Pro Android 4

Interview Questions

You can use the following questions as a guide to consolidate your understanding of this chapter:

1. What are some differences between onTouchEvent() and onTouch()?
2. What manifest tag should you use to indicate to Android Market that your application requires a touch screen?
3. If you want a view to continue to receive touch events in the current touch sequence, do you return true or false from the callback?
4. What is the first action you’ll receive in a touch sequence?
5. What is the last action you’ll receive?
6. True or false: a MotionEvent object is created for every single touch event.
7. What precautions should you take when using getSize() and getPressure() with MotionEvent objects?
8. When is it appropriate to recycle a MotionEvent object? ...