Edit Options Menu after receiving data from an asyncronous task

Question

I am implementing the In-App Billing service in my app. I set up in `onCreate()` the call to the `IabHelper.queryInventoryAsync()` to retrieve previous purchases. If the item is purchased, I set a global boolean variable to true. Meanwhile, in `onCreateOptionsMenu()`, I check that variable whether to remove a MenuItem or not. My problem is that `onCreateOptionsMenu()`, as expected, is sometimes called before the async task is done setting my boolean variable. I need a solution to tell `onCreateOptionsMenu()` to wait for that task to set the boolean value, so that it can create the menu accordingly. Here's the code in detail: ``` @Override protected void onCreate(Bundle savedInstanceState) { //other stuff... helper.queryInventoryAsync(new IabHelper.QueryInventoryFinishedListener() { public void onQueryInventoryFinished(IabResult result, Inventory inventory) { if (result.isFailure()) { // handle error here return; } if (inventory.hasPurchase(REMOVE_ADS_SKU)) { //item purchased. set cont…

Accepted Answer

I've found that the most robust way to do this is by invalidating the whole menu. So, when you get your async result (in `onQueryInventoryFinished`) just call:

```
invalidateOptionsMenu();
```

or, if you are using a `FragmentActivity` (`SherlockFragmentActivity` or `ActionBarActivity`)

```
supportInvalidateOptionsMenu();
```

In this way the menu will be recreated and you can safely add or remove items as you need.

Edit Options Menu after receiving data from an asyncronous task

Solution

Problem