《Head First Android Development》：打造Android开发专家的趣味之旅

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《Head First Android Development》是一本由Jonathan Simon撰写的面向Android开发者的专业书籍，旨在帮助读者通过轻松愉快的方式迅速成为Android开发的专家。该书在2011年首次出版，版权由作者所有，且享有美国版权法保护。这本书是Head First系列的一部分，系列创作者包括Kathy Sierra和Bert Bates，编辑为Brian Sawyer。《Head First Android Development》的特点在于它采用了创新的“图解学习”方法，将复杂的概念以生动活泼的方式呈现，使读者在享受阅读的过程中不断掌握技能。书中内容涵盖了Android开发的基础至进阶知识，包括Android应用程序的基本架构、用户界面设计、事件处理、网络通信、数据库管理以及各种API的使用等。此外，该书还特别关注于实践应用，提供了大量的实例和练习，帮助读者将理论知识转化为实际操作能力。书中还提到了O'Reilly Media作为出版商的信息，这家公司在全球多个城市设有办公室，包括北京、剑桥、法纳姆、金斯林、塞巴斯托波尔、台北和东京。他们提供纸质版和在线版两种形式，以便不同需求的读者获取。对于教育机构或商业客户，O'Reilly Media也提供了定制购买和服务选项，可以通过电话或电子邮件联系他们的企业销售部门获取更多信息。印刷历史部分显示，本书在2011年10月首次发行，O'Reilly Media的标志体现了其在业界的声誉。封面设计由Karen Montgomery负责，生产编辑、索引员、校对员和页览者的名字也列了出来，这些都体现了出版流程的专业性。《Head First Android Development》是一本以实践为导向、注重用户体验的学习资源，适合初学者和希望提升技能的开发者使用，旨在用创新的教学方法引领读者快速进入Android开发的世界。无论是对于个人学习还是企业培训，这本书都是一个理想的工具。

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.

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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.

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