File list (Check if you may need any files):
WheelView
.........\.classpath
.........\.project
.........\AndroidManifest.xml
.........\assets
.........\bin
.........\...\classes
.........\...\classes.dex
.........\...\.......\com
.........\...\.......\...\view
.........\...\.......\...\....\WheelView
.........\...\.......\...\....\.........\ArrayWheelAdapter.class
.........\...\.......\...\....\.........\R$array.class
.........\...\.......\...\....\.........\R$attr.class
.........\...\.......\...\....\.........\R$drawable.class
.........\...\.......\...\....\.........\R$id.class
.........\...\.......\...\....\.........\R$layout.class
.........\...\.......\...\....\.........\R$string.class
.........\...\.......\...\....\.........\R.class
.........\...\.......\...\....\.........\WheelAdapter.class
.........\...\.......\...\....\.........\WheelView$1.class
.........\...\.......\...\....\.........\WheelView$2.class
.........\...\.......\...\....\.........\WheelView$OnWheelChangedListener.class
.........\...\.......\...\....\.........\WheelView$OnWheelScrollListener.class
.........\...\.......\...\....\.........\WheelView.class
.........\...\.......\...\....\.........\WheelViewActivity.class
.........\...\res
.........\...\resources.ap_
.........\...\...\drawable-hdpi
.........\...\...\.............\ic_launcher.png
.........\...\...\.............\multi_selector_bg.png
.........\...\...\drawable-ldpi
.........\...\...\.............\ic_launcher.png
.........\...\...\drawable-mdpi
.........\...\...\.............\ic_launcher.png
.........\...\WheelView.apk
.........\gen
.........\...\com
.........\...\...\view
.........\...\...\....\WheelView
.........\...\...\....\.........\R.java
.........\proguard.cfg
.........\project.properties
.........\res
.........\...\drawable
.........\...\drawable-hdpi
.........\...\.............\ic_launcher.png
.........\...\.............\multi_selector_bg.png
.........\...\drawable-ldpi
.........\...\.............\ic_launcher.png
.........\...\drawable-mdpi
.........\...\.............\ic_launcher.png
.........\...\........\wheel_bg.xml
.........\...\........\wheel_val.xml
.........\...\layout
.........\...\......\main.xml
.........\...\values
.........\...\......\strings.xml
.........\src
.........\...\com
.........\...\...\view
.........\...\...\....\WheelView
.........\...\...\....\.........\ArrayWheelAdapter.java
.........\...\...\....\.........\WheelAdapter.java
.........\...\...\....\.........\WheelView.java
.........\...\...\....\.........\WheelViewActivity.java
教程说明见这里.txt