shows qr code with app, adds black design

- qr code is generated from text code
- password is shown as well, when clicking
  on the 'view' icon
- hides top view
- removes floating button
- display status is now in an own class

app/src/main/res/layout/activity_main.xml

@@ -22,13 +22,4 @@
 
     <include layout="@layout/content_main" />
 
-    <com.google.android.material.floatingactionbutton.FloatingActionButton
-        android:id="@+id/fab"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="bottom|end"
-        android:layout_marginEnd="@dimen/fab_margin"
-        android:layout_marginBottom="16dp"
-        app:srcCompat="@android:drawable/ic_dialog_email" />
-
 </androidx.coordinatorlayout.widget.CoordinatorLayout>

app/src/main/res/layout/fragment_first.xml

@@ -7,22 +7,61 @@
     tools:context="com.maenle.bump.ui.FirstFragment">
 
     <TextView
-        android:id="@+id/textview_first"
+        android:id="@+id/textview_scan"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="@string/current_sender"
-        app:layout_constraintBottom_toTopOf="@id/button_first"
+        android:layout_marginTop="40dp"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
-    <Button
-        android:id="@+id/button_first"
+    <TextView
+        android:id="@+id/textview_encryption"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:text="@string/scan_sender"
-        app:layout_constraintBottom_toBottomOf="parent"
+        android:text="@string/current_sender"
+        android:gravity="center"
+        android:breakStrategy="balanced"
+        android:maxEms="16"
+        android:visibility="gone"
+
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@id/textview_first" />
+        app:layout_constraintTop_toBottomOf="@id/textview_scan"/>
+
+    <ImageView
+        android:id="@+id/idIVQrcode"
+        android:layout_width="300dp"
+        android:layout_height="300dp"
+        android:layout_centerHorizontal="true"
+        android:contentDescription="@string/qr_code"
+        android:layout_marginTop="20dp"
+        android:visibility="gone"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/textview_encryption"
+        app:layout_constraintStart_toStartOf="parent"/>
+
+    <LinearLayout
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:layout_marginTop="20dp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/idIVQrcode"
+        app:layout_constraintStart_toStartOf="parent">
+
+        <Button
+            android:id="@+id/button_scan"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginEnd="20dp"
+            android:text="@string/scan_sender" />
+
+        <Button
+            android:id="@+id/button_view"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/view_sender" />
+    </LinearLayout>
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/navigation/nav_graph.xml

@@ -8,7 +8,7 @@
     <fragment
         android:id="@+id/FirstFragment"
         android:name="com.maenle.bump.ui.FirstFragment"
-        android:label="@string/first_fragment_label"
+        android:label="@string/main_fragment_label"
         tools:layout="@layout/fragment_first">
 
         <action

app/src/main/res/values/strings.xml

@@ -2,7 +2,7 @@
     <string name="app_name">Bump</string>
     <string name="action_settings">Settings</string>
     <!-- Strings used for fragments for navigation -->
-    <string name="first_fragment_label">First Fragment</string>
+    <string name="main_fragment_label">Bump</string>
     <string name="second_fragment_label">Second Fragment</string>
     <string name="next">Next</string>
     <string name="previous">Previous</string>
@@ -11,7 +11,7 @@
     <string name="hello_second_fragment">Hello second fragment. Arg: %1$s</string>
     <string name="current_sender">No Sender Added</string>
     <string name="scan_sender">Scan</string>
-    <string name="camera_fragment_label">Camera Fragment</string>
+    <string name="camera_fragment_label">Scan new Fragment</string>
     <string name="preference_file_key">code_file_key</string>
     <string name="code_key">code_key</string>
     <string name="notification_title">Bump</string>
@@ -21,4 +21,7 @@
     <string name="notification">This is a notification</string>
     <string name="message_subscribed">Subscribed to Channel</string>
     <string name="message_subscribe_failed">Could not subscribe</string>
+    <string name="view_sender">View</string>
+    <string name="qr_code">none</string>
+    <string name="hide_sender">Hide</string>
 </resources>