Update SmartLockModule.java

Author: giggsoff

android/src/main/java/com/google/smartlock/SmartLockModule.java

@@ -68,6 +68,9 @@ public void onActivityResult(Activity activity, int requestCode, int resultCode,
             System.out.println("----------RESULT CODE : "+resultCode+"-----------");
 
             if (resultCode == SUCCESS_CODE) {
+                if(intent == null || Credential.EXTRA_KEY == null){
+                    return;
+                }
                 Credential credential = intent.getParcelableExtra(Credential.EXTRA_KEY);
                 if (credential == null) {
                     return;