Add about

app/src/main/java/io/spaceapi/community/myhackerspace/AboutLayout.java

@@ -0,0 +1,40 @@
+package io.spaceapi.community.myhackerspace;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.LayoutInflater;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import androidx.annotation.Nullable;
+
+public class AboutLayout extends LinearLayout {
+
+    public AboutLayout(Context context) {
+        super(context);
+    }
+
+    public AboutLayout(Context context, @Nullable AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public AboutLayout(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+
+    public AboutLayout(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
+        super(context, attrs, defStyleAttr, defStyleRes);
+    }
+
+    public void init() {
+        TextView version = findViewById(R.id.about_version_text);
+        version.setText(BuildConfig.VERSION_NAME + " (" + Integer.toString(BuildConfig.VERSION_CODE) + ")");
+    }
+
+    public static AboutLayout create(Context context) {
+        LayoutInflater layoutInflater = LayoutInflater.from(context);
+        AboutLayout about = (AboutLayout) layoutInflater.inflate(R.layout.about, null, false);
+        about.init();
+        return about;
+    }
+}

app/src/main/java/io/spaceapi/community/myhackerspace/Prefs.java

@@ -5,11 +5,16 @@
  */
 package io.spaceapi.community.myhackerspace;
 
+import static android.view.ViewGroup.LayoutParams.*;
+
 import android.content.SharedPreferences;
 import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
 import android.os.Bundle;
 import android.preference.PreferenceActivity;
 import android.preference.PreferenceScreen;
+import android.view.LayoutInflater;
+import android.view.ViewGroup;
+import android.widget.LinearLayout;
 
 public class Prefs extends PreferenceActivity implements
         OnSharedPreferenceChangeListener {
@@ -31,6 +36,7 @@ public class Prefs extends PreferenceActivity implements
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         addPreferencesFromResource(R.xml.preferences);
+        this.getListView().addFooterView(AboutLayout.create(this)); // tried addContentView
         PreferenceScreen ps = getPreferenceScreen();
         ps.getSharedPreferences()
                 .registerOnSharedPreferenceChangeListener(this);

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

@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="utf-8"?>
+<io.spaceapi.community.myhackerspace.AboutLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingStart="8dp"
+    android:paddingTop="8dp"
+    android:orientation="vertical">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal">
+
+        <TextView
+            android:id="@+id/about_version_title"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/about_version_title" />
+
+        <TextView
+            android:id="@+id/about_version_text"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:layout_marginStart="2sp"
+            android:text="{version}" />
+    </LinearLayout>
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal">
+
+        <TextView
+            android:id="@+id/about_license_title"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/about_license_title" />
+
+        <TextView
+            android:id="@+id/about_license_text"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:layout_marginStart="2sp"
+            android:text="@string/about_license_text" />
+    </LinearLayout>
+
+    <TextView
+        android:id="@+id/about_repository"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:autoLink="web"
+        android:text="@string/about_repository_url" />
+
+</io.spaceapi.community.myhackerspace.AboutLayout>

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

@@ -44,6 +44,7 @@ Licensed under GNU's GPL 3, see README
     <string name="prefs_transparent_summary">Widget\'s background will be transparent instead of gray</string>
     <string name="prefs_text_title">Show status text</string>
     <string name="prefs_text_summary">Add a text with the status under the widget</string>
+    <string name="prefs_about_title">About This App</string>
 
     <string name="api_status">Status</string>
     <string name="api_lastchange">Last change: </string>
@@ -88,4 +89,11 @@ Licensed under GNU's GPL 3, see README
     <string name="api_sensor_radiation">Radiation</string>
     <string name="api_sensor_total_member_count">Member Count</string>
     <string name="api_sensor_account_balance">Account Balance</string>
+
+
+    <string name="about_version_title">App Version:</string>
+    <string name="about_license_title">License:</string>
+    <string name="about_license_text">GNU GENERAL PUBLIC LICENSE Version 3</string>
+    <string name="about_visit_repository">Visit Repository</string>
+    <string name="about_repository_url" translatable="false">https://github.com/spaceapi-community/my-hackerspace</string>
 </resources>

app/src/main/res/xml/preferences.xml

@@ -43,4 +43,7 @@
         android:defaultValue="30"
         android:inputType="number" />
 
+    <PreferenceCategory android:title="@string/prefs_about_title">
+    </PreferenceCategory>
+
 </PreferenceScreen>