Android UI Basics


  • Views 
    • View IDs 
    • Drawing of Views 
    • Focus handling 
  • Styles and themes 
    • Inheritance of styles 
    • Style properties 
    • Theme 
    • Built-in styles and themes


View Tree 

  • All of the views in a window are arranged in a single View tree. 
  • You can add views either from code or by specifying a tree of views in one or more XML layout files. 
  • There are many specialized subclasses of views that are capable of displaying text, images, or other content.


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