Head First Android开发指南：从初学者到专家的 Android 开发学习之路

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"Head First Android"概述 "Head First Android"是一本关于Android开发的图书，属于"Head First"系列书籍。这本书的特点是采用图文并茂的方式来讲解Android开发的知识，旨在让读者在学习的过程中保持兴趣和娱乐。下面是根据书籍的标题、描述、标签和部分内容生成的相关知识点： **Android开发基础** * Android是一种流行的移动操作系统，广泛应用于智能手机和平板电脑等设备。 * Android开发需要具备Java编程语言基础，并了解Android SDK的使用。 **Head First系列书籍的特点** * "Head First"系列书籍以其独特的教学风格和幽默感而闻名，能够让读者在学习的过程中保持兴趣和娱乐。 * 这本书的作者Jonathan Simon是一名经验丰富的Android开发专家，拥有多年开发经验。 **Android开发的重要概念** * Android的架构主要包括 Linux内核、系统库、应用程序框架和应用程序四个部分。 * Android应用程序的开发需要使用Java语言，并借助Android SDK提供的API和工具来实现。 * Android的UI组件主要包括Activity、Service、Broadcast Receiver和Content Provider四种类型。 **Android应用程序的生命周期** * Android应用程序的生命周期主要包括创建、启动、运行、暂停、恢复和销毁六个阶段。 * 在每个阶段，应用程序都需要执行特定的操作，以确保应用程序的正确运行。 **Android开发的常见问题** * Android开发中常见的问题包括内存泄露、异步编程、多线程编程等。 * 解决这些问题需要具备深入的编程知识和丰富的开发经验。 **Android开发的未来趋势** * Android开发的未来趋势包括人工智能、物联网、Augmented Reality等技术的应用。 * 这些技术将改变Android开发的面貌，提高Android应用程序的智能化和互动性。 "Head First Android"是一本非常实用的Android开发图书，能够帮助读者快速掌握Android开发的知识和技能。

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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Head First Android开发指南：从初学者到专家的 Android 开发学习之路

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head-first-android:阅读《 Head First Android开发》一书。 哇！

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Head First Android Development（Head First Android 开发）配套源码

head-first-android:阅读《 Head First Android开发》一书。哇！