developing pebble smartwatch apps
TRANSCRIPT
Data on your wristDEVELOPING PEBBLE SMARTWATCH APPS
Michael EarlsAdvanced Systems Design
http://cerkit.com
Getting started
with ASP.NET
WebAPI
DEVELOPMENT
ENVIRONMENT, HOSTING,
AND DEMO APP
What is WebAPI?
ASP.NET Web API is a framework that makes it easy to
build HTTP services that reach a broad range of clients,
including browsers and mobile devices.
ASP.NET Web API is an ideal platform for building RESTful
applications on the .NET Framework.
REST – REpresentational State Transfer – HTTP GET, POST,
PUT, DELETE
WebAPI – IDE and Hosting
Visual Studio 2013-2015
Community Edition (Free)
Professional Edition (Paid)
Visual Studio Code
Mac, Linux, and Windows
Hosting
Any host that supports ASP.NET 4.5.x
Windows Azure is easy to set up
Creating a WebAPI Project
Standard Web Project
Add WebAPI
Add MVC if you wish to build a web
front-end to your API
WebAPI Project Creation
DEMO
Getting started
with Pebble app
development
DEVELOPMENT
ENVIRONMENT, LANGUAGE
SUPPORT, AND SAMPLE
CODE
Development Environment – Pebble not required
Pebble C SDK
Apple OSX – Xcode or other IDE
Linux – editor/IDE of choice
No Windows Support
Cryptic compiler error/warning messages
Standalone Emulator
Allows you to link outside libraries
App configuration in .json file
CloudPebble(http://cloudpebble.net)
Online IDE
Chrome browser on any platform
C, Pebble.js languages
Good, easy to understand compiler errors/warnings
Browser-based emulator
No outside libraries supported
Easy app configuration
Language Support
JavaScript (Pebble.js)
Runs on phone
Requires active Bluetooth connection to Pebble App on phone
Supports:
WebSockets
XMLHttpRequest
Geolocation
LocalStorage
C
Runs on watch
Does not require connection to phone unless JavaScript is also used
CloudPebble Demo
Developing an app in CloudPebble
App Settings Page
HTML/JavaScript Page
Hosted on the Internet
Opens in WebViewer from within Pebble
smartphone app
Settings Page
Bootstrap
JavaScript to determine test or production
modes
Code to set configuration settings on the
watch
Settings Page
Demonstration
JavaScript integration with C
Phone functionality (GPS, Internet, Weather, etc.) requires JavaScript
Must pass values between C code and JavaScript code using a dictionary
Steps to pass data:
Setup callbacks in C code
app_message_open() – C code that starts the process of requesting a message
Pebble.sendAppMessage() – Pebble.js code that actually sends the message
Uses a JavaScript object representing a simple dictionary containing the values you wish to send
inbox_received_callback() – C code that processes call as a dictionary of
Tuples containing the data that was passed in
How do I make money with Pebble?
Pebble apps are all free on the
Pebble app store
Companion apps on Google Play or
Apple app store
Links
CloudPebble – http://www.cloudpebble.net
Discogs REST API – http://www.discogs.com/developers/
Settings Page Gist - https://gist.github.com/cerkit/c5e42de6016067d1d585
Getting started with WebAPI - http://goo.gl/FGk6gW
My personal blog – http://cerkit.com
@cerkit on Twitter