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iOS: Xcode4: Text Editor and Utilities Area with Amit Bijlani]

In this video, we will dive a little deeper into Xcode 4,

taking a look at the text editor and the utilities area.

Let's look at the editor.

Up here, you have a few icons, as you will see.

Right next to the standard editor--which if I click over here I will see the standard editor--

I have something called the Assistant, so if I click on that,

it actually gives me a side-by-side layout of a file that is related to the file that I'm editing.

So I'm looking at the ZoneClockAppDelegate

and right next to it over here is the implementation of ZoneClockAppDelegate.

As you might remember from Xcode 3, there was a whole jumping around

for different files, so here you don't have to jump around.

You have the interface and the implementation in one place, which is a huge help.

If you do not just want to look at the header file or the implementation file,

you can also change the kind of files the assistant displays to you

by clicking on counterparts.

So you can look at Counterparts over here, you can view the Subclasses, Superclasses,

Siblings, Protocols--all kinds of different things.

You can even specify it to be manual so you can manually set a file that you want to look at.

This is really, really a great and nifty feature.

Next to the assistant, I have something called in the Versions View.

The Versions View basically gives me the different versions that are stored;

the local version compared to the version that's stored on the server.

So as you notice, when we created the project,

we created a local git repository

so it will now maintain different versions as I commit to the git repository.

We will take a look at this in depth a little later,

but basically, to give you an overview, if you click on this little history icon,

it will actually show you the different versions based on all the commits that you've made.

So let's go back to the standard editor.

Then we have a few icons over here that are related to the view.

This one that displays the bottom is basically the debugger.

Here you will have your console output and while you're debugging, you will have

your debugging information over here.

And finally you have the right-most icon under the View group,

which is the utilities area.

The great thing about the utilities area is that you have a new option over here

that shows you quick help.

So if I click on any classes inside my code, you will see there's a quick help over here

which displays a brief description and references and links to the help file.

Below in the utilities area is your code snippets library.

You have other libraries, like the file template and the objects,

but we'll look at those when we take a look at the new interface builder.

So let's say you've forgotten how to write a for statement or an if statement,

or you're not just sure how certain things are written.

You can use the code snippets library where it actually populates

a template of the library for you.

So for example, I want to see what the For template looks like,

so I'm going to say For statement, and there you go.

It says--by the way, I was typing right down here; there's a little search box

and I wrote For statement and it brought this code snippet library up here.

I'm just going to drag this for statement into my code over here,

and as you can see, it populates it with a convenient template

that I can use as a starting point for my coding.

So it's very, very helpful, and in a later video, we will see

how we can use the code snippets library to put custom snippets over there.

And lastly, you might want to take a look at what's up top over here.

You have your little activity viewer where it shows you what's going on with your project,

when you last built, and if there are any issues.

You can take a look at the Run button, and if I just hold it down,

you will see that there are different options I have over here: Run, Test, Profile, Analyze.

And then there is the Stop button, which will stop your application from running in the simulator.

And finally, you have the Schemes.

The Schemes comes in very handy when you want to deploy the app

to different versions of iOS or different devices--you want to test them on different devices,

but we'll take an in-depth look at this in a future video

when we deploy code to a device.

Finally, I want to leave you with a few shortcuts,

convenient and helpful for you when you're going to be using Xcode 4.

So the first shortcut is Command + 0.

If I hit that, you will see that it shows and hides the navigation area.

The second shortcut is Command + Option + 0, which shows and hides

the utilities area to the right.

If you want to display the Assistant area, then you can hit Command + Option + Enter

and it will show you the assistant editor.

And if you just want to go back to the standard editor, you can just hit Command + Enter.

So there you have it--a few shortcuts to help you get started using Xcode 4.

So as you've seen, although Xcode 4 is not free,

it's worth paying the price for.

Not only will it be the standard going forward, but it will make your development a lot easier.

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