[MUSIC]
Hi everyone.
Okay so let's see where we are so far in Course Two.
So we started by looking at a very simple iPhone app
where you could have an image that's already pre-loaded and
adjust the contrast in the way that we'd seen in Course One.
We've now seen different UI elements, and so in fact you could link UI elements and
control their contrast amount to a slider, or
actually you could enter the contrast amount in a text view and or
in a text UI element, and adjust what the contrast is.
So this is now the beginnings of a photo editing application,
because you have a photo.
You could actually edit different parts of it and you get a different photo out.
There are two things missing that we're going to look at in today's module.
One is well, where do you get a photo in the first place?
So far this photo has been saved on the on the device where it's been part of
the package, part of the elements that have been pre-compiled in the application.
But what you actually want to do is be able to capture a photo with a camera or
upload a photo from your album.
So today we'll see how do you start by taking a photo, and
inputting that photo into the application which is actually fairly easy to do.
iOS makes that quite easy.
And one of the things that we'll see at the end is,
how do you actually share the result?
And in particular, we'll see how do you mail a photo to anyone.
So you have a mail output that takes the photo, can embed it in the email, and
sends it out.
So most of these elements we'll see.
The goal is that once you have these elements,
you now can take a photo, you can edit it as we've seen before,
connect it with different UI elements, and then email the photo as a result.
These are all parts of a whole image editing application.
Today, many of these elements, kind of like Lego pieces, start fitting together.
In a way that makes sense hopefully more than is hasn't in the past.
Let's get started.
