Skip to main content

Home/ Coders/ Group items tagged class

Rss Feed Group items tagged

Filter: All | Bookmarks | Topics Simple Middle
David Corking

Dr. Dobb's | Smartphone Operating Systems: A Developer's Perspective | March 30, 2009 - 0 views

www.ddj.com/...printableArticle.jhtml

Cellular phones PDA symbian iphone

shared by David Corking on 11 May 09 - Cached
  • The industry stewards have countered Apple's move with their own application stores, so there's a huge opportunity to write the "killer app" for one of several smartphone platforms.
  • 40 MB to less than 4 MB of free RAM
  • one-app-at-a-time requirement complicates any implementation of a copy-and-paste mechanism.
  • ...45 more annotations...
  • As a security sandbox, the iPhone OS permits only one third-party application to run at a time, and not in the background.
  • adding some useful Bluetooth profiles that supported stereo headsets, data synchronization, or the ability to implement multiplayer games would be usefu
  • iPhone OS 3, that provides some of the missing features mentioned here, such as the A2DP profile for Bluetooth, voice recording, and copy-and-paste.
  • Have to learn Objective-C; is only smartphone platform that uses it.
  • Competitors will soon catch up on the UI.
  • embed navigation and GPS plotting into applications.
  • provide their own map content
  • The OS now supports the use of accessories connected to the iPhone either through its 30-pin docking connector or wirelessly via Bluetooth. Now that the device has been "opened", you can expect an entire ecosystem to build up around the device, much like the iPod has.
  • peer-to-peer connectivity using Bonjour
  • developers can now allow users, from within the application, to purchase and obtain new content
  • No voice dial.
  • A client-server mechanism provides access to low-level system resources, and in fact the kernel itself is a server that parcels out resources to those applications that need them. This transaction scheme allows applications to exchange data without requiring direct access to the OS space.
  • C/C++ for porting existing UNIX applications, and Java to port Java ME MIDlets. As mentioned previously, the software stack offers several run-times that offer application development using WRT widgets, Flash, and Python. The primary programming language for the platform is Symbian C++,
  • Handango has managed the wide-scale distribution of Nokia applications. In February, Nokia announced plans to launch its Ovi Store, which sells applications, videos, games, pod-casts and other content, similar to Apple's App Store. The store will be accessible by Nokia S60 smartphones in May.
  • Non-standard Symbian C++ has steep learning curve, with special idioms to master. Large number of Symbian APIs to learn, since it contains hundreds of classes and thousands of member functions.
  • BlackBerry Device Software executes multiple applications simultaneously
  • Manages multiple e-mail Exchange e-mail accounts, along with support for POP3 and SMTP, and e-mails can have file attachments
  • FIPS 140-2 compliant, and supports AES or Triple DES encryption sessions via BlackBerry Enterprise Servers
  • BlackBerry Device Software has enhanced the capabilities of the platform with its own Java virtual machine (JVM), along with new Java classes that offer multitasking capabilities and UI enhancements to go beyond the capabilities of Java ME.
  • You can also take existing Java ME code and add specific BlackBerry classes to make a hybrid Java ME application
  • don't intermix MIDP 2.0 and BlackBerry API calls that perform either screen drawing or application management.
  • The catch to writing an application that uses BlackBerry API extensions is that it ties the application this smartphone. However, this is no worse than using the unique Java classes found in Google's Android.
  • Apple promotes the design goal that applications should accomplish one purpose.
  • no Flash support, and you can't download files.
  • For non-Exchange users, Apple's MobileMe online service, after some fits and starts in 2008, now supports the push of e-mails and changes to the calendar and contacts.
  • The iPhone 3G can work in tandem with Microsoft Exhange Server 2003 and 2007 to support enterprise operations.
  • Cocoa Touch is a subset of Apple's Cocoa,
  • Cocoa Touch components manage most of the writing to the screen and playing media, yet there are APIs exposed that let you access the accelerometer and camera.
  • Quartz engine is identical to the one found in Mac OS X
  • Only a select few higher-level frameworks have access to the kernel and drivers. If necessary, an application can indirectly access some of these services through C-based interfaces provided in a LibSystem library.
  • the SDK provides Dashcode, which is a framework based on a Web page composed of HTML and Javascript. You can use DashCode's simulator to write and test your web application. You can also use several other third-party frameworks to write web applications, and debug these with Aptanna Studio's tools.
  • Made by HTC, the G1 is the first smartphone using the Android platform.
  • e-mail program (which makes use of Google's Gmail), a mapping program (using the company's Google Maps), and a browser that uses WebKit, not Google's Chrome web browser
  • Android is not Java ME, nor does it support such applications
  • ability to both browse and manage multiple IM conversations. On the other hand, such heavy use of the smartphone's CPU shortens battery life significantly. Maybe Apple is on to something in limiting the number of applications that the platform can run.
  • On the positive side, the Android APIs support a touch interface (and the G1 has a capacitive touch screen), but not any multi-touch gestures.
  • copying text from the web pages is the browser isn't allowed
  • The advantage to Android's use of a different bytecode interpreter is that the DVM was designed so that multiple instances of it can run, each in their own protected memory space, and each executing an application. While this approach offers stability and a robust environment for running multiple applications, it does so at the expense of compatibility with Java ME applications.
  • Seasoned Java programmers will find the Android SDK an amalgam of Java SE and Java ME methods and classes, along with unique new ones
  • compile the Java code to generate Dalvik bytecode files, with an extension of .dex. These files, along with the manifest, graphics files, and XML files, are packaged into an .apk file that is similar to a Java JAR file.
  • The certificate that you use to generate the private key does not require a signing authority, and you can use self-signed certificates for this purpose.
  • The Developer Phone provides access to a shipping Android device without the cash outlay or contract contortions required when developing for the other platforms.
  • in February the site began supporting priced applications. Google allows developers to take seventy percent of the proceeds.
  • it's possible that you might pick up a malicious application before it is detected by the user community.
  • Open source, open platform: if you hate the mail program, some third-party is writing a better one.
  • David Corking on 11 May 09
     
    Lengthy developer's overview of Symbian, Mac OS X iPhone, Blackberry, Android. This talks about the leading app platforms except Java ME and Windows Mobile, though it does explain how Blackberry and Symbian support Java ME.
subsequent1 subsequent1

Survetement lacoste Pas plus - 0 views

Dans les quartiers populaires de la ville, comme Abou Samra, Qobbé ou Tebbané, on croise fréquemment des militants islamistes aux barbes fournies et aux chemises traditionnelles. Des petits partis ...

Polo pas cher survetement Lacoste Homme

started by subsequent1 subsequent1 on 04 Jun 14 no follow-up yet
amsherali

Top Class New Year Greeting 2015 - Special Wishing Pictures - 0 views

2015happynewyearphotos.blogspot.co.uk/...ss-new-year-greeting-2015.html

class greeting special pictures image of happy new year 2015 cards wallpaeper hd 3d

shared by amsherali on 17 Dec 14 - No Cached
  • amsherali on 17 Dec 14
     
    Top Class New Year Greeting 2015 – Special Wishing Pictures Email This, BlogThis!, Share to Twitter, Share to Facebook, Share to Pinterest, Beautiful Happy New Year 2015 Best Wishing Cards, Happy New Year 2015 Best Cards are being shared...
longchamppas

sac longchamp pliage pas cher Lors - 0 views

Les effets du changement climatique au Niger, documentés par des étudiants. (Capture d'écran) Même constat au Tchad : ? L'assèchement du lac Tchad est une réalité liée au changement climatique ?, ...

sac longchamp pas cher pliage solde

started by longchamppas on 03 Dec 15 no follow-up yet
roberthayes222

Hosting Server Side Code in Cloud - Platform as a Service (PaaS) - 0 views

api.shephertz.com/...custom_code.php

paas cloudapp42 api

shared by roberthayes222 on 28 Jan 13 - No Cached
  • Custom Code Your Code , Our Cloud No infrastructure worries Create and deploy your REST service in few commands Write it using your very own powerful JAVA platform No security hassles….Runs inside scalable and secure App42 platform Manage your service using Command Line/API or interactive AppHQ UI Coming Soon !!! Support of other language including Java Script, Ruby and PHP
roberthayes222

File storage API - 0 views

api.shephertz.com/...file_storage.php

storage api cloudapp42

shared by roberthayes222 on 28 Jan 13 - Cached
  • File Storage Upload file in App42 Cloud with Single API call Data ubiquity with auto App42 CDN Service. File Upload Supports all formats, including Audio/Video/Text or other format Serve uploaded file to your app users using CDN network No infrastructure and server setup required AppHQ GUI consoles to manage all your uploaded files.
roberthayes222

User Management Api, Manage App Users, Create User for the App - 0 views

api.shephertz.com/user.php

user management api app42 cloud

shared by roberthayes222 on 22 Jan 13 - No Cached
  • User Management Hassle free Use Management with secure authentication and authorization. No backend and server setup required Manage your app users using API or AppHQ UI Console Extend User Profile as much as you want. Create user engaging apps with easy to use APIs Activate and revoke user accounts with a single click.
roberthayes222

NoSQL Storage Api, NoSQL cloud Api, NoSQL Database Storage Api - 0 views

api.shephertz.com/...storage.php

nosql storage api cloud database app42

shared by roberthayes222 on 22 Jan 13 - No Cached
  • NoSQL Storage On the fly database creation for your app on the cloud Store app data in JSON objects at App42 Cloud in Single API call Powerful Query Interface to fetch your stored JSON objects Support of Map Reduce on your stored JSON objects No worries of installation, data disaster and recovery Runs inside scalable and secure App42 platform
escaping1 escaping1

sac vanessa bruno petit pas cher Senatore - 0 views

Le futur entraîneur de Chelsea a sélectionné sept joueurs qui n'ont jamais porté le maillot italien: Marco Benassi (milieu/Torino), Danilo Cataldi (milieu/Lazio), Armando Izzo (défenseur/Genoa), Le...

sac vanessa bruno lin pas cher petit neuf

started by escaping1 escaping1 on 17 May 16 no follow-up yet
« First ‹ Previous 41 - 60 of 809 Next › Last »
Showing 20▼ items per page