avoid calling [UIApplication sharedApplication] in app extensions (#1503)

1 files changed, 9 insertions, 2 deletions

diff --git a/Firebase/Messaging/FIRMessaging.m b/Firebase/Messaging/FIRMessaging.m
index 5dd7004..a92f185 100644
--- a/Firebase/Messaging/FIRMessaging.m
+++ b/Firebase/Messaging/FIRMessaging.m
@@ -378,7 +378,10 @@ NSString *const kFIRMessagingPlistAutoInitEnabled =
     });
     return;
   }
-  UIApplication *application = [UIApplication sharedApplication];
+  UIApplication *application = FIRMessagingUIApplication();
+  if (!application) {
+    return;
+  }
   id<UIApplicationDelegate> appDelegate = application.delegate;
   SEL continueUserActivitySelector =
       @selector(application:continueUserActivity:restorationHandler:);
@@ -611,7 +614,11 @@ NSString *const kFIRMessagingPlistAutoInitEnabled =
   // We require a token from Instance ID
   NSString *token = self.defaultFcmToken;
   // Only on foreground connections
-  UIApplicationState applicationState = [UIApplication sharedApplication].applicationState;
+  UIApplication *application = FIRMessagingUIApplication();
+  if (!application) {
+    return NO;
+  }
+  UIApplicationState applicationState = application.applicationState;
   BOOL shouldBeConnected = _shouldEstablishDirectChannel &&
                            (token.length > 0) &&
                            applicationState == UIApplicationStateActive;