Basic Trends of Modern Software Development

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DITF LDI

Lietišķo datorsistēmu programmatūras

profesora grupa

e-Business Solutions

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Vladimir Kotov Basic Trends of Modern Software Development

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Vladimir Kotov Basic Trends of Modern Software Development 3

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Version Statistics

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Version Statistics

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Smartphone OS Market Share

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Native Apps

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Native Apps

+

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Speed and reaction

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Native look'n'feel

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Native API

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Debug + Profile

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Only 1 platform

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New language?

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Costs

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When to use native app ?

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Use native app if ...

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You want to achieve native look and feel

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You need top performance

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The Mobile “Server-side” Web

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The Mobile “Server-side” Web

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Responsive Design

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Dynamically loads HTML content and assets

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Serves same HTML content and assets for every

device and then scales via CSS using media queries

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The Mobile “Server-side” Web

+

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Existing tools

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No license fees

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All platforms with

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The Mobile “Client-side” Web

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The Mobile “Client-side” Web

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Sencha Touch

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JQueryMobile

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JQTouch

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KendoUI

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The Mobile “Client-side” Web

+

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Existing tools

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No license fees

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All platforms with

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The Mobile “Client-side” Web

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Use the client-side web if ...

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Need something that looks like an app, but

care less for the sensors of your phone

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You want to prototype a service

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Hybrid App

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Hybrid App

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Run inside a native

container to leverage the

device’s browser engine

(but not the browser)

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Web-to-native

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Hybrid App

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Existing tools

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No license fees

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All platforms with

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Hybrid App

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Use hybrid approach if ...

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Interpreted and cross-compile

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Appcelerator Titanium

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JavaScript -> Native + Hybrid JS

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MonoTouch

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C# -> Native

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Apache Thrift

–

Thrift definition -> Native

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Interpreted and cross-compile

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Use interpreted or cross-compiled app if ...

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You want to use “one language to build them

all”

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Need access to the phone's hardware

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Need semi- or truly native look and feel /

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Decision

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Factors

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Android platform

Android is a Linux-based operating system and a

software stack designed for mobile devices

Key Applications

Home, Phone, Browser

Application Framework

Java layer system services

Middlewares

Libraries, Dalvik VM

Operating system

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Android platform

Developed by Google*

2005 – purchased Android Inc

2007 – established Open Handset Alliance (OHA)

2012 – Oracle v. Google on Java API

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Android platform

Main hardware platform for Android is ARM

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support for x86 from the Android x86 project

Advanced RISC Machine

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7.9 billion shipped in 2011

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95% smartphones

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90% hard disk drives

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Reduced instruction set computing (RISC)

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Lower costs, Less heat, Less power usage

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Reduced complexity and simpler design

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Android Linux Kernel

Android kernel based on Linux 2.6 and 3.x (Android 4.0)

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Why Linux?

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Great memory and process management

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Permissions-based security model

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Proven driver model

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Support for shared libraries

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Android Linux Kernel

Android “is not Linux”

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Users never see Linux sub system

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Not the full set of standard Linux utilities

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August 2011, Linus Torvalds - "eventually Android and

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Android Linux Kernel

Android patch of kernel enhancements

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Power Management

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Ashmem

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Binder IPC

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Low Memory Killer

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Android offer

**The first open* and comprehensive platform for mobile**

devices

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an operating system, user-interface and applications

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a mobile phone without the proprietary obstacles that

have hindered mobile innovation

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Android offer

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Apps are equivalent parts of the phone

using the same API

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Reuse and replacement of application

components

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GSM, EDGE, 3G, 4G, LTE data transfer

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Comprehensive location-based APIs

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Wi-Fi hardware access and peer-to-peer

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Android offer

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Full multimedia hardware control, media

libraries

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APIs for sensor hardware

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Libraries for Bluetooth and NFC

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Shared data stores and APIs for contacts,

social networking

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