adding some null checks

Author: tibbi

app/src/main/kotlin/com/simplemobiletools/contacts/activities/MainActivity.kt

@@ -111,10 +111,10 @@ class MainActivity : SimpleActivity(), RefreshContactsListener {
             if (viewpager.adapter == null) {
                 initFragments()
             }
-            contacts_fragment.initContacts()
-            contacts_fragment.onActivityResume()
-            favorites_fragment.initContacts()
-            favorites_fragment.onActivityResume()
+            contacts_fragment?.initContacts()
+            contacts_fragment?.onActivityResume()
+            favorites_fragment?.initContacts()
+            favorites_fragment?.onActivityResume()
         }
         isFirstResume = false
     }

app/src/main/kotlin/com/simplemobiletools/contacts/fragments/MyViewPagerFragment.kt

@@ -179,7 +179,7 @@ abstract class MyViewPagerFragment(context: Context, attributeSet: AttributeSet)
     }
 
     fun onSearchOpened() {
-        contactsIgnoringSearch = (fragment_list.adapter as ContactsAdapter).contactItems as ArrayList
+        contactsIgnoringSearch = (fragment_list.adapter as? ContactsAdapter)?.contactItems as ArrayList
     }
 
     fun onSearchClosed() {