Lecture 08 Xamarin

Mar 23, 20171 like202 views

Team Technologies LLC consists of mobile developers Oleg and Nazar. The document discusses developing cross-platform mobile applications using Xamarin. It outlines why native mobile development is important, what Xamarin is, and how to architect mobile apps in Xamarin including using Xamarin Forms. It provides an agenda and overview of the topics that will be covered.

Team Technologies LLC
Oleg
Mobile Developer
Nazar
Mobile Developer
Лекція №8 від провідних .NET розробників з

Agenda
• Why Native?
• What is Xamarin?
• Architecting Mobile Apps
• Xamarin Forms
• Demo

The Anatomy of a Native App
Xamarin apps look and feel native because they are native
Native User Interfaces Native API Access Native Performance

Cross-Platform Mobile Development
• Building high-quality Apps is hard:
• Different presentation styles, interaction styles and software stacks
• Devices have different screen sizes, input modes and hardware capabilities
• New devices and OS versions are introduced multiple times per year
• Network connectivity and power levels 
fluctuate widely in typical usage scenarios
• New consumer applications regularly 
extend and revise the standards and 
set the bar higher for good mobile 
applications

Xamarin.iOS does full Ahead Of Time
(AOT) compilation to produce an ARM
binary for Apple’s App Store.
Xamarin.Android takes
advantage of Just In Time
(JIT) compilation on the
Android device.

Xamarin brings open source .NET to mobile
development, enabling every developer to
build truly native apps for any device in C#
and F#.
What is Xamarin?

Make it fast, easy and fun
to create great mobile apps
Xamarin’s Mission

Build App Multiple Times
• Expensive to staff
multiple platform-
specific teams
• Expensive to maintain
multiple code bases
• Slows innovation

The Write-Once-Run-Anywhere Approach
• Non-standart UI
• Limited API access
• Non-native performance
• Poor user experience

Xamarin’s Unique Approach
Native With
Code Sharing

Xamarin Designer for iOS in Xamarin Studio

Anything you can do in Objective-C or Java  
can be done in C# with Xamarin using Visual Studio

Xamarin.Forms
Quickly and easily build native
user interfaces using shared code
Xamarin.Forms elements map to
native controls and behaviors
Mix-and-match Xamarin.Forms
with native APIs Shared App Logic
Shared UI Code

Pages
Content MasterDetail Navigation Tabbed Carousel

Layouts
Stack Absolute Relative Grid ContentView ScrollView Frame

Controls
ActivityIndicator BoxView Button DatePicker Editor
Entry Image Label ListView Map
OpenGLView Picker ProgressBar SearchBar Slider
Stepper TableView TimePicker WebView EntryCell
ImageCell SwitchCell TextCell ViewCell

NuGet Package Manager
NuGet support combined with the Xamarin Component Store gives Xamarin
developers the most comprehensive ecosystem of libraries at their fingertips

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The document discusses networking on mobile devices. It covers supported networking technologies like cellular data, WiFi, and Bluetooth. It discusses required permissions for network operations and the need to perform networking operations on a separate thread to avoid blocking the UI. It provides an example of using AsyncTask to perform networking operations asynchronously. It also covers best security practices, implementing a network security configuration, checking device connectivity, and using Firebase Cloud Messaging as an alternative to polling for updates from a server.

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This document provides an overview of user interface (UI) programming for mobile apps. It discusses UI programming patterns like state machines and model-view-controller (MVC). It explains how MVC is implemented in Android and iOS. It also describes core Android application components like activities, services, content providers and more. Finally, it covers topics like layouts, views, resources and more aspects of Android UI programming.

Java Small TestsMaksym Davydov

Android Programming IntroMaksym Davydov

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The document summarizes the key hardware components of mobile devices, including displays, CPUs, memory, storage, cameras, sensors, networking capabilities, and connectors. It discusses screen sizes and resolutions for Android and iOS devices and provides details on processors, memory, and GPUs used by Android and Apple phones. It also covers camera, network connectivity including 4G/5G, Bluetooth, NFC, and connectors such as Micro-USB, USB-C, and Lightning.

Lecture 01 Mobile operating systemsMaksym Davydov

Lecture 13 Local Optimization on Mobile DevicesMaksym Davydov

Lecture 12. iOS and Android AnimationsMaksym Davydov

Lecture 11. Microsoft mobile servicesMaksym Davydov

This document provides an overview of Microsoft Azure Mobile Services and its management portal. It discusses the key features and capabilities of Azure Mobile Services including data storage, user authentication, push notifications, and server-side scripts. It also summarizes the available server-side script objects and modules that can be used to access additional functionality from scripts. Finally, it outlines the REST API operations for querying, inserting, updating and deleting data in Mobile Services tables.

Lecture 11 Firebase overviewMaksym Davydov

This document provides an overview of the Firebase mobile platform and its features for developing mobile applications. It discusses Firebase services for authentication, realtime database, storage, hosting, remote config, cloud messaging, crash reporting, testing, dynamic links, invites, advertising and analytics. It includes code examples for authentication, database reads and writes, and storage uploads and downloads. The document promotes Firebase as providing a compact team that can build scalable mobile apps with fast iteration while allowing developers to sleep at night through its backend services.

Lecture 10 Networking on Mobile DevicesMaksym Davydov

The document discusses networking on mobile devices. It covers supported networking technologies like cellular data, WiFi and Bluetooth. It discusses required permissions for network operations and that networking should be performed on a separate thread to avoid blocking the UI. It provides an example of using AsyncTask to perform networking operations asynchronously. It also covers best security practices, checking network connectivity, and using Firebase Cloud Messaging as an alternative to polling for updates.

Lecture 09 Android StorageMaksym Davydov

Firebase overviewMaksym Davydov

Microsoft mobile servicesMaksym Davydov

Design of mobile appsMaksym Davydov

Mobile app design feature developmentMaksym Davydov

Android mix Java and C++Maksym Davydov

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Handler declaration in layoutMaksym Davydov

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Java Small TestsMaksym Davydov

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Lecture 08 Xamarin

1. Team Technologies LLC Oleg Mobile Developer Nazar Mobile Developer Лекція №8 від провідних .NET розробників з

2. Developing Cross-Platform Applications

3. Agenda • Why Native? • What is Xamarin? • Architecting Mobile Apps • Xamarin Forms • Demo

4. Why Native?

5. The Anatomy of a Native App Xamarin apps look and feel native because they are native Native User Interfaces Native API Access Native Performance

6. Cross-Platform Mobile Development • Building high-quality Apps is hard: • Different presentation styles, interaction styles and software stacks • Devices have different screen sizes, input modes and hardware capabilities • New devices and OS versions are introduced multiple times per year • Network connectivity and power levels  fluctuate widely in typical usage scenarios • New consumer applications regularly  extend and revise the standards and  set the bar higher for good mobile  applications

7. Xamarin.iOS does full Ahead Of Time (AOT) compilation to produce an ARM binary for Apple’s App Store. Xamarin.Android takes advantage of Just In Time (JIT) compilation on the Android device.

8. What is Xamarin?

9. Xamarin brings open source .NET to mobile development, enabling every developer to build truly native apps for any device in C# and F#. What is Xamarin?

10. What is Xamarin?

11. Make it fast, easy and fun to create great mobile apps Xamarin’s Mission

12. Xamarin Mobile Lifecycle

13. Architecting   Mobile Apps

14. Build App Multiple Times • Expensive to staff multiple platform- specific teams • Expensive to maintain multiple code bases • Slows innovation

15. The Write-Once-Run-Anywhere Approach • Non-standart UI • Limited API access • Non-native performance • Poor user experience

16. Xamarin’s Unique Approach Native With Code Sharing

17. Xamarin Designer for iOS in Xamarin Studio

18. Anything you can do in Objective-C or Java   can be done in C# with Xamarin using Visual Studio

19. Xamarin Forms

20. Portable Class Libraries

21. Xamarin Architecture Choices

22. Xamarin.Forms Quickly and easily build native user interfaces using shared code Xamarin.Forms elements map to native controls and behaviors Mix-and-match Xamarin.Forms with native APIs Shared App Logic Shared UI Code

23. Pages Content MasterDetail Navigation Tabbed Carousel

24. Layouts Stack Absolute Relative Grid ContentView ScrollView Frame

25. Controls ActivityIndicator BoxView Button DatePicker Editor Entry Image Label ListView Map OpenGLView Picker ProgressBar SearchBar Slider Stepper TableView TimePicker WebView EntryCell ImageCell SwitchCell TextCell ViewCell

26. NuGet Package Manager NuGet support combined with the Xamarin Component Store gives Xamarin developers the most comprehensive ecosystem of libraries at their fingertips

27. Why Xamarin?

28. Better Mobile Productivity

38. Event Tracking

39. Issue Tracking

40. Issue Tracking

41. Issue Tracking - Detail

42. Issue Tracking – Device & User Data

43. Demo

44. Q & A