《Head First Android Development》：轻松成为Android开发专家指南

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《Head First Android Development》是一本由Jonathan Simon所著的英文专业书籍，专为那些希望深入学习Android开发并同时保持兴趣和娱乐性的读者设计。该书出版于2011年，由著名的O'Reilly Media公司发行，享有版权。此书系列的创作者包括Kathy Sierra和Bert Bates，编辑工作由Brian Sawyer负责。本书的特点在于其独特的"Head First"教学风格，即通过吸引人的互动方式和创新的视觉元素，使复杂的技术主题变得易于理解。封面设计者Karen Montgomery和多位幕后工作人员如生产编辑、索引员、校对员等共同确保了内容的专业性和质量。该书适用于教育、商业或销售推广用途，并提供在线版本供读者选择，可通过safari.oreilly.com获取。《Head First Android Development》的核心内容涵盖了Android应用开发的基础到高级概念，包括Android平台概述、UI设计、数据存储与检索、网络通信、服务与广播以及单元测试等方面。作者旨在帮助读者从零开始掌握Android开发技术，通过实例驱动的学习方法，使读者在轻松愉快的阅读过程中逐步成为Android开发的专家。书中强调实践的重要性，鼓励读者通过编写代码和解决实际问题来深化理解。此外，由于版权原因，具体印刷历史显示该书于2011年10月首次发行，并且O'Reilly Media的标志是其注册商标。《Head First Android Development》是一本实用且富有吸引力的Android开发教程，适合任何希望在这个领域有所建树的开发者，无论他们是初学者还是寻求进一步提升技能的中级开发者。通过这本书，读者不仅能获取丰富的理论知识，还能培养解决问题和创新思维的能力，从而在Android开发领域取得成功。

xvi intro

how to use this book

Here’s what WE did:

We used pictures, because your brain is tuned for visuals, not text. As far as your brain’s

concerned, a picture really is worth a thousand words. And when text and pictures work

together, we embedded the text in the pictures because your brain works more effectively

when the text is within the thing the text refers to, as opposed to in a caption or buried in the

text somewhere.

We used redundancy, saying the same thing in different ways and with different media types,

and multiple senses, to increase the chance that the content gets coded into more than one area

of your brain.

We used concepts and pictures in unexpected ways because your brain is tuned for novelty,

and we used pictures and ideas with at least some emotional content, because your brain

is tuned to pay attention to the biochemistry of emotions. That which causes you to feel

something is more likely to be remembered, even if that feeling is nothing more than a little

humor, surprise, or interest.

We used a personalized, conversational style, because your brain is tuned to pay more

attention when it believes you’re in a conversation than if it thinks you’re passively listening

to a presentation. Your brain does this even when you’re reading.

We included more than 80 activities, because your brain is tuned to learn and remember

more when you do things than when you read about things. And we made the exercises

challenging-yet-do-able, because that’s what most people prefer.

We used multiple learning styles, because you might prefer step-by-step procedures, while

someone else wants to understand the big picture first, and someone else just wants to see

an example. But regardless of your own learning preference, everyone benefits from seeing the

same content represented in multiple ways.

We include content for both sides of your brain, because the more of your brain you

engage, the more likely you are to learn and remember, and the longer you can stay focused.

Since working one side of the brain often means giving the other side a chance to rest, you

can be more productive at learning for a longer period of time.

And we included stories and exercises that present more than one point of view,

because your brain is tuned to learn more deeply when it’s forced to make evaluations and

judgments.

We included challenges, with exercises, and by asking questions that don’t always have

a straight answer, because your brain is tuned to learn and remember when it has to work at

something. Think about it—you can’t get your body in shape just by watching people at the

gym. But we did our best to make sure that when you’re working hard, it’s on the right things.

That you’re not spending one extra dendrite processing a hard-to-understand example,

or parsing difficult, jargon-laden, or overly terse text.

We used people. In stories, examples, pictures, etc., because, well, because you’re a person.

And your brain pays more attention to people than it does to things.

www.it-ebooks.info

you are here 4 xvii

the intro

So, we did our part. The rest is up to you. These tips are a

starting point; listen to your brain and figure out what works

for you and what doesn’t. Try new things.

Drink water. Lots of it.

Your brain works best in a nice bath of fluid.

Dehydration (which can happen before you ever

feel thirsty) decreases cognitive function.

Get your hands dirty!

There’s only one way to learn to Android: get

your hands dirty. And that’s what you’re going to

do throughout this book. Android Development

is a skill, and the only way to get good at it is to

practice. We’re going to give you a lot of practice:

every chapter has exercises that pose a problem for

you to solve. Don’t just skip over them—a lot of the

learning happens when you solve the exercises. We

included a solution to each exercise—don’t be afraid

to peek at the solution if you get stuck! (It’s easy to

get snagged on something small.) But try to solve

the problem before you look at the solution. And

definitely get it working before you move on to the

next part of the book.

Feel something.

Your brain needs to know that this matters. Get

involved with the stories. Make up your own

captions for the photos. Groaning over a bad joke

is still better than feeling nothing at all.

Listen to your brain.

Pay attention to whether your brain is getting

overloaded. If you find yourself starting to skim

the surface or forget what you just read, it’s time

for a break. Once you go past a certain point, you

won’t learn faster by trying to shove more in, and

you might even hurt the process.

Talk about it. Out loud.

Speaking activates a different part of the brain. If

you’re trying to understand something, or increase

your chance of remembering it later, say it out loud.

Better still, try to explain it out loud to someone else.

You’ll learn more quickly, and you might uncover

ideas you hadn’t known were there when you were

reading about it.

Make this the last thing you read before bed.

Or at least the last challenging thing.

Part of the learning (especially the transfer to

long-term memory) happens

after

you put the book

down. Your brain needs time on its own, to do more

processing. If you put in something new during that

processing time, some of what you just learned will

be lost.

Read the “There are No Dumb Questions”

That means all of them. They’re not optional

sidebars, they’re part of the core content!

Don’t skip them.

Cut this out and stick

it on your refrigerator.

Here’s what YOU can do to bend

your brain into submission

Do the exercises. Write your own notes.

We put them in, but if we did them for you, that

would be like having someone else do your workouts

for you. And don’t just look at the exercises. Use a

pencil. There’s plenty of evidence that physical

activity

while

learning can increase the learning.

Don’t just read. Stop and think. When the book asks

you a question, don’t just skip to the answer. Imagine

that someone really is asking the question. The

more deeply you force your brain to think, the better

chance you have of learning and remembering.

Slow down. The more you understand, the

less you have to memorize.

www.it-ebooks.info

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