Here are the examples of the java api class com.google.android.gms.games.multiplayer.Invitation taken from open source projects.
1. MainActivity#handleInvitationInboxResult()
Project: android-basic-samples
File: MainActivity.java
File: MainActivity.java
// Handle the result of the invitation inbox UI, where the player can pick an invitation // to accept. We react by accepting the selected invitation, if any. private void handleInvitationInboxResult(int response, Intent data) { if (response != Activity.RESULT_OK) { Log.w(TAG, "*** invitation inbox UI cancelled, " + response); switchToMainScreen(); return; } Log.d(TAG, "Invitation inbox UI succeeded."); Invitation inv = data.getExtras().getParcelable(Multiplayer.EXTRA_INVITATION); // accept invitation acceptInviteToRoom(inv.getInvitationId()); }