From 5ed7b5542a1b3e17aad27bcfdbc8181a59ae5e83 Mon Sep 17 00:00:00 2001
From: ErikWaegerle <erikwaegerle@Eriks-MBP.fritz.box>
Date: Mon, 25 May 2020 19:42:42 +0200
Subject: [PATCH 1/7] Customization of the icon in the NavigationDrawer menu

---
 app/src/main/res/menu/menu_drawer_main.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/src/main/res/menu/menu_drawer_main.xml b/app/src/main/res/menu/menu_drawer_main.xml
index 065b116..f8e8a43 100644
--- a/app/src/main/res/menu/menu_drawer_main.xml
+++ b/app/src/main/res/menu/menu_drawer_main.xml
@@ -5,7 +5,7 @@
         android:checkableBehavior="all">
         <item android:id="@+id/nav_newgame_main" android:icon="@drawable/ic_menu_home"
             android:title="@string/menu_main" />
-        <item android:id="@+id/nav_dailySudoku_main" android:icon="@drawable/ic_menu_home"
+        <item android:id="@+id/nav_dailySudoku_main" android:icon="@drawable/ic_menu_daily_sudoku"
             android:title="Daily Sudoku" /> 
         <item android:id="@+id/nav_highscore_main" android:icon="@android:drawable/ic_menu_myplaces"
             android:title="@string/menu_highscore" />

From 514750650d04cb094b2560f3865110d905f4608e Mon Sep 17 00:00:00 2001
From: ErikWaegerle <erikwaegerle@Eriks-MBP.fritz.box>
Date: Mon, 25 May 2020 19:47:34 +0200
Subject: [PATCH 2/7] Inserting a new activity in the Manifest for the Daily
 Sudoku.

---
 app/src/main/AndroidManifest.xml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index c929de3..a1cc005 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -30,6 +30,11 @@
             android:label="@string/app_name"
             android:theme="@style/AppTheme.NoActionBar">
         </activity>
+        <activity
+            android:name="org.secuso.privacyfriendlysudoku.ui.view.DailySudokuActivity"
+            android:label="@string/Sudoku"
+            android:theme="@style/AppTheme.NoActionBar">
+        </activity>
         <activity
             android:name="org.secuso.privacyfriendlysudoku.ui.SettingsActivity"
             android:label="@string/title_activity_settings"

From e10746822d3d203afe2c5b520069aaaae2e519d3 Mon Sep 17 00:00:00 2001
From: ErikWaegerle <erikwaegerle@Eriks-MBP.fritz.box>
Date: Mon, 25 May 2020 20:04:02 +0200
Subject: [PATCH 3/7] Extension of the method goToNavigateItem() with
 dailySudoku Item. Adds NavigationDrawer functionality.

---
 .../org/secuso/privacyfriendlysudoku/ui/MainActivity.java   | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/app/src/main/java/org/secuso/privacyfriendlysudoku/ui/MainActivity.java b/app/src/main/java/org/secuso/privacyfriendlysudoku/ui/MainActivity.java
index 70878d3..4a378c4 100644
--- a/app/src/main/java/org/secuso/privacyfriendlysudoku/ui/MainActivity.java
+++ b/app/src/main/java/org/secuso/privacyfriendlysudoku/ui/MainActivity.java
@@ -30,6 +30,7 @@ import org.secuso.privacyfriendlysudoku.controller.NewLevelManager;
 import org.secuso.privacyfriendlysudoku.controller.helper.GameInfoContainer;
 import org.secuso.privacyfriendlysudoku.game.GameDifficulty;
 import org.secuso.privacyfriendlysudoku.game.GameType;
+import org.secuso.privacyfriendlysudoku.ui.view.DailySudokuActivity;
 import org.secuso.privacyfriendlysudoku.ui.view.R;
 
 import java.util.LinkedList;
@@ -330,6 +331,11 @@ public class MainActivity extends BaseActivity implements NavigationView.OnNavig
                 overridePendingTransition(0, 0);
                 break;
 
+            case R.id.nav_dailySudoku_main:
+                intent = new Intent(this, DailySudokuActivity.class);
+                startActivity(intent);
+                break;
+
             default:
         }
         return true;

From dd9a66eb8cdcf160234d9a4268d253de2bcf99e9 Mon Sep 17 00:00:00 2001
From: ErikWaegerle <erikwaegerle@Eriks-MBP.fritz.box>
Date: Mon, 25 May 2020 20:12:50 +0200
Subject: [PATCH 4/7] 1.) Creating a Daily Sudoku Activity XML 2.) Adaptation
 of the layout 3.) Inserting the app and toolbar into the layout 4.) Use the
 layout of fragment_stats.xml 5.) Adaptation and modification of the layout
 see Mockup 3

---
 .../main/res/layout/activity_daily_sudoku.xml | 417 ++++++++++++++++++
 1 file changed, 417 insertions(+)
 create mode 100644 app/src/main/res/layout/activity_daily_sudoku.xml

diff --git a/app/src/main/res/layout/activity_daily_sudoku.xml b/app/src/main/res/layout/activity_daily_sudoku.xml
new file mode 100644
index 0000000..16983d5
--- /dev/null
+++ b/app/src/main/res/layout/activity_daily_sudoku.xml
@@ -0,0 +1,417 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    app:statusBarBackground="?attr/colorPrimary"
+    android:fitsSystemWindows="true"
+    android:orientation="vertical">
+
+    <com.google.android.material.appbar.AppBarLayout
+        android:id="@+id/appbar"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:clipChildren="false"
+        android:theme="@style/AppTheme.AppBarOverlay">
+
+        <androidx.appcompat.widget.Toolbar
+            android:id="@+id/toolbar"
+            android:layout_width="match_parent"
+            android:layout_height="?attr/actionBarSize"
+            android:background="?attr/colorPrimary"
+            app:popupTheme="@style/AppTheme.PopupOverlay"
+            android:clipChildren="false"
+            app:layout_scrollFlags="enterAlways">
+
+        </androidx.appcompat.widget.Toolbar>
+
+    </com.google.android.material.appbar.AppBarLayout>
+
+
+
+<LinearLayout
+    android:layout_width="match_parent"
+        android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
+        android:paddingRight="@dimen/activity_horizontal_margin"
+        android:paddingTop="@dimen/activity_vertical_margin"
+        android:paddingBottom="@dimen/activity_vertical_margin"
+        android:weightSum="10"
+        android:orientation="vertical"
+        tools:context="org.secuso.privacyfriendlysudoku.ui.StatsActivity$PlaceholderFragment">
+
+        <LinearLayout
+            android:layout_width="fill_parent"
+            android:layout_height="0dp"
+            android:layout_weight="4"
+            android:weightSum="5">
+
+            <ImageView
+                android:id="@+id/statistic_image"
+                android:layout_width="0dp"
+                android:layout_height="fill_parent"
+                android:layout_gravity="center"
+                android:layout_weight="1.8"
+                android:adjustViewBounds="true"
+                android:src="@drawable/icon_default_9x9" />
+            <RelativeLayout
+                android:layout_width="0dp"
+                android:layout_height="match_parent"
+                android:layout_weight="1">
+                <View
+                    android:layout_width="2dp"
+                    android:layout_height="match_parent"
+                    android:layout_gravity="center_vertical"
+                    android:foregroundGravity="center_vertical"
+                    android:layout_centerVertical="true"
+                    android:layout_centerHorizontal="true"
+                    android:background="@color/colorPrimary"
+                    android:layout_marginTop="@dimen/activity_horizontal_margin"
+                    android:layout_marginBottom="@dimen/activity_horizontal_margin"/>
+
+            </RelativeLayout>
+            <LinearLayout
+                android:layout_width="0dp"
+                android:layout_height="fill_parent"
+                android:weightSum="6"
+                android:layout_weight="2"
+                android:orientation="vertical"
+                android:paddingTop="@dimen/activity_horizontal_margin">
+                <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_gravity="center"
+                    android:text="@string/number_of_hints"
+                    android:layout_weight="1"/>
+                <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_gravity="center"
+                    android:text="0"
+                    android:id="@+id/numb_of_hints"
+                    android:layout_weight="1"/>
+                <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_gravity="center"
+                    android:text="@string/number_of_games"
+                    android:layout_weight="1"/>
+                <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_gravity="center"
+                    android:text="0"
+                    android:id="@+id/numb_of_total_games"
+                    android:layout_weight="1"/>
+                <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_gravity="center"
+                    android:text="@string/total_of_time"
+                    android:layout_weight="1"/>
+                <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_gravity="center"
+                    android:text="0"
+                    android:id="@+id/numb_of_total_time"
+                    android:layout_weight="1"/>
+            </LinearLayout>
+        </LinearLayout>
+
+
+        <LinearLayout
+            android:layout_width="fill_parent"
+            android:layout_height="0dp"
+            android:layout_weight="1">
+            <View
+                android:layout_width="match_parent"
+                android:layout_height="2dp"
+                android:layout_gravity="center_vertical"
+                android:foregroundGravity="center_vertical"
+                android:layout_centerVertical="true"
+                android:layout_centerHorizontal="true"
+                android:background="@color/colorPrimary" />
+
+        </LinearLayout>
+
+        <LinearLayout
+            android:layout_width="fill_parent"
+            android:layout_height="0dp"
+            android:layout_weight="4"
+            android:weightSum="4"
+            android:orientation="vertical">
+            <!-- ### first row -->
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="0dp"
+                android:layout_weight="1"
+                android:weightSum="3">
+
+                <RelativeLayout
+                    android:layout_width="0dp"
+                    android:layout_height="fill_parent"
+                    android:layout_marginTop="10dp"
+                    android:layout_weight="0.7"
+                    android:gravity="center_vertical">
+
+                    <ImageView
+                        android:id="@+id/statistic_image2"
+                        android:layout_width="180dp"
+                        android:layout_height="fill_parent"
+                        android:layout_gravity="center"
+                        android:layout_weight="2"
+                        android:adjustViewBounds="true"
+                        android:src="@drawable/icon_default_9x9" />
+                </RelativeLayout>
+
+                <RelativeLayout
+                    android:layout_width="0dp"
+                    android:layout_height="fill_parent"
+                    android:layout_weight="1"
+                    android:gravity="center_vertical">
+                    <RatingBar
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:numStars="3"
+                        android:layout_gravity="center"
+                        android:id="@+id/first_diff_bar"
+                        android:layout_below="@+id/first_diff_text"
+                        style="?android:attr/ratingBarStyleSmall"/>
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="diffi"
+                        android:id="@+id/first_diff_text"
+                        android:gravity="center_vertical"/>
+                </RelativeLayout>
+
+                <RelativeLayout
+                    android:layout_width="0dp"
+                    android:layout_height="fill_parent"
+                    android:layout_weight="1"
+                    android:gravity="center_vertical">
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="@string/min_time"
+                        android:id="@+id/first_min_text"/>
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="0"
+                        android:id="@+id/first_min_time"
+                        android:gravity="center_vertical"
+                        android:layout_below="@+id/first_min_text"/>
+                </RelativeLayout>
+
+            </LinearLayout>
+            <!-- ### second row -->
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="0dp"
+                android:layout_weight="1"
+                android:weightSum="3">
+
+                <RelativeLayout
+                    android:layout_width="0dp"
+                    android:layout_height="fill_parent"
+                    android:layout_weight="0.7"
+                    android:gravity="center_vertical">
+
+                    <ImageView
+                        android:id="@+id/statistic_image6"
+                        android:layout_width="180dp"
+                        android:layout_height="fill_parent"
+                        android:layout_gravity="center"
+                        android:layout_marginTop="10dp"
+                        android:layout_weight="0.7"
+                        android:adjustViewBounds="true"
+                        android:src="@drawable/icon_default_9x9" />
+                </RelativeLayout>
+
+                <RelativeLayout
+                    android:layout_width="0dp"
+                    android:layout_height="fill_parent"
+                    android:layout_weight="1"
+                    android:gravity="center_vertical">
+                    <RatingBar
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:numStars="3"
+                        android:layout_gravity="center"
+                        android:id="@+id/second_diff_bar"
+                        android:layout_below="@+id/second_diff_text"
+                        style="?android:attr/ratingBarStyleSmall"/>
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="diffi"
+                        android:id="@+id/second_diff_text"
+                        android:gravity="center_vertical"/>
+                </RelativeLayout>
+
+                <RelativeLayout
+                    android:layout_width="0dp"
+                    android:layout_height="fill_parent"
+                    android:layout_weight="1"
+                    android:gravity="center_vertical">
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="@string/min_time"
+                        android:id="@+id/second_min_text"/>
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="0"
+                        android:id="@+id/second_min_time"
+                        android:gravity="center_vertical"
+                        android:layout_below="@+id/second_min_text"/>
+                </RelativeLayout>
+            </LinearLayout>
+
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="0dp"
+                android:layout_weight="1">
+
+                <RelativeLayout
+                    android:layout_width="0dp"
+                    android:layout_height="fill_parent"
+                    android:layout_weight="0.7"
+                    android:gravity="center_vertical">
+
+                    <ImageView
+                        android:id="@+id/statistic_image7"
+                        android:layout_width="180dp"
+                        android:layout_height="fill_parent"
+                        android:layout_gravity="center"
+                        android:layout_marginTop="10dp"
+                        android:adjustViewBounds="true"
+                        android:src="@drawable/icon_default_9x9" />
+                </RelativeLayout>
+
+                <RelativeLayout
+                    android:layout_width="0dp"
+                    android:layout_height="fill_parent"
+                    android:layout_weight="1"
+                    android:gravity="center_vertical">
+                    <RatingBar
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:numStars="3"
+                        android:layout_gravity="center"
+                        android:id="@+id/third_diff_bar"
+                        android:layout_below="@+id/third_diff_text"
+                        style="?android:attr/ratingBarStyleSmall"/>
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="diffi"
+                        android:id="@+id/third_diff_text"
+                        android:gravity="center_vertical"/>
+                </RelativeLayout>
+
+                <RelativeLayout
+                    android:layout_width="0dp"
+                    android:layout_height="fill_parent"
+                    android:layout_weight="1"
+                    android:gravity="center_vertical">
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="@string/min_time"
+                        android:id="@+id/third_min_text"/>
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="0"
+                        android:id="@+id/third_min_time"
+                        android:gravity="center_vertical"
+                        android:layout_below="@+id/third_min_text"/>
+                </RelativeLayout>
+
+            </LinearLayout>
+
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="0dp"
+                android:layout_weight="1">
+
+                <RelativeLayout
+                    android:layout_width="0dp"
+                    android:layout_height="fill_parent"
+                    android:layout_weight="0.7"
+                    android:gravity="center_vertical">
+
+                    <ImageView
+                        android:id="@+id/statistic_image8"
+                        android:layout_width="180dp"
+                        android:layout_height="fill_parent"
+                        android:layout_gravity="center"
+                        android:layout_marginTop="10dp"
+                        android:layout_weight="0.7"
+                        android:adjustViewBounds="true"
+                        android:src="@drawable/icon_default_9x9" />
+                </RelativeLayout>
+
+                <RelativeLayout
+                    android:layout_width="0dp"
+                    android:layout_height="fill_parent"
+                    android:layout_weight="1"
+                    android:gravity="center_vertical">
+                    <RatingBar
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:numStars="3"
+                        android:layout_gravity="center"
+                        android:id="@+id/fourth_diff_bar"
+                        android:layout_below="@+id/fourth_diff_text"
+                        style="?android:attr/ratingBarStyleSmall"/>
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="diffi"
+                        android:id="@+id/fourth_diff_text"
+                        android:gravity="center_vertical"/>
+                </RelativeLayout>
+
+                <RelativeLayout
+                    android:layout_width="0dp"
+                    android:layout_height="fill_parent"
+                    android:layout_weight="1"
+                    android:gravity="center_vertical">
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="@string/min_time"
+                        android:id="@+id/fourth_min_text"/>
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="0"
+                        android:id="@+id/fourth_min_time"
+                        android:gravity="center_vertical"
+                        android:layout_below="@+id/fourth_min_text"/>
+                </RelativeLayout>
+
+            </LinearLayout>
+
+        </LinearLayout>
+
+
+    </LinearLayout>
+
+    <androidx.viewpager.widget.ViewPager
+        android:id="@+id/main_content"
+        android:layout_width="fill_parent"
+        android:layout_height="fill_parent"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior" />
+
+
+</LinearLayout>
\ No newline at end of file

From f9744bc894190016eb8b8714b83c7bfcf045bcf1 Mon Sep 17 00:00:00 2001
From: ErikWaegerle <erikwaegerle@Eriks-MBP.fritz.box>
Date: Mon, 25 May 2020 20:16:16 +0200
Subject: [PATCH 5/7] Embedding a vector graphic for the tab "Daily Sudoku" in
 the NavigationDrawer menu

---
 app/src/main/res/drawable/ic_menu_daily_sudoku.xml | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 app/src/main/res/drawable/ic_menu_daily_sudoku.xml

diff --git a/app/src/main/res/drawable/ic_menu_daily_sudoku.xml b/app/src/main/res/drawable/ic_menu_daily_sudoku.xml
new file mode 100644
index 0000000..2239a4f
--- /dev/null
+++ b/app/src/main/res/drawable/ic_menu_daily_sudoku.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M11.99,2C6.47,2 2,6.48 2,12s4.47,10 9.99,10C17.52,22 22,17.52 22,12S17.52,2 11.99,2zM12,20c-4.42,0 -8,-3.58 -8,-8s3.58,-8 8,-8 8,3.58 8,8 -3.58,8 -8,8zM12.5,7H11v6l5.25,3.15 0.75,-1.23 -4.5,-2.67z"/>
+</vector>

From 5d620829c446378f0fc52c55a11011cbe46cab0e Mon Sep 17 00:00:00 2001
From: ErikWaegerle <erikwaegerle@Eriks-MBP.fritz.box>
Date: Mon, 25 May 2020 20:21:12 +0200
Subject: [PATCH 6/7] 1.) Creating the class DailySudokuActivity 2.)
 Implementing the onCreate() method

---
 .../ui/view/DailySudokuActivity.java          | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 app/src/main/java/org/secuso/privacyfriendlysudoku/ui/view/DailySudokuActivity.java

diff --git a/app/src/main/java/org/secuso/privacyfriendlysudoku/ui/view/DailySudokuActivity.java b/app/src/main/java/org/secuso/privacyfriendlysudoku/ui/view/DailySudokuActivity.java
new file mode 100644
index 0000000..96aeba9
--- /dev/null
+++ b/app/src/main/java/org/secuso/privacyfriendlysudoku/ui/view/DailySudokuActivity.java
@@ -0,0 +1,32 @@
+package org.secuso.privacyfriendlysudoku.ui.view;
+
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.widget.Toolbar;
+import org.secuso.privacyfriendlysudoku.controller.helper.GameInfoContainer;
+import java.util.List;
+
+public class DailySudokuActivity extends AppCompatActivity {
+
+    List<GameInfoContainer> loadableGameList;
+    SharedPreferences settings;
+
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        setContentView(R.layout.activity_daily_sudoku);
+        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
+        setSupportActionBar(toolbar);
+
+
+        androidx.appcompat.app.ActionBar actionBar = getSupportActionBar();
+        actionBar.setTitle("Daily Sudoku");
+        actionBar.setDisplayHomeAsUpEnabled(true);
+
+
+
+    }
+}
\ No newline at end of file

From b41ff4b238b7740984eb9862e2a4123dbfd84819 Mon Sep 17 00:00:00 2001
From: ErikWaegerle <erikwaegerle@Eriks-MBP.fritz.box>
Date: Tue, 26 May 2020 01:13:13 +0200
Subject: [PATCH 7/7] Changes to the layout 1.) Increase the number of stars to
 4 2.) Creation of the button "Start DailySudoku" 3.) Positioning of the
 individual elements in the layout

---
 .../main/res/layout/activity_daily_sudoku.xml | 850 ++++++++++--------
 1 file changed, 479 insertions(+), 371 deletions(-)

diff --git a/app/src/main/res/layout/activity_daily_sudoku.xml b/app/src/main/res/layout/activity_daily_sudoku.xml
index 16983d5..18bfd7d 100644
--- a/app/src/main/res/layout/activity_daily_sudoku.xml
+++ b/app/src/main/res/layout/activity_daily_sudoku.xml
@@ -1,417 +1,525 @@
 <?xml version="1.0" encoding="utf-8"?>
 
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/linearLayout5"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    app:statusBarBackground="?attr/colorPrimary"
     android:fitsSystemWindows="true"
-    android:orientation="vertical">
+    app:statusBarBackground="?attr/colorPrimary">
 
-    <com.google.android.material.appbar.AppBarLayout
-        android:id="@+id/appbar"
-        android:layout_width="match_parent"
+    <LinearLayout
+        android:id="@+id/linearLayout6"
+        android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:clipChildren="false"
-        android:theme="@style/AppTheme.AppBarOverlay">
-
-        <androidx.appcompat.widget.Toolbar
-            android:id="@+id/toolbar"
-            android:layout_width="match_parent"
-            android:layout_height="?attr/actionBarSize"
-            android:background="?attr/colorPrimary"
-            app:popupTheme="@style/AppTheme.PopupOverlay"
-            android:clipChildren="false"
-            app:layout_scrollFlags="enterAlways">
-
-        </androidx.appcompat.widget.Toolbar>
-
-    </com.google.android.material.appbar.AppBarLayout>
-
-
-
-<LinearLayout
-    android:layout_width="match_parent"
-        android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
-        android:paddingRight="@dimen/activity_horizontal_margin"
-        android:paddingTop="@dimen/activity_vertical_margin"
-        android:paddingBottom="@dimen/activity_vertical_margin"
-        android:weightSum="10"
         android:orientation="vertical"
-        tools:context="org.secuso.privacyfriendlysudoku.ui.StatsActivity$PlaceholderFragment">
+        app:layout_constraintBottom_toTopOf="@+id/main_content"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent">
+
+        <com.google.android.material.appbar.AppBarLayout
+            android:id="@+id/appbar"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:clipChildren="false"
+            android:theme="@style/AppTheme.AppBarOverlay">
+
+            <androidx.appcompat.widget.Toolbar
+                android:id="@+id/toolbar"
+                android:layout_width="match_parent"
+                android:layout_height="?attr/actionBarSize"
+                android:background="?attr/colorPrimary"
+                android:clipChildren="false"
+                app:layout_scrollFlags="enterAlways"
+                app:popupTheme="@style/AppTheme.PopupOverlay">
+
+            </androidx.appcompat.widget.Toolbar>
+
+        </com.google.android.material.appbar.AppBarLayout>
 
         <LinearLayout
-            android:layout_width="fill_parent"
-            android:layout_height="0dp"
-            android:layout_weight="4"
-            android:weightSum="5">
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:orientation="vertical"
+            android:paddingLeft="@dimen/activity_horizontal_margin"
+            android:paddingTop="@dimen/activity_vertical_margin"
+            android:paddingRight="@dimen/activity_horizontal_margin"
+            android:paddingBottom="@dimen/activity_vertical_margin"
+            android:weightSum="10"
+            tools:context="org.secuso.privacyfriendlysudoku.ui.StatsActivity$PlaceholderFragment">
 
-            <ImageView
-                android:id="@+id/statistic_image"
-                android:layout_width="0dp"
-                android:layout_height="fill_parent"
-                android:layout_gravity="center"
-                android:layout_weight="1.8"
-                android:adjustViewBounds="true"
-                android:src="@drawable/icon_default_9x9" />
-            <RelativeLayout
-                android:layout_width="0dp"
-                android:layout_height="match_parent"
-                android:layout_weight="1">
-                <View
-                    android:layout_width="2dp"
+            <LinearLayout
+                android:layout_width="fill_parent"
+                android:layout_height="0dp"
+                android:layout_weight="4"
+                android:weightSum="5">
+
+                <LinearLayout
+                    android:layout_width="0dp"
+                    android:layout_height="fill_parent"
+                    android:layout_weight="2.0"
+                    android:orientation="vertical">
+
+                    <ImageView
+                        android:id="@+id/statistic_image"
+                        android:layout_width="match_parent"
+                        android:layout_height="fill_parent"
+                        android:layout_gravity="center|start|center_horizontal|left"
+                        android:layout_weight="2.0"
+                        android:adjustViewBounds="true"
+                        android:src="@drawable/icon_default_9x9" />
+
+                    <RelativeLayout
+                        android:layout_width="match_parent"
+                        android:layout_height="fill_parent"
+                        android:layout_weight="3.0"
+                        android:gravity="center_horizontal">
+
+                        <RatingBar
+                            android:id="@+id/first_diff_bar"
+                            style="?android:attr/ratingBarStyleSmall"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_below="@+id/first_diff_text"
+                            android:layout_gravity="start|right|center_horizontal"
+                            android:numStars="4"
+                            android:rating="2" />
+
+                        <TextView
+                            android:id="@+id/first_diff_text"
+                            android:layout_width="42dp"
+                            android:layout_height="30dp"
+                            android:gravity="bottom|center|center_horizontal"
+                            android:text="diffi"
+                            android:textSize="22dp" />
+                    </RelativeLayout>
+
+                </LinearLayout>
+
+                <RelativeLayout
+                    android:layout_width="0dp"
                     android:layout_height="match_parent"
-                    android:layout_gravity="center_vertical"
-                    android:foregroundGravity="center_vertical"
-                    android:layout_centerVertical="true"
+                    android:layout_weight="1">
+
+                    <View
+                        android:layout_width="2dp"
+                        android:layout_height="match_parent"
+                        android:layout_centerHorizontal="true"
+                        android:layout_centerVertical="true"
+                        android:layout_gravity="center_vertical"
+                        android:layout_marginTop="@dimen/activity_horizontal_margin"
+                        android:layout_marginBottom="@dimen/activity_horizontal_margin"
+                        android:background="@color/colorPrimary"
+                        android:foregroundGravity="center_vertical" />
+
+                </RelativeLayout>
+
+                <LinearLayout
+                    android:layout_width="2dp"
+                    android:layout_height="fill_parent"
+                    android:layout_weight="2"
+                    android:orientation="vertical"
+                    android:paddingTop="@dimen/activity_horizontal_margin"
+                    android:weightSum="6">
+
+                    <LinearLayout
+                        android:layout_width="match_parent"
+                        android:layout_height="match_parent"
+                        android:layout_weight="1.0"
+                        android:orientation="vertical"
+                        android:paddingTop="@dimen/activity_horizontal_margin"
+                        android:weightSum="6">
+
+                        <TextView
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_gravity="center"
+                            android:layout_marginBottom="0dp"
+                            android:layout_weight="1"
+                            android:text="@string/number_of_hints" />
+
+                        <TextView
+                            android:id="@+id/numb_of_hints"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_gravity="center"
+                            android:layout_marginBottom="0dp"
+                            android:layout_weight="1"
+                            android:text="0" />
+
+                        <TextView
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_gravity="center"
+                            android:layout_weight="1"
+                            android:text="@string/number_of_games" />
+
+                        <TextView
+                            android:id="@+id/numb_of_total_games"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_gravity="center"
+                            android:layout_weight="1"
+                            android:text="0" />
+
+                        <TextView
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_gravity="center"
+                            android:layout_weight="1"
+                            android:text="@string/total_of_time" />
+
+                        <TextView
+                            android:id="@+id/numb_of_total_time"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_gravity="center"
+                            android:layout_weight="1"
+                            android:text="0" />
+                    </LinearLayout>
+
+                    <LinearLayout
+                        android:layout_width="match_parent"
+                        android:layout_height="300dp"
+                        android:orientation="vertical"
+                        android:paddingTop="@dimen/activity_horizontal_margin"
+                        android:weightSum="6">
+
+                    </LinearLayout>
+
+
+                </LinearLayout>
+            </LinearLayout>
+
+
+            <LinearLayout
+                android:layout_width="fill_parent"
+                android:layout_height="0dp"
+                android:layout_weight="1.0">
+
+                <View
+                    android:layout_width="match_parent"
+                    android:layout_height="2dp"
                     android:layout_centerHorizontal="true"
+                    android:layout_centerVertical="true"
+                    android:layout_gravity="center_vertical"
                     android:background="@color/colorPrimary"
-                    android:layout_marginTop="@dimen/activity_horizontal_margin"
-                    android:layout_marginBottom="@dimen/activity_horizontal_margin"/>
+                    android:foregroundGravity="center_vertical" />
+
+            </LinearLayout>
 
-            </RelativeLayout>
             <LinearLayout
-                android:layout_width="0dp"
-                android:layout_height="fill_parent"
-                android:weightSum="6"
-                android:layout_weight="2"
+                android:layout_width="fill_parent"
+                android:layout_height="0dp"
+                android:layout_weight="4"
                 android:orientation="vertical"
-                android:paddingTop="@dimen/activity_horizontal_margin">
-                <TextView
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:layout_gravity="center"
-                    android:text="@string/number_of_hints"
-                    android:layout_weight="1"/>
-                <TextView
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:layout_gravity="center"
-                    android:text="0"
-                    android:id="@+id/numb_of_hints"
-                    android:layout_weight="1"/>
-                <TextView
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:layout_gravity="center"
-                    android:text="@string/number_of_games"
-                    android:layout_weight="1"/>
-                <TextView
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:layout_gravity="center"
-                    android:text="0"
-                    android:id="@+id/numb_of_total_games"
-                    android:layout_weight="1"/>
-                <TextView
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:layout_gravity="center"
-                    android:text="@string/total_of_time"
-                    android:layout_weight="1"/>
-                <TextView
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:layout_gravity="center"
-                    android:text="0"
-                    android:id="@+id/numb_of_total_time"
-                    android:layout_weight="1"/>
-            </LinearLayout>
-        </LinearLayout>
-
-
-        <LinearLayout
-            android:layout_width="fill_parent"
-            android:layout_height="0dp"
-            android:layout_weight="1">
-            <View
-                android:layout_width="match_parent"
-                android:layout_height="2dp"
-                android:layout_gravity="center_vertical"
-                android:foregroundGravity="center_vertical"
-                android:layout_centerVertical="true"
-                android:layout_centerHorizontal="true"
-                android:background="@color/colorPrimary" />
-
-        </LinearLayout>
-
-        <LinearLayout
-            android:layout_width="fill_parent"
-            android:layout_height="0dp"
-            android:layout_weight="4"
-            android:weightSum="4"
-            android:orientation="vertical">
-            <!-- ### first row -->
-            <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="0dp"
-                android:layout_weight="1"
-                android:weightSum="3">
-
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
-                    android:layout_marginTop="10dp"
-                    android:layout_weight="0.7"
-                    android:gravity="center_vertical">
-
-                    <ImageView
-                        android:id="@+id/statistic_image2"
-                        android:layout_width="180dp"
-                        android:layout_height="fill_parent"
-                        android:layout_gravity="center"
-                        android:layout_weight="2"
-                        android:adjustViewBounds="true"
-                        android:src="@drawable/icon_default_9x9" />
-                </RelativeLayout>
-
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
+                android:weightSum="4">
+                <!-- ### first row -->
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="0dp"
                     android:layout_weight="1"
-                    android:gravity="center_vertical">
-                    <RatingBar
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:numStars="3"
-                        android:layout_gravity="center"
-                        android:id="@+id/first_diff_bar"
-                        android:layout_below="@+id/first_diff_text"
-                        style="?android:attr/ratingBarStyleSmall"/>
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="diffi"
-                        android:id="@+id/first_diff_text"
-                        android:gravity="center_vertical"/>
-                </RelativeLayout>
+                    android:weightSum="3">
 
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
-                    android:layout_weight="1"
-                    android:gravity="center_vertical">
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="@string/min_time"
-                        android:id="@+id/first_min_text"/>
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="0"
-                        android:id="@+id/first_min_time"
-                        android:gravity="center_vertical"
-                        android:layout_below="@+id/first_min_text"/>
-                </RelativeLayout>
-
-            </LinearLayout>
-            <!-- ### second row -->
-            <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="0dp"
-                android:layout_weight="1"
-                android:weightSum="3">
-
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
-                    android:layout_weight="0.7"
-                    android:gravity="center_vertical">
-
-                    <ImageView
-                        android:id="@+id/statistic_image6"
-                        android:layout_width="180dp"
+                    <RelativeLayout
+                        android:layout_width="0dp"
                         android:layout_height="fill_parent"
-                        android:layout_gravity="center"
                         android:layout_marginTop="10dp"
                         android:layout_weight="0.7"
-                        android:adjustViewBounds="true"
-                        android:src="@drawable/icon_default_9x9" />
-                </RelativeLayout>
+                        android:gravity="center_vertical">
 
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
-                    android:layout_weight="1"
-                    android:gravity="center_vertical">
-                    <RatingBar
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:numStars="3"
-                        android:layout_gravity="center"
-                        android:id="@+id/second_diff_bar"
-                        android:layout_below="@+id/second_diff_text"
-                        style="?android:attr/ratingBarStyleSmall"/>
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="diffi"
-                        android:id="@+id/second_diff_text"
-                        android:gravity="center_vertical"/>
-                </RelativeLayout>
+                        <ImageView
+                            android:id="@+id/statistic_image2"
+                            android:layout_width="180dp"
+                            android:layout_height="fill_parent"
+                            android:layout_gravity="center"
+                            android:adjustViewBounds="true"
+                            android:src="@drawable/icon_default_9x9" />
+                    </RelativeLayout>
 
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
-                    android:layout_weight="1"
-                    android:gravity="center_vertical">
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="@string/min_time"
-                        android:id="@+id/second_min_text"/>
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="0"
-                        android:id="@+id/second_min_time"
-                        android:gravity="center_vertical"
-                        android:layout_below="@+id/second_min_text"/>
-                </RelativeLayout>
-            </LinearLayout>
-
-
-            <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="0dp"
-                android:layout_weight="1">
-
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
-                    android:layout_weight="0.7"
-                    android:gravity="center_vertical">
-
-                    <ImageView
-                        android:id="@+id/statistic_image7"
-                        android:layout_width="180dp"
+                    <RelativeLayout
+                        android:layout_width="0dp"
                         android:layout_height="fill_parent"
-                        android:layout_gravity="center"
-                        android:layout_marginTop="10dp"
-                        android:adjustViewBounds="true"
-                        android:src="@drawable/icon_default_9x9" />
-                </RelativeLayout>
+                        android:layout_weight="1"
+                        android:gravity="center_vertical">
 
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
-                    android:layout_weight="1"
-                    android:gravity="center_vertical">
-                    <RatingBar
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:numStars="3"
-                        android:layout_gravity="center"
-                        android:id="@+id/third_diff_bar"
-                        android:layout_below="@+id/third_diff_text"
-                        style="?android:attr/ratingBarStyleSmall"/>
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="diffi"
-                        android:id="@+id/third_diff_text"
-                        android:gravity="center_vertical"/>
-                </RelativeLayout>
+                        <RatingBar
+                            android:id="@+id/first_diff_bar"
+                            style="?android:attr/ratingBarStyleSmall"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_below="@+id/first_diff_text"
+                            android:layout_centerHorizontal="false"
+                            android:numStars="4" />
 
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
-                    android:layout_weight="1"
-                    android:gravity="center_vertical">
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="@string/min_time"
-                        android:id="@+id/third_min_text"/>
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="0"
-                        android:id="@+id/third_min_time"
-                        android:gravity="center_vertical"
-                        android:layout_below="@+id/third_min_text"/>
-                </RelativeLayout>
+                        <TextView
+                            android:id="@+id/first_diff_text"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:gravity="center_vertical"
+                            android:text="diffi" />
+                    </RelativeLayout>
 
-            </LinearLayout>
-
-
-            <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="0dp"
-                android:layout_weight="1">
-
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
-                    android:layout_weight="0.7"
-                    android:gravity="center_vertical">
-
-                    <ImageView
-                        android:id="@+id/statistic_image8"
-                        android:layout_width="180dp"
+                    <RelativeLayout
+                        android:layout_width="0dp"
+                        android:layout_height="fill_parent"
+                        android:layout_marginLeft="1dp"
+                        android:layout_weight="1"
+                        android:gravity="right|center_vertical">
+
+                        <TextView
+                            android:id="@+id/first_min_text"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:text="@string/min_time" />
+
+                        <TextView
+                            android:id="@+id/first_min_time"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_below="@+id/first_min_text"
+                            android:gravity="center_vertical"
+                            android:text="0" />
+                    </RelativeLayout>
+
+                </LinearLayout>
+
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="0dp"
+                    android:layout_weight="1"
+                    android:weightSum="3">
+
+                    <RelativeLayout
+                        android:layout_width="0dp"
                         android:layout_height="fill_parent"
-                        android:layout_gravity="center"
                         android:layout_marginTop="10dp"
                         android:layout_weight="0.7"
-                        android:adjustViewBounds="true"
-                        android:src="@drawable/icon_default_9x9" />
-                </RelativeLayout>
+                        android:gravity="center_vertical">
 
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
-                    android:layout_weight="1"
-                    android:gravity="center_vertical">
-                    <RatingBar
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:numStars="3"
-                        android:layout_gravity="center"
-                        android:id="@+id/fourth_diff_bar"
-                        android:layout_below="@+id/fourth_diff_text"
-                        style="?android:attr/ratingBarStyleSmall"/>
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="diffi"
-                        android:id="@+id/fourth_diff_text"
-                        android:gravity="center_vertical"/>
-                </RelativeLayout>
+                        <ImageView
+                            android:id="@+id/statistic_image2"
+                            android:layout_width="180dp"
+                            android:layout_height="fill_parent"
+                            android:layout_gravity="center"
+                            android:adjustViewBounds="true"
+                            android:src="@drawable/icon_default_9x9" />
+                    </RelativeLayout>
 
-                <RelativeLayout
-                    android:layout_width="0dp"
-                    android:layout_height="fill_parent"
+                    <RelativeLayout
+                        android:layout_width="0dp"
+                        android:layout_height="fill_parent"
+                        android:layout_weight="1"
+                        android:gravity="center_vertical">
+
+                        <RatingBar
+                            android:id="@+id/first_diff_bar"
+                            style="?android:attr/ratingBarStyleSmall"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_below="@+id/first_diff_text"
+                            android:layout_gravity="center"
+                            android:numStars="4" />
+
+                        <TextView
+                            android:id="@+id/first_diff_text"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:gravity="center_vertical"
+                            android:text="diffi" />
+                    </RelativeLayout>
+
+                    <RelativeLayout
+                        android:layout_width="0dp"
+                        android:layout_height="fill_parent"
+                        android:layout_weight="1"
+                        android:gravity="right|center_vertical">
+
+                        <TextView
+                            android:id="@+id/first_min_text"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:text="@string/min_time" />
+
+                        <TextView
+                            android:id="@+id/first_min_time"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_below="@+id/first_min_text"
+                            android:gravity="center_vertical"
+                            android:text="0" />
+                    </RelativeLayout>
+
+                </LinearLayout>
+
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="0dp"
                     android:layout_weight="1"
-                    android:gravity="center_vertical">
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="@string/min_time"
-                        android:id="@+id/fourth_min_text"/>
-                    <TextView
-                        android:layout_width="wrap_content"
-                        android:layout_height="wrap_content"
-                        android:text="0"
-                        android:id="@+id/fourth_min_time"
-                        android:gravity="center_vertical"
-                        android:layout_below="@+id/fourth_min_text"/>
-                </RelativeLayout>
+                    android:weightSum="3">
+
+                    <RelativeLayout
+                        android:layout_width="0dp"
+                        android:layout_height="fill_parent"
+                        android:layout_marginTop="10dp"
+                        android:layout_weight="0.7"
+                        android:gravity="center_vertical">
+
+                        <ImageView
+                            android:id="@+id/statistic_image2"
+                            android:layout_width="180dp"
+                            android:layout_height="fill_parent"
+                            android:layout_gravity="center"
+                            android:adjustViewBounds="true"
+                            android:src="@drawable/icon_default_9x9" />
+                    </RelativeLayout>
+
+                    <RelativeLayout
+                        android:layout_width="0dp"
+                        android:layout_height="fill_parent"
+                        android:layout_weight="1"
+                        android:gravity="center_vertical">
+
+                        <RatingBar
+                            android:id="@+id/first_diff_bar"
+                            style="?android:attr/ratingBarStyleSmall"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_below="@+id/first_diff_text"
+                            android:layout_gravity="center"
+                            android:numStars="4" />
+
+                        <TextView
+                            android:id="@+id/first_diff_text"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:gravity="center_vertical"
+                            android:text="diffi" />
+                    </RelativeLayout>
+
+                    <RelativeLayout
+                        android:layout_width="0dp"
+                        android:layout_height="fill_parent"
+                        android:layout_weight="1"
+                        android:gravity="right|center_vertical">
+
+                        <TextView
+                            android:id="@+id/first_min_text"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:text="@string/min_time" />
+
+                        <TextView
+                            android:id="@+id/first_min_time"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_below="@+id/first_min_text"
+                            android:gravity="center_vertical"
+                            android:text="0" />
+                    </RelativeLayout>
+
+                </LinearLayout>
+                <!-- ### second row -->
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="0dp"
+                    android:layout_weight="1"
+                    android:weightSum="3">
+
+                    <RelativeLayout
+                        android:layout_width="0dp"
+                        android:layout_height="fill_parent"
+                        android:layout_weight="0.7"
+                        android:gravity="center_vertical">
+
+                        <ImageView
+                            android:id="@+id/statistic_image6"
+                            android:layout_width="180dp"
+                            android:layout_height="fill_parent"
+                            android:layout_gravity="center"
+                            android:layout_marginTop="10dp"
+                            android:layout_weight="0.7"
+                            android:adjustViewBounds="true"
+                            android:src="@drawable/icon_default_9x9" />
+                    </RelativeLayout>
+
+                    <RelativeLayout
+                        android:layout_width="0dp"
+                        android:layout_height="fill_parent"
+                        android:layout_weight="1"
+                        android:gravity="center_vertical">
+
+                        <RatingBar
+                            android:id="@+id/second_diff_bar"
+                            style="?android:attr/ratingBarStyleSmall"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_below="@+id/second_diff_text"
+                            android:layout_gravity="center"
+                            android:numStars="4" />
+
+                        <TextView
+                            android:id="@+id/second_diff_text"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:gravity="center_vertical"
+                            android:text="diffi" />
+                    </RelativeLayout>
+
+                    <RelativeLayout
+                        android:layout_width="0dp"
+                        android:layout_height="fill_parent"
+                        android:layout_weight="1"
+                        android:gravity="right|center_vertical">
+
+                        <TextView
+                            android:id="@+id/second_min_text"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:text="@string/min_time" />
+
+                        <TextView
+                            android:id="@+id/second_min_time"
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:layout_below="@+id/second_min_text"
+                            android:gravity="center_vertical"
+                            android:text="0" />
+                    </RelativeLayout>
+                </LinearLayout>
+
 
             </LinearLayout>
 
-        </LinearLayout>
 
+        </LinearLayout>
 
     </LinearLayout>
 
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+        android:id="@+id/floatingActionButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginEnd="30dp"
+        android:layout_marginRight="30dp"
+        android:layout_marginBottom="290dp"
+        android:clickable="true"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:srcCompat="@android:drawable/ic_media_play" />
+
+
     <androidx.viewpager.widget.ViewPager
         android:id="@+id/main_content"
-        android:layout_width="fill_parent"
-        android:layout_height="fill_parent"
-        app:layout_behavior="@string/appbar_scrolling_view_behavior" />
+        android:layout_width="wrap_content"
+        android:layout_height="0dp"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="@+id/linearLayout6"
+        app:layout_constraintTop_toBottomOf="@+id/linearLayout6" >
+
+    </androidx.viewpager.widget.ViewPager>
 
 
-</LinearLayout>
\ No newline at end of file
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file