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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Challenge: Preloading and Caching
Users accept that not everything can be instantaneous. (Well, most users.) Even so, programmers strive for perfection.
To approach instantaneity, most real-world apps augment the code you have here in two ways: adding a caching layer and preloading images.
A cache is a place to stash a certain number of Bitmap objects so that they stick around even when you are done using them. A cache can only hold so many items, so you need a strategy to decide what to keep when your cache runs out of room. Many caches use a strategy called LRU, or “least recently used.” When you are out of room, the cache gets rid of the least recently used item.
The Android support library has a class called LruCache
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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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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.