[cashier] Add about screen with version and license info

3 files changed, 97 insertions, 0 deletions

diff --git a/cashier/src/main/res/layout/fragment_about_dialog.xml b/cashier/src/main/res/layout/fragment_about_dialog.xml
new file mode 100644
index 0000000..2bb7742
--- /dev/null
+++ b/cashier/src/main/res/layout/fragment_about_dialog.xml
@@ -0,0 +1,81 @@
+<?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"
+    android:padding="16dp"
+    tools:context=".AboutDialogFragment">
+
+    <TextView
+        android:id="@+id/titleView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:maxLines="1"
+        android:text="@string/about_title"
+        android:textAppearance="@style/TextAppearance.AppCompat.Headline"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <TextView
+        android:id="@+id/versionView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:text="@string/about_version"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/titleView" />
+
+    <TextView
+        android:id="@+id/bankVersionView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:text="@string/about_supported_bank_api"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/versionView" />
+
+    <TextView
+        android:id="@+id/licenseView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:text="@string/about_license"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/bankVersionView" />
+
+    <TextView
+        android:id="@+id/copyrightView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:text="@string/about_copyright"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/licenseView" />
+
+    <Button
+        android:id="@+id/button"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:text="@string/ok"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/copyrightView" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/cashier/src/main/res/menu/balance.xml b/cashier/src/main/res/menu/balance.xml
index eac38d6..816512b 100644
--- a/cashier/src/main/res/menu/balance.xml
+++ b/cashier/src/main/res/menu/balance.xml
@@ -25,5 +25,9 @@
         android:id="@+id/action_lock"
         android:title="@string/action_lock"
         app:showAsAction="never" />
+    <item
+        android:id="@+id/action_about"
+        android:title="@string/action_about"
+        app:showAsAction="never" />
 
 </menu>
diff --git a/cashier/src/main/res/values/strings.xml b/cashier/src/main/res/values/strings.xml
index 4a8064f..4c000d8 100644
--- a/cashier/src/main/res/values/strings.xml
+++ b/cashier/src/main/res/values/strings.xml
@@ -15,8 +15,12 @@
     <string name="balance_current_label">Current balance</string>
     <string name="balance_error">ERROR: %s</string>
     <string name="balance_offline">Offline. Please connect to the Internet.</string>
+
+    <string name="ok">OK</string>
+
     <string name="action_reconfigure">Reconfigure</string>
     <string name="action_lock">Lock</string>
+    <string name="action_about">About</string>
 
     <string name="withdraw_input_amount">Amount</string>
     <string name="withdraw_into">How much e-cash should be withdrawn?</string>
@@ -40,4 +44,12 @@
     <string name="transaction_last_aborted">Last Transaction: Aborted</string>
     <string name="transaction_last_error">Last Transaction: Failed</string>
 
+    <string name="about_title">GNU Taler Cashier</string>
+    <string name="about_version">Version: %s</string>
+    <string name="about_license">License: %s</string>
+    <string name="about_license_content" translatable="false">GPL-3.0-or-later</string>
+    <string name="about_copyright">Copyright: %s</string>
+    <string name="about_copyright_holder" translatable="false">Taler Systems S.A.</string>
+    <string name="about_supported_bank_api">Bank API Version: %s</string>
+
 </resources>