High imitation based on android2.2 (Froyo) Contacts, application programming source code, a good reference.

.classpath
.project
.settings
.........\org.eclipse.core.resources.prefs
AndroidManifest.xml
assets
bin
...\classes
...\classes.dex
...\.......\com
...\.......\...\xcontacts
...\.......\...\.........\activities
...\.......\...\.........\..........\ContactsInOneGroup$1.class
...\.......\...\.........\..........\ContactsInOneGroup.class
...\.......\...\.........\..........\EditContactActivity$1.class
...\.......\...\.........\..........\EditContactActivity.class
...\.......\...\.........\..........\GroupsActivity$1.class
...\.......\...\.........\..........\GroupsActivity$2.class
...\.......\...\.........\..........\GroupsActivity$3.class
...\.......\...\.........\..........\GroupsActivity.class
...\.......\...\.........\..........\MainActivity$1.class
...\.......\...\.........\..........\MainActivity.class
...\.......\...\.........\..........\R$array.class
...\.......\...\.........\..........\R$attr.class
...\.......\...\.........\..........\R$color.class
...\.......\...\.........\..........\R$drawable.class
...\.......\...\.........\..........\R$id.class
...\.......\...\.........\..........\R$layout.class
...\.......\...\.........\..........\R$string.class
...\.......\...\.........\..........\R.class
...\.......\...\.........\..........\ViewContactActivity.class
...\.......\...\.........\adapter
...\.......\...\.........\.......\ContactItem.class
...\.......\...\.........\.......\MyCursorAdapter.class
...\.......\...\.........\ui
...\.......\...\.........\..\EmailItem$1.class
...\.......\...\.........\..\EmailItem$2.class
...\.......\...\.........\..\EmailItem.class
...\.......\...\.........\..\EmailItemsContainer$1.class
...\.......\...\.........\..\EmailItemsContainer.class
...\.......\...\.........\..\ImItem$1.class
...\.......\...\.........\..\ImItem$2.class
...\.......\...\.........\..\ImItem.class
...\.......\...\.........\..\ImItemsContainer$1.class
...\.......\...\.........\..\ImItemsContainer.class
...\.......\...\.........\..\model
...\.......\...\.........\..\.....\AbstractItem.class
...\.......\...\.........\..\.....\AbstractItemsContainer.class
...\.......\...\.........\..\.....\MyLinearLayout.class
...\.......\...\.........\..\OrganizationItem$1.class
...\.......\...\.........\..\OrganizationItem$2.class
...\.......\...\.........\..\OrganizationItem.class
...\.......\...\.........\..\OrganizationItemsContainer$1.class
...\.......\...\.........\..\OrganizationItemsContainer.class
...\.......\...\.........\..\PhoneItem$1.class
...\.......\...\.........\..\PhoneItem$2.class
...\.......\...\.........\..\PhoneItem.class
...\.......\...\.........\..\PhoneItemsContainer$1.class
...\.......\...\.........\..\PhoneItemsContainer.class
...\.......\...\.........\..\PostalItem$1.class
...\.......\...\.........\..\PostalItem$2.class
...\.......\...\.........\..\PostalItem.class
...\.......\...\.........\..\PostalItemsContainer$1.class
...\.......\...\.........\..\PostalItemsContainer.class
...\.......\...\.........\..\WebsiteItem$1.class
...\.......\...\.........\..\WebsiteItem.class
...\.......\...\.........\..\WebsiteItemsContainer$1.class
...\.......\...\.........\..\WebsiteItemsContainer.class
...\.......\...\.........\utils
...\.......\...\.........\.....\MyDialog$1$1.class
...\.......\...\.........\.....\MyDialog$1$2.class
...\.......\...\.........\.....\MyDialog$1.class
...\.......\...\.........\.....\MyDialog.class
...\.......\...\.........\.....\MyLog.class
...\.......\...\.........\.....\MyTextWachter.class
...\res
...\resources.ap_
...\...\drawable-hdpi
...\...\.............\ic_btn_round_minus.png
...\...\.............\ic_btn_round_plus.png
...\...\.............\ic_contact_list_picture.png
...\...\.............\ic_edit_contact.png
...\...\.............\ic_launcher_contacts.png
...\XContacts.apk
gen
...\com
...\...\xcontacts
...\...\.........\activities
...\...\.........\..........\R.java
proguard.cfg
project.properties
res
...\drawable-hdpi
...\.............\ic_btn_round_minus.png
...\.............\ic_btn_round_plus.png
...\.............\ic_contact_list_picture.png
...\.............\ic_edit_contact.png
...

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