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Hands-On Android UI Development
book

Hands-On Android UI Development

by Jason Morris
November 2017
Beginner to intermediate
348 pages
7h 57m
English
Packt Publishing
Content preview from Hands-On Android UI Development

Chapter 12 - Customizing Widgets and Layouts

  1. When rendering specialized graphics for a custom widget, you need to do which of these?
    • Override the onDraw method
  2. Where should you create instances of graphics primitives such as Drawable, Paint, and Path for rendering in onDraw?
    • Anywhere that doesn't affect onDraw directly
  1. What are the two phases involved in the layout process?
    • Measurement and then layout
  2. When painting a Drawable object, you need to do which of the following?
    • Pass it a valid Canvas object
  3. To tell the platform that a widget needs to repaint itself (from the main thread), you use which of these?
    • View.invalidate()
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Publisher Resources

ISBN: 9781788475051