File list (Check if you may need any files):
MyXmppDemo\.classpath
..........\.project
..........\.settings\org.eclipse.core.resources.prefs
..........\.........\org.eclipse.jdt.core.prefs
..........\AndroidManifest.xml
..........\bin\AndroidManifest.xml
..........\...\classes\com\example\activity\ChatActivity$1.class
..........\...\.......\...\.......\........\ChatActivity$2.class
..........\...\.......\...\.......\........\ChatActivity$ChatReceiver.class
..........\...\.......\...\.......\........\ChatActivity$MyAdapter$ViewHolder.class
..........\...\.......\...\.......\........\ChatActivity$MyAdapter.class
..........\...\.......\...\.......\........\ChatActivity.class
..........\...\.......\...\.......\........\ContactsActivity$1.class
..........\...\.......\...\.......\........\ContactsActivity$2.class
..........\...\.......\...\.......\........\ContactsActivity$MyAdapter.class
..........\...\.......\...\.......\........\ContactsActivity$MyPagerAdapter.class
..........\...\.......\...\.......\........\ContactsActivity.class
..........\...\.......\...\.......\........\LoginActivity$LoginAsyncTask.class
..........\...\.......\...\.......\........\LoginActivity.class
..........\...\.......\...\.......\........\MultiChatActivity$1.class
..........\...\.......\...\.......\........\MultiChatActivity$2.class
..........\...\.......\...\.......\........\MultiChatActivity$MultiChatActivityReceiver.class
..........\...\.......\...\.......\........\MultiChatActivity$MyAdapter$ViewHolder.class
..........\...\.......\...\.......\........\MultiChatActivity$MyAdapter.class
..........\...\.......\...\.......\........\MultiChatActivity.class
..........\...\.......\...\.......\........\MyApplication.class
..........\...\.......\...\.......\db\DBHelper$SqlLiteHelper.class
..........\...\.......\...\.......\..\DBHelper.class
..........\...\.......\...\.......\fragment\ContactsFragment$1.class
..........\...\.......\...\.......\........\ContactsFragment$2.class
..........\...\.......\...\.......\........\ContactsFragment$3.class
..........\...\.......\...\.......\........\ContactsFragment$ContactsReceiver.class
..........\...\.......\...\.......\........\ContactsFragment$MyAdapter.class
..........\...\.......\...\.......\........\ContactsFragment.class
..........\...\.......\...\.......\........\GroupFragment$1.class
..........\...\.......\...\.......\........\GroupFragment$2.class
..........\...\.......\...\.......\........\GroupFragment$3.class
..........\...\.......\...\.......\........\GroupFragment$GroupFragmentRceiver.class
..........\...\.......\...\.......\........\GroupFragment$MyAdapter.class
..........\...\.......\...\.......\........\GroupFragment.class
..........\...\.......\...\.......\........\NewFriendFragment$MyAdapter$1.class
..........\...\.......\...\.......\........\NewFriendFragment$MyAdapter.class
..........\...\.......\...\.......\........\NewFriendFragment$NewFriendFragmentReceiver.class
..........\...\.......\...\.......\........\NewFriendFragment.class
..........\...\.......\...\.......\Iactivity\ActivitySupport$1.class
..........\...\.......\...\.......\.........\ActivitySupport.class
..........\...\.......\...\.......\.........\IActivitySupport.class
..........\...\.......\...\.......\modle\ChatImage.class
..........\...\.......\...\.......\.....\ChatMessage.class
..........\...\.......\...\.......\.....\ChatText.class
..........\...\.......\...\.......\.....\ChatVoice.class
..........\...\.......\...\.......\.....\Group.class
..........\...\.......\...\.......\.....\Pic.class
..........\...\.......\...\.......\.....\SimpleUser.class
..........\...\.......\...\.......\.yxmppdemo\BuildConfig.class
..........\...\.......\...\.......\..........\R$attr.class
..........\...\.......\...\.......\..........\R$color.class
..........\...\.......\...\.......\..........\R$drawable.class
..........\...\.......\...\.......\..........\R$id.class
..........\...\.......\...\.......\..........\R$layout.class
..........\...\.......\...\.......\..........\R$menu.class
..........\...\.......\...\.......\..........\R$string.class
..........\...\.......\...\.......\......