integrate UnderlineTextView, add zxing info

OpenPGP-Keychain/res/layout/stickylist_header.xml

@@ -3,7 +3,7 @@
     android:layout_width="match_parent"
     android:layout_height="wrap_content" >
 
-    <se.emilsjolander.stickylistheaders.views.UnderlineTextView
+    <org.sufficientlysecure.keychain.ui.widget.UnderlineTextView
         android:id="@+id/stickylist_header_text"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"

OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/widget/UnderlineTextView.java

@@ -1,4 +1,20 @@
-package se.emilsjolander.stickylistheaders.views;
+/*
+ * Copyright (C) 2013 Eric Frohnhoefer
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.sufficientlysecure.keychain.ui.widget;
 
 import android.content.Context;
 import android.content.res.Resources;
@@ -9,9 +25,11 @@ import android.util.TypedValue;
 import android.widget.TextView;
 
 /**
+ * Copied from StickyListHeaders lib example
+ * 
  * @author Eric Frohnhoefer
  */
-public class UnderlineTextView  extends TextView {
+public class UnderlineTextView extends TextView {
     private final Paint mPaint = new Paint();
     private int mUnderlineHeight = 0;
 
@@ -31,7 +49,8 @@ public class UnderlineTextView  extends TextView {
 
     private void init(Context context, AttributeSet attrs) {
         Resources r = getResources();
-        mUnderlineHeight = (int)TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 2, r.getDisplayMetrics());
+        mUnderlineHeight = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 2,
+                r.getDisplayMetrics());
     }
 
     @Override

README.md

@@ -118,6 +118,10 @@ TODO
 
 On error see: http://code.google.com/p/zxing/issues/detail?id=1207
 
+## ZXing
+
+XZing classes were extracted from the ZXing library (http://code.google.com/p/zxing/).
+Only classes related to QR Code generation are utilized.
 
 ## Bouncy Castle