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Showing posts with label Android. Show all posts
Showing posts with label Android. Show all posts

May 21, 2012

No Java Required: Write Android Apps in C#


No Java Required: Write Android Apps in C#

XobotOS is a Xamarin-developed project that translated millions of lines of Java to C#.
Java is the underlying code for the Android OS. But one company has changed all that, ripping out most of the Java and replacing it with C#.
That means .NET developers can code in a familiar language and produce apps that leverage C#'s advantages, including speed increases.
It started as a skunkworks project for Xamarin. Xamarin's claim to fame is Mono, an open-source framework allowing Android and iOS apps to be built using C# running on top of Java. Now, with what the company calls the XobotOS Research Project, the Java layer has been removed via a "machine translation of Android from Java to C#," according to ablog post from Xamarin CTO Miguel de Icaza.

Building XobotOS involved converting more than a million lines of Java code into C#, de Icaza wrote. A tool called Sharpen was used to help in the translation, and the project resulted in an improved version of Sharpen, de Icaza says. Most of Androids layouts and controls, de Icaza says, have been converted, and to demonstrate, the post includes a Java-free screenshot of  XobotOS running on a Linux desktop.
In terms of speed improvements, the blog includes a bar chart of a benchmark from a simple binary tree implementation in Java and C#. The chart shows a huge increase in performance between the two languages.
Xamarin has made XobotOS available on github. de Icaza says that XobotOS won't be "a focus" going forward, as the company wants to put its efforts toward its core products, Mono for Android and MonoTouch.
One other possible benefit of using XobotOS for Android development is that it would eliminate the kind of potential legal entanglements that Google finds itself in with Oracle, the patent-holder for Java. Replacing Java with C# would, of course, inoculate developers from the clutches of Oracle's lawyers.

About the Author
 
Keith Ward is the editor in chief of Visual Studio Magazine. 

Apr 2, 2012

Samsung Galaxy S3 display 'will rival the iPhone'


Samsung Galaxy S3 display
Reports suggest the Samsung Galaxy S3 will come sporting a Super AMOLED HD plus display when it finally launches in the second or third quarter of 2012.
Digitimes spoke to sources in Samsung's supply chain, who revealed the Galaxy S3 is likely to ship with a 4.6-inch screen, boasting a pixel density of 319ppi – quality which will rival the retina display on the iPhone 4S.
In Depth
Samsung Galaxy S3 release date, news and rumoursSamsung Galaxy S3 release date, news and rumours
AMOLED displays provide better power consumption, reaction time, weight and thickness compared to LCD displays, which has lead to predictions that a high number of handsets will use this technology in 2012.

Still no word on a release date

Samsung is the number one producer of AMOLED displays and is looking to introduce into a number of its new models.
The Samsung Galaxy S3 is shaping up to be a stand-out mobile phone, with rumours suggesting it will sport a quad-core processor, large HD screen, 4G, NFC and beefed up camera.
We're yet to hear when the Galaxy S3 will be launched, although Samsung has said it will arrive in the first half of the year.

Feb 17, 2012

Updated: Best Android phone- which should you buy?


Updated: Best Android phone - which should you buy?
There's one key way in which Android is massively different from its Apple-branded smartphone competition - the number of phones out there running Google's hot mobile OS.
Samsung makes loads of them. Sony Ericsson makes a few. Then you've got Android-powered phones from Acer, LG, Huawei and many others, while HTC releases more in a month than all the rest added together manage in a year.
The many variations in screen size, processor power, software features and design makes finding the best Android phone for you extremely tough.
Do you physically and emotionally need a QWERTY keyboard? Are you the sort of oddball who prefers the rough pressing needed to make resistive touchscreens work? Are you struggling to work out which are the best Android Widgets? Or even stuck wondering: 'Actually, what IS Android?'
To help find the best Android phone for you, we've rounded up the ten best Android handsets out there today, rating the phones on hardware performance, OS upgrade potential and, of course, how shiny and nice they are to have and boast about to work colleagues.
So here they are - the ten best Android phones money can buy today. For many, many different reasons.

10. Sony Ericsson Xperia Mini

HTC legend
It is indeed very mini, but Sony Ericsson has performed a tech miracle in squeezing a capable 1GHz processor into its tiny chassis. The Xperia Mini runs Android 2.3, enhanced significantly by the company's user interface, which adds lots of style and extra functionality to Google's on-fire mobile OS.
The email app with its resizing preview pane is as sexy as an email app is ever likely to get, the jiggling app drawer edit screen (with the ability to delete apps right from the listing) is very nice, plus you get themes, a cool power off animation and much, much more.
brightcove : 1116060883001
The screen's responsive, text appears sharp, the camera capable of producing good stills and passable 720p video footage. It does it all in an impressively condensed package.
Quick verdict:
Small, and very nearly, perfectly formed. If you can live with seeing the world through a small-ish 3" screen, it's a great, highly usable smartphone.
  • Sony Ericsson Xperia Mini review
  • Search for the best Sony Ericsson Xperia Mini deals

9. Samsung Galaxy Note

Samsung galaxy note
Samsung took screen size to a ridiculous new level with the Galaxy Note, offering us a huge 5.3" display that's by far the largest of any smartphone out there today.
You also get a stylus, which is pressure sensitive and comes with great handwriting recognition tools, plus dual cameras (8MP and 2MP) along with an LED flash around the back and rather decent image results.
As with all of Samsung's newest Android models the Note is a solid performer, running Android 2.3 impeccably, with the same TouchWiz interface we've seen on the likes of the Galaxy S II.
With the show running at a super-high 1280x800 resolution, it's a sharp-looking, smooth-running phone for those who don't want their style cramping.
brightcove : 1268512853001
Quick verdict:
A great mobile, as long as you're not easily embarrassed by whipping out something so comically huge in public.
  • Samsung Galaxy Note review
  • Search for the best Samsung Galaxy Note deals

8. Orange Monte Carlo

Orange monte carlo
Orange stuck its logo on another ZTE-made phone in 2011, hoping to recreate the successes of the super-budget Orange San Francisco. And there are some reasons to upgrade to the £150 Monte Carlo, the most obvious being the larger screen.
ZTE's stuck a large 4.3" display in here, which runs at a decent 800x480 resolution. It's not as dazzling as the displays on similarly sized phones like the Xperia Arc, but it's still a big, solid screen considering the budget price.
Unfortunately the Android 2.3 OS has been modified by Orange, which has made it all... orange. But at least the network has added a nice gesture-based control system that works well, while the Monte Carlo also generally runs smoothly, powering web pages and apps well. Shame about the VGA video recording spec, though.
brightcove : 1426595741001
Quick verdict:
It doesn't have quite the same transformational appeal as the San Fran, but it delivers a lot of phone and punch for the money.
  • Orange Monte Carlo review
  • Search for the best Orange Monte Carlo deals

7. Motorola Razr

Motorola razr
Motorola's newest flagship is by far its best Android offering so far, fusing a unique hardware design with a less obtrusive user interface skin.
In fact, Motorola's UI is actually quite fun to play with nowadays, coming with resizable widgets and its extremely clever Smart Actions automation system, which lets you set all sorts of time and location-aware rules up and running.
The phone is solidly made, and although impressively skinny, the odd, bulbous camera unit and extra-wide bezel make it feel chunkier in the handy than the likes of the Xperia Arc S and the older Galaxy S II. Still, if you like them a bit different, the Razr certainly stands out from the pack.
brightcove : 1276176311001
Quick verdict:
Impressively built, fast hardware with a great display, plus a well refined Motorola interface. Best current Moto mobile by miles.
  • Motorola Razr review
  • Search for the best Motorola Razr deals

6. HTC Desire S

HTC desire s
Nearly two years ago the HTC Desire was the cutting-edge "superphone" of choice, now its enhanced sequel is an affordable mid-range option.
That's how fast things move in the Android world. But don't dismiss the Desire S because of its workmanlike approach. What you get here is a solid phone with a great 3.7" screen, powered by Android 2.3 and HTC's updated Sense 2.1 user interface. The result is a very slick and smooth experience.
The camera is sadly a weak point, though, offering the same blotchy 5 MP output as the original Desire. But apart from that, everything here's a little better than in last year's Desire. Which makes this a fantastic smartphone and a great entry to Android.
brightcove : 1018924928001
Quick verdict
A superb update of the HTC Desire. Slightly smaller and a little faster, it's a perfect gradual evolution of 2010's smash. Available on some very cheap contracts, too.
  • HTC Desire S review
  • Search for the best HTC Desire S deals

Best Android phone: 5-1

5. Samsung Galaxy Nexus

Samsung galaxy nexus
Google and Samsung's 2011 flagship is currently the only official way to get the all-new Android 4.0 experience on a mobile, and for that reason alone it's a must-have for any Android user.
As a smartphone itself, it's a good all-round performer, too, although the omission of an SD card slot is a slightly odd decision.
The large 4.65" screen is glassy, smooth and responsive, running at an immense 720 x 1280 HD resolution. It's bright, plus the 1.2GHz dual-core processor keeps everything running well, while the curved chassis is just about stylish enough to give the phone an edge over some of the more boring black slabs out there.
The 5megapixel camera appears a little weak on the tech spec list, but image results and HD videos emerge sharp and clear - plus it has a cool timelapse feature, too.
brightcove : 1244183571001
Quick verdict:
Definitely the #1 choice for Android enthusiasts, but the lack of Flash Player support and some weird app inconsistencies mean it's probably not yet ideal for the mainstream buyer.
  • Samsung Galaxy Nexus review
  • Search for the best Samsung Galaxy Nexus deals

4. Sony Ericsson Xperia Ray

Sony ericsson xperia ray
Something for the more modest smartphone buyer, this one. Coming with a 3.3" display squeezed into a slim and angular case, the Ray's Reality Display screen is the star here.
The screen runs at 480x854 resolution, which, when packed into a relatively small space, means a super-sharp and clear display that's as clear and bright as the best of them.
The 8megapixel camera does a great job of capturing both stills and 720p video, while Sony Ericsson's latest Android 2.3 update includes some nice touches like a gesture-based, line-drawing keyboard, plus 2D and 3D panoramic photo capture. It's a very finely tuned and sweet little phone.
brightcove : 1189106106001
Quick verdict:
Would we get in trouble for suggesting this is perfect for lady smartphone users looking for a small, stylish and generally less macho Android experience? Hope not.
  • Sony Ericsson Xperia Ray review
  • Search for the best Sony Ericsson Xperia Ray deals

3. Sony Ericsson Xperia Arc S

Sony ericsson xperia arc s
Sony Ericsson's glamorous take on Android is an absolute pleasure to use, with its curved body feeling great in the hand and the 2.3 version of Google's OS now powered by an updated 1.4GHz processor.
It's not dual-core, but it all moves very well indeed, with Sony Ericsson's user interface additions giving the Arc a stylish feel in use, too. The 4.2" BRAVIA Engine "Reality Display" is bright and colourful, with text sharp and well defined thanks to the high 854x480 resolution.
The 8 MP camera produces great stills, with 720p video looking good despite the occasional glitch when recording. The Arc S is simply a lovely, well designed thing to have and enjoy, that shows both Android and Sony Ericsson's phone-making skills in a great light.
brightcove : 1300041735001
Quick verdict:
Unbelievably thin and stylish, with internal bits that keep everything running fast and reliably. Good camera with HD video - it's a fantastic package.
  • Sony Ericsson Xperia Arc S review
  • Search for the best Sony Ericsson Xperia Arc S deals

2. HTC Sensation XE

HTC sensation xe
The HTC Sensation XE is the Taiwanese brand's update of 2011's HTC Sensation, arriving with a slightly faster dual-processor clock speed and integrated Beats Audio features thanks to HTC's deals with the posh headphone manufacturer.
With a 4.3-inch qHD screen and the latest version of Sense coming on board makes it a really zippy and clear experience, and the addition of HTC Watch brings movie streaming and purchase to your handset.
It's a well-built and solid device, and the 8MP camera can record in sparkling 1080p too - it might not be the top Android handset, but it's very, very close.
brightcove : 1270534433001
Quick verdict
We think the Samsung Galaxy S2 is a slightly better proposition overall, thanks to better screen technology and a slimmer chassis. But for the HTC fans out there, the Sensation XE is definitely the new alpha handset on the block.
  • HTC Sensation XE review
  • Search for the best HTC Sensation XE deals

1. Samsung Galaxy S2

HTC desire
You won't believe how thin and light it is. Then you won't believe how fast it is. The Galaxy S II offers a genuinely exciting experience, managing to eclipse all other Android phones in every field.
Apps install ridiculously quickly, while browsing web pages is so fast it's hard to believe you're looking at a telephone screen. The large display is robust and, despite the slim and lightweight case, build quality manages to impress.
You get the latest Android 2.3.3 onboard, while many of Samsung's Touchwiz widgets are resizable, making it a phone that's fun to customise and spend time playing with. This is Android made fast and thrilling.
brightcove : 889800904001
Quick verdict:
The first of 2011's dual-core Android phones to offer an experience that feels significantly ahead of the competition. Incredibly fast in all areas, with a super screen and very useful camera - it's Android taken to the next level.

Jan 19, 2012

Sony Ericsson launches 'Live with Walkman' phone

Sony Ericsson has announced the launch of 'Live with Walkman' smartphone in India. The Android-based smartphone is priced at Rs 14,549 approximately. Already available online in Indian for quite some time, 'Live with Walkman' features 1GHz processor, Android 2.3 Gingerbread OS, 3.2 inch display, 5MP rear camera and front camera. The phone is also speculated to get Android 4.0 update in the future. 

Measuring 4.2 x 2.2 x 0.6 inch and weighing 115 grams, the phone has an internal phone memory of up to 320 MB with 512MB RAM and expandable memory of upto 32GB via microSD memory card slot. 

Some other features include 3G, Wi-Fi with DLNA support, Bluetooth with A2DP, aGPS, FM Radio with RDS, and 3.5mm audio jack. 'Live with Walkman' ships with a 1200 mAh battery and is available in two colours -- black and white.

Dec 14, 2011

Aakash goes on sale for Rs 2500 online

Datawind, the maker of the world's cheapest tablet has put up for sale about 30,000 tablets online at a price of Rs 2500 each, with a delivery period of seven days.

The seven inch tablet with Android 2.2 is now available through its portal aakashtablet.com. "We have put up on sale about 30,000 tablets online, which will have a cash on delivery of 7 days. We have achieved pre-sale orders of about 400,000 tablets from individuals and corporates. But current supplies will only be limited for individual buyers," Datawind CEO and founder Suneet Singh Tuli told ET.

Aakash's next commercial version called the Ubislate 7, which has a faster processor, is slated to be launched late January. Ubislate 7 is set to have a 700 Mhz processor compared to the 366 MHz processor in Aakash. Ubislate 7 will be priced at Rs 3000 for sale online.

Datawind though seems to be struggling with customer service issues for online retail, even though the sale is only for a limited number of tablets.

According to sources, the Indian government is also planning to provide a new specification for Aakash, which may come with a faster processor and better battery life. The current version of Aakash has a battery life of about 1.5 hours. An email to the Ministry of Human Resource and Development, which is supplying the tablets to schools and colleges remained unanswered.

The government till now procured only 10,000 tablets. It has still not procured the remaining 90,000 tablets for distribution in schools and colleges, even as other nations have expressed interest to the government for similar low-cost computing initiatives.

Dec 13, 2011

Skype For Android Gets Picture And Video Messaging Support


The holidays are drawing ever closer, and with the holidays usually come embarrassing family moments. The folks at Skype, perhaps sensing the potential for capturing some comedic gold around ye old Christmas tree, have updated their Android app with support for picture and video messages.
The functionality works over both WiFi and 3G data connections, so even the most random holiday snafu can be easily sent to your Skype contacts. The update also packs a fix meant for Tegra 2-powered devices that have experienced lower battery life and iffy video quality, so G2x owners will want to get on the ball.

Dec 10, 2011

Editor's PickNews Article Sunday Night Is Most Popular Time to Download Android Apps


Image
Android users from 190 countries download apps every day, according to one of the infographics. The U.S. is not the most app crazed country either — it ranked fourth behind South Korea (no. 1), Hong Kong (no. 2) and Taiwan (no. 3). Rounding out the top ten includes Singapore (no. 5), Sweden (no. 6), Israel (no. 7), Denmark (no. 8), the Netherlands (no. 9) and Norway (no. 10).
Meanwhile, the top categories for Android app downloads include games (25.6%), entertainment (12.2%), tools (11.7%), music (4.28%) and social (4.08%).
But the most interesting tidbits were associated with how Android owners use their apps. About 12 billion miles are navigated on Google Maps each year — which is equivalent to more than 37,000 trips to the moon — and 100 million words are translated every week in 200 different countries on Google Translate.
As for when most people download apps, searching through the Android Market the night before the work week starts is evidently a common activity. The most popular time to download an Android app is 9:00 p.m. on Sunday, while the least popular time to do so is just seven hours later at 4:00 a.m. Monday morning.
Other interesting Android app stats include the following:
  • About 1.87 million hours were spent on the popular movie database app IMDb in the past four months.
  • The equivalent of 5,054 years are spent playing with popular gaming app Asphalt would owe $3.2 billion in speeding ticket fines if they took their driving habits to the streets.
  • 10 billion cans have been knocked down playing Can Knockdown. That’s a whole lot of cans.

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