Free Trial

Safari Books Online is a digital library providing on-demand subscription access to thousands of learning resources.

  • Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint

The APK File

A variant of the JAR format used for compression and archival, APK is the file format used to distribute and install an Android mobile application. You can open an APK file using an archive tool such as WinZip or StuffIt Expander to see what is inside it. An APK file typically includes .swf and application.xml files containing assets, as well as a res folder which contains icons.

Creating the Application Icon

The default system icon is an Android-green icon. Icons need to be 36×36-, 48×48-, or 72×72-pixel PNG images. They are used for low-, medium-, and high-density screens, respectively.

You should make your icon stand out, while clearly identifying your application. Google provides guidelines on how to make icons, and provides a Photoshop template, at http://developer.android.com/guide/practices/ui_guidelines/icon_design.html.


  

You are currently reading a PREVIEW of this book.

                                                                                                                    

Get instant access to over $1 million worth of books and videos.

  

Start a Free 10-Day Trial


  
  • Safari Books Online
  • Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint