Мобил қурилмалар учун операцион тизимлар

Android да оддий калкулятор

Андроид операцион тизимининг бошқа операцион тизимлардан фарқи (Android vs. iOS)

Хусусияти	Android	iOS
Company/Developer	Google	Apple Inc.
OS family	Linux	OS X, UNIX
Initial release	September 23, 2008	July 29, 2007
Programmed in	C, C++, java	C, C++, Objective-C
Source model	Open source	Closed, with open source components.
Internet browsing	Google Chrome (or Android Browser on older versions; other browsers are available)	Mobile Safari (Other browsers are available)
Interface	Touch screen, Smartwatch	Touch screen
Messaging	Google Hangouts	iMessage
Maps	Google Maps	Apple Maps
App store	Google Play – 1,000,000+ Apps.	Apple app store – 1,000,000+ Apps
Market share	81% of smartphones	12.9% of smartphones
Available language(s)	32 Languages	34 Languages

Ҳозирги кунда Android қурилмаларнинг жаҳон бозоридаги турлари

• ➤ Smartphones
• ➤ Tablets
• ➤ E-reader devices
• ➤ Netbooks
• ➤ MP4 players
• ➤ Smart TVs

Android да тезкор emulator. Genymotion virtual машинасидан фойдаланиш.

• Android да кўпчилик фойдаланувчиларимиз компиляцияни AVD (Android Virtual Device) emulator орқали амалга оширади ва бунда натижа чиқишини бироз кутиш керак бўлади.
• Ушбу камчиликни сезиларли даражада бартараф этиш учун Genymotion virtual машинасидан фойдаланишимиз мумкин. Бунда Android операцион тизими фойдаланувчи шахсий компьютерида намоён бўлади.
• Genymotion virtual машинасини ўрнатиш қуйидаги link да тўлиқ кўрсатилган:
• http://opennet.uz/timnet4u/androidda-tezkor-emulator-genymotion-virtual-mashinasidan-foydalanish.html

Мобил қурилмалар учун дастурий воситаларнинг асосий компоненталари

• Android ilovalar yaratish uchun quyidagi komponentalardan foydalaniladi:
• Activities - asosiy java fayllar, “activities”
• Services - ilovaga mos “ilova orti” xizmatlardan foydalanishni ta’minlaydi)
• Broadcast Receivers – Android operatsion tizimi va ilova o’rtasidagi aloqani ta’minlaydi
• Content Providers – ilovalar uchun ma’lumotlar va ma’lumotlar bazasidan foydalanishni ta’minlaydi
• Resources ilovaga tegishli barcha resurslar, layoutlar, satr ma’lumotlar va boshqalarni o’z ichiga oladi

Android SDK ни ўрнатиш

• Агар жорий компьютерда Java (JDK) ўрнатилмаган бўлса, у ҳолда Android SDK Manager ишга туширилганда қуйидагича хатолик чиқади.

Android SDK ни ўрнатиш

Android SDK Manager ни созлаш

Android SDK Manager ни созлаш

• Each version of the Android OS is identified by an API level number. For example, Android 2.3.3 is level 10 (API 10), while Android 3.0 is level 11 (API 11), and so on. For each level, two platforms are available. For example, level 14 offers the following:
• SDK Platform
• Google APIs by Google Inc.
• The key difference between the two is that the Google APIs platform contains additional APIs provided by Google (such as the Google Maps library). Therefore, if the application you are writing requires Google Maps, you need to create an AVD using the Google APIs platform.