Fixes NPE when activity is destroyed by OS (#402)

Closes #402.

CHANGELOG.md

@@ -1,3 +1,6 @@
+## 2.0.5
+Android: Fixes [#402](https://github.com/miguelpruivo/flutter_file_picker/issues/402).
+
 ## 2.0.4
 Desktop (Go): Fixes directory pick on Linux.
 

android/src/main/java/com/mr/flutter/plugin/filepicker/FilePickerDelegate.java

@@ -73,6 +73,10 @@ public class FilePickerDelegate implements PluginRegistry.ActivityResultListener
     @Override
     public boolean onActivityResult(final int requestCode, final int resultCode, final Intent data) {
 
+        if(type == null) {
+            return false;
+        }
+
         if (requestCode == REQUEST_CODE && resultCode == Activity.RESULT_OK) {
 
             if (eventSink != null) {

pubspec.yaml

@@ -1,7 +1,7 @@
 name: file_picker
 description: A package that allows you to use a native file explorer to pick single or multiple absolute file paths, with extension filtering support.
 homepage: https://github.com/miguelpruivo/plugins_flutter_file_picker
-version: 2.0.4
+version: 2.0.5
 
 dependencies:
   flutter: