4. Sending and Syncing Data | Android Wearable Programming

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Table Of Contents

Android Wearable Programming

By : Steven F. Daniel

4 (2)

Android Wearable Programming

4 (2)

By: Steven F. Daniel

Overview of this book

If you are an Android developer who wants to learn how to build applications for the Android Wear platform, then this is the book for you. This book only requires a basic knowledge of Android programming. Familiarity with development IDEs such as Android Studio, IntelliJ IDEA, or Eclipse will be helpful.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

1. Understanding Android Wearables and Building Your First Android Wear App

1. Understanding Android Wearables and Building Your First Android Wear App

Introducing Android wearables

Understanding the Android Wear architecture

Setting up an Android development environment

Building a simple Android wearable application

Summary

2. Creating Notifications

2. Creating Notifications

Introducing Android notifications

Creating a basic notification for wearables

Creating a custom notification for wearables

Receiving voice input within a notification

Receiving multiple notifications through a process called page stacking

Summary

3. Creating, Debugging, and Packaging Wearable Apps

3. Creating, Debugging, and Packaging Wearable Apps

Creating an Android wearable watch face app

Presenting information inside the WatchFace class

Creating a custom watch face service class

Debug your Android wearable app over Bluetooth

Running apps directly on an Android Wear device

The Android wearable user interface guidelines

Packaging your Android wearable application

Summary

4. Sending and Syncing Data

4. Sending and Syncing Data

Creating a wearable send and receive application

Creating a UI for the mobile activity

Creating a UI for the wear activity

Establishing connections for the mobile activity

Sending messages to the Android wearable

Receiving messages using MessageAPI

Transferring image data to the Android wearable

Receiving image data using DataApi

Summary

5. Working with Google Glass

5. Working with Google Glass

Installing the Glass Development Kit preview

Installing the Google USB drivers for Windows

Creating and building a Google Glass application

Launching the app within Google Glass

An introduction to GDK and the Google Mirror API

The Google Glassware principle design guidelines

Summary

6. Designing and Customizing Interfaces for Android TV

6. Designing and Customizing Interfaces for Android TV

Creating and building an Android TV application

Customizing the Android TV user interface

The Android TV user interface design guidelines

Summary

Index

Index

Creating a UI for the wear activity

In this section, we need to build the user interface for the Android wearable activity section of our application. This will enable us to receive messages and images sent from the Android handheld device and have this information presented within the Android wearable watch area.

Perform the following steps:

From the Project Navigator window, open the rect_activity_wear.xml file that is located in the res | layout folder, and add the following code:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout   
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"   
    android:layout_width="match_parent"
    android:layout_height="match_parent"   
    android:orientation="vertical"
    tools:context=".WearActivity"   
    tools:deviceIds="wear_square">

    <TextView
        android:layout_width="92dp"
        android:layout_height="31dp"
        android:minEms="10"
        android:id...

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