onewe consume,
          // so we don‘t check whichsku was consumed. If you havemore than one
          //sku, you probably shouldcheck...
          if (result.isSuccess()) {
              //successfully consumed, so we apply the effects of the item inour
              //game world‘s logic, which in our case means filling the gas tank abit
          if(purchase.getSku().equals("coins_100")||purchase.getSku().equals("android.test.purchased")){
          showMessage("支付成功","成功购买100猫币");
    }
           }
          else {
              complain("Error while consuming: " + result);
           }
       }
    };
    
// Listener that‘s called when we finish querying the items weown
IabHelper.QueryInventoryFinishedListener mGotInventoryListener =newIabHelper.QueryInventoryFinishedListener() {
      publicvoidonQueryInventoryFinished(IabResult result, Inventory inventory){
          Log.d(TAG,"Query inventory finished.");
          if (result.isFailure()) {
              complain("Failed to query inventory: " +result);
             return;
           }

          Log.d(TAG,"Query inventory was successful.");

          if(inventory.hasPurchase("double_income")) {
         //查询到有受管理的商品支付成功需要将道具给用户
showMessage("成功Restore双倍金币", "查询到有双倍金币需要恢复");
}elseif(inventory.hasPurchase("cions_100")){
//查询到不受管理的商品支付成功需要将道具消耗掉
showMessage("成功Restore100金币","查询到有100金币需要恢复");
}
       }
    };

  处理返回Activity后的数据：

@Override
protectedvoid onActivityResult(int requestCode,int resultCode, Intent data) {
// TODO Auto-generated methodstub
Log.d(TAG, "onActivityResult("+ requestCode + "," +resultCode +"," + data);

       // Pass on theactivity 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 activityresults not related to in-app
          // billing...
          super.onActivityResult(requestCode,resultCode, data);
       }
      else {
          Log.d(TAG,"onActivityResult handled by IABUtil.");
       }
}

  退出游戏后销毁IabHelper：

@Override
protectedvoid onDestroy() {
// TODO Auto-generated methodstub
super.onDestroy();
if (mHelper !=null) mHelper.dispose();
      mHelper =null;
}

  最后附上MainActivity.java完整文件，源码下载地址：http://pan.baidu.com/share/link?shareid=1579953623&uk=473193131：

packagecn.catcap.together;

importjava.util.ArrayList;
importorg.json.JSONException;
importcom.android.vending.billing.IInAppBillingService;
importcom.example.android.trivialdrivesample.util.IabHelper;
importcom.example.android.trivialdrivesample.util.IabResult;
importcom.example.android.trivialdrivesample.util.Inventory;
importcom.example.android.trivialdrivesample.util.Purchase;
importcom.example.android.trivialdrivesample.util.SkuDetails;
importandroid.os.Bundle;
importandroid.os.Handler;
importandroid.os.RemoteException;
importandroid.app.Activity;
importandroid.app.AlertDialog;
importandroid.content.Intent;
importandroid.util.Log;
importandroid.view.View;
importandroid.widget.TextView;

public class MainActivityextends Activity {
 
// The helper object
   IabHelper mHelper;
 // Debugtag, for logging
   static final String TAG = "TrivialDrive";
 //Current amount of gas in tank, in units
   int mTank;
 //(arbitrary) request code for the purchase flow请求码
   static final int RC_REQUEST = 10001;
   private boolean iap_is_ok = false;
   //double_income为受管理商品,coins_100为不受管理商品
   private String[] skus ={"android.test.purchased","double_income","coins_100"};
   
   privateArrayList<String> sku_list;
   privateArrayList<String> price_list;
   
   private IInAppBillingService billingservice;
   private TextView tv;
   

@Override
protected voidonCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Stringbase64EncodedPublicKey = "";//此处填写自己的appid
       mHelper =new IabHelper(this, base64EncodedPublicKey);
       // enabledebug logging (for a production application, you should set this tofalse).
      mHelper.enableDebugLogging(false);
    // Start setup. This isasynchronous and the specified listener
       // will becalled once setup completes.
       Log.d(TAG,"Starting setup.");
      mHelper.startSetup(new IabHelper.OnIabSetupFinishedListener() {
          public voidonIabSetupFinished(IabResult result) {
             Log.d(TAG, "Setup finished.");
             if (!result.isSuccess()) {
                 // Ohnoes, there was a problem.
                complain("Problem setting up in-app billing: " + result);
                return;
             }
             iap_is_ok = true;
             // Hooray, IAB is fully set up. Now, let‘s getan inventory of stuff we own.
             Log.d(TAG, "Setup successful. Queryinginventory.");
          }
       });
      //购买双倍金币（受管理商品）
      findViewById(R.id.button1).setOnClickListener(newView.OnClickListener() {
 
@Override
public void onClick(Viewv) {
// TODO Auto-generatedmethod stub
iapHandler.sendEmptyMessage(1);
}
});
      //购买100猫币（不受管理商品）
      findViewById(R.id.button2).setOnClickListener(newView.OnClickListener() {
 
@Override
public void onClick(Viewv) {
// TODO Auto-generatedmethod stub
iapHandler.sendEmptyMessage(2);
}
});
       //RestoreOrder
      findViewById(R.id.button3).setOnClickListener(newView.OnClickListener() {
 
@Override
public void onClick(Viewv) {
// TODO Auto-generatedmethod stub
if (iap_is_ok) {
mHelper.queryInventoryAsync(mGotInventoryListener);
}else {
showMessage("提示", "GooglePlay初始化失败,当前无法进行支付，请确定您所在地区支持Google Play支付或重启游戏再试！");
}
 
}
});
       //获取价格
      findViewById(R.id.button4).setOnClickListener(newView.OnClickListener() {
 
@Override
public void onClick(Viewv) {
// TODO Auto-generatedmethod stub
sku_list = newArrayList<String>();
price_list = newArrayList<String>();
//添加默认值
sku_list.add("double_income");
price_list.add("HK$40");
sku_list.add("coins_100");
price_list.add("HK$8");
new Thread(new Runnable(){
 
@Override
public void run() {
// TODO Auto-generatedmethod stub
getPrice();
}
}).start();
}
});
       //测试订单
      findViewById(R.id.button5).setOnClickListener(newView.OnClickListener() {
 
@Override
public void onClick(Viewv) {
// TODO Auto-generatedmethod stub
iapHandler.sendEmptyMessage(3);
}
});
       //显示价格
       tv =(TextView) findViewById(R.id.text);
}
//获取价格
private voidgetPrice(){
ArrayList<String> skus = newArrayList<String>();
skus.add("double_income");
skus.add("coins_100");
billingservice =mHelper.getService();
Bundle querySkus = newBundle();
  querySkus.putStringArrayList("ITEM_ID_LIST",skus);
try {
Bundle skuDetails =billingservice.getSkuDetails(3,MainActivity.this.getPackageName(),"inapp", querySkus);
ArrayList<String> responseList =skuDetails.getStringArrayList("DETAILS_LIST");
if (null!=responseList){
for (String thisResponse :responseList) {
         try {
SkuDetails d = newSkuDetails(thisResponse);
 
for (int i = 0; i< sku_list.size(); i++) {
if(sku_list.get(i).equals(d.getSku())) {
price_list.set(i,d.getPrice());
}
}
iapHandler.sendEmptyMessage(0);
 
} catch (JSONException e){
// TODO Auto-generatedcatch block
e.printStackTrace();
}
         
      }
}
} catch (RemoteExceptione) {
// TODO Auto-generatedcatch block
e.printStackTrace();
}
}
 
Handler iapHandler = newHandler(){
public voidhandleMessage(android.os.Message msg) {
switch(msg.what){
case 0:
tv.setText(price_list.get(0)+"\n"+price_list.get(1));
break;
case 1:
if (iap_is_ok) {
mHelper.launchPurchaseFlow(MainActivity.this, skus[1], RC_REQUEST,        mPurchaseFinishedListener);
}else {
showMessage("提示", "GooglePlay初始化失败,当前无法进行支付，请确定您所在地区支持Google Play支付或重启游戏再试！");
}
break;
case 2:
if (iap_is_ok) {
mHelper.launchPurchaseFlow(MainActivity.this, skus[2], RC_REQUEST,mPurchaseFinishedListener);
}else {
showMessage("提示", "GooglePlay初始化失败,当前无法进行支付，请确定您所在地区支持Google Play支付或重启游戏再试！");
}
break;
case 3:
if (iap_is_ok) {
mHelper.launchPurchaseFlow(MainActivity.this, skus[0], RC_REQUEST,mPurchaseFinishedListener);
}else {
showMessage("提示", "GooglePlay初始化失败,当前无法进行支付，请确定您所在地区支持Google Play支付或重启游戏再试！");
}
 
break;
default:
break;
}
};
};
 
// Callback for when apurchase is finished
   IabHelper.OnIabPurchaseFinishedListenermPurchaseFinishedListener = newIabHelper.OnIabPurchaseFinishedListener() {
       publicvoid onIabPurchaseFinished(IabResult result, Purchase purchase){
          Log.d(TAG, "Purchasefinished: " + result + ", purchase: " + purchase);
          if (result.isFailure()) {
             // Oh noes!
             complain("Error purchasing: " + result);
             return;
          }

          Log.d(TAG, "Purchasesuccessful.");
          if(purchase.getSku().equals("coins_100")||purchase.getSku().equals("android.test.purchased")){
         mHelper.consumeAsync(purchase, mConsumeFinishedListener);
}else if(purchase.getSku().equals("double_income")) {
//受管理的商品,开启双倍经验
showMessage("支付成功","成功购买双倍经验");
}
       }
   };
   // Called when consumption is complete
   IabHelper.OnConsumeFinishedListenermConsumeFinishedListener = newIabHelper.OnConsumeFinishedListener() {
       publicvoid onConsumeFinished(Purchase purchase, IabResult result) {
          Log.d(TAG, "Consumptionfinished. Purchase: " + purchase + ", result: " + result);

          // We know this is the "gas"sku because it‘s the only one we consume,
          // so we don‘t check whichsku was consumed. If you have more than one
          // sku, you probably shouldcheck...
          if (result.isSuccess()) {
             // successfully consumed, so we apply theeffects of the item in our
             // game world‘s logic, which in our case meansfilling the gas tank a bit
          if(purchase.getSku().equals("coins_100")||purchase.getSku().equals("android.test.purchased")){
          showMessage("支付成功","成功购买100猫币");
   }
          }
          else {
             complain("Error while consuming: " +result);
          }
       }
   };
   
   // Listener that‘s called when we finishquerying the items we own
   IabHelper.QueryInventoryFinishedListenermGotInventoryListener = newIabHelper.QueryInventoryFinishedListener() {
       publicvoid onQueryInventoryFinished(IabResult result, Inventoryinventory) {
          Log.d(TAG, "Query inventoryfinished.");
          if (result.isFailure()) {
             complain("Failed to query inventory: " +result);
             return;
          }

          Log.d(TAG, "Query inventorywas successful.");

          if(inventory.hasPurchase("double_income")) {
          //查询到有受管理的商品支付成功需要将道具给用户
showMessage("成功Restore双倍金币", "查询到有双倍金币需要恢复");
}elseif(inventory.hasPurchase("cions_100")){
//查询到不受管理的商品支付成功需要将道具消耗掉
showMessage("成功Restore100金币","查询到有100金币需要恢复" );
}
       }
   };
   @Override
protected voidonActivityResult(int requestCode, int resultCode, Intent data){
// TODO Auto-generatedmethod stub
Log.d(TAG,"onActivityResult(" + requestCode + "," + resultCode + "," +data);

       // Pass onthe activity result to the helper for handling
       if(!mHelper.handleActivityResult(requestCode, resultCode, data)){
          // not handled, so handle itourselves (here‘s where you‘d
          // perform any handling ofactivity results not related to in-app
          // billing...
         super.onActivityResult(requestCode, resultCode, data);
       }
       else {
          Log.d(TAG, "onActivityResulthandled by IABUtil.");
       }
}
   @Override
protected void onDestroy(){
// TODO Auto-generatedmethod stub
super.onDestroy();
if (mHelper != null)mHelper.dispose();
       mHelper =null;
}
void complain(Stringmessage) {
       Log.e(TAG,"**** TrivialDrive Error: " + message);
      alert("Error: " + message);
   }
void alert(String message){
      AlertDialog.Builder bld = new AlertDialog.Builder(this);
      bld.setMessage(message);
      bld.setNeutralButton("OK", null);
       Log.d(TAG,"Showing alert dialog: " + message);
      bld.create().show();
   }
private voidshowMessage(String title,String message){
newAlertDialog.Builder(MainActivity.this).setTitle(title).setMessage(message).setPositiveButton("确定",null).show();
}
}

以上就是完整的Google in-appBilling接入过程，接下来会跟大家一起走一遍亚马逊支付,如有疑问请留言。