*Added about menu with GPLv2 license

.gitignore

@@ -0,0 +1,7 @@
+/import-summary.txt
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build

README

@@ -16,7 +16,7 @@ Current features:
 * Sensor discovery
 * Screen rotation
 * Runs in the background
-* Optional data logging in csv format to /sdcard/mtpms
+* Optional data logging in csv format to /sdcard/mTPMS
 * English language, please contact me if you would like to help with a translation
 
 How to use:

app/src/main/java/org/thecongers/mtpms/MainActivity.java

@@ -53,8 +53,10 @@ of the License, or (at your option) any later version.
 import android.widget.TextView;
 import android.widget.Toast;
 
+import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStream;
+import java.io.InputStreamReader;
 import java.lang.reflect.Method;
 import java.util.Set;
 import java.util.UUID;
@@ -512,6 +514,14 @@ public boolean onOptionsItemSelected(MenuItem item)
                 settings.edit().remove("prefFrontID").apply();
                 settings.edit().remove("prefRearID").apply();
                 return true;
+            case R.id.action_about:
+                // About was selected
+                AlertDialog.Builder builder = new AlertDialog.Builder(this);
+                builder.setTitle(getResources().getString(R.string.alert_about_title));
+                builder.setMessage(readRawTextFile(this, R.raw.about));
+                builder.setPositiveButton(getResources().getString(R.string.alert_about_button), null);
+                builder.show();
+                return true;
             case R.id.action_exit:
                 // Exit menu item was selected
                 if (logger != null){
@@ -731,6 +741,27 @@ public void run() {
         }
     }
 
+    // Read raw text file
+    private static String readRawTextFile(Context ctx, int resId)
+    {
+        InputStream inputStream = ctx.getResources().openRawResource(resId);
+
+        InputStreamReader inputreader = new InputStreamReader(inputStream);
+        BufferedReader buffreader = new BufferedReader(inputreader);
+        String line;
+        StringBuilder text = new StringBuilder();
+
+        try {
+            while (( line = buffreader.readLine()) != null) {
+                text.append(line);
+                text.append('\n');
+            }
+        } catch (IOException e) {
+            return null;
+        }
+        return text.toString();
+    }
+
     //Send Notification
     private void Notify(String notificationMessage)
     {

app/src/main/res/menu/main.xml

@@ -9,6 +9,11 @@
         android:orderInCategory="100"
         app:showAsAction="never"
         android:title="@string/action_sensorReset"/>
+    <item
+        android:id="@+id/action_about"
+        android:orderInCategory="100"
+        app:showAsAction="never"
+        android:title="@string/action_about"/>
     <item
         android:id="@+id/action_exit"
         android:orderInCategory="100"