[firebase_dynamic_links] Don't crash if activity is missing

Author: mehmetf

packages/firebase_dynamic_links/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.5.0+3
+
+* Don't crash if registrar.activity() is not there.
+
 ## 0.5.0+2
 
 * Change the OnLinkError object to be a real exception.

packages/firebase_dynamic_links/android/src/main/java/io/flutter/plugins/firebasedynamiclinks/FirebaseDynamicLinksPlugin.java

@@ -41,7 +41,6 @@ public boolean onNewIntent(Intent intent) {
     FirebaseDynamicLinks.getInstance()
         .getDynamicLink(intent)
         .addOnSuccessListener(
-            registrar.activity(),
             new OnSuccessListener<PendingDynamicLinkData>() {
               @Override
               public void onSuccess(PendingDynamicLinkData pendingDynamicLinkData) {
@@ -53,7 +52,6 @@ public void onSuccess(PendingDynamicLinkData pendingDynamicLinkData) {
               }
             })
         .addOnFailureListener(
-            registrar.activity(),
             new OnFailureListener() {
               @Override
               public void onFailure(@NonNull Exception e) {
@@ -117,6 +115,12 @@ private Map<String, Object> getMapFromPendingDynamicLinkData(
   }
 
   private void handleGetInitialDynamicLink(final Result result) {
+    // If there's no activity, then there's no initial dynamic link.
+    if (registrar.activity() == null) {
+      result.success(null);
+      return;
+    }
+
     FirebaseDynamicLinks.getInstance()
         .getDynamicLink(registrar.activity().getIntent())
         .addOnSuccessListener(

packages/firebase_dynamic_links/pubspec.yaml

@@ -1,7 +1,7 @@
 name: firebase_dynamic_links
 description: Flutter plugin for Google Dynamic Links for Firebase, an app solution for creating
   and handling links across multiple platforms.
-version: 0.5.0+2
+version: 0.5.0+3
 
 author: Flutter Team <flutter-dev@googlegroups.com>
 homepage: https://github.com/FirebaseExtended/flutterfire/tree/master/packages/firebase_dynamic_links