Sample_of_using_IapDelegateActivity.java

// Example 1, from an android.app.Activity: 
// Use the startActivityForResult(Intent, int) and subscribe
// the result in onActivityResult(int, int, Intent).
startActivityForResult(
    new Intent(this, IapDelegateActivity.class)
        .putExtra(IapDelegateActivity.PARAMS_SKU, "sku")
        .putExtra(IapDelegateActivity.PARAMS_SKU_PRICE, 1.99f));
   
// Example 2, from a android.app.Service:
// Use the startActivity(Intent) and subscribe the result in
// android.content.BroadcastReceiver.onReceive(Context, Intent).
startActivity(
    new Intent(this, IapDelegateActivity.class)
        .putExtra(IapDelegateActivity.PARAMS_SKU, "sku")
        .putExtra(IapDelegateActivity.PARAMS_SKU_PRICE, 1.99f))