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[MUSIC]

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Hi, I'm Ken.

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I've an exciting project for
us to work on for this course.

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One of my most used
apps is my weather app.

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Now, I've tried several different ones,
on a number of different devices.

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And while I've liked some,
none have been exactly what I've wanted.

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Or maybe they've worked well,
but they don't look so good.

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This is a great opportunity
to build our own.

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As luck would have it,
getting weather data from the Internet,

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and displaying it in an application
is a great learning experience.

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These days most apps have some online
component, which requires us to get

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familiar with sending and receiving
data over device's network connection.

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I'm going to assume that you're
comfortable with the concepts covered in

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our previous Android courses.

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If you haven't taken our other courses,
check the prerequisites

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list in Teacher's Notes, and complete
those courses prior to starting this one.

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Let's get started.

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Our user interface will
be relatively simple.

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Once again, we have some great design
mock-ups to work from, thanks for

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our amazing designers here at Treehouse.

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We'll call this app Stormy,

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and it will simply display current weather
conditions for a hard coded location.

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Stormy will load fresh data
each time we run the app, and

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we'll also add a refresh button.

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We'll use the Dark Sky service for
our stormy app.

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This service provides weather data for
developers, is fairly easy to use, and

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powers some popular weather applications.

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If we scroll down here and click on
the Dark Sky API link down in the footer,

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and scroll down here on
their page a little bit,

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We can find a list of some of
the organizations that rely on their data.

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This service is pretty reliable, and

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as we see at the top of this page,
It's free to get started.

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Thanks, Dark Sky.

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A typical weather app will
detect your location and

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provide location-specific
weather automatically.

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However, the focus of this course
is to learn about networking.

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As such, Stormy will not
automatically detect our location.

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We'll just use a specific location and
hard code it into the application.

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Hard coding simply means we'll
type the location coordinates

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directly into the app.

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Adding location detection functionality
to the app would be an easy feature

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enhancement to do later on.

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And I encourage you to try
it once the app is finished.

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Before we dive into Stormy, I'm going
to ask you to warm your brain and

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fingers with a quick code challenge.

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Once you're finished, meet me in
the next video and we'll get started.