iOS Development with Xamarin Cookbook

iOS Development with Xamarin Cookbook

By : Dimitrios Tavlikos (USD)

Buy this Book

iOS Development with Xamarin Cookbook

By: Dimitrios Tavlikos (USD)

Buy this Book

Overview of this book

iOS Development with Xamarin Cookbook

Credits

About the Author

About the Reviewers

www.PacktPub.com

Preface

Free Chapter

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

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

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

Introduction

Creating files

Using a SQLite database

Preparing for iCloud support

iCloud key/value storage

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

Introduction

Consuming web services

Consuming REST services

Communicating with native APIs

Using WCF services

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

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

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

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

Drawing lines and curves

Drawing shapes

Drawing text

A simple drawing app

Creating an image context

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

Introduction

Creating an app for different languages

Localizable resources

Regional formatting

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

Introduction

Reproducing the page curl effect

Integrating content sharing

Implementing custom transitions

Using physics in UI elements

Implementing the text-to-speech feature

Index

Customer Reviews

5 star

4 star

3 star

2 star

1 star

Drawing lines and curves

In this recipe, we will implement custom drawing to draw two lines on a UIView class.

Getting ready

Create a new Single View Application in Xamarin Studio and name it DrawLineApp.

How to do it...

Perform the following steps:

Add a new class to the project and name it DrawingView. Derive it from UIView as follows:
```
public class DrawingView : UIView
```

Add the following using directives in the DrawingView.cs file:

using MonoTouch.CoreGraphics;
using MonoTouch.UIKit;
using System.Drawing;

Add the following constructor to the class:

public DrawingView(RectangleF frame) : base(frame) {}

Override the Draw method of UIView and implement it with the following code:

public override void Draw (RectangleF rect)
{
  base.Draw (rect);
  Console.WriteLine("DrawingView draw!");
  CGContext context = UIGraphics.GetCurrentContext();
  context.SetLineWidth(5f);
  context.SetStrokeColorWithColor(UIColor.Green.CGColor);
  context.AddLines(new PointF[] { 
    new PointF(0f, this.Bounds.Height),
   ...

iOS Development with Xamarin Cookbook

By : Dimitrios Tavlikos (USD)

iOS Development with Xamarin Cookbook

By: Dimitrios Tavlikos (USD)

Overview of this book

Related Content you might be interested in

Current Title:

iOS Development with Xamarin Cookbook

Drawing lines and curves

Getting ready

How to do it...