March 2013
Beginner to intermediate
580 pages
16h 11m
English
Content preview from Android Programming: The Big Nerd Ranch Guide
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32Custom Views and Touch Events
In this chapter, you will learn how to handle touch events by writing a custom subclass of View named BoxDrawingView. This View will draw boxes in response to the user touching the screen and dragging.
Figure 32.1 Boxes drawn in many shapes and sizes
Setting Up the DragAndDraw Project
The BoxDrawingView class will be the star of a new project named DragAndDraw. Select New → Android Application Project. Configure the project as shown in Figure 32.2. Then create a blank activity named DragAndDrawActivity.
Figure 32.2 Creating DragAndDraw
Setting up DragAndDrawActivity
DragAndDrawActivity will be a subclass of SingleFragmentActivity ...
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