Merge all three apps into one repository

18 files changed, 1306 insertions, 0 deletions

diff --git a/merchant-terminal/src/main/res/layout/activity_main.xml b/merchant-terminal/src/main/res/layout/activity_main.xml
new file mode 100644
index 0000000..6523caa
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/activity_main.xml
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ This file is part of GNU Taler
+  ~ (C) 2020 Taler Systems S.A.
+  ~
+  ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+  ~ terms of the GNU General Public License as published by the Free Software
+  ~ Foundation; either version 3, or (at your option) any later version.
+  ~
+  ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+  ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  ~ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along with
+  ~ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+  -->
+
+<androidx.drawerlayout.widget.DrawerLayout
+        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/drawer_layout"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:fitsSystemWindows="true"
+        tools:openDrawer="start">
+
+    <include
+            layout="@layout/app_bar_main"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"/>
+
+    <com.google.android.material.navigation.NavigationView
+            android:id="@+id/nav_view"
+            android:layout_width="wrap_content"
+            android:layout_height="match_parent"
+            android:layout_gravity="start"
+            android:fitsSystemWindows="true"
+            app:menu="@menu/activity_main_drawer"
+            app:headerLayout="@layout/nav_header_main" />
+
+</androidx.drawerlayout.widget.DrawerLayout>
diff --git a/merchant-terminal/src/main/res/layout/app_bar_main.xml b/merchant-terminal/src/main/res/layout/app_bar_main.xml
new file mode 100644
index 0000000..0254c71
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/app_bar_main.xml
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ This file is part of GNU Taler
+  ~ (C) 2020 Taler Systems S.A.
+  ~
+  ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+  ~ terms of the GNU General Public License as published by the Free Software
+  ~ Foundation; either version 3, or (at your option) any later version.
+  ~
+  ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+  ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  ~ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along with
+  ~ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+  -->
+
+<androidx.coordinatorlayout.widget.CoordinatorLayout 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:layout_width="match_parent"
+        android:layout_height="match_parent"
+        tools:context=".MainActivity">
+
+    <com.google.android.material.appbar.AppBarLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            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" />
+
+    </com.google.android.material.appbar.AppBarLayout>
+
+    <androidx.fragment.app.FragmentContainerView
+            android:id="@+id/navHostFragment"
+            android:name="androidx.navigation.fragment.NavHostFragment"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            app:defaultNavHost="true"
+            app:layout_insetEdge="top"
+            app:layout_behavior="@string/appbar_scrolling_view_behavior"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintLeft_toLeftOf="parent"
+            app:layout_constraintRight_toRightOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:navGraph="@navigation/nav_graph" />
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>
diff --git a/merchant-terminal/src/main/res/layout/fragment_categories.xml b/merchant-terminal/src/main/res/layout/fragment_categories.xml
new file mode 100644
index 0000000..a90585f
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_categories.xml
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ This file is part of GNU Taler
+  ~ (C) 2020 Taler Systems S.A.
+  ~
+  ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+  ~ terms of the GNU General Public License as published by the Free Software
+  ~ Foundation; either version 3, or (at your option) any later version.
+  ~
+  ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+  ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  ~ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along with
+  ~ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+  -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:app="http://schemas.android.com/apk/res-auto"
+        android:layout_width="match_parent"
+        xmlns:tools="http://schemas.android.com/tools"
+        android:layout_marginStart="8dp"
+        android:layout_marginEnd="8dp"
+        android:layout_height="match_parent">
+
+    <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/categoriesList"
+            android:layout_width="0dp"
+            tools:listitem="@layout/list_item_category"
+            android:layout_height="0dp"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+    <ProgressBar
+            android:id="@+id/progressBar"
+            style="?android:attr/progressBarStyleLarge"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/fragment_config_fetcher.xml b/merchant-terminal/src/main/res/layout/fragment_config_fetcher.xml
new file mode 100644
index 0000000..af7dcaf
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_config_fetcher.xml
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ This file is part of GNU Taler
+  ~ (C) 2020 Taler Systems S.A.
+  ~
+  ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+  ~ terms of the GNU General Public License as published by the Free Software
+  ~ Foundation; either version 3, or (at your option) any later version.
+  ~
+  ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+  ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  ~ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along with
+  ~ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+  -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:app="http://schemas.android.com/apk/res-auto"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_margin="16dp">
+
+    <TextView
+            android:id="@+id/titleView"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_margin="16dp"
+            android:text="@string/config_fetching"
+            android:textAppearance="@style/TextAppearance.AppCompat.Headline"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+    <ProgressBar
+            android:id="@+id/progressBar"
+            style="?android:attr/progressBarStyleLarge"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_margin="16dp"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/titleView" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/fragment_merchant_config.xml b/merchant-terminal/src/main/res/layout/fragment_merchant_config.xml
new file mode 100644
index 0000000..2541887
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_merchant_config.xml
@@ -0,0 +1,152 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ This file is part of GNU Taler
+  ~ (C) 2020 Taler Systems S.A.
+  ~
+  ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+  ~ terms of the GNU General Public License as published by the Free Software
+  ~ Foundation; either version 3, or (at your option) any later version.
+  ~
+  ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+  ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  ~ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along with
+  ~ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+  -->
+
+<ScrollView 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:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:fillViewport="true">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            tools:context=".config.MerchantConfigFragment">
+
+        <com.google.android.material.textfield.TextInputLayout
+                android:id="@+id/configUrlView"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_margin="16dp"
+                android:hint="@string/config_url"
+                app:boxBackgroundColor="@android:color/transparent"
+                app:boxBackgroundMode="outline"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toTopOf="parent">
+
+            <com.google.android.material.textfield.TextInputEditText
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:inputType="textUri" />
+
+        </com.google.android.material.textfield.TextInputLayout>
+
+        <com.google.android.material.textfield.TextInputLayout
+                android:id="@+id/usernameView"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_margin="16dp"
+                android:hint="@string/config_username"
+                app:boxBackgroundColor="@android:color/transparent"
+                app:boxBackgroundMode="outline"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toBottomOf="@+id/configUrlView">
+
+            <com.google.android.material.textfield.TextInputEditText
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:inputType="text" />
+
+        </com.google.android.material.textfield.TextInputLayout>
+
+        <com.google.android.material.textfield.TextInputLayout
+                android:id="@+id/passwordView"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_margin="16dp"
+                android:hint="@string/config_password"
+                app:boxBackgroundColor="@android:color/transparent"
+                app:boxBackgroundMode="outline"
+                app:endIconMode="password_toggle"
+                app:layout_constraintEnd_toStartOf="@+id/forgetPasswordButton"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toBottomOf="@+id/usernameView">
+
+            <com.google.android.material.textfield.TextInputEditText
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:inputType="textWebPassword" />
+
+        </com.google.android.material.textfield.TextInputLayout>
+
+        <Button
+                android:id="@+id/forgetPasswordButton"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_margin="16dp"
+                android:text="@string/config_forget_password"
+                android:visibility="gone"
+                app:layout_constraintBottom_toBottomOf="@+id/passwordView"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintTop_toTopOf="@+id/passwordView"
+                tools:visibility="visible" />
+
+        <CheckBox
+                android:id="@+id/savePasswordCheckBox"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_marginStart="16dp"
+                android:layout_marginTop="16dp"
+                android:layout_marginBottom="16dp"
+                android:checked="true"
+                android:text="@string/config_save_password"
+                app:layout_constraintBottom_toBottomOf="parent"
+                app:layout_constraintEnd_toStartOf="@+id/okButton"
+                app:layout_constraintHorizontal_chainStyle="spread_inside"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toBottomOf="@+id/passwordView"
+                app:layout_constraintVertical_bias="0.0" />
+
+        <com.google.android.material.button.MaterialButton
+                android:id="@+id/okButton"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_margin="16dp"
+                android:text="@string/config_ok"
+                app:layout_constraintBottom_toBottomOf="parent"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toEndOf="@+id/savePasswordCheckBox"
+                app:layout_constraintTop_toBottomOf="@+id/passwordView"
+                app:layout_constraintVertical_bias="0.0" />
+
+        <ProgressBar
+                android:id="@+id/progressBar"
+                style="?android:attr/progressBarStyle"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:visibility="invisible"
+                app:layout_constraintBottom_toBottomOf="@+id/okButton"
+                app:layout_constraintEnd_toEndOf="@+id/okButton"
+                app:layout_constraintStart_toStartOf="@+id/okButton"
+                app:layout_constraintTop_toTopOf="@+id/okButton"
+                tools:visibility="visible" />
+
+        <TextView
+                android:id="@+id/configDocsView"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_margin="16dp"
+                android:text="@string/config_docs"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toBottomOf="@+id/okButton" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+</ScrollView>
diff --git a/merchant-terminal/src/main/res/layout/fragment_merchant_history.xml b/merchant-terminal/src/main/res/layout/fragment_merchant_history.xml
new file mode 100644
index 0000000..21e6f08
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_merchant_history.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ This file is part of GNU Taler
+  ~ (C) 2020 Taler Systems S.A.
+  ~
+  ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+  ~ terms of the GNU General Public License as published by the Free Software
+  ~ Foundation; either version 3, or (at your option) any later version.
+  ~
+  ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+  ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  ~ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along with
+  ~ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+  -->
+
+<androidx.swiperefreshlayout.widget.SwipeRefreshLayout xmlns:android="http://schemas.android.com/apk/res/android"
+        android:id="@+id/swipeRefresh"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+    <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/list_history"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:scrollbars="vertical" />
+
+</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
diff --git a/merchant-terminal/src/main/res/layout/fragment_order.xml b/merchant-terminal/src/main/res/layout/fragment_order.xml
new file mode 100644
index 0000000..4af9c77
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_order.xml
@@ -0,0 +1,138 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ This file is part of GNU Taler
+  ~ (C) 2020 Taler Systems S.A.
+  ~
+  ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+  ~ terms of the GNU General Public License as published by the Free Software
+  ~ Foundation; either version 3, or (at your option) any later version.
+  ~
+  ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+  ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  ~ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along with
+  ~ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+  -->
+
+<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:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+    <androidx.fragment.app.FragmentContainerView
+            android:id="@+id/fragment1"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_marginBottom="8dp"
+            app:layout_constraintBottom_toTopOf="@+id/restartButton"
+            app:layout_constraintEnd_toStartOf="@+id/guideline1"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            tools:layout="@layout/fragment_order_state" />
+
+    <androidx.constraintlayout.widget.Guideline
+            android:id="@+id/guideline1"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"
+            app:layout_constraintGuide_percent="0.25" />
+
+    <androidx.fragment.app.FragmentContainerView
+            android:id="@+id/fragment2"
+            android:name="net.taler.merchantpos.order.ProductsFragment"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_marginBottom="8dp"
+            app:layout_constraintBottom_toTopOf="@+id/restartButton"
+            app:layout_constraintEnd_toStartOf="@+id/guideline2"
+            app:layout_constraintStart_toStartOf="@+id/guideline1"
+            app:layout_constraintTop_toTopOf="parent"
+            tools:layout="@layout/fragment_products" />
+
+    <androidx.constraintlayout.widget.Guideline
+            android:id="@+id/guideline2"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"
+            app:layout_constraintGuide_percent="0.75" />
+
+    <androidx.fragment.app.FragmentContainerView
+            android:id="@+id/fragment3"
+            android:name="net.taler.merchantpos.order.CategoriesFragment"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_marginBottom="8dp"
+            app:layout_constraintBottom_toTopOf="@+id/restartButton"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="@+id/guideline2"
+            app:layout_constraintTop_toTopOf="parent"
+            tools:layout="@layout/fragment_categories" />
+
+    <Button
+            android:id="@+id/restartButton"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="8dp"
+            android:backgroundTint="@color/button_bottom"
+            android:text="@string/order_restart"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintStart_toStartOf="parent" />
+
+    <Button
+            android:id="@+id/plusButton"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:minWidth="48dp"
+            android:text="+1"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintStart_toEndOf="@+id/minusButton"
+            tools:ignore="HardcodedText" />
+
+    <Button
+            android:id="@+id/minusButton"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="32dp"
+            android:minWidth="48dp"
+            android:text="-1"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintStart_toEndOf="@+id/restartButton"
+            tools:ignore="HardcodedText" />
+
+    <Button
+            android:id="@+id/prevButton"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="32dp"
+            android:backgroundTint="@color/button_bottom"
+            android:text="@string/order_previous"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintStart_toEndOf="@+id/plusButton" />
+
+    <Button
+            android:id="@+id/nextButton"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:backgroundTint="@color/button_bottom"
+            android:text="@string/order_next"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintStart_toEndOf="@+id/prevButton" />
+
+    <Button
+            android:id="@+id/completeButton"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="32dp"
+            android:layout_marginEnd="8dp"
+            android:backgroundTint="@color/button_bottom"
+            android:text="@string/order_complete"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="1.0"
+            app:layout_constraintStart_toEndOf="@+id/nextButton" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/fragment_order_state.xml b/merchant-terminal/src/main/res/layout/fragment_order_state.xml
new file mode 100644
index 0000000..7d6b258
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_order_state.xml
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ This file is part of GNU Taler
+  ~ (C) 2020 Taler Systems S.A.
+  ~
+  ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+  ~ terms of the GNU General Public License as published by the Free Software
+  ~ Foundation; either version 3, or (at your option) any later version.
+  ~
+  ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+  ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  ~ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along with
+  ~ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+  -->
+
+<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:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+    <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/orderList"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            app:layout_constraintBottom_toTopOf="@+id/totalView"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            tools:listitem="@layout/list_item_order" />
+
+    <TextView
+            android:id="@+id/totalView"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:background="@color/highlightedBackground"
+            android:elevation="2dp"
+            android:gravity="center_vertical|end"
+            android:padding="8dp"
+            android:textColor="?android:textColorPrimary"
+            android:textSize="16sp"
+            android:visibility="invisible"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/orderList"
+            tools:text="Total: 23.75 TESTKUDOS"
+            tools:visibility="visible" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/fragment_payment_success.xml b/merchant-terminal/src/main/res/layout/fragment_payment_success.xml
new file mode 100644
index 0000000..1bc9be7
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_payment_success.xml
@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ This file is part of GNU Taler
+  ~ (C) 2020 Taler Systems S.A.
+  ~
+  ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+  ~ terms of the GNU General Public License as published by the Free Software
+  ~ Foundation; either version 3, or (at your option) any later version.
+  ~
+  ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+  ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  ~ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along with
+  ~ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+  -->
+
+<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:layout_width="match_parent"
+        android:layout_height="match_parent"
+        tools:context=".payment.PaymentSuccessFragment">
+
+    <ImageView
+            android:id="@+id/paymentIcon"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_margin="16dp"
+            android:src="@drawable/ic_check_circle"
+            app:layout_constraintBottom_toTopOf="@+id/paymentLabel"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintVertical_chainStyle="spread_inside"
+            tools:ignore="ContentDescription" />
+
+    <TextView
+            android:id="@+id/paymentLabel"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_margin="16dp"
+            android:gravity="center_horizontal|top"
+            android:text="@string/payment_received"
+            android:textColor="@color/green"
+            app:autoSizeMaxTextSize="42sp"
+            app:autoSizeTextType="uniform"
+            app:layout_constraintBottom_toTopOf="@+id/paymentButton"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/paymentIcon" />
+
+    <androidx.constraintlayout.widget.Guideline
+            android:id="@+id/guidelineLeft"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"
+            app:layout_constraintGuide_percent="0.25" />
+
+    <androidx.constraintlayout.widget.Guideline
+            android:id="@+id/guidelineRight"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"
+            app:layout_constraintGuide_percent="0.75" />
+
+    <Button
+            android:id="@+id/paymentButton"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_margin="16dp"
+            android:text="@string/payment_back_button"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toStartOf="@+id/guidelineRight"
+            app:layout_constraintStart_toStartOf="@+id/guidelineLeft" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/fragment_process_payment.xml b/merchant-terminal/src/main/res/layout/fragment_process_payment.xml
new file mode 100644
index 0000000..6cd8ea1
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_process_payment.xml
@@ -0,0 +1,110 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ This file is part of GNU Taler
+  ~ (C) 2020 Taler Systems S.A.
+  ~
+  ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+  ~ terms of the GNU General Public License as published by the Free Software
+  ~ Foundation; either version 3, or (at your option) any later version.
+  ~
+  ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+  ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  ~ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along with
+  ~ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+  -->
+
+<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:layout_width="match_parent"
+        android:layout_height="match_parent"
+        tools:context=".payment.ProcessPaymentFragment">
+
+    <ImageView
+            android:id="@+id/qrcodeView"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_margin="32dp"
+            android:visibility="invisible"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toStartOf="@+id/guideline"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            tools:ignore="ContentDescription"
+            tools:src="@tools:sample/avatars"
+            tools:visibility="visible" />
+
+    <ProgressBar
+            android:id="@+id/progressBar"
+            style="?android:attr/progressBarStyleLarge"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            app:layout_constraintBottom_toBottomOf="@+id/qrcodeView"
+            app:layout_constraintEnd_toEndOf="@+id/qrcodeView"
+            app:layout_constraintStart_toStartOf="@+id/qrcodeView"
+            app:layout_constraintTop_toTopOf="@+id/qrcodeView" />
+
+    <androidx.constraintlayout.widget.Guideline
+            android:id="@+id/guideline"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"
+            app:layout_constraintGuide_percent="0.54" />
+
+    <TextView
+            android:id="@+id/payIntroView"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_margin="16dp"
+            android:text="@string/payment_intro_nfc"
+            android:textAlignment="center"
+            android:textSize="24sp"
+            android:visibility="invisible"
+            app:layout_constraintBottom_toTopOf="@+id/amountView"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="@+id/guideline"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintVertical_chainStyle="spread"
+            tools:visibility="visible" />
+
+    <TextView
+            android:id="@+id/amountView"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_margin="16dp"
+            android:textAppearance="@style/TextAppearance.AppCompat.Headline"
+            app:layout_constraintBottom_toTopOf="@+id/orderRefView"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="@+id/guideline"
+            app:layout_constraintTop_toBottomOf="@+id/payIntroView"
+            tools:text="10.49 TESTKUDOS" />
+
+    <TextView
+            android:id="@+id/orderRefView"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_margin="16dp"
+            android:textAlignment="center"
+            android:visibility="invisible"
+            app:layout_constraintBottom_toTopOf="@id/cancelPaymentButton"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="@+id/guideline"
+            app:layout_constraintTop_toBottomOf="@+id/amountView"
+            tools:text="@string/payment_order_ref"
+            tools:visibility="visible" />
+
+    <Button
+            android:id="@+id/cancelPaymentButton"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_margin="16dp"
+            android:backgroundTint="@color/red"
+            android:text="@string/payment_cancel"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.0"
+            app:layout_constraintStart_toStartOf="@+id/guideline" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/fragment_products.xml b/merchant-terminal/src/main/res/layout/fragment_products.xml
new file mode 100644
index 0000000..f0e86e7
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_products.xml
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ This file is part of GNU Taler
+  ~ (C) 2020 Taler Systems S.A.
+  ~
+  ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+  ~ terms of the GNU General Public License as published by the Free Software
+  ~ Foundation; either version 3, or (at your option) any later version.
+  ~
+  ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+  ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  ~ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along with
+  ~ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+  -->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:app="http://schemas.android.com/apk/res-auto"
+        android:layout_width="match_parent"
+        xmlns:tools="http://schemas.android.com/tools"
+        android:layout_height="match_parent">
+
+    <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/productsList"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            tools:listitem="@layout/list_item_product" />
+
+    <ProgressBar
+            android:id="@+id/progressBar"
+            style="?android:attr/progressBarStyleLarge"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/fragment_refund.xml b/merchant-terminal/src/main/res/layout/fragment_refund.xml
new file mode 100644
index 0000000..5a78cdd
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_refund.xml
@@ -0,0 +1,122 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ This file is part of GNU Taler
+  ~ (C) 2020 Taler Systems S.A.
+  ~
+  ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+  ~ terms of the GNU General Public License as published by the Free Software
+  ~ Foundation; either version 3, or (at your option) any later version.
+  ~
+  ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+  ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  ~ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along with
+  ~ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+  -->
+
+<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:layout_width="match_parent"
+        android:layout_height="match_parent"
+        tools:context=".history.RefundFragment">
+
+    <com.google.android.material.textfield.TextInputLayout
+            android:id="@+id/amountView"
+            style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox.Dense"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_margin="16dp"
+            android:hint="@string/refund_amount"
+            app:boxBackgroundMode="outline"
+            app:endIconMode="clear_text"
+            app:endIconTint="?attr/colorControlNormal"
+            app:layout_constraintBottom_toTopOf="@+id/reasonView"
+            app:layout_constraintEnd_toStartOf="@+id/currencyView"
+            app:layout_constraintHorizontal_chainStyle="packed"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintVertical_chainStyle="spread">
+
+        <com.google.android.material.textfield.TextInputEditText
+                android:id="@+id/amountInputView"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:ems="6"
+                android:inputType="numberDecimal"
+                tools:text="23.42" />
+
+    </com.google.android.material.textfield.TextInputLayout>
+
+    <TextView
+            android:id="@+id/currencyView"
+            android:layout_width="wrap_content"
+            android:layout_height="0dp"
+            android:layout_marginStart="8dp"
+            android:gravity="start|center_vertical"
+            app:layout_constraintBottom_toBottomOf="@+id/amountView"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toEndOf="@+id/amountView"
+            app:layout_constraintTop_toTopOf="@+id/amountView"
+            tools:text="TESTKUDOS" />
+
+    <com.google.android.material.textfield.TextInputLayout
+            android:id="@+id/reasonView"
+            style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox.Dense"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_margin="16dp"
+            android:hint="@string/refund_reason"
+            app:endIconMode="clear_text"
+            app:layout_constraintBottom_toTopOf="@+id/abortButton"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/amountView">
+
+        <com.google.android.material.textfield.TextInputEditText
+                android:id="@+id/reasonInputView"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:inputType="textAutoComplete|textAutoCorrect|textMultiLine" />
+
+    </com.google.android.material.textfield.TextInputLayout>
+
+    <Button
+            android:id="@+id/abortButton"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_margin="16dp"
+            android:backgroundTint="@color/red"
+            android:text="@string/refund_abort"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toStartOf="@+id/refundButton"
+            app:layout_constraintHorizontal_bias="0.76"
+            app:layout_constraintHorizontal_chainStyle="spread_inside"
+            app:layout_constraintStart_toStartOf="parent" />
+
+    <Button
+            android:id="@+id/refundButton"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_margin="16dp"
+            android:backgroundTint="@color/green"
+            android:text="@string/refund_confirm"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintStart_toEndOf="@+id/abortButton" />
+
+    <ProgressBar
+            android:id="@+id/progressBar"
+            style="?android:attr/progressBarStyle"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:visibility="invisible"
+            app:layout_constraintBottom_toBottomOf="@+id/refundButton"
+            app:layout_constraintEnd_toEndOf="@+id/refundButton"
+            app:layout_constraintStart_toStartOf="@+id/refundButton"
+            app:layout_constraintTop_toTopOf="@+id/refundButton"
+            tools:visibility="visible" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/fragment_refund_uri.xml b/merchant-terminal/src/main/res/layout/fragment_refund_uri.xml
new file mode 100644
index 0000000..8447d28
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/fragment_refund_uri.xml
@@ -0,0 +1,93 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ This file is part of GNU Taler
+  ~ (C) 2020 Taler Systems S.A.
+  ~
+  ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+  ~ terms of the GNU General Public License as published by the Free Software
+  ~ Foundation; either version 3, or (at your option) any later version.
+  ~
+  ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+  ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  ~ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along with
+  ~ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+  -->
+
+<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:layout_width="match_parent"
+        android:layout_height="match_parent"
+        tools:context=".payment.ProcessPaymentFragment">
+
+    <ImageView
+            android:id="@+id/refundQrcodeView"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_margin="32dp"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toStartOf="@+id/guideline"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            tools:ignore="ContentDescription"
+            tools:src="@tools:sample/avatars" />
+
+    <androidx.constraintlayout.widget.Guideline
+            android:id="@+id/guideline"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"
+            app:layout_constraintGuide_percent="0.54" />
+
+    <TextView
+            android:id="@+id/refundIntroView"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_margin="16dp"
+            android:text="@string/refund_intro_nfc"
+            android:textAlignment="center"
+            android:textSize="24sp"
+            app:layout_constraintBottom_toTopOf="@+id/refundAmountView"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="@+id/guideline"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintVertical_chainStyle="spread" />
+
+    <TextView
+            android:id="@+id/refundAmountView"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_margin="16dp"
+            android:textAppearance="@style/TextAppearance.AppCompat.Headline"
+            app:layout_constraintBottom_toTopOf="@+id/refundRefView"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="@+id/guideline"
+            app:layout_constraintTop_toBottomOf="@+id/refundIntroView"
+            tools:text="10.49 TESTKUDOS" />
+
+    <TextView
+            android:id="@+id/refundRefView"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_margin="16dp"
+            android:textAlignment="center"
+            app:layout_constraintBottom_toTopOf="@id/cancelRefundButton"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="@+id/guideline"
+            app:layout_constraintTop_toBottomOf="@+id/refundAmountView"
+            tools:text="@string/refund_order_ref" />
+
+    <Button
+            android:id="@+id/cancelRefundButton"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_margin="16dp"
+            android:backgroundTint="@color/red"
+            android:text="@string/refund_abort"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.0"
+            app:layout_constraintStart_toStartOf="@+id/guideline" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/list_item_category.xml b/merchant-terminal/src/main/res/layout/list_item_category.xml
new file mode 100644
index 0000000..cbdbd34
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/list_item_category.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ This file is part of GNU Taler
+  ~ (C) 2020 Taler Systems S.A.
+  ~
+  ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+  ~ terms of the GNU General Public License as published by the Free Software
+  ~ Foundation; either version 3, or (at your option) any later version.
+  ~
+  ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+  ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  ~ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along with
+  ~ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+  -->
+
+<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:layout_width="match_parent"
+        android:layout_height="wrap_content">
+
+    <Button
+            android:id="@+id/button"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            tools:text="Snacks" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/list_item_history.xml b/merchant-terminal/src/main/res/layout/list_item_history.xml
new file mode 100644
index 0000000..fe485ba
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/list_item_history.xml
@@ -0,0 +1,97 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ This file is part of GNU Taler
+  ~ (C) 2020 Taler Systems S.A.
+  ~
+  ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+  ~ terms of the GNU General Public License as published by the Free Software
+  ~ Foundation; either version 3, or (at your option) any later version.
+  ~
+  ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+  ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  ~ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along with
+  ~ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+  -->
+
+<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:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:padding="16dp">
+
+    <TextView
+            android:id="@+id/orderSummaryView"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:textColor="?android:attr/textColorPrimary"
+            android:textSize="20sp"
+            android:textStyle="bold"
+            app:layout_constraintEnd_toStartOf="@+id/orderAmountView"
+            app:layout_constraintHorizontal_bias="1.0"
+            app:layout_constraintHorizontal_chainStyle="spread_inside"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            tools:text="One Cappuccino or another name that can be so long that it spans more than one line" />
+
+    <TextView
+            android:id="@+id/orderAmountView"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="8dp"
+            android:layout_marginEnd="16dp"
+            android:textColor="?android:attr/textColorPrimary"
+            android:textSize="20sp"
+            android:textStyle="bold"
+            app:layout_constraintBottom_toBottomOf="@+id/orderSummaryView"
+            app:layout_constraintEnd_toStartOf="@+id/refundButton"
+            app:layout_constraintStart_toEndOf="@+id/orderSummaryView"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintVertical_bias="0.0"
+            tools:text="23.42 TESTKUDOS" />
+
+    <TextView
+            android:id="@+id/orderIdView"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="8dp"
+            android:text="@string/history_ref_no"
+            android:textAllCaps="false"
+            android:textSize="20sp"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toStartOf="@+id/orderTimeView"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintHorizontal_chainStyle="spread_inside"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/orderSummaryView" />
+
+    <TextView
+            android:id="@+id/orderTimeView"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="8dp"
+            android:layout_marginTop="8dp"
+            android:layout_marginEnd="16dp"
+            android:textSize="20sp"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toStartOf="@+id/refundButton"
+            app:layout_constraintStart_toEndOf="@+id/orderIdView"
+            app:layout_constraintTop_toBottomOf="@+id/orderAmountView"
+            app:layout_constraintVertical_bias="1.0"
+            tools:text="3 hrs. ago" />
+
+    <ImageButton
+            android:id="@+id/refundButton"
+            android:layout_width="48dp"
+            android:layout_height="48dp"
+            android:backgroundTint="?colorPrimary"
+            android:contentDescription="@string/history_refund"
+            android:tint="?attr/colorOnPrimary"
+            android:visibility="gone"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:srcCompat="@drawable/ic_cash_refund" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/list_item_order.xml b/merchant-terminal/src/main/res/layout/list_item_order.xml
new file mode 100644
index 0000000..f88364d
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/list_item_order.xml
@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ This file is part of GNU Taler
+  ~ (C) 2020 Taler Systems S.A.
+  ~
+  ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+  ~ terms of the GNU General Public License as published by the Free Software
+  ~ Foundation; either version 3, or (at your option) any later version.
+  ~
+  ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+  ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  ~ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along with
+  ~ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+  -->
+
+<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:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:background="@drawable/selectable_background"
+        android:minHeight="48dp"
+        android:padding="8dp">
+
+    <TextView
+            android:id="@+id/quantity"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:gravity="end"
+            android:minWidth="24dp"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="@+id/name"
+            app:layout_constraintVertical_bias="0.0"
+            tools:text="31" />
+
+    <TextView
+            android:id="@+id/name"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="8dp"
+            android:layout_marginEnd="8dp"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toStartOf="@+id/price"
+            app:layout_constraintStart_toEndOf="@+id/quantity"
+            app:layout_constraintTop_toTopOf="parent"
+            tools:text="An order product item that in some cases could have a very long name" />
+
+    <TextView
+            android:id="@+id/price"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintTop_toTopOf="@+id/name"
+            app:layout_constraintVertical_bias="0.0"
+            tools:text="23.42" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/merchant-terminal/src/main/res/layout/list_item_product.xml b/merchant-terminal/src/main/res/layout/list_item_product.xml
new file mode 100644
index 0000000..1037bef
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/list_item_product.xml
@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ This file is part of GNU Taler
+  ~ (C) 2020 Taler Systems S.A.
+  ~
+  ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+  ~ terms of the GNU General Public License as published by the Free Software
+  ~ Foundation; either version 3, or (at your option) any later version.
+  ~
+  ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+  ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  ~ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along with
+  ~ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+  -->
+
+<com.google.android.material.card.MaterialCardView 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:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_margin="4dp"
+        android:clickable="true"
+        android:focusable="true"
+        app:cardUseCompatPadding="true">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:padding="8dp">
+
+        <TextView
+                android:id="@+id/name"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:textColor="?android:textColorPrimary"
+                android:textStyle="bold"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toTopOf="parent"
+                tools:text="Steak and two Eggs" />
+
+        <TextView
+                android:id="@+id/price"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="8dp"
+                android:textColor="?android:textColorSecondary"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintTop_toBottomOf="@+id/name"
+                tools:text="7.95" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+</com.google.android.material.card.MaterialCardView>
\ No newline at end of file
diff --git a/merchant-terminal/src/main/res/layout/nav_header_main.xml b/merchant-terminal/src/main/res/layout/nav_header_main.xml
new file mode 100644
index 0000000..14bbd51
--- /dev/null
+++ b/merchant-terminal/src/main/res/layout/nav_header_main.xml
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ This file is part of GNU Taler
+  ~ (C) 2020 Taler Systems S.A.
+  ~
+  ~ GNU Taler is free software; you can redistribute it and/or modify it under the
+  ~ terms of the GNU General Public License as published by the Free Software
+  ~ Foundation; either version 3, or (at your option) any later version.
+  ~
+  ~ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+  ~ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  ~ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along with
+  ~ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+  -->
+
+<LinearLayout 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:layout_width="match_parent"
+        android:layout_height="@dimen/nav_header_height"
+        android:background="@drawable/side_nav_bar"
+        android:gravity="bottom"
+        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:theme="@style/AppTheme">
+
+    <ImageView
+            android:id="@+id/imageView"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:paddingTop="@dimen/nav_header_vertical_spacing"
+            app:srcCompat="@mipmap/ic_taler_logo_round"
+            tools:ignore="ContentDescription" />
+
+    <TextView
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:paddingTop="@dimen/nav_header_vertical_spacing"
+            android:text="@string/project_name"
+            android:textAppearance="@style/TextAppearance.AppCompat.Body1"
+            android:textColor="#FFF" />
+
+    <TextView
+            android:id="@+id/textView"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/app_name_short"
+            android:textColor="#FFF" />
+
+</LinearLayout>