From e9d700e671395dd97dd2ad376dd7180ef44c79e0 Mon Sep 17 00:00:00 2001
From: Sylvain Berfini <sylvain.berfini@belledonne-communications.com>
Date: Tue, 19 Jul 2016 15:39:56 +0200
Subject: [PATCH] Recursive removal of shared_prefs in SettingsFragment

---
 src/org/linphone/LinphoneUtils.java    | 14 ++++++++++++++
 src/org/linphone/SettingsFragment.java |  4 ++--
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/src/org/linphone/LinphoneUtils.java b/src/org/linphone/LinphoneUtils.java
index 42661832b..f6e0edf3a 100644
--- a/src/org/linphone/LinphoneUtils.java
+++ b/src/org/linphone/LinphoneUtils.java
@@ -23,6 +23,7 @@ import static android.view.View.VISIBLE;
 
 import java.io.BufferedOutputStream;
 import java.io.BufferedReader;
+import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
@@ -464,5 +465,18 @@ public final class LinphoneUtils {
 		}
 		return extension;
 	}
+	
+	public static void recursiveFileRemoval(File root) {
+		if (!root.delete()) {
+			if (root.isDirectory()) {
+				File[] files = root.listFiles();
+		        if (files != null) {
+		            for (File f : files) {
+		            	recursiveFileRemoval(f);
+		            }
+		        }
+			}
+		}
+	}
 }
 
diff --git a/src/org/linphone/SettingsFragment.java b/src/org/linphone/SettingsFragment.java
index 4ea2381be..2d8c66e32 100644
--- a/src/org/linphone/SettingsFragment.java
+++ b/src/org/linphone/SettingsFragment.java
@@ -96,8 +96,8 @@ public class SettingsFragment extends PreferencesListFragment {
 	}
 	
 	private void removePreviousPreferencesFile() {
-		File dir = new File(getContext().getFilesDir().getAbsolutePath() + "shared_prefs");
-		dir.delete();
+		File dir = new File(getActivity().getFilesDir().getAbsolutePath() + "shared_prefs");
+		LinphoneUtils.recursiveFileRemoval(dir);
 	}
 
 	// Inits the values or the listener on some settings