这是我的代码：
public class Premium extends Activity implements IabBroadcastReceiver.IabBroadcastListener {
Button premium;
//toast
Context context = getBaseContext();
int duration = Toast.LENGTH_SHORT;
//debug tag
static final String TAG = "CHORDS";
//does the user have premium?
boolean mIsPremium = false;
//SKUs
static final String SKU_PREMIUM = "chords_premium";
// (arbitrary) request code for the purchase flow
static final int RC_REQUEST = 10001;
// The helper object
IabHelper mHelper;
// Provides purchase notification while this app is running
IabBroadcastReceiver mBroadcastReceiver;
public void onCreate(Bundle b) {
super.onCreate(b);
setContentView(R.layout.premium_layout);
premium = (Button) findViewById(R.id.premium);
String base64EncodedPublicKey = "Key"
// Create the helper, passing it our context and the public key to verify signatures with
Log.d(TAG, "Creating IAB helper.");
mHelper = new IabHelper(this, base64EncodedPublicKey);
// Start setup. This is asynchronous and the specified listener
// will be called once setup completes.
Log.d(TAG, "Starting setup.");
mHelper.startSetup(new IabHelper.OnIabSetupFinishedListener() {
public void onIabSetupFinished(IabResult result) {
Log.d(TAG, "Setup finished.");
if (!result.isSuccess()) {
// Oh noes, there was a problem.
Log.d(TAG, "Problem setting up in-app billing: " + result);
return;
}
// Have we been disposed of in the meantime? If so, quit.
if (mHelper == null) return;
mBroadcastReceiver = new IabBroadcastReceiver(Premium.this);
IntentFilter broadcastFilter = new IntentFilter(IabBroadcastReceiver.ACTION);
registerReceiver(mBroadcastReceiver, broadcastFilter);
Log.d(TAG, "Setup successful. Querying inventory.");
try {
mHelper.queryInventoryAsync(mGotInventoryListener);
} catch (IabHelper.IabAsyncInProgressException e) {
Log.d(TAG, "Error querying inventory. Another async operation in progress.");
}
}
});
}
// Listener that's called when we finish querying the items and subscriptions we own
IabHelper.QueryInventoryFinishedListener mGotInventoryListener = new IabHelper.QueryInventoryFinishedListener() {
public void onQueryInventoryFinished(IabResult result, Inventory inventory) {
Log.d(TAG, "Query inventory finished.");
// Have we been disposed of in the meantime? If so, quit.
if (mHelper == null) return;
// Is it a failure?
if (result.isFailure()) {
Log.d(TAG, "Failed to query inventory: " + result);
return;
}
Log.d(TAG, "Query inventory was successful.");
/*
* Check for items we own. Notice that for each purchase, we check
* the developer payload to see if it's correct! See
* verifyDeveloperPayload().
*/
// Do we have the premium upgrade?
Purchase premiumPurchase = inventory.getPurchase(SKU_PREMIUM);
mIsPremium = (premiumPurchase != null && verifyDeveloperPayload(premiumPurchase));
Log.d(TAG, "User is " + (mIsPremium ? "PREMIUM" : "NOT PREMIUM"));
premium.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mIsPremium = true)
premium.setEnabled(false);
else {
}
}
});
};
};
@Override
public void receivedBroadcast() {
// Received a broadcast notification that the inventory of items has changed
Log.d(TAG, "Received broadcast notification. Querying inventory.");
try {
mHelper.queryInventoryAsync(mGotInventoryListener);
} catch (IabHelper.IabAsyncInProgressException e) {
Log.d(TAG, "Error querying inventory. Another async operation in progress.");
}
}
// User clicked the "Upgrade to Premium" button.
public void onUpgradeAppButtonClicked(View arg0) {
Log.d(TAG, "Upgrade button clicked; launching purchase flow for upgrade.");
/* 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 = "";
try {
mHelper.launchPurchaseFlow(this, SKU_PREMIUM, RC_REQUEST,
mPurchaseFinishedListener, payload);
} catch (IabHelper.IabAsyncInProgressException e) {
Log.d(TAG,"Error launching purchase flow. Another async operation in progress.");
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
Log.d(TAG, "onActivityResult(" + requestCode + "," + resultCode + "," + data);
if (mHelper == null) return;
// Pass on the activity result to the helper for handling
if (!mHelper.handleActivityResult(requestCode, resultCode, data)) {
super.onActivityResult(requestCode, resultCode, data);
}
else {
Log.d(TAG, "onActivityResult handled by IABUtil.");
}
}
/** Verifies the developer payload of a purchase. */
boolean verifyDeveloperPayload(Purchase p) {
String payload = p.getDeveloperPayload();
return true;
}
// Callback for when a purchase is finished
IabHelper.OnIabPurchaseFinishedListener mPurchaseFinishedListener = new IabHelper.OnIabPurchaseFinishedListener() {
public void onIabPurchaseFinished(IabResult result, Purchase purchase) {
Log.d(TAG, "Purchase finished: " + result + ", purchase: " + purchase);
// if we were disposed of in the meantime, quit.
if (mHelper == null) return;
if (result.isFailure()) {
Log.d(TAG, "Error purchasing: " + result);
return;
}
if (!verifyDeveloperPayload(purchase)) {
Log.d(TAG, "Error purchasing. Authenticity verification failed.");
return;
}
Log.d(TAG, "Purchase successful.");
if (purchase.getSku().equals(SKU_PREMIUM)) {
// bought the premium upgrade!
Log.d(TAG, "Purchase is premium upgrade. Congratulating user.");
Toast toast = Toast.makeText(context, R.string.premium_bought, duration);
toast.show();
mIsPremium = true;
updateUI();
}
}
};
// We're being destroyed. It's important to dispose of the helper here!
@Override
public void onDestroy() {
super.onDestroy();
// very important:
if (mBroadcastReceiver != null) {
unregisterReceiver(mBroadcastReceiver);
}
// very important:
Log.d(TAG, "Destroying helper.");
if (mHelper != null) {
mHelper.disposeWhenFinished();
mHelper = null;
}
}
public void updateUI() {
//TODO: elimina pubblicita
}
}
正如我在上面的标题中所写，我需要开始google purchase 按下我的高级按钮时。关于如何特别做这些事情的android文档并不是很清楚。
我应该在OnClick()方法中添加什么来启动购买流程？
答案 0 :(得分：1)
你应该致电
mHelper.startSetup
单击以开始购买流程。