Writing Speaking Text Editor Part 3

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來自 University of California, Irvine 的課程

Toward the Future of iOS Development with Swift

74 個評分

University of California, Irvine

Toward the Future of iOS Development with Swift

74 個評分

課程 5（共 6 門，Specialization iOS Development for Creative Entrepreneurs）

An introduction to the Swift programming language. This will prepare you for more extensive iOS app development and build a foundation for advanced iOS development topics. Upon completing this course, you will be able to: 1. Associate the relationship of Swift and Objective-C and their use in iOS and Mac (OS X) programming 2. Develop the ability to read and write Swift code 3. Distinguish how both programming languages can be used together in applications 4. Demonstrate how to write applications entirely in Swift with the help from several iOS programming samples 5. Determine how Swift can be used for development on new platforms such as Apple Watch and Apple TV 6. Create a working client-server iPhone application with location services that you can add to your portfolio.

從本節課中

From Programmer to Developer

This week, you will take steps into really developing their first, simple iPhone project with Swift. This will introduce some topics not limited to Swift itself, but also really start looking into bigger topics for iOS application development to prepare you to write a more complex application in Week 4.

Cocoa Application Speaking Text Editor Sample11:05

Writing Speaking Text Editor Part 110:36

Writing Speaking Text Editor Part 211:02

Writing Speaking Text Editor Part 35:49

Event Driven Applications with Swift and XCode Part 110:20

Event Driven Applications with Swift and XCode Part 26:43

Event Driven Applications with Swift and XCode Part 35:43

與講師見面

Justin-Nicholas Toyama
UCI Extension Instructor
Lead iOS Developer at Smilefish Corporation
Frank Ayars
UCI Extension Instructor
CTO and Director of Software Development at Smilefish Corporation
Ralf Brockhaus
UCI Extension Instructor
Founder and CEO at Smilefish Corporation

[MUSIC]

So now we have the user interface connected.

Let me just double check here the view controller very fast.

So in my view controller I actually see now that my for

the text view is connected to this dot here shows me it's connected and

I have my two functions connected.

If I run this application now.

Actually what I might have to do for that is get out of view for a second.

So if I run this application now.

It's compiling, it's running, but it's successfully, application fires up.

So there's no text in here.

If I now say, so first a couple of things to verify.

If I now, make this window bigger, you see the Stop and

the Speak button on other constraints and they move the screen.

And also my text view is now actually following the size on my window.

If I say something here now like hello Ralph and I press the Speak button,

what will happen here is it will call the function speak,

and inside my speak function so far there's not much code there.

So what I do here is I basically speak button click to say whatever I said here.

So in my console it says Hello Ralph.

So it does not speak yet, it gives us an error up there.

So we can ignore that for a moment, so

the next thing which we want to do now is we want to make it actually speak.

So to make it actually speak, we will go and

go into the view controller at first I stop the execution of the the application.

The next thing which we want to do is we want to

activate speech synthesizer and we want to read the text.

What I do here is, let speech

synthesize be in n s speech synthesizer.

Yeah, and it gives me a warning that I'm not using it, that's fine.

And because we're making a new one obviously we have the brackets there.

So now we have a speech synthesizer and

all I need to do here is if I go into the speak button click.

First thing I want to make sure is I want to define some form of contents, right?

So let my contents be equal to something like text view.

Text view, yeah, string but was a where.

Got this

So basically it's an if.

Is empty.

Sorry, the kind of, contents is empty, sorry.

And then, [LAUGH] that was an easy error.

Right, so we look at the contents and so we take the string and, but only

if it's not empty, and if it's not empty, then we take this speech synthesizer.

And I can take our speech synthesizer and I say start SpeakingString, and

into the string actually we move the contents.

All right, so that is if it succeeded, and else,

where we do in the other case, we basically say speechSynthesizer,

start SpeakingString,

nothing to say to you.

I have nothing to say to you.

All right so that's what happens in that case and

than the equivalent here at the bottom is basically if I stop,

then I saw speechsynthesizer.stopspeaking.

So when I run this application now,

compile and run, it succeeds and

so let's see if and how it works.

>> Let's see if it all works.

>> All right, so I can speak.

>> Let's see.

>> And, I can stop the synthesizer whenever I want.

So, my user interface is complete.

My application can actually allow me to write the text.

And I can enter the text and I can use a synthesizer to speak it.

So I think this is a good moment to cut this module off, and

then I will do a second part where I will show you

how we integrate all this saving the files in the file system.

Thank you.

[MUSIC]

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