added README

README.md

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+# Android Circular Progress Bar 
+A simple subclass of android.widget.ProgressBar that contains title and subtitile in the center.
+
+![Application screenshot](http://i1287.photobucket.com/albums/a628/Yu_Lang/device-2013-05-16-193338_zpsc4ab3018.png)
+
+## License
+Copyright (C) 2013 Leon Cheng
+Licensed under the Apache License, Verision 2.0
+
+## Layout
+Make sure you have attrs.xml, colors.xml, styles.xml
+
+Include the xml in the layout.  
+
+	<com.lylc.widget.circularprogressbar.example.CircularProgressBar
+        android:id="@+id/circularprogressbar1"
+    	style="@style/Widget.ProgressBar.Holo.CircularProgressBar"
+     	android:layout_width="120dip"
+    	android:layout_height="120dip"
+    	android:layout_marginTop="10dip"
+    	circular:subtitle="subtitle"
+    	circular:title="Title" />
+            
+## Styles
+There are 2 pre-defined styles to choose from, Widget.ProgressBar.Holo.CircularProgressBar, 
+Widget.ProgressBar.CircularProgressBar in styles.xml
+
+	<style name="Widget.ProgressBar.CircularProgressBar" parent="Widget">
+    	...
+    </style>
+
+    <style name="Widget.ProgressBar.Holo.CircularProgressBar" parent="Widget.ProgressBar.CircularProgressBar">
+    	...
+    </style>
+
+
+## Attributes
+There are few attributes defined in the attrs.xml.  
+Inorder to set the circularProgressBar attribute from the xml, make sure your layout xml contains an additional namespace.
+
+	xmlns:circular="http://schemas.android.com/apk/res/your_package_name"
+
+## Usage
+You can set the title, subtitle and the progress like so
+
+	CircularProgressBar c3 = (CircularProgressBar) findViewById(R.id.circularprogressbar3);
+	c3.setTitle("June");
+	c3.setSubTitle("2013");
+	c3.setProgress(42);
+
+Note that it is not using TextView for displaying; therefore, currently, it is limited to only
+text color.  
+
+You can also animate the progress bar to a specific number by 
+
+	c2.animateProgressTo(0, 77, new ProgressAnimationListener() {
+			
+			@Override
+			public void onAnimationStart() {				
+			}
+			
+			@Override
+			public void onAnimationProgress(int progress) {
+				c2.setTitle(progress + "%");
+			}
+			
+			@Override
+			public void onAnimationFinish() {
+				c2.setSubTitle("done");
+			}
+		});
+