The drum set is the instrument central to the rhythm section. It acts as the motor that drives the group. A drum set can contain a multitude of percussion instruments, but in jazz, it usually consists of only a few parts. The lowest drum, or bass drum, is played with a pedal. The hi-hat, also played with a pedal, is a duo of small cymbals that crash together.
A style resource defines the format and look for a UI. A style can be applied to an individual View (from within a layout file) or to an entire Activity or application (from within the manifest file). For more information about creating and applying styles, please read Styles and Themes.
Initially developed by Android, Inc., which Google bought in 2005, Android was unveiled in 2007, along with the founding of the Open Handset Alliance â a consortium of hardware, software, and telecommunication companies devoted to advancing open standards for mobile devices.ndroid provides the ability to run applications which change the default launcher and hence the appearance and externally visible behaviour of Android. These appearance changes include a multi-page dock or no dock, and many more changes to fundamental features of the user interface.