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iOS Development with Xamarin Cookbook

By : Dimitrios Tavlikos (USD)

4 (13)

iOS Development with Xamarin Cookbook

4 (13)

By: Dimitrios Tavlikos (USD)

Overview of this book

iOS Development with Xamarin Cookbook

iOS Development with Xamarin Cookbook

Credits

Credits

About the Author

About the Author

About the Reviewers

About the Reviewers

www.PacktPub.com

www.PacktPub.com

Preface

Preface

Free Chapter

Development Tools

Development Tools

Introduction

Installing prerequisites

Creating an iOS project with Xamarin Studio

Interface Builder

Creating the UI

Accessing the UI with Outlets

Adding Actions to controls

Compiling an iOS project

Debugging our application

User Interface – Views

User Interface – Views

Introduction

Adding and customizing views

Receiving user input with buttons

Displaying images

Displaying and editing text

Using the keyboard

Displaying progress

Displaying content larger than the screen

Navigating through the content divided into pages

Displaying alerts

Creating a custom view

Styling views

User Interface – View Controllers

User Interface – View Controllers

Introduction

Loading a view with a view controller

Navigating through different view controllers

Providing controllers in tabs

Modal view controllers

Creating a custom view controller

Using view controllers efficiently

iPad view controllers

UI flow design with storyboards

Unwinding in storyboards

Data Management

Data Management

Introduction

Creating files

Using a SQLite database

Preparing for iCloud support

iCloud key/value storage

Displaying Data

Displaying Data

Introduction

Providing lists

Displaying data in a table

Customizing rows

Editing a table

Table indexing

Searching through the data

Creating a simple web browser

Displaying data in a grid

Customizing the grid

Web Services

Web Services

Introduction

Consuming web services

Consuming REST services

Communicating with native APIs

Using WCF services

Multimedia Resources

Multimedia Resources

Introduction

Selecting images and videos

Capturing media with the camera

Playing videos

Playing music and sounds

Recording with the microphone

Managing album items directly

Integrating iOS Features

Integrating iOS Features

Introduction

Starting phone calls

Sending text messages and e-mails

Using text messaging in our application

Using e-mail messaging in our application

Managing the address book

Displaying contacts

Managing the calendar

Interacting with Device Hardware

Interacting with Device Hardware

Introduction

Detecting the device orientation

Adjusting the UI orientation

Proximity sensor

Retrieving the battery information

Handling motion events

Handling touch events

Recognizing gestures

Custom gestures

Using the accelerometer

Using the gyroscope

Location Services and Maps

Location Services and Maps

Introduction

Determining location

Determining heading

Using region monitoring

Using a significant-change location service

Location services in the background

Displaying maps

Geocoding

Adding map annotations

Adding map overlays

Graphics and Animation

Graphics and Animation

Introduction

Animating views

Transforming views

Animating images

Animating layers

Drawing lines and curves

Drawing shapes

Drawing text

A simple drawing app

Creating an image context

Multitasking

Multitasking

Introduction

Detecting application states

Receiving notifications for app states

Running code in the background

Playing audio in the background

Updating data in the background

Localization

Localization

Introduction

Creating an app for different languages

Localizable resources

Regional formatting

Deploying

Deploying

Introduction

Creating profiles

Creating an ad hoc distribution bundle

Preparing an app for the App Store

Submitting an app to the App Store

Advanced Features

Advanced Features

Introduction

Reproducing the page curl effect

Integrating content sharing

Implementing custom transitions

Using physics in UI elements

Implementing the text-to-speech feature

Index

Index

Implementing the text-to-speech feature

In this recipe, we will learn to work with AVSpeechSynthesizer, the class that provides the Text-To-Speech (TTS) functionality for many different languages.

Getting ready

Create a new Single View Application in Xamarin Studio and name it SpeechApp. Add a UITextField and a button to the controller.

How to do it…

Perform the following steps:

Add the MonoTouch.AVFoundation namespace in the SpeechAppViewController.cs file, using the following code:
```
using MonoTouch.AVFoundation;
```

Add the following code in the ViewDidLoad method:

this.txtEntry.ShouldReturn = (textField) => textField.ResignFirstResponder();
this.btnSpeak.TouchUpInside += (sender, e) => {
  AVSpeechSynthesizer synth = new AVSpeechSynthesizer();
  AVSpeechUtterance utterance = new AVSpeechUtterance(this.txtEntry.Text);
  utterance.Rate = 0.3f;
  utterance.Voice = AVSpeechSynthesisVoice.FromLanguage("en-US");
  synth.SpeakUtterance(utterance);
};

Compile and run the app on the simulator. Type some...

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