diff --git a/app/build.gradle b/app/build.gradle
index 7ce4b87..72bd471 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,12 +1,12 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 26
-    buildToolsVersion "26.0.2"
+    compileSdkVersion 28
+
     defaultConfig {
         applicationId "org.communiquons.android.comunic.client"
         minSdkVersion 21
-        targetSdkVersion 26
+        targetSdkVersion 28
         versionCode 5
         versionName "1.4"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -44,12 +44,12 @@ android {
 }
 
 dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
-    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
-        exclude group: 'com.android.support', module: 'support-annotations'
-    })
-    compile 'com.android.support:appcompat-v7:26.+'
-    compile 'com.android.support.constraint:constraint-layout:1.0.2'
-    compile 'com.android.support:design:26.+'
-    testCompile 'junit:junit:4.12'
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'com.android.support:appcompat-v7:28.0.0-beta01'
+    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
+    implementation 'com.android.support:design:28.0.0-beta01'
+    implementation 'com.android.support:support-v4:28.0.0-beta01'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
 }
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index e3d4fd2..bee94cd 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -42,7 +42,12 @@
         <!-- PDF Viewer activity -->
         <activity
             android:name=".ui.activities.PDFActivity"
-            android:label="@string/activity_view_pdf_label"/>
+            android:label="@string/activity_view_pdf_label" />
+
+        <!-- Settings activity -->
+        <activity
+            android:name=".ui.activities.SettingsActivity"
+            android:label="@string/title_activity_settings"/>
     </application>
 
 </manifest>
\ No newline at end of file
diff --git a/app/src/main/java/org/communiquons/android/comunic/client/ui/activities/MainActivity.java b/app/src/main/java/org/communiquons/android/comunic/client/ui/activities/MainActivity.java
index 2ebb596..4f00eb1 100644
--- a/app/src/main/java/org/communiquons/android/comunic/client/ui/activities/MainActivity.java
+++ b/app/src/main/java/org/communiquons/android/comunic/client/ui/activities/MainActivity.java
@@ -2,7 +2,7 @@ package org.communiquons.android.comunic.client.ui.activities;
 
 import android.app.Activity;
 import android.app.AlertDialog;
-import android.app.FragmentTransaction;
+import android.support.v4.app.FragmentTransaction;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.os.AsyncTask;
@@ -345,7 +345,7 @@ public class MainActivity extends AppCompatActivity implements openConversationL
     void openFriendsFragment(){
 
         FriendsListFragment friendsListFragment = new FriendsListFragment();
-        FragmentTransaction transaction = getFragmentManager().beginTransaction();
+        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
         transaction.replace(R.id.main_fragment, friendsListFragment);
         transaction.addToBackStack(null);
         transaction.commit();
@@ -353,14 +353,11 @@ public class MainActivity extends AppCompatActivity implements openConversationL
     }
 
     /**
-     * Open settings fragment
+     * Open settings activity
      */
     void openSettingsFragment(){
-        SettingsFragment settingsFragment = new SettingsFragment();
-        FragmentTransaction transaction = getFragmentManager().beginTransaction();
-        transaction.replace(R.id.main_fragment, settingsFragment);
-        transaction.addToBackStack(null);
-        transaction.commit();
+        Intent intent = new Intent(this, SettingsActivity.class);
+        startActivity(intent);
     }
 
     /**
@@ -368,7 +365,7 @@ public class MainActivity extends AppCompatActivity implements openConversationL
      */
     void openNotificationsFragment(){
         NotificationsFragment notifications = new NotificationsFragment();
-        FragmentTransaction transaction = getFragmentManager().beginTransaction();
+        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
         transaction.replace(R.id.main_fragment, notifications);
         transaction.addToBackStack(null);
         transaction.commit();
@@ -379,7 +376,7 @@ public class MainActivity extends AppCompatActivity implements openConversationL
      */
     void openUserInfosFragment(){
         UserInfosFragment userInfosFragment = new UserInfosFragment();
-        FragmentTransaction transaction = getFragmentManager().beginTransaction();
+        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
         transaction.replace(R.id.main_fragment, userInfosFragment);
         transaction.addToBackStack(null);
         transaction.commit();
@@ -401,7 +398,7 @@ public class MainActivity extends AppCompatActivity implements openConversationL
         UserPageFragment userPageFragment = new UserPageFragment();
         userPageFragment.setArguments(args);
 
-        FragmentTransaction transaction = getFragmentManager().beginTransaction();
+        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
         transaction.replace(R.id.main_fragment, userPageFragment);
         transaction.addToBackStack(null);
         transaction.commit();
@@ -428,10 +425,10 @@ public class MainActivity extends AppCompatActivity implements openConversationL
         //This is important in order to avoid to get the user unable to quit the page.
         //Because it would get the user back to the user page fragment which would
         //redirect immediately to this fragment indefinitely.
-        getFragmentManager().popBackStackImmediate();
+        getSupportFragmentManager().popBackStackImmediate();
 
         //Perform the transition
-        FragmentTransaction transaction = getFragmentManager().beginTransaction();
+        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
         transaction.addToBackStack(null);
         transaction.replace(R.id.main_fragment, userAccessDeniedFragment);
         transaction.commit();
@@ -443,7 +440,7 @@ public class MainActivity extends AppCompatActivity implements openConversationL
      */
     void openConversationsListFragment(){
         ConversationsListFragment conversationsListFragment = new ConversationsListFragment();
-        FragmentTransaction transaction = getFragmentManager().beginTransaction();
+        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
         transaction.replace(R.id.main_fragment, conversationsListFragment);
         transaction.addToBackStack(null);
         transaction.commit();
@@ -466,7 +463,7 @@ public class MainActivity extends AppCompatActivity implements openConversationL
         conversationFragment.setArguments(args);
 
         //Display it
-        FragmentTransaction transaction = getFragmentManager().beginTransaction();
+        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
         transaction.replace(R.id.main_fragment, conversationFragment);
         transaction.addToBackStack(null);
         transaction.commit();
@@ -521,7 +518,7 @@ public class MainActivity extends AppCompatActivity implements openConversationL
         updateConversationFragment.setArguments(args);
 
         //Display the fragment
-        FragmentTransaction transaction = getFragmentManager().beginTransaction();
+        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
         transaction.replace(R.id.main_fragment, updateConversationFragment);
         transaction.addToBackStack(null);
         transaction.commit();
@@ -539,7 +536,7 @@ public class MainActivity extends AppCompatActivity implements openConversationL
         singlePostFragment.setArguments(arguments);
 
         //Perform the transaction
-        FragmentTransaction transaction = getFragmentManager().beginTransaction();
+        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
         transaction.addToBackStack(null);
         transaction.replace(R.id.main_fragment, singlePostFragment);
         transaction.commit();
@@ -554,7 +551,7 @@ public class MainActivity extends AppCompatActivity implements openConversationL
         LatestPostsFragment latestPostsFragment = new LatestPostsFragment();
 
         //Perform the transaction
-        FragmentTransaction transaction = getFragmentManager().beginTransaction();
+        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
         transaction.replace(R.id.main_fragment, latestPostsFragment);
         transaction.addToBackStack(null);
         transaction.commit();
diff --git a/app/src/main/java/org/communiquons/android/comunic/client/ui/activities/SettingsActivity.java b/app/src/main/java/org/communiquons/android/comunic/client/ui/activities/SettingsActivity.java
new file mode 100644
index 0000000..32eeef6
--- /dev/null
+++ b/app/src/main/java/org/communiquons/android/comunic/client/ui/activities/SettingsActivity.java
@@ -0,0 +1,50 @@
+package org.communiquons.android.comunic.client.ui.activities;
+
+import android.app.FragmentTransaction;
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v7.app.ActionBar;
+import android.support.v7.app.AppCompatActivity;
+import android.view.MenuItem;
+
+import org.communiquons.android.comunic.client.R;
+import org.communiquons.android.comunic.client.ui.fragments.SettingsFragment;
+
+/**
+ * Settings activity
+ *
+ * This activity only proxy the settings fragments, because of I could find a valid support for
+ * PreferenceFragment.
+ *
+ * @author Pierre HUBERT
+ */
+public class SettingsActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_settings);
+
+        //Open settings view
+        FragmentTransaction transaction = getFragmentManager().beginTransaction();
+        transaction.replace(R.id.fragment, new SettingsFragment());
+        transaction.commit();
+
+        ActionBar actionBar = getSupportActionBar();
+        if (actionBar != null) {
+            actionBar.setDisplayHomeAsUpEnabled(true);
+        }
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case android.R.id.home:
+                // app icon in action bar clicked; goto parent activity.
+                this.finish();
+                return true;
+            default:
+                return super.onOptionsItemSelected(item);
+        }
+    }
+}
diff --git a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/ConversationFragment.java b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/ConversationFragment.java
index b8e4168..963ab29 100644
--- a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/ConversationFragment.java
+++ b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/ConversationFragment.java
@@ -1,7 +1,7 @@
 package org.communiquons.android.comunic.client.ui.fragments;
 
 import android.app.AlertDialog;
-import android.app.Fragment;
+import android.support.v4.app.Fragment;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.graphics.Bitmap;
@@ -206,13 +206,13 @@ public class ConversationFragment extends Fragment
 
     @Nullable
     @Override
-    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container,
                              Bundle savedInstanceState) {
         return inflater.inflate(R.layout.fragment_conversation, container, false);
     }
 
     @Override
-    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
 
         //Main progress bar
diff --git a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/ConversationsListFragment.java b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/ConversationsListFragment.java
index 7eb530f..8ff9913 100644
--- a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/ConversationsListFragment.java
+++ b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/ConversationsListFragment.java
@@ -1,7 +1,8 @@
 package org.communiquons.android.comunic.client.ui.fragments;
 
 import android.app.AlertDialog;
-import android.app.Fragment;
+import android.support.annotation.NonNull;
+import android.support.v4.app.Fragment;
 import android.content.DialogInterface;
 import android.os.AsyncTask;
 import android.os.Bundle;
@@ -97,12 +98,12 @@ public class ConversationsListFragment extends Fragment implements AdapterView.O
 
     @Nullable
     @Override
-    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
         return inflater.inflate(R.layout.fragment_conversationslist, container, false);
     }
 
     @Override
-    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
 
         //Database helper
diff --git a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/FriendsListFragment.java b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/FriendsListFragment.java
index efe1cf8..9f0c424 100644
--- a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/FriendsListFragment.java
+++ b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/FriendsListFragment.java
@@ -1,7 +1,7 @@
 package org.communiquons.android.comunic.client.ui.fragments;
 
 import android.app.AlertDialog;
-import android.app.Fragment;
+import android.support.v4.app.Fragment;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.os.AsyncTask;
diff --git a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/LatestPostsFragment.java b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/LatestPostsFragment.java
index ffc3733..176b5c3 100644
--- a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/LatestPostsFragment.java
+++ b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/LatestPostsFragment.java
@@ -1,7 +1,8 @@
 package org.communiquons.android.comunic.client.ui.fragments;
 
-import android.app.Fragment;
-import android.app.FragmentTransaction;
+import android.support.annotation.NonNull;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentTransaction;
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
@@ -89,12 +90,12 @@ public class LatestPostsFragment extends Fragment
 
     @Nullable
     @Override
-    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
         return inflater.inflate(R.layout.fragment_latest_posts, container, false);
     }
 
     @Override
-    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
 
         //Get some of the views
diff --git a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/NotificationsFragment.java b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/NotificationsFragment.java
index bf22f7e..e091dc9 100644
--- a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/NotificationsFragment.java
+++ b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/NotificationsFragment.java
@@ -1,7 +1,8 @@
 package org.communiquons.android.comunic.client.ui.fragments;
 
 import android.app.AlertDialog;
-import android.app.Fragment;
+import android.support.annotation.NonNull;
+import android.support.v4.app.Fragment;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.os.AsyncTask;
@@ -103,12 +104,12 @@ public class NotificationsFragment extends Fragment implements View.OnCreateCont
 
     @Nullable
     @Override
-    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
         return inflater.inflate(R.layout.fragment_notifications, container, false);
     }
 
     @Override
-    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
 
         //Get loading progress view
diff --git a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/PostsCreateFormFragment.java b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/PostsCreateFormFragment.java
index c1491a7..385b140 100644
--- a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/PostsCreateFormFragment.java
+++ b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/PostsCreateFormFragment.java
@@ -1,7 +1,8 @@
 package org.communiquons.android.comunic.client.ui.fragments;
 
 import android.app.AlertDialog;
-import android.app.Fragment;
+import android.support.annotation.NonNull;
+import android.support.v4.app.Fragment;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.graphics.Bitmap;
@@ -100,12 +101,12 @@ public class PostsCreateFormFragment extends Fragment {
 
     @Nullable
     @Override
-    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
         return inflater.inflate(R.layout.fragment_post_create_form, container, false);
     }
 
     @Override
-    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
 
         //Get post text area
diff --git a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/PostsListFragment.java b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/PostsListFragment.java
index 52de0ce..0174e47 100644
--- a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/PostsListFragment.java
+++ b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/PostsListFragment.java
@@ -1,7 +1,8 @@
 package org.communiquons.android.comunic.client.ui.fragments;
 
 import android.app.AlertDialog;
-import android.app.Fragment;
+import android.support.annotation.NonNull;
+import android.support.v4.app.Fragment;
 import android.content.DialogInterface;
 import android.os.AsyncTask;
 import android.os.Bundle;
@@ -163,12 +164,12 @@ public class PostsListFragment extends Fragment
 
     @Nullable
     @Override
-    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
         return inflater.inflate(R.layout.fragment_postslist, container, false);
     }
 
     @Override
-    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
 
         //Get the list view
diff --git a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/SettingsFragment.java b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/SettingsFragment.java
index 1d62c63..f4291f0 100644
--- a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/SettingsFragment.java
+++ b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/SettingsFragment.java
@@ -5,7 +5,6 @@ import android.preference.PreferenceFragment;
 import android.support.annotation.Nullable;
 
 import org.communiquons.android.comunic.client.R;
-import org.communiquons.android.comunic.client.ui.activities.MainActivity;
 
 /**
  * Application preferences fragment
@@ -31,8 +30,5 @@ public class SettingsFragment extends PreferenceFragment {
         //Update the title
         getActivity().setTitle(R.string.fragment_settings_title);
 
-        //Update the bottom navigation menu
-        ((MainActivity) getActivity())
-                .setSelectedNavigationItem(R.id.main_bottom_navigation_me_view);
     }
 }
diff --git a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/SinglePostFragment.java b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/SinglePostFragment.java
index 2ffa2d2..2cc3795 100644
--- a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/SinglePostFragment.java
+++ b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/SinglePostFragment.java
@@ -1,8 +1,8 @@
 package org.communiquons.android.comunic.client.ui.fragments;
 
-import android.app.Fragment;
-import android.app.FragmentTransaction;
-import android.content.Context;
+import android.support.annotation.NonNull;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentTransaction;
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
@@ -81,7 +81,7 @@ public class SinglePostFragment extends Fragment {
 
     @Nullable
     @Override
-    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
         return inflater.inflate(R.layout.fragment_single_post, container, false);
     }
 
diff --git a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/UpdateConversationFragment.java b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/UpdateConversationFragment.java
index 591b7e3..fb33d53 100644
--- a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/UpdateConversationFragment.java
+++ b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/UpdateConversationFragment.java
@@ -1,7 +1,8 @@
 package org.communiquons.android.comunic.client.ui.fragments;
 
 import android.app.Activity;
-import android.app.Fragment;
+import android.support.annotation.NonNull;
+import android.support.v4.app.Fragment;
 import android.content.Intent;
 import android.os.AsyncTask;
 import android.os.Bundle;
@@ -183,12 +184,12 @@ public class UpdateConversationFragment extends Fragment {
 
     @Nullable
     @Override
-    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
         return inflater.inflate(R.layout.fragment_update_conversation, container, false);
     }
 
     @Override
-    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
 
         //Get the views
diff --git a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/UserAccessDeniedFragment.java b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/UserAccessDeniedFragment.java
index 2816e01..089f319 100644
--- a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/UserAccessDeniedFragment.java
+++ b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/UserAccessDeniedFragment.java
@@ -1,6 +1,7 @@
 package org.communiquons.android.comunic.client.ui.fragments;
 
-import android.app.Fragment;
+import android.support.annotation.NonNull;
+import android.support.v4.app.Fragment;
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
@@ -126,12 +127,12 @@ public class UserAccessDeniedFragment extends Fragment implements View.OnClickLi
 
     @Nullable
     @Override
-    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
         return inflater.inflate(R.layout.fragment_user_access_denied, container, false);
     }
 
     @Override
-    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
 
         //Get user related fields
diff --git a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/UserInfosFragment.java b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/UserInfosFragment.java
index 8fc9ae1..e4744bd 100644
--- a/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/UserInfosFragment.java
+++ b/app/src/main/java/org/communiquons/android/comunic/client/ui/fragments/UserInfosFragment.java
@@ -1,7 +1,8 @@
 package org.communiquons.android.comunic.client.ui.fragments;
 
 
-import android.app.Fragment;
+import android.support.annotation.NonNull;
+import android.support.v4.app.Fragment;
 import android.content.Context;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
@@ -44,12 +45,12 @@ public class UserInfosFragment extends Fragment {
 
     @Nullable
     @Override
-    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
         return inflater.inflate(R.layout.fragment_userinfos, container, false);
     }
 
     @Override
-    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
 
         //Get context
diff --git a/app/src/main/res/layout/activity_settings.xml b/app/src/main/res/layout/activity_settings.xml
new file mode 100644
index 0000000..e2812e3
--- /dev/null
+++ b/app/src/main/res/layout/activity_settings.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:id="@+id/fragment" />
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index c93694e..0a30c8f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,10 +2,12 @@
 
 buildscript {
     repositories {
-        jcenter{url "http://jcenter.bintray.com/"}
+        google()
+        jcenter()
     }
+
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.1.3'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -14,8 +16,10 @@ buildscript {
 
 allprojects {
     repositories {
-        jcenter{url "http://jcenter.bintray.com/"}
+        google()
+        jcenter()
     }
+
 }
 
 task clean(type: Delete) {
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index fab8d06..55f5095 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Sun Oct 29 14:35:49 CET 2017
+#Mon Jul 30 10:20:26 CEST 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip