An Introduction to Android Wear Google Developers English Chinese (Simplified)

An Introduction to Android WearYouTube↗ IA↗(long shot)
Science & Technology 251.3K views 1.3K likes 86 dislikes 18 Jun 2014

Google for Developers 2.7M subscribers United States YouTube↗

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TIMOTHY JORDAN: Hi, my name is Timothy Jordan.

大家好我是Timothy Jordan

I'm a developer advocate here at Google,

我是 Google 的开发者支持团队

and I'd like to give you a quick introduction to Android Wear.

我来简单的为大家介绍一下 Android Wear

Android Wear is a set of APIs that extends the Android

Android Wear 是一套 API（应用程序编程接口）

platform to a new generation of wearables.

它扩展了安卓的可穿戴平台

Rich notifications can appear on the wearable,

可穿戴设备上可以显示丰富的通知

with no modification to the existing Android app.

并且不用修改已有的安卓应用

The developer can add just a few more lines of code

开发者只需添加几行代码

to extend the wearable experience

就可以扩展到可穿戴设备上运行

or go even deeper, by building an app just for the wearable.

或者更进一步构建一个在可穿戴设备上运行的应用

Before we dive into the details of the platform,

在介绍可穿戴平台的细节之前

let's take a step back.

让我们先退一步

What's wrong with this picture?

图片中有什么问题吗

We spent some time looking at technology usage

我们花了一些时间在科技产品上

and thought deeply about the ways

并且想方设法

to help you stay more connected to the digital world.

让你保持与数字世界的紧密连接

But also more engaged with what's happening around you.

但是也要关心你周围的事

Android Wear looks to address this

Android Wear 想通过只在你需要的时候

by showing you useful information the moment you

展示给你有用的信息来解决这个问题

need it, and just in a glance.

你只需要瞥一眼就可以

Let's look at that in a more technical way.

让我们更技术性地来看这个问题

This is your day with your phone.

这是你一天使用手机的情况

Notice the length of time it takes

注意你拿出手机

to pull out your phone from your pocket,

解锁找到你想要的

unlock it, navigate to what you want, and then engage with it.

然后使用它所消耗的时间

There's a hefty time and attention cost,

这消耗了许多时间和注意力

even for interactions that should only require a moment.

这些交互应该在一瞬间完成

This is the same set of interactions on a wearable.

这是同样在可穿戴设备上的交互

Notice the reduced overhead per interaction.

注意减少了每次互动的开销

Now this is what we mean by more present in the real world,

这就是我们所指的身在现实世界

and yet more connected to the virtual world.

同时还与虚拟世界相连

What does this mean for your development?

这对于你的开发意味着什么

Well, to start with, and this is important,

在开始前先说一个重要的事

it's a fundamentally different user interaction model.

那就是完全不同的用户交互模型

And you can tell just by looking at this device.

你可以通过观察这些设备来了解

It's a fundamentally different device from other mobile devices.

这些完全不同于手机

To really nail the user experience,

为了真正提高用户体验

you've got to rethink it a little.

你需要重新思考一下

When considering which features of your service

当思考你的应用有哪些特性时

you'd like to make available on the wrist, consider this question.

在手腕上可以有哪些可做的想想这个问题

What couldn't we do on the phone that we can now

什么事我们在手机上做不了但是可以在手腕上做

do on the wrist? What now becomes possible with the user?

对用户来说什么可以变成可能

And then focus on that.

这是你要关注的

Also, you've got to try it.

或者你应该实际试一下

It may sound silly, but once you get that emulator up

可能听起来很傻但是一旦你模拟某个情景

and running, stand up at your desk

从你的桌子前站起来

and pretend you're walking between meetings or across the street.

想象你走会议之间行走或者穿过马路

Something to get yourself in the situation,

设身处地的思考

so you know what it feels like to use the service on the go.

你就会发现你需要什么样的应用了。

Here's an example of what we mean

这里有一个例子

by a very basic but essential difference.

显示了基本并且本质的不同

This is the app experience on your phone.

这是你手机上的应用经历

Now we've trained users to collect these shiny objects,

我们教用户们整理好这些闪亮的图标

and then search for them when they

当需要的时候找到那个图标

want to do something, which works OK on a phone.

这在手机上行得通

But if we put these same shiny objects on a wearable, well,

但是如果我们把同样的图标放到可穿戴设备上

it just doesn't make sense.

就行不通了

It would be the same time consuming paradigm,

相同的使用模式

but on a device intended to reduce those parts of the interaction.

在一个意在减少交互消耗的设备上

It just doesn't make sense.

这是行不通的

How do we get outside of this paradigm?

我们怎么来突破这个模式

How do we get past this grid of icons?

我们如何突破网格图标

This is the Android Wear interface.

这就是Android Wear的界面

It's simple, glanceable, and built around microinteractions.

简洁易懂并且微互动

The interface is divided into two primary behaviors.

界面分为两个基本操作

The user can talk to the wearable.

用户可以用语言和可穿戴设备交流

You can think of these as actions.

你可以认为这是一种动作

The user might say, OK Google, and then any voice command

用户可以说 “OK Google” 之后任何语音指令

is available to them.

都是可执行的

The wearable can talk to the user.

可穿戴设备也可以通过语言反馈给用户

Now think of this as a context stream.

你可以把这个视为一个环境流

It's sort of like enhanced notifications

它有点像加强的通知

that matter to the user right now,

它对用户很重要

because it's the right time or place.

因为它在正确的时间或者地方通知用户

Let's talk about developing with Android Wear.

我们来聊一聊 Android Wear 的开发

First, notifications.

第一点通知

The notifications on your phone can also be displayed on the wearable.

手机上的通知也可以在可穿戴设备上显示

And to get this done you don't have to do anything.

而这个你不需要做任何事

It just works out of the box.

这是现成的

Also, notifications that buzz or sound on the companion device,

同样的你配对的设备如你的手机上的通知震动或者发声

such as your phone, will also buzz on the wearable.

你的可穿戴设备也会跟着震动

Enhanced notifications will also show up on the wearable.

增强的通知也会在可穿戴设备上显示

And again, to get this done you still don't have to do anything.

同样你也不需要做任何事

It also already works out of the box.

这也是现成的

There are a few things that you can do with your notifications,

针对于可穿戴设备下面这些事你是

specifically on the wearable.

可以对通知做的

And these do require a few lines of code.

你需要编写少量代码

Stacks allow you to bundle multiple notifications

Stack 使你可以捆绑多个通知

together. Think inbox style notifications.

想象 inbox 式的

They give you the ability to show more than one glanceable

页（Page）可以给用户展示

screen of information to the user for a single notification.

一个通知的更多的信息

And yes, Pages can be combined with Stacks.

当然页也可以被绑定成堆叠

They allow you to add actions to notifications

它也可以为通知增加动作

that the user can control with their voice,

让用户可以通过开放式文本输入

via open-ended text input or through pre-defined text responses.

或者预先定义好的相应来控制

If you want to have code running on the wearable,

如果你想让你的代码运行在可穿戴设备上

you're going to have to build an app.

你需要创建一个应用

The SDK for apps isn't available yet.

SDK 现在还未发布

But here's a few notes to get you started thinking about them.

但是你可以先思考这些要点

You can create custom card layouts and run activities

你可以建立定制的布局并且

directly on wearables.

直接运行在可穿戴设备上

You can send data and actions between the phone

你可以通过数据复制 API 和远程过程调用

and a wearable with data replication APIs and remote procedure calls.

来在手机和可穿戴设备间传递数据

You can gather sensor data and display it in a real-time

你可以在可穿戴设备上收集并

on Android wearables.

实时显示传感器数据

And you can register your app to handle

注意你可以注册你的应用

Voice Actions, like OK Google, take a note.

来处理语音指令比如“OK Google”来做笔记

And that's the Android Wear platform.

这就是Android Wear平台

Please check out more detail on our excellent documentation,

请在我们优秀的文档 developer.android.com/wear. 中

developer.android.com/wear.

查找更多细节

I'm Timothy Jordan, and I'll see you next time.

我是Timothy Jordan 下次再见

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