diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index 3068cd4..9cb76e2 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -10,6 +10,7 @@
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/MQA-Android-2.7.4" />
             <option value="$PROJECT_DIR$/app" />
           </set>
         </option>
diff --git a/MQA-Android-2.7.4/MQA-Android-2.7.4.aar b/MQA-Android-2.7.4/MQA-Android-2.7.4.aar
new file mode 100644
index 0000000..f426fe0
Binary files /dev/null and b/MQA-Android-2.7.4/MQA-Android-2.7.4.aar differ
diff --git a/MQA-Android-2.7.4/MQA-Android-2.7.4.iml b/MQA-Android-2.7.4/MQA-Android-2.7.4.iml
new file mode 100644
index 0000000..31d9bf8
--- /dev/null
+++ b/MQA-Android-2.7.4/MQA-Android-2.7.4.iml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module external.linked.project.id=":MQA-Android-2.7.4" external.linked.project.path="$MODULE_DIR$" external.root.project.path="$MODULE_DIR$/.." external.system.id="GRADLE" external.system.module.group="Testapp" external.system.module.version="unspecified" type="JAVA_MODULE" version="4">
+  <component name="FacetManager">
+    <facet type="android-gradle" name="Android-Gradle">
+      <configuration>
+        <option name="GRADLE_PROJECT_PATH" value=":MQA-Android-2.7.4" />
+      </configuration>
+    </facet>
+    <facet type="java-gradle" name="Java-Gradle">
+      <configuration>
+        <option name="BUILD_FOLDER_PATH" value="$MODULE_DIR$/build" />
+        <option name="BUILDABLE" value="false" />
+      </configuration>
+    </facet>
+  </component>
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/.gradle" />
+      <excludeFolder url="file://$MODULE_DIR$/build" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/MQA-Android-2.7.4/build.gradle b/MQA-Android-2.7.4/build.gradle
new file mode 100644
index 0000000..c27958e
--- /dev/null
+++ b/MQA-Android-2.7.4/build.gradle
@@ -0,0 +1,2 @@
+configurations.create("default")
+artifacts.add("default", file('MQA-Android-2.7.4.aar'))
\ No newline at end of file
diff --git a/app/app.iml b/app/app.iml
index b059125..d84bf2a 100644
--- a/app/app.iml
+++ b/app/app.iml
@@ -82,6 +82,8 @@
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/rs" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/symbols" />
       <excludeFolder url="file://$MODULE_DIR$/build/outputs" />
+      <excludeFolder url="file://$MODULE_DIR$/build/reports" />
+      <excludeFolder url="file://$MODULE_DIR$/build/test-results" />
       <excludeFolder url="file://$MODULE_DIR$/build/tmp" />
     </content>
     <orderEntry type="jdk" jdkName="Android API 21 Platform" jdkType="Android SDK" />
@@ -89,5 +91,7 @@
     <orderEntry type="library" exported="" name="appcompat-v7-21.0.3" level="project" />
     <orderEntry type="library" exported="" name="support-v4-21.0.3" level="project" />
     <orderEntry type="library" exported="" name="support-annotations-21.0.3" level="project" />
+    <orderEntry type="module" module-name="MQA-Android-2.7.4" exported="" />
+    <orderEntry type="library" exported="" name="MQA-Android-2.7.4-unspecified" level="project" />
   </component>
 </module>
\ No newline at end of file
diff --git a/app/build.gradle b/app/build.gradle
index e229c5c..b7be46c 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -23,6 +23,7 @@ android {
 }
 
 dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
+    compile fileTree(include: ['*.jar'], dir: 'libs')
     compile 'com.android.support:appcompat-v7:21.0.3'
+    compile project(':MQA-Android-2.7.4')
 }
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 5590a65..67be51b 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -2,8 +2,16 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.educationet.k12.app" >
 
+    <!-- Permissions -->
+    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
     <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
+    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
+    <uses-permission android:name="android.permission.USE_CREDENTIALS" />
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
+    <uses-permission android:name="android.permission.BLUETOOTH" />
 
     <application
         android:allowBackup="true"
@@ -69,6 +77,10 @@
             android:name="com.educationet.k12.app.TeacherQuestion"
             android:label="@string/title_activity_teacher_question" >
         </activity>
+        <!-- Quality assurance application activities -->
+        <activity android:name="com.ibm.mqa.ui.ProblemActivity" />
+        <activity android:name="com.ibm.mqa.ui.FeedbackActivity" />
+        <activity android:name="com.ibm.mqa.ui.ScreenshotEditorActivity" />
     </application>
 
 </manifest>
diff --git a/app/src/main/java/com/educationet/k12/app/ArgumentList.java b/app/src/main/java/com/educationet/k12/app/ArgumentList.java
index 7fbfa8e..1dba33b 100644
--- a/app/src/main/java/com/educationet/k12/app/ArgumentList.java
+++ b/app/src/main/java/com/educationet/k12/app/ArgumentList.java
@@ -12,8 +12,8 @@
 /***
  * Created by K12-Dev-Team on 25/03/2015.
  * * This class extends the argument arraylist of implementing the interface parceable
-   * And a method to return the data in string with the format json
-   * It also implements a method of request arguments to the database
+ * And a method to return the data in string with the format json
+ * It also implements a method of request arguments to the database
  */
 
 /**
diff --git a/app/src/main/java/com/educationet/k12/app/MainActivity.java b/app/src/main/java/com/educationet/k12/app/MainActivity.java
index ee0f4f4..5cca2ba 100644
--- a/app/src/main/java/com/educationet/k12/app/MainActivity.java
+++ b/app/src/main/java/com/educationet/k12/app/MainActivity.java
@@ -13,6 +13,8 @@
 import android.widget.EditText;
 import android.widget.Toast;
 
+import com.ibm.mqa.MQA;
+
 /**
  * Login Main Activity
  * @author K12-Dev-Team
@@ -21,7 +23,7 @@
  */
 public class MainActivity extends ActionBarActivity {
     //subclass for login execution
-
+    public static final String APP_KEY = "a7eada52bd15b505d07f486a2a8d729bc6b4a10f";
     /**
      * internal class of management of the login asynchronous
      */
@@ -72,7 +74,15 @@ protected void onPostExecute(User utente) {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+        com.ibm.mqa.config.Configuration configuration = new com.ibm.mqa.config.Configuration.Builder(this)
+                .withAPIKey(APP_KEY) //Provides the quality assurance application APP_KEY
+                .withMode(MQA.Mode.QA) //Selects the quality assurance application mode
+                .withReportOnShakeEnabled(true) //Enables shake report trigger
+                .build();
+
+        MQA.startNewSession(MainActivity.this, configuration);
         setloginsaved();
+
     }
 
     /**
diff --git a/app/src/main/java/com/educationet/k12/app/TeacherQuestion.java b/app/src/main/java/com/educationet/k12/app/TeacherQuestion.java
index 7fddd84..b1d16f1 100644
--- a/app/src/main/java/com/educationet/k12/app/TeacherQuestion.java
+++ b/app/src/main/java/com/educationet/k12/app/TeacherQuestion.java
@@ -3,6 +3,7 @@
 import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
+import android.os.AsyncTask;
 import android.os.Bundle;
 import android.util.Log;
 import android.view.LayoutInflater;
@@ -24,6 +25,8 @@ public class TeacherQuestion extends Activity {
     private static String token;
     private AdapterCustom dataAdapter = null;
     private QueryList teacherQuestionList=null;
+    private ListView listView;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -63,8 +66,9 @@ public void onQuizSelect(View view){
         String quiz=((TextView)view).getHint().toString();
         teacherQuestionList =new QueryList(quiz);
         try {
+            Toast.makeText(getApplicationContext(), "Downloading: " + ((TextView)view).getText().toString()+" Please Wait :)", Toast.LENGTH_LONG).show();
+            enableDisableView(listView,false);
             teacherQuestionList.getHTTP(token);
-            Toast.makeText(getApplicationContext(), "Selected: " + ((TextView)view).getText().toString(), Toast.LENGTH_LONG).show();
             Intent i=new Intent(this,Question.class);
             Bundle extras=new Bundle();
             extras.putParcelable("utentec", this.utente);
@@ -75,14 +79,26 @@ public void onQuizSelect(View view){
         } catch (NullPointerException e) {
             Toast.makeText(getApplicationContext(), "No question available for this quiz!", Toast.LENGTH_LONG).show();
         }
+        finally {
+            enableDisableView(listView,true);
+        }
     }
+    public static void enableDisableView(View view, boolean enabled) {
+        view.setEnabled(enabled);
+        if ( view instanceof ViewGroup ) {
+            ViewGroup group = (ViewGroup)view;
 
+            for ( int idx = 0 ; idx < group.getChildCount() ; idx++ ) {
+                enableDisableView(group.getChildAt(idx), enabled);
+            }
+        }
+    }
 
 
     private void displayListView() {
         //Array list of Arguments
         dataAdapter = new AdapterCustom(this,R.layout.list_item1, listaquestionari);
-        ListView listView = (ListView) findViewById(R.id.listView2);
+        listView = (ListView) findViewById(R.id.listView2);
         // Assing the adapter to the listview
         listView.setAdapter(dataAdapter);
     }
diff --git a/app/src/main/res/drawable-hdpi/ans_corr.png b/app/src/main/res/drawable-hdpi/ans_corr.png
new file mode 100644
index 0000000..dd85c1d
Binary files /dev/null and b/app/src/main/res/drawable-hdpi/ans_corr.png differ
diff --git a/app/src/main/res/drawable-hdpi/ans_ques.png b/app/src/main/res/drawable-hdpi/ans_ques.png
new file mode 100644
index 0000000..89c1c9b
Binary files /dev/null and b/app/src/main/res/drawable-hdpi/ans_ques.png differ
diff --git a/app/src/main/res/drawable-hdpi/ans_wrong.png b/app/src/main/res/drawable-hdpi/ans_wrong.png
new file mode 100644
index 0000000..bfb1940
Binary files /dev/null and b/app/src/main/res/drawable-hdpi/ans_wrong.png differ
diff --git a/app/src/main/res/drawable-hdpi/chat.png b/app/src/main/res/drawable-hdpi/chat.png
new file mode 100644
index 0000000..41c7927
Binary files /dev/null and b/app/src/main/res/drawable-hdpi/chat.png differ
diff --git a/app/src/main/res/drawable-hdpi/confirm.png b/app/src/main/res/drawable-hdpi/confirm.png
new file mode 100644
index 0000000..be2a9b7
Binary files /dev/null and b/app/src/main/res/drawable-hdpi/confirm.png differ
diff --git a/app/src/main/res/drawable-hdpi/ic_login.png b/app/src/main/res/drawable-hdpi/ic_login.png
new file mode 100644
index 0000000..dad90f4
Binary files /dev/null and b/app/src/main/res/drawable-hdpi/ic_login.png differ
diff --git a/app/src/main/res/drawable-hdpi/ic_questions.png b/app/src/main/res/drawable-hdpi/ic_questions.png
new file mode 100644
index 0000000..8a20fac
Binary files /dev/null and b/app/src/main/res/drawable-hdpi/ic_questions.png differ
diff --git a/app/src/main/res/drawable-hdpi/ic_signup.png b/app/src/main/res/drawable-hdpi/ic_signup.png
new file mode 100644
index 0000000..d1e0626
Binary files /dev/null and b/app/src/main/res/drawable-hdpi/ic_signup.png differ
diff --git a/app/src/main/res/drawable-hdpi/quiz.png b/app/src/main/res/drawable-hdpi/quiz.png
new file mode 100644
index 0000000..c57bad3
Binary files /dev/null and b/app/src/main/res/drawable-hdpi/quiz.png differ
diff --git a/app/src/main/res/drawable-hdpi/score.png b/app/src/main/res/drawable-hdpi/score.png
new file mode 100644
index 0000000..caada4d
Binary files /dev/null and b/app/src/main/res/drawable-hdpi/score.png differ
diff --git a/app/src/main/res/drawable-hdpi/score1.png b/app/src/main/res/drawable-hdpi/score1.png
new file mode 100644
index 0000000..c64435f
Binary files /dev/null and b/app/src/main/res/drawable-hdpi/score1.png differ
diff --git a/app/src/main/res/drawable-hdpi/sub.png b/app/src/main/res/drawable-hdpi/sub.png
new file mode 100644
index 0000000..02419dc
Binary files /dev/null and b/app/src/main/res/drawable-hdpi/sub.png differ
diff --git a/app/src/main/res/drawable-hdpi/titolo.png b/app/src/main/res/drawable-hdpi/titolo.png
new file mode 100644
index 0000000..c277835
Binary files /dev/null and b/app/src/main/res/drawable-hdpi/titolo.png differ
diff --git a/app/src/main/res/drawable-hdpi/toastright.png b/app/src/main/res/drawable-hdpi/toastright.png
new file mode 100644
index 0000000..749d565
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diff --git a/app/src/main/res/drawable-hdpi/toastwrong.png b/app/src/main/res/drawable-hdpi/toastwrong.png
new file mode 100644
index 0000000..da0b07d
Binary files /dev/null and b/app/src/main/res/drawable-hdpi/toastwrong.png differ
diff --git a/app/src/main/res/drawable-hdpi/topic.png b/app/src/main/res/drawable-hdpi/topic.png
new file mode 100644
index 0000000..0263a55
Binary files /dev/null and b/app/src/main/res/drawable-hdpi/topic.png differ
diff --git a/app/src/main/res/drawable-mdpi/ans_corr.png b/app/src/main/res/drawable-mdpi/ans_corr.png
new file mode 100644
index 0000000..9120a15
Binary files /dev/null and b/app/src/main/res/drawable-mdpi/ans_corr.png differ
diff --git a/app/src/main/res/drawable-mdpi/ans_ques.png b/app/src/main/res/drawable-mdpi/ans_ques.png
new file mode 100644
index 0000000..21a3689
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diff --git a/app/src/main/res/drawable-mdpi/ans_wrong.png b/app/src/main/res/drawable-mdpi/ans_wrong.png
new file mode 100644
index 0000000..29fe540
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diff --git a/app/src/main/res/drawable-mdpi/chat.png b/app/src/main/res/drawable-mdpi/chat.png
new file mode 100644
index 0000000..d66d627
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diff --git a/app/src/main/res/drawable-mdpi/confirm.png b/app/src/main/res/drawable-mdpi/confirm.png
new file mode 100644
index 0000000..3b5b689
Binary files /dev/null and b/app/src/main/res/drawable-mdpi/confirm.png differ
diff --git a/app/src/main/res/drawable-mdpi/ic_login.png b/app/src/main/res/drawable-mdpi/ic_login.png
new file mode 100644
index 0000000..07a7af0
Binary files /dev/null and b/app/src/main/res/drawable-mdpi/ic_login.png differ
diff --git a/app/src/main/res/drawable-mdpi/ic_questions.png b/app/src/main/res/drawable-mdpi/ic_questions.png
new file mode 100644
index 0000000..e328b26
Binary files /dev/null and b/app/src/main/res/drawable-mdpi/ic_questions.png differ
diff --git a/app/src/main/res/drawable-mdpi/ic_signup.png b/app/src/main/res/drawable-mdpi/ic_signup.png
new file mode 100644
index 0000000..0f49d1b
Binary files /dev/null and b/app/src/main/res/drawable-mdpi/ic_signup.png differ
diff --git a/app/src/main/res/drawable-mdpi/quiz.png b/app/src/main/res/drawable-mdpi/quiz.png
new file mode 100644
index 0000000..915d6bc
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diff --git a/app/src/main/res/drawable-mdpi/score.png b/app/src/main/res/drawable-mdpi/score.png
new file mode 100644
index 0000000..4a7f848
Binary files /dev/null and b/app/src/main/res/drawable-mdpi/score.png differ
diff --git a/app/src/main/res/drawable-mdpi/score1.png b/app/src/main/res/drawable-mdpi/score1.png
new file mode 100644
index 0000000..a91e242
Binary files /dev/null and b/app/src/main/res/drawable-mdpi/score1.png differ
diff --git a/app/src/main/res/drawable-mdpi/sub.png b/app/src/main/res/drawable-mdpi/sub.png
new file mode 100644
index 0000000..ac23f0e
Binary files /dev/null and b/app/src/main/res/drawable-mdpi/sub.png differ
diff --git a/app/src/main/res/drawable-mdpi/titolo.png b/app/src/main/res/drawable-mdpi/titolo.png
new file mode 100644
index 0000000..7eb8385
Binary files /dev/null and b/app/src/main/res/drawable-mdpi/titolo.png differ
diff --git a/app/src/main/res/drawable-mdpi/toastright.png b/app/src/main/res/drawable-mdpi/toastright.png
new file mode 100644
index 0000000..c235a6c
Binary files /dev/null and b/app/src/main/res/drawable-mdpi/toastright.png differ
diff --git a/app/src/main/res/drawable-mdpi/toastwrong.png b/app/src/main/res/drawable-mdpi/toastwrong.png
new file mode 100644
index 0000000..f71b0df
Binary files /dev/null and b/app/src/main/res/drawable-mdpi/toastwrong.png differ
diff --git a/app/src/main/res/drawable-mdpi/topic.png b/app/src/main/res/drawable-mdpi/topic.png
new file mode 100644
index 0000000..43ebd90
Binary files /dev/null and b/app/src/main/res/drawable-mdpi/topic.png differ
diff --git a/app/src/main/res/drawable-xhdpi/ans_corr.png b/app/src/main/res/drawable-xhdpi/ans_corr.png
new file mode 100644
index 0000000..77276c7
Binary files /dev/null and b/app/src/main/res/drawable-xhdpi/ans_corr.png differ
diff --git a/app/src/main/res/drawable-xhdpi/ans_ques.png b/app/src/main/res/drawable-xhdpi/ans_ques.png
new file mode 100644
index 0000000..5cbf4e1
Binary files /dev/null and b/app/src/main/res/drawable-xhdpi/ans_ques.png differ
diff --git a/app/src/main/res/drawable-xhdpi/ans_wrong.png b/app/src/main/res/drawable-xhdpi/ans_wrong.png
new file mode 100644
index 0000000..6ac9d0d
Binary files /dev/null and b/app/src/main/res/drawable-xhdpi/ans_wrong.png differ
diff --git a/app/src/main/res/drawable-xhdpi/chat.png b/app/src/main/res/drawable-xhdpi/chat.png
new file mode 100644
index 0000000..a99c30d
Binary files /dev/null and b/app/src/main/res/drawable-xhdpi/chat.png differ
diff --git a/app/src/main/res/drawable-xhdpi/confirm.png b/app/src/main/res/drawable-xhdpi/confirm.png
new file mode 100644
index 0000000..1bef0c2
Binary files /dev/null and b/app/src/main/res/drawable-xhdpi/confirm.png differ
diff --git a/app/src/main/res/drawable-xhdpi/ic_login.png b/app/src/main/res/drawable-xhdpi/ic_login.png
new file mode 100644
index 0000000..ee19705
Binary files /dev/null and b/app/src/main/res/drawable-xhdpi/ic_login.png differ
diff --git a/app/src/main/res/drawable-xhdpi/ic_questions.png b/app/src/main/res/drawable-xhdpi/ic_questions.png
new file mode 100644
index 0000000..300849c
Binary files /dev/null and b/app/src/main/res/drawable-xhdpi/ic_questions.png differ
diff --git a/app/src/main/res/drawable-xhdpi/ic_signup.png b/app/src/main/res/drawable-xhdpi/ic_signup.png
new file mode 100644
index 0000000..90c6c59
Binary files /dev/null and b/app/src/main/res/drawable-xhdpi/ic_signup.png differ
diff --git a/app/src/main/res/drawable-xhdpi/quiz.png b/app/src/main/res/drawable-xhdpi/quiz.png
new file mode 100644
index 0000000..97a27a8
Binary files /dev/null and b/app/src/main/res/drawable-xhdpi/quiz.png differ
diff --git a/app/src/main/res/drawable-xhdpi/score.png b/app/src/main/res/drawable-xhdpi/score.png
new file mode 100644
index 0000000..c8eb25e
Binary files /dev/null and b/app/src/main/res/drawable-xhdpi/score.png differ
diff --git a/app/src/main/res/drawable-xhdpi/score1.png b/app/src/main/res/drawable-xhdpi/score1.png
new file mode 100644
index 0000000..daf8041
Binary files /dev/null and b/app/src/main/res/drawable-xhdpi/score1.png differ
diff --git a/app/src/main/res/drawable-xhdpi/sub.png b/app/src/main/res/drawable-xhdpi/sub.png
new file mode 100644
index 0000000..adaf6af
Binary files /dev/null and b/app/src/main/res/drawable-xhdpi/sub.png differ
diff --git a/app/src/main/res/drawable-xhdpi/titolo.png b/app/src/main/res/drawable-xhdpi/titolo.png
new file mode 100644
index 0000000..3ef2463
Binary files /dev/null and b/app/src/main/res/drawable-xhdpi/titolo.png differ
diff --git a/app/src/main/res/drawable-xhdpi/toastright.png b/app/src/main/res/drawable-xhdpi/toastright.png
new file mode 100644
index 0000000..d15bcdc
Binary files /dev/null and b/app/src/main/res/drawable-xhdpi/toastright.png differ
diff --git a/app/src/main/res/drawable-xhdpi/toastwrong.png b/app/src/main/res/drawable-xhdpi/toastwrong.png
new file mode 100644
index 0000000..91e149f
Binary files /dev/null and b/app/src/main/res/drawable-xhdpi/toastwrong.png differ
diff --git a/app/src/main/res/drawable-xhdpi/topic.png b/app/src/main/res/drawable-xhdpi/topic.png
new file mode 100644
index 0000000..da65d19
Binary files /dev/null and b/app/src/main/res/drawable-xhdpi/topic.png differ
diff --git a/app/src/main/res/drawable-xxhdpi/ans_corr.png b/app/src/main/res/drawable-xxhdpi/ans_corr.png
new file mode 100644
index 0000000..818cd87
Binary files /dev/null and b/app/src/main/res/drawable-xxhdpi/ans_corr.png differ
diff --git a/app/src/main/res/drawable-xxhdpi/ans_ques.png b/app/src/main/res/drawable-xxhdpi/ans_ques.png
new file mode 100644
index 0000000..e9f466a
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diff --git a/app/src/main/res/drawable-xxhdpi/ans_wrong.png b/app/src/main/res/drawable-xxhdpi/ans_wrong.png
new file mode 100644
index 0000000..e3822c9
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diff --git a/app/src/main/res/drawable-xxhdpi/chat.png b/app/src/main/res/drawable-xxhdpi/chat.png
new file mode 100644
index 0000000..e389c8e
Binary files /dev/null and b/app/src/main/res/drawable-xxhdpi/chat.png differ
diff --git a/app/src/main/res/drawable-xxhdpi/confirm.png b/app/src/main/res/drawable-xxhdpi/confirm.png
new file mode 100644
index 0000000..2161389
Binary files /dev/null and b/app/src/main/res/drawable-xxhdpi/confirm.png differ
diff --git a/app/src/main/res/drawable-xxhdpi/ic_login.png b/app/src/main/res/drawable-xxhdpi/ic_login.png
new file mode 100644
index 0000000..99ee1fe
Binary files /dev/null and b/app/src/main/res/drawable-xxhdpi/ic_login.png differ
diff --git a/app/src/main/res/drawable-xxhdpi/ic_questions.png b/app/src/main/res/drawable-xxhdpi/ic_questions.png
new file mode 100644
index 0000000..e8d6446
Binary files /dev/null and b/app/src/main/res/drawable-xxhdpi/ic_questions.png differ
diff --git a/app/src/main/res/drawable-xxhdpi/ic_signup.png b/app/src/main/res/drawable-xxhdpi/ic_signup.png
new file mode 100644
index 0000000..4cc99cd
Binary files /dev/null and b/app/src/main/res/drawable-xxhdpi/ic_signup.png differ
diff --git a/app/src/main/res/drawable-xxhdpi/quiz.png b/app/src/main/res/drawable-xxhdpi/quiz.png
new file mode 100644
index 0000000..dd1a260
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diff --git a/app/src/main/res/drawable-xxhdpi/score.png b/app/src/main/res/drawable-xxhdpi/score.png
new file mode 100644
index 0000000..986468d
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diff --git a/app/src/main/res/drawable-xxhdpi/score1.png b/app/src/main/res/drawable-xxhdpi/score1.png
new file mode 100644
index 0000000..c9797a2
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diff --git a/app/src/main/res/drawable-xxhdpi/sub.png b/app/src/main/res/drawable-xxhdpi/sub.png
new file mode 100644
index 0000000..29454bd
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diff --git a/app/src/main/res/drawable-xxhdpi/titolo.png b/app/src/main/res/drawable-xxhdpi/titolo.png
new file mode 100644
index 0000000..861cd59
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diff --git a/app/src/main/res/drawable-xxhdpi/toastright.png b/app/src/main/res/drawable-xxhdpi/toastright.png
new file mode 100644
index 0000000..0c64c9b
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diff --git a/app/src/main/res/drawable-xxhdpi/toastwrong.png b/app/src/main/res/drawable-xxhdpi/toastwrong.png
new file mode 100644
index 0000000..0522406
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diff --git a/app/src/main/res/drawable-xxhdpi/topic.png b/app/src/main/res/drawable-xxhdpi/topic.png
new file mode 100644
index 0000000..b4beb8a
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diff --git a/app/src/main/res/drawable/ans_corr.png b/app/src/main/res/drawable/ans_corr.png
deleted file mode 100644
index 81b5ca6..0000000
Binary files a/app/src/main/res/drawable/ans_corr.png and /dev/null differ
diff --git a/app/src/main/res/drawable/ans_ques.png b/app/src/main/res/drawable/ans_ques.png
deleted file mode 100644
index 1f22774..0000000
Binary files a/app/src/main/res/drawable/ans_ques.png and /dev/null differ
diff --git a/app/src/main/res/drawable/ans_wrong.png b/app/src/main/res/drawable/ans_wrong.png
deleted file mode 100644
index 07740f9..0000000
Binary files a/app/src/main/res/drawable/ans_wrong.png and /dev/null differ
diff --git a/app/src/main/res/drawable/chat.png b/app/src/main/res/drawable/chat.png
deleted file mode 100644
index f2185b2..0000000
Binary files a/app/src/main/res/drawable/chat.png and /dev/null differ
diff --git a/app/src/main/res/drawable/confirm.png b/app/src/main/res/drawable/confirm.png
deleted file mode 100644
index 4139cfd..0000000
Binary files a/app/src/main/res/drawable/confirm.png and /dev/null differ
diff --git a/app/src/main/res/drawable/ic_login.png b/app/src/main/res/drawable/ic_login.png
deleted file mode 100644
index e24772b..0000000
Binary files a/app/src/main/res/drawable/ic_login.png and /dev/null differ
diff --git a/app/src/main/res/drawable/ic_questions.png b/app/src/main/res/drawable/ic_questions.png
deleted file mode 100644
index 50c8931..0000000
Binary files a/app/src/main/res/drawable/ic_questions.png and /dev/null differ
diff --git a/app/src/main/res/drawable/ic_signup.png b/app/src/main/res/drawable/ic_signup.png
deleted file mode 100644
index 788401f..0000000
Binary files a/app/src/main/res/drawable/ic_signup.png and /dev/null differ
diff --git a/app/src/main/res/drawable/quiz.png b/app/src/main/res/drawable/quiz.png
deleted file mode 100644
index 4b61e89..0000000
Binary files a/app/src/main/res/drawable/quiz.png and /dev/null differ
diff --git a/app/src/main/res/drawable/score.png b/app/src/main/res/drawable/score.png
deleted file mode 100644
index f3f852f..0000000
Binary files a/app/src/main/res/drawable/score.png and /dev/null differ
diff --git a/app/src/main/res/drawable/score1.png b/app/src/main/res/drawable/score1.png
deleted file mode 100644
index 0f72e03..0000000
Binary files a/app/src/main/res/drawable/score1.png and /dev/null differ
diff --git a/app/src/main/res/drawable/sub.png b/app/src/main/res/drawable/sub.png
deleted file mode 100644
index bee4569..0000000
Binary files a/app/src/main/res/drawable/sub.png and /dev/null differ
diff --git a/app/src/main/res/drawable/titolo.png b/app/src/main/res/drawable/titolo.png
deleted file mode 100644
index 740edba..0000000
Binary files a/app/src/main/res/drawable/titolo.png and /dev/null differ
diff --git a/app/src/main/res/drawable/toastright.png b/app/src/main/res/drawable/toastright.png
deleted file mode 100644
index eaa202b..0000000
Binary files a/app/src/main/res/drawable/toastright.png and /dev/null differ
diff --git a/app/src/main/res/drawable/toastwrong.png b/app/src/main/res/drawable/toastwrong.png
deleted file mode 100644
index a882495..0000000
Binary files a/app/src/main/res/drawable/toastwrong.png and /dev/null differ
diff --git a/app/src/main/res/drawable/topic.png b/app/src/main/res/drawable/topic.png
deleted file mode 100644
index 19272a0..0000000
Binary files a/app/src/main/res/drawable/topic.png and /dev/null differ
diff --git a/app/src/main/res/layout-port/activity_argument__page.xml b/app/src/main/res/layout-port/activity_argument__page.xml
index 753e2c6..5471c55 100644
--- a/app/src/main/res/layout-port/activity_argument__page.xml
+++ b/app/src/main/res/layout-port/activity_argument__page.xml
@@ -20,6 +20,7 @@
         android:background="@drawable/confirm"
         android:id="@+id/Confirm"
         android:layout_gravity="right"
-        android:onClick="toWelcome" />
+        android:onClick="toWelcome"
+        android:contentDescription="" />
 
 </LinearLayout>
\ No newline at end of file
diff --git a/settings.gradle b/settings.gradle
index e7b4def..8cfc6e8 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1 +1 @@
-include ':app'
+include ':app', ':MQA-Android-2.7.4'