From 66d24112ff9a6146d8f64db77d2e3f565e2da00c Mon Sep 17 00:00:00 2001
From: Andrey <arkty@users.noreply.github.com>
Date: Sun, 13 Jul 2014 19:29:10 +0400
Subject: [PATCH] NPE on empty directory

Fixes NullPointerException when SD card is empty.
File.listFiles() can return null.
http://developer.android.com/reference/java/io/File.html#listFiles%28%29
---
 .../nononsenseapps/filepicker/FilePickerFragment.java | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/library/src/main/java/com/nononsenseapps/filepicker/FilePickerFragment.java b/library/src/main/java/com/nononsenseapps/filepicker/FilePickerFragment.java
index edee91c..e5b94e0 100644
--- a/library/src/main/java/com/nononsenseapps/filepicker/FilePickerFragment.java
+++ b/library/src/main/java/com/nononsenseapps/filepicker/FilePickerFragment.java
@@ -141,10 +141,13 @@ public class FilePickerFragment extends AbstractFilePickerFragment<File> {
             @Override
             public List<File> loadInBackground() {
                 ArrayList<File> files = new ArrayList<File>();
-                for (java.io.File f : currentPath.listFiles()) {
-                    if ((mode == MODE_FILE || mode == MODE_FILE_AND_DIR)
-                            || f.isDirectory()) {
-                        files.add(f);
+                File[] listFiles = currentPath.listFiles();
+                if(listFiles != null) {
+                    for (java.io.File f : currentPath.listFiles()) {
+                        if ((mode == MODE_FILE || mode == MODE_FILE_AND_DIR)
+                                || f.isDirectory()) {
+                            files.add(f);
+                        }
                     }
                 }
                 return files;