add simple about screen

Author: hvdwolf

app/build.gradle

@@ -6,8 +6,8 @@ android {
         applicationId "org.hvdw.fythwonekey"
         minSdkVersion 21
         targetSdkVersion 27
-        versionCode 3
-        versionName "1.2"
+        versionCode 4
+        versionName "1.2.2"
     }
     buildTypes {
         release {

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

@@ -69,4 +69,11 @@
     <string name="accoff_syscall">Execute system call(s) to execute linux command/script.</string>
     <string name="accoff_syscall_summary">Separate multiple commands with a semicolon (;)</string>
 
+    <string name="about_info_screen">Information Screen</string>
+    <string name="about">About</string>
+    <string name="xda_discussion_title">XDA Discussion thread</string>
+    <string name="xda_discussion_summary">Discuss or ask questions about this apk on XDA</string>
+    <string name="github_title">Source code</string>
+    <string name="github_summary">Explore the source code of FytHWOneKey on Github</string>
+
 </resources>

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

@@ -219,7 +219,7 @@
             android:defaultValue="" />
     </PreferenceScreen>
 
- <!-- Finally the "preferece screen" to start the lit apps listactivity -->
+ <!-- Finally the "preference screen" to start the list apps listactivity -->
     <Preference
         android:key="listapps"
         android:title="@string/listapps_title"
@@ -230,4 +230,30 @@
                 android:targetClass="org.hvdw.fythwonekey.ListInstalledApps" />
     </Preference>
 
+    <!-- About screen -->
+    <PreferenceScreen
+        android:title="@string/about_info_screen"
+        android:key="about_info">
+        <PreferenceCategory
+            android:key="ABOUT"
+            android:title="@string/about">
+            <Preference
+                android:key="xda_discussion"
+                android:title="@string/xda_discussion_title"
+                android:summary="@string/xda_discussion_summary">
+                <intent
+                    android:action="android.intent.action.VIEW"
+                    android:data="https://forum.xda-developers.com/android-auto/android-head-units/fyt-units-rooted-app-to-modify-unit-t3912075" />
+            </Preference>
+            <Preference
+                android:key="github"
+                android:title="@string/github_title"
+                android:summary="@string/github_summary">
+                <intent
+                    android:action="android.intent.action.VIEW"
+                    android:data="https://github.com/hvdwolf/FytHWOnekey" />
+            </Preference>
+        </PreferenceCategory>
+    </PreferenceScreen>
+
 </PreferenceScreen>