October 2019
Intermediate to advanced
624 pages
20h 7m
English
book
Android Programming: The Big Nerd Ranch Guide, 4th Edition
by Bill Phillips, Chris Stewart, Kristin Marsicano, Brian Gardner
Content preview from Android Programming: The Big Nerd Ranch Guide, 4th Edition
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Retained Fragments
By default, the retainInstance property of a fragment is false.
This means it is not retained but is destroyed and re-created on rotation along with the activity that hosts it.
Calling setRetainInstance(true) retains the fragment.
When a fragment is retained, the fragment is not destroyed with the activity.
Instead, it is preserved and passed along intact to the new activity.
When you retain a fragment, you can count on all of its instance variables to keep the same values. When you reach for them, they are simply there.
Rotation and retained fragments
Let’s take a closer look at how retained fragments work. Retained fragments take advantage of the fact that a fragment’s view can be destroyed and re-created ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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