Android - Package Name convention

Question

For the  Hello World  example in android com  the package name is  package com example helloandroid    Is there any guideline standard to name this package   references would be nice

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http   docs oracle com javase tutorial java package namingpkgs html     Companies use their reversed Internet domain name to begin their   package names   for example  com example mypackage for a package named   mypackage created by a programmer at example com       Name collisions that occur within a single company need to be handled   by convention within that company  perhaps by including the region or   the project name after the company name  for example    com example region mypackage     If you have a company domain www example com  Then you should use   com example region projectname  If you own a domain name like example co uk than it should be   uk co example region projectname  If you do not own a domain  you should then use your email address   for name example com it should be   com example name region projectname

User · Answer

Android follows normal java package conventions plus here is an important snippet of text to read  this is important regarding the wide use of xml files while developing on android    The reason for having it in reverse order is to do with the layout on the storage media  If you consider each period       in the application name as a path separator  all applications from a publisher would sit together in the path hierarchy  So  for instance  packages from Adobe would be of the form   com adobe reader  Adobe Reader   com adobe photoshop  Adobe Photoshop   com adobe ideas  Adobe Ideas    Note that this is just an illustration and these may not be the exact package names    These could internally be mapped  respectively  to   com adobe reader  com adobe photoshop  com adobe ideas  The concept comes from Package Naming Conventions in Java  more about which can be read  here    http   en wikipedia org wiki Java package Package naming conventions  Source  http   www quora com Why-do-a-majority-of-Android-package-names-begin-with-com

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Com   commercial application  just like  com  most people register their app as a com app  First level   always the publishing entity s  name Second level  optional    sub-devison  group  or project name Final level   product name   For example he android launcher  home screen  is      Com Google android launcher

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But if your Android App is only for personal purpose or created by you alone  you can use   me app name app

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Generally the first 2 package  words  are your web address in reverse    You d have 3 here as convention  if you had a subdomain    So something stackoverflow produces would likely be in package com stackoverflow whatever customname  something asp net produces might be called net asp whatever customname omg srsly  something from mysubdomain toplevel com would be com toplevel mysubdomain whatever  Beyond that simple convention  the sky s the limit   This is an old linux convention for something that I cannot recall exactly

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The package name is used for unique identification for your application  Android uses the package name to determine if the application has been installed or not  The general naming is   com companyname applicationname  eg   com android Camera

[android] Android - Package Name convention

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