Thứ Tư, 15 tháng 10, 2014

Samsung Galaxy Note 4 Review: Big, Powerful and Samsung's best yet

When I first played with the Galaxy Note 4 at Samsung's NYC launch event, I thought it was going to be a relatively minor upgrade over the Note 3. Strapped down with security devices in the hands-on area, it didn't strike me as a huge step forward for the Note line. Same screen size, similar design, no head-turning new features. Nothing much to see here, right?
Wrong.
Contrary to those initial hands-on impressions, the Galaxy Note 4 is a big update – not just for the Note line, but for Samsung in general. It's the company's biggest departure from the more-More-MORE! approach that we saw in years past, replacing it with a subtler – more powerful – focus on overall experience. The resulting product just might be the best smartphone I've ever used.
That isn't to say that the Galaxy Note 4 is perfect. Its fingerprint sensor is Samsung's best yet, but it still isn't as effortless to use as Apple's Touch ID. And though Samsung's S Pen stylus is also better than ever, its plastic build still feels a little cheap in hand. Even the best have room to improve.

Premium + Samsung?

The Note 4 has metallic edges that (even with a pleather back) give it an overall premium ...
Speaking of build materials, Samsung finally ditched its trend of all-plastic devices and threw in some metal. The band running around the edge of the Note, which was plastic in the Note 3, is now made of aluminum and magnesium – complete with iPhone-like chamfered edges. It looks and feels solid and premium, adding a high-end design aesthetic that we aren't used to seeing from Samsung phones.
This was one of Samsung's biggest missing ingredients through the last few years. Its flagship phones always had cutting-edge internals, but their plastic exteriors were a bit out of sync. With the Note 4, Samsung's outsides finally catch up with its insides.
The phone's body does still have more plastic than it does metal (the Note 4's back is a faux leather plastic, similar to what we saw in the Note 3), but this doesn't bother me. Pleather may not be for everyone, but its soft touch feels great in hand. It's also durable: when removed from the phone, you can bend the backing in two and it pops back into place like nothing happened.
I don't need all metal all the time; I just want a phone that feels premium in hand. And the Note 4 ticks that box.

Dazzling restraint

Samsung Galaxy Note 4 (Photo: Will Shanklin/Gizmag.com)
This 4th Galaxy Note is the first that doesn't have a larger screen than its predecessors. At 5.7 inches, its display is the exact same size as the one on the Note 3.
This might sound disappointing, but, after spending over a week with the new Note, I think it's an encouraging sign: I see a Samsung that's exercising restraint.
The thing is, the Galaxy Note didn't need a bigger screen. Once you move into ~6-in display territory, you start to limit your audience. They become niche products: less big smartphones, and more small tablets that you have to somehow finagle into your pocket. The Galaxy Note line is better off as the former than the latter.
As for screen quality, the Note 4 did get a big upgrade. For starters, its Quad HD display packs in the pixels about as densely as you'll see these days (515 pixels per inch). It has roughly the same resolution as the razor-sharp Galaxy Tab S series of tablets, only squeezed into much tighter quarters. Everything is crisp.
Though pixel density is fine and dandy, it isn't everything. Fortunately the Note's screen also overachieves in other areas.
Samsung Galaxy Note 4 (Photo: Will Shanklin/Gizmag.com)
Being an AMOLED display, it has rich colors and deep blacks. And if you don't like the hyper-saturated look that AMOLED screens deliver, you can switch among several different screen modes – including a couple that are more toned down, like what you'd see on an IPS display.
Viewing angles are also outstanding (you can look at the Note's screen from an almost completely horizontal angle, and it still looks bright, clear and colorful). The screen also gets bright: I rarely set it higher than 55 percent and, even in sunny New Mexico, it still looks plenty bright for my eyes.

S Penmanship

If the Galaxy Note 4 were just a big smartphone with a terrific screen, then it would still be sitting next to the iPhone 6 Plus at the top of the phablet heap. But in my book, what pushes the Note ahead is its stylus.
I always thought stylus and phablet fit together like hand in glove. Most of the time you're going to be using a super-sized phone with two hands anyway: cradle the device in your secondary hand, while you point with the index finger on your dominant hand. So why not replace that finger with a stylus? It gives you a sense of fine precision and control that your stubby fingers can't replicate.
Action Memo on the Samsung Galaxy Note 4 (Photo: Will Shanklin/Gizmag.com)
The S Pen (Samsung's name for its stylus) in the Note 4 is a big step forward from its predecessors. In older Galaxy Notes, you had to press down a bit to register the pen's taps and swipes. There also wasn't an enormous range of sensitivity.
But with the Note 4, you only have to touch the screen ever-so-lightly. Barely brush the pen's tip against the glass and it still registers. And when you're jotting down notes, pressing down hard registers as a dark and thick line, while a very light touch still registers as a light line. It's like using a physical pen. The overall stylus experience – whether scribbling notes, typing an email or scrolling through a web page – is 100 percent smooth and intuitive.
The S Pen gets some extra software-based functionality in the Note 4 as well. Your main pen features still live in Air Command (the pop-up pie menu that we first saw in the Note 3). Its options are a little different this time around, though, with the Note 3's S Finder and Pen Window options missing the cut.
The star of the Air Command show is still Action Memo, a virtual scratch pad that's never more than a click and a tap away. And if your scribbled note includes something like a phone number, email address or web URL, you can automatically shoot it to the appropriate app after jotting it down (like adding a number as a contact or jumping to a URL in your browser). The OCR (text recognition) is still very good.
Samsung Galaxy Note 4 (Photo: Will Shanklin/Gizmag.com)
This is all the same as it was in the Note 3 – only with one subtle, but very cool, addition. Now you can stash your note on your home screen as a widget. Hold down on the thumbtack icon in Action Memo, and your note shrinks down into a tiny post-it note (unless your writing is teeny-weeny, it will still be legible). You can move the post-it around just like you would an app icon, or resize it like you would any other widget. And when you're done, just long-press on it and drag it into the trash. It's a great way to keep short-term notes handy.
Smart Select is another highlight of the Air Command menu. It lets you wrap a selection box around anything on your screen, and quickly stash it away for safe keeping. It's similar to the Note 3's Scrap Booker option, but better.
First, you don't have to draw a line all the way around your target; instead the pen creates a selection box (just drag from corner to corner). Second, if you select an image that includes text, it can use that same great text recognition to translate it into something you can directly edit or copy.
I see Smart Select as another example of the Note 4 adding fewer new features, but more that you'll want to use.
Samsung Galaxy Note 4 (Photo: Will Shanklin/Gizmag.com)
My favorite new S Pen feature is text selection. To use it, just hold down the S Pen's button and drag the pen over the text – similar to how you would with a mouse on a PC. It works with images in the gallery app too (selecting large chunks of photos was always a chore before this).
After selecting some text, there's also a new clipboard history toggle that sits alongside the usual copy/paste/cut options. Clipboard history was on my wish list for new features when I reviewed the Note 3, so it's nice to see Samsung ticking that box.
Samsung Galaxy Note 4 S Pen (Photo: Will Shanklin/Gizmag.com)
My only nitpick with the S Pen is that it feels like a remnant of Samsung's plastic-only past. It would have been great to see a metallic S Pen, but, alas, its plastic exterior is almost exactly like what we saw in the Note 3.
... and it isn't just that the pen looks cheap – it also picks up wear and tear more easily than I'd like. After about six days of regular use, I noticed some tiny scuffs on the pen's top end. It doesn't affect the experience of using it, but it would have been nice to see the stylus' build quality matching the phone's.

Swiping and shooting

The Note 4's fingerprint sensor isn't as simple to use as the iPhone's Touch ID, but it's ...
This year the Note has a fingerprint sensor in its home button, similar to the ones found in the Galaxy S5 and Galaxy Tab S. The Note's is still swipe-based, but it's more accurate than those devices' sensors. After learning exactly how to swipe (from the bottom of the screen down across the sensor), I can get it to register my fingerprint on the first try pretty much every time I unlock the phone.
While the Note's sensor is a welcome improvement – and an easy way to keep your phone secure – the iPhone's Touch ID requires no thought or effort whatsoever. You just rest your finger on it, and it reads it. This is one area where the iPhone 6 Plus has a leg up on the Note 4.
The Samsung Galaxy Note 4 has an excellent camera (Photo: Will Shanklin/Gizmag.com)
The Galaxy Note 4's camera is almost exactly like the one found in the Galaxy S5 – which is to say it's damn good. The camera app also fires up from the lock screen slightly faster than the GS5's, though still a hair slower than I'd like (I can go from sleeping phone to snapped pic in around 5 seconds).
One nice touch is Advanced Digital Zoom. On most smartphone cameras, zooming is the same as cropping. If you cropped a shot after the fact, the result would be exactly the same as if you'd zoomed in while shooting. But on the Note 4, when you're zooming between 4x and 8x, it snaps multiple exposures and automatically merges them into one more detailed image.
The resulting shots are clearer, with noticeably more detail, than zoomed photos on other smartphones' cameras. They still look a little muddy (that can only be helped so much with digital zoom), but it's a clearer and more detailed kind of mud.
Unaltered camera sample from Galaxy Note 4, using Advanced Digital Zoom (4x) (Photo: Will ...
There's also Optical Image Stabilization (OIS) onboard. It's a good pairing with those zoomed-in shots, where shaky hands are more likely to cause trouble. During my time with the Note, it does seem like I've taken fewer blurred shots than I take on other phones.
If you're into selfies, the Note 4 has two modes that can help you to capture your mug. Wide-angle selfie mode is a panorama mode for selfies: tilt the phone left and right (it prompts you) to squeeze more friends or background into the shot. Everyone does need to hold still while panning, though, or you'll get some missing limbs or Picasso-esque faces.
Rear-facing selfie mode lets you use the higher-resolution rear shooter to snap a selfie. After switching to this mode, just hold the phone away from you, with its back facing you, and the phone will beep when you're in the frame (it detects your face). A countdown then begins and it will snap a high-res self-portrait. It works as advertised.

Battery

Samsung Galaxy Note 4 with battery cover removed (Photo: Will Shanklin/Gizmag.com)
Samsung promised better battery life in the Note 4, and I can vouch for that. In our standard test, where we stream video over Wi-Fi with brightness set at 75 percent, it only dropped 10 percentage points per hour. That's the best score we've seen from any smartphone we've tested (though the Galaxy S5 and HTC One M8 were hot on its heels).
If you do run out of juice after hours of gaming or a binge House of Cardssession, the Note 4 juices up quickly. As long as you're using the default charger, Adaptive Fast Charging Mode kicks in, which Samsung says can get your phone from 0 to 50 percent battery in "about half an hour."
I put Fast Charging to the test. After letting the Note completely conk out, I plugged it in with the supplied cable and adapter and left its screen off (only turning it on occasionally to check the battery level). After half an hour, it had jumped to 41 percent. To get all the way from 0 to 50 percent, it took 37 minutes (I suppose that's "about" half an hour).
It might have charged quicker if I'd put it into Airplane Mode, but since you probably won't want to do that, I'd say these results are about what you'll see. Either way, it's impressive. Fast Charging is a terrific bonus that can get your Note's battery back to a comfortable level before you head out the door.
Ultra Power Saving Mode, familiar to Galaxy S5 owners, also makes its way to the Note 4. If you aren't familiar with this innovative software feature, you can hit up our GS5 review for more detail (it's unchanged in the Note).
... and of course you can always just buy a spare battery to swap out in a jam. If you remember to a) buy a spare, b) keep it charged and c) keep it with you, then it's a big advantage that Galaxy devices have over sealed-shut rivals like the iPhone, Nexus and HTC One. If you don't remember those three things, though, then it won't mean anything.

Multitasking

Multi Window lets you run two apps in a split-screen view (Photo: Will Shanklin/Gizmag.com...
Split-screen multitasking has always been a big part of the Galaxy Note experience. Samsung's Multi Window is a good fit for the Note's big screen, letting you squeeze two apps onscreen at once. With the Note 4, you can also drag and drop some content (text or images) between Multi Window apps.
It's a great idea, if somewhat limited in execution. Multi Window itself has always been hit-or-miss with third-party apps (meaning many of them aren't compatible), and the drag-and-drop functionality is even more limited. So while you can drag text or images from Samsung's browser and drop it into a message in Samsung's messaging app (very cool), you can't drop it into a Hangouts message. Ditto for dragging an image from the Gallery into a Samsung Email (yep), but not into the Gmail app. On the whole, it's an awesome feature – but one that I wish was universal.
Two pop-up windows on the Samsung Galaxy Note 4 (Photo: Will Shanklin/Gizmag.com)
Pop-up Window, which replaces Pen Window, lets you run an app in a small window sitting on top of another. With the Note 4, you activate it by swiping down from the upper-left corner of the screen. As long as you're in an app that supports it, it will shrink into its own little desktop-style floating window. You can then resize it, move it, minimize it into a floating bubble, or close it. You can also open up to five pop-up windows at once.
Samsung suggests some examples where Pop-up Window could come in handy: like popping up the camera app so you can take pictures while also looking at walking navigation, or popping up a YouTube video while you take notes. Situations like that don't come up often in my workflow, but, if nothing else, Pop-up Window sits alongside Multi Window as a nice option to have waiting for you.

Head of its class

Samsung Galaxy Note 4 (Photo: Will Shanklin/Gizmag.com)
The Galaxy Note 4 shows that Samsung isn't content with just creating the phablet category – it wants to make the best phablet, year after year. And despite having much stiffer competition this year (especially from the iPhone 6 Plus and LG G3), I'd still cast my ballot for the Galaxy Note as head of this class.
The biggest question might be whether you want a large-screened smartphone at all. If you've never held a phablet, then you might want to wrap your hands around a display model to see if it's right for you. For what it's worth, my average-sized male hands have no problem whatsoever with it. My wife, whose hands are much smaller, also thought it felt comfortable.
If you are comfortable holding the Note 4, then you get one device that can serve as both big smartphone and small tablet. There are still perks to owning tablets (even the smallish iPad mini gives you 116 percent more screen than the Note 4 does), but I love the phablet's one mobile device to rule them all approach. It simplifies my device workflow: the one I want is always waiting in my pocket.
Samsung Galaxy Note 4 (Photo: Will Shanklin/Gizmag.com)
The Galaxy Note 4 isn't the kind of upgrade that screams at you from the showroom floor, flashing its new features like an air traffic controller. But it's a much better upgrade: the kind that reveals itself more the longer you spend with it. For a company once synonymous with plastic, glitz and bloat, this is a huge step in the right direction.
With a long list of strengths and no major weaknesses, the Note 4 is Samsung's best mobile device to date – and probably the best smartphone I've ever used.
The Galaxy Note 4 is up for pre-order now. It goes on sale in the US this Friday, October 17, starting at $300 on-contract or $700 full retail.

Thứ Ba, 7 tháng 10, 2014

What's New in Android 5.0 Lollipop


Android 5.0 Lollipop is the biggest update of Android to date, introducing an all new visual style, improved performance, and much more. Android 5.0 Lollipop also extends across screens big and small, including phones, tablets, wearables, TVs and cars, to give your users access to information when they need it most.
To get you started on developing and testing on Android 5.0 Lollipop, here are some of the developer highlights with links to related videos and documentation.

User experience

  • Material design for the multiscreen world — Material Design is a new approach for designing apps in today’s multi-device world that takes a comprehensive strategy to visual, motion, and interaction design across a number of platforms and form factors. Android 5.0 brings Material Design to the platform, with a full set of tools forimplementing material design in your apps. The system is incredibly flexible, allowing your app to express its individual character and brand with bold colors and a variety of responsive UI patterns and themeable elements.
  • Enhanced notifications — New lockscreen notifications let you surface content, updates, and actions to users at a glance, without needing to unlock their device. Heads-up notifications let you display content and actions in a small floating window managed by the system, no matter which app is in the foreground. Notifications are refreshed for Material Design and you can use accent colors to express your brand.
  • Concurrent documents in Overview — Now you can organize your app by tasks and present these concurrently as individual “documents” on the Overview screen. For example, instant messaging apps could declare each chat as a separate document. Users can flip through these on the Overview screen to find the specific chat they want and jump straight to it.

Performance

  • Android Runtime (ART) — Android 5.0 runs exclusively on the ART runtime. ART offers ahead-of-time (AOT) compilation, more efficient garbage collection, and improved development and debugging features. In many cases it improves performance of the device, without you having to change your code.
  • 64-bit support — Support for 64-bit ABIs provides additional address space and improved performance with certain compute workloads. Apps written in the Java language can run immediately on 64-bit architectures with no modifications required. NDK r10c includes 64-bit support, for apps and games using native code.
  • Project Volta — New tools and APIs help you build battery-efficient apps. Battery Historian, a tool included in the SDK, lets you visualize power events over time and understand how your app is using battery. The JobScheduler API lets you set the conditions under which your background tasks and other jobs should run, such as when the device is idle or connected to an unmetered network or to a charger, to minimize battery impact. More in this I/O video.
  • OpenGL ES 3.1 and Android Extension Pack — With OpenGL ES 3.1, you get compute shaders, stencil textures, and texture gather for your games. Android Extension Pack (AEP) is a new set of extensions to OpenGL ES that bring desktop-class graphics to Android including tessellation and geometry shaders, and use ASTC texture compression across GPU technologies. More on what's new for game developers in this DevBytes video.
  • WebView updates — We’ve updated WebView to support WebRTC, WebAudio and WebGL will be supported. WebView also includes native support for all of the Web Components specifications: Custom Elements, Shadow DOM, HTML Imports, and Templates. WebView is now unbundled from the system and will be regularly updated through Google Play.

Workplace

  • Managed provisioning and unified view of apps — to make it easier for employees to have a single device for personal and work use, framework enhancements offer a unified view of apps, notifications & recents across work apps and personal apps. Profile owner APIs, in the workplace context, let administrators create and manage work profiles and defined as part of a new managed provisioning process. More in this I/O video.

Media

  • Advanced camera capabilities — A new camera API gives you new capabilities for advanced image capture and processing. On supported devices, your app can capture uncompressed YUV capture at full 8 megapixel resolution at 30 FPS. You can also capture raw sensor data and control parameters such as exposure time, ISO sensitivity, and frame duration, on a per-frame basis.
  • Audio improvements — The sound architecture has been enhanced, with lower input latency in OpenSL, the addition of multichannel-mixing, and USB digital audio mode support. More in this I/O video.

Connectivity

  • BLE Peripheral Mode — Android devices can now function in Bluetooth Low Energy (BLE) peripheral mode. Apps can use this capability to broadcast their presence to nearby devices — for example, you can now build apps that let a device function as a beacon and transmit data to another BLE device. More in this I/O video.
  • Multi-networking — Apps can dynamically request networks based on capabilities such as metered or unmetered. This is useful when you want to use a specific network, such as cellular. Apps can also request platform to re-evaluate networks for an internet connection. This is useful when your app sees unusually high latency on a particular network, it can enable the platform to switch to a better network (if available) sooner with a graceful handoff.

Get started!

You can get started developing and testing on Android 5.0 right away by downloading the Android 5.0 Platform (API level 21), as well as the SDK Tools, Platform Tools, and Support Package from the Android SDK Manager.
Check out the DevByte video below for more of what’s new in Lollipop!

Chủ Nhật, 10 tháng 8, 2014

Introducing Android Studio – Google’s IDE of the future for Android development

There is a new IDE on the horizon for Android developers, and rumors say it’s faster and easier to navigate than the current Eclipse-based Android Developer Tools plugin. In this article, I’ll introduce you to Android Studio, Google’s IDE of the future for Android app development.
Google’s Android Studio is a development tool for Android applications based on the IntelliJ IDEA platform, one that managed to attract a lot of hype when it rolled out in mid-2013. IntelliJ IDEA on the other hand in case you’re not so familiar with it, is a leading IDE for Java Development from a company called JetBrains. IntelliJ IDEA has been around for a long time now. Since the native code for Android development is Java, you can tell that IntelliJ IDEA is primarily used for Android app development.
That said, this article is not about IntelliJ IDEA but rather on Android Studio, the new IDE by Google for Android development. Roughly a year later, the platform is still in ‘early access preview,’ and work on it is ongoing. Eclipse, on the other hand, is the granddaddy of IDEs; although it doesn’t offer native Android support, it does have some nice tools to help you build Android applications—one such tool is the Google Plugin for Eclipse, made by Google.
In otherwords, before now and still currently in use for Android App development is the ADT(Android Development Tools) which is based on Eclipse. Personally, I still use Eclipse, especially in signing, proguarding and packaging apps. When I typically don’t use Eclipse is in times when I’m working on a game app, then I switch to GameSalad or if I’m building a cross-platform mobile web app using the PhoneGap framework in which case I use Dreamweaver and Aptana Studio. Setting up and using Dreamweaver with PhoneGap for Android development would be an article for another time.

Now back to Android Studio

Like I said earlier, Android Studio is a new Android development environment based on IntelliJ IDEA. It provides new features and improvements over Eclipse ADT. It is still in its beta version and will be the official Android IDE once it’s ready. On top of the capabilities you expect from IntelliJ, Android Studio offers:
  • Flexible Gradle-based build system.
  • Build variants and multiple APK generation.
  • Expanded template support for Google Services and various device types.
  • Rich layout editor with support for theme editing.
  • Lint tools to catch performance, usability, version compatibility, and other problems.
  • ProGuard and app-signing capabilities.
  • Built-in support for Google Cloud Platform, making it easy to integrate Google Cloud Messaging and App Engine.

Word of Caution:

Android Studio is currently in beta. Some features are not yet implemented and you may encounter bugs. If you are not comfortable using an unfinished product, you may want to instead download (or continue to use) Eclipse with ADT.
Now, lets review some of the features of this IDE and see why you may want to use it, in contrast to the already existing Eclipse ADT

Drag and Drop Gui Designer

One supposedly great feature of Android Studio is its layout designer with a drag-and-drop interface. But the reality is, unless you’re a Visual Basic aficionado who’s spent years drawing out sophisticated 3D interfaces with chiseled buttons and can’t quite break the habit, the amount of time you’re going to spend on drawing out the interface is minimal. Yes, you want a good, usable interface—but if you’re writing a serious application for serious work, most of your time will be spent on code, not tweaking visuals.
Verdict: Draw

Code Completion

The more time you spend as a programmer grinding out code, the more you appreciate code completion. For me personally, the most important part is when the IDE tells me the member names of an object. In general, I found that the code completion is better on Android Studio than Eclipse, which seems to get a little confused at times and doesn’t always give accurate results.
Verdict: Android Studio (by a hair)

Gradle Integration

Android Studio uses the Gradle set of build tools; in fact, it’s so integrated, it’s next-to-impossible to use a different tool. In other words, you’re stuck: if you’re moving from Eclipse to Android Studio, and not already using Gradle in Eclipse (which offers decent support via plugins), you’re going to have to switch.
That said, Gradle is a really great tool, and if you do make the decision to go with Eclipse, I nevertheless encourage you to look at Gradle’s features, try it out, and see if it fits with your project. And if you want to go with Android Studio, don’t despair about being stuck with Gradle; it’s quite good.
Verdict: Android Studio

User Interface

Eclipse is big, and perhaps a bit cumbersome. I’ve been using Eclipse since it first became popular a decade ago, so I know my way pretty well around its interface and quirks. (I do remember being a bit overwhelmed at first, but let’s face it: most IDEs are overwhelming when you first start using them.) With that in mind, I find that the menu items and tools in Android Studio tend to get me where I need to be a bit more quickly and easily compared to their counterparts in Eclipse, even with the Android plugin.
That being said, there’s another aspect to the interface: Android Studio was built specifically for Android, while Eclipse was built to be a general all-purpose IDE that can be used with any platform and any language (although Java is clearly the main focus).
Verdict: Android Studio

Workspaces and Projects

One thing that I’ve always felt is a bit unnatural in Eclipse is the way it deals with workspaces. When you want to work on multiple projects in Eclipse, you combine them into a workspace. In order to switch to a different workspace, you select the path, and then Eclipse restarts. That always seemed awkward to me. If you want to copy projects between the workspaces, things can quickly turn into a mess—yes, there are proper ways to do it, but it’s very easy to screw up.
I’m not particularly fond of Microsoft Visual Studio, but I’ve used it in recent years more than any other IDE (due to paying customers needing work in it), and I will say that managing projects and workspaces (called solutions) in Visual Studio is far easier than they are in Eclipse, in my humble opinion.
As for Android Studio, you still have the equivalent to Eclipse’s workspaces and Visual Studio’s solutions. With Android Studio, everything is encapsulated into a project. (So in this sense, a project in Android Studio is more like a workspace in Eclipse.) Within your project you have modules; your main set of code, such as the app you’re building, will likely be one module. If you have a library, that will be another module. But other things qualify as a module as well, such as build scripts. To me, this makes a good bit more sense and seems much more natural to me. (Also, for what it’s worth, this is a concept Android Studio inherited from IntelliJ IDEA.)
Verdict: Android Studio

Conclusion

If you’re using Eclipse, I encourage you to try out Android Studio for a few days and see how it works for your project. If it fits the bill, then go ahead and switch. This is true especially if you’re relying on the Google plugin for Eclipse or the Eclipse ADT, as Google seems to have more focus on Android Studio, and either way you’re tied to Google.
Should you switch from Eclipse to Android Studio? I say try it. Use it, see what you think, and make your decision; I suspect you’ll like it. If you’re already using Eclipse, try out Android Studio and, if you like it, decide how easily you can switch over to it. You can accomplish the same things with either tool—it’s more a question of ease-of-use.

Android studio can be downloaded here

Here are a couple of screenshots from the program:

Thứ Bảy, 28 tháng 12, 2013

Review: iPhone 5s

Gizmag reviews Apple's iPhone 5s, the latest iterative 'S-series' update out of Cupertino

Apple has settled into a pattern. While most smartphone makers try to blow our minds once a year with eye-catching new designs, shapes, and sizes, Apple has stuck to its guns: a redesigned iPhone one year, an almost identical-looking iPhone with upgraded internals the next. Is the latest iterative update, the iPhone 5s, worth jumping on? Or is this the year to hold off, or maybe test the Android waters? Let Gizmag try to answer, as we put the new iPhone 5s through the paces.
We reviewed the silver model (it's also available in gold and 'space gray')
The iPhone 5s is very familiar-looking. If you were hoping for a radical redesign, or something that feels completely different from the iPhone 5, then you're going to be severely disappointed. The 5s' weight and dimensions are identical to its predecessor. And except for its home button, dual-LED flash, and slightly different colors (apparently the gold model is all the rage), it looks identical too. Yep, the 5s is an "s"-series iPhone through-and-through.
The 5s uses Apple's proprietary Lightning connector for charging and syncing
Fortunately for Apple, the iPhone 5's look and feel have made a lot of people very happy, so the 5s isn't likely to give many people fits either. Like its predecessor, it's made of anodized aluminum. It's very light (112 g), very thin (7.6 mm), and comfortable in just about any size of hand. It disappears in your pocket more than any high-end phone on the market.
The iPhone 5s isn't the biggest, flashiest, or even the most stunning smartphone around. You could even argue that the iPhone is starting to look pretty boring next to some of its competitors. But it's still a gorgeous, extremely well-built phone. It's hard to get too nit-picky with that.

Too small, or just right?

The iPhone 5s is a minor update, but it's hard to knock the overall level of quality
The screen is also unchanged from the iPhone 5. The 5s' screen quality is still excellent, and isn't cause for any concern. Though high-end Android phones have jumped into 1080p land during the last year, Apple is standing strong with its 326 pixels per inch Retina Display. And we don't have a problem with that. Everything is plenty sharp, colors are as accurate as ever, and the simpler visual design of iOS 7 really stands out on it.
There are much sharper smartphone displays out there, but there's little to complain about...
The iPhone's screen size, however, is another matter. Apple likes to fashion itself as a company that follows its own values above all else, not letting market trends or its competitors influence its decisions. It's admirable enough, and probably accurate, given the company's recent stay-the-course, come hell or high water attitude.
But screen size is one area where Apple has fallen behind. Way behind. It's not that there's anything terribly wrong with the iPhone 5s' four-inch display. We're sure that many customers with smaller hands appreciate having a smartphone that's both small and high-end. But the smartphone market has changed. Many customers have shown that they love bigger screens, andrivals like Samsung have been happy to capitalize on that shift in taste. Apple hasn't (yet) responded to that.
The iPhone's 4' screen looks very small next to the Galaxy S4's 5' display
The iPhone 5s' screen is very small for a 2013 smartphone. I'd go so far as to call it the phone's biggest deficiency. Now, of course, not everyone wants a huge smartphone or a phablet, and Apple's sales figures prove that. But for the many customers that do want a 5" screen, Apple doesn't seem too worried about you. Customers' tastes may have changed, but Apple is still sticking to its four-inch screen guns.
Is Apple showing remarkable steadiness in the face of pressure, or pig-headed stubbornness that gives its competitors an unnecessary opening? We'll leave that one up to you. But either way, we wouldn't be surprised to see a bigger screen on Apple's 2014 iPhone (likely the iPhone 6). At some point, that turning tide has to play a role.
One advantage of the smaller screen is that it's easier to reach across the screen with one finger than on, say, the Galaxy S4. It makes one-handed tap-typing a little easier too, though a Swype-like trace keyboard would have helped out even more (we're left scratching our heads as to why Apple hasn't added that yet).

That fingerprint sensor

Under the 5s' home button lives Apple's Touch ID fingerprint sensor
Touch ID is the iPhone 5s' fingerprint sensor, and it's also its killer feature. Living beneath the phone's sapphire home button is a biometric sensor that will learn your fingerprint(s), and let you use it to unlock your iPhone and authorize iTunes and App Store purchases.
Touch ID is classic Apple. It's a brilliant marriage of advanced technology and consumer-centric simplicity. Set a passcode for your phone, train your iPhone 5s to learn your fingerprint (it coaches you to hold your finger on the sensor multiple times), and you'll be able to unlock your phone with a short hold of that finger over the home button. You can train it to learn up to five fingers for yourself or trusted friends or family, and you can also edit and delete trusted prints. Anyone who isn't on the VIP finger list will be out of luck, as they'll need your passcode to get in.
When setting up Touch ID, the 5s prompts you to hold your finger on the home button in bri...
In our testing, Touch ID worked as advertised ... with a few exceptions. The big problem was after I went swimming. Touch ID doesn't respond to wet fingers, which wasn't a surprise at all. But if your fingers get dry and ashy after coming out of the water, it also won't work. A little lotion solved this problem (can't say that phrase has ever popped up in a Gizmag review), but it reminded us that there are times when the feature doesn't always "just work."
The rest of the time, though, Touch ID was the perfect balance of smartphone security and convenience. The cutting-edge technology fades into the background, resisting the temptation to show itself off. Touch ID gives you passcode security without the hassle of entering a passcode.
... just don't expect perfection. And if you're a swimmer, live in a dry climate (I tick both of those boxes), or are just partial to long baths, you might want to lower those expectations even further.

64 bits

The iPhone 5s is Apple's latest S-series update
The iPhone 5s is extremely fast. In Geekbench 3, it scored a 2,533 (the Galaxy S4 "only" scored 1,851). And the experience of using it matches those insane benchmark results. Everything is zippy, responsive, and immediate. Like a lot of recent high-end phones, there's no reason whatsoever to hesitate about its performance.
The biggest item of note here is Apple's shift to 64-bit architecture in the iPhone 5s' A7 system-on-a-chip. What does this mean for you right now? Probably very little, if anything. It gives Apple a weapon against the claims that it's no longer innovating, and it lays the groundwork for mobile computing that behaves a lot more like desktop computing. It means that iPhones and iPads with 4 GB of RAM could be coming down the road (theGalaxy Note 3 is already inching closer, with 3 GB).
But in regular, day-to-day use today? The iPhone 5s takes the speedy, nothing-to-worry about performance of the iPhone 5, and kicks it up yet another notch.

Camera

Apart from Touch ID, the 5s' other physical difference is its dual-LED flash
The iPhone 5s has an excellent camera, easily among the best you can find on a smartphone. In our testing, low-lit shots were improved over the iPhone 5, while well-lit shots looked as good as ever.
Flash photography got a boost with Apple's dual LED flash (branded as "True Tone"), though our testing didn't necessarily reveal any breakthroughs there. The biggest difference we can tell is that flash photos look more saturated than they would on other phones. This helps, and it's a welcome change. We just didn't find it to be an extremely significant upgrade.
What's that? Want some samples? Okay then ...
Here's a simple shot in direct sunlight:
Shot in direct outdoor lighting
Here's the same setting in crappy lighting, with the True Tone flash on:
The same setting, only with no artificial lighting and the 'True Tone' flash turned on
... and this is the same setting without the flash, under low artificial lighting:
Here's the blue orchid under low artificial lighting, with no flash
You can check out this review's image gallery for a few more samples.

iOS 7

The 5s sails through the new iOS 7
Despite its inconsistency, Touch ID is our favorite part of the iPhone 5s. But our second favorite part? That would be iOS 7, with its fresh coat of "flat design" paint.
User interfaces are always one of the most subjective parts of a smartphone experience, but we like the new look and feel of iOS. It's simpler, it's more to-the-point, and it does away with the frou-frou skeumorphism (heavy reliance on shadows, reflections, and real-world objects) from the iOSes of old. iOS 7 makes sense as a 2013 mobile operating system.
There are, of course, other non-cosmetic upgrades in the new edition of iOS. Command Center is a long overdue improvement, finally putting Apple's software on par with Android and jailbroken iPhones by giving it a quick-access settings menu. Improved multitasking (you now get live card-based previews) and AirDrop file sharing round out some of the highlights.

Battery life

Same speaker grilles, same headphone port, same Lightning port
If a smartphone has terrible battery life, no other feature is going to matter. But the iPhone 5s gives you nothing to worry about there. It showed us solid uptimes, in the same ballpark as – though slightly better than – the iPhone 5.
We ran a test where we streamed videos continuously, with Wi-Fi and Bluetooth on, and brightness at 75 percent. In this somewhat-scientific test, the 5s chugged along for six hours and 15 minutes before conking out. That's the best showing we've seen from a smartphone since we started doing that particular test (and no, we haven't put Motorola's battery beast of a smartphone, the Droid Maxx, through that test).
During more typical use, we don't think you'll have anything to be concerned about. The iPhone 5s' battery should easily last a full day with lighter to moderate use.

Wrap-up

The back of the iPhone 5s
We can see the iPhone 5s from two opposing points of view. On one hand, you could easily argue that it's the best overall smartphone out there. It's constructed like a piece of jewelry, it might be the fastest phone in stores right now, and the fingerprint sensor is a breakthrough feature. The 5s delivers a streamlined, rock-solid, fool-proof experience.
On the other hand, you could argue that the iPhone is now the most conservative kid on the block. There's nothing risky about the 5s, and there's nothing that departs much from Apple's successful formula. When you're as profitable as Apple is, "more of the same" is probably a good thing. But the 5s also feels like a very safe update. The most solid phone out there? Could be. But the most exciting phone out there? Not likely.
Hold your finger on the home button for a brief moment, and your iPhone 5s will unlock
Which side of that fence you fall on will probably be determined by where you're coming from. If you own an iPhone 5, there's little reason to upgrade. Sure, Touch ID is a handy feature, but really, are you going to plunk down for a new phone just to have better and easier security? The camera is better, but not by such a longshot that it's a selling feature. The 5s is faster, but the iPhone 5 is still plenty zippy for most uses.
If you're coming from an older iPhone (4S or before), then this is going to be a much bigger upgrade. You get a bigger screen, a lighter and thinner build, and upgrades in just about every other area. If you're still on one of those older phones and you're comfortable in the iOS ecosystem, then, by all means, get the 5s. You won't regret it.
The iPhone 5s' box art shows off iOS 7's redesign
If you're coming from a high-end Android phone with a large screen, then the 5s gets a lot harder to recommend. After spending time with a spacious (4.7" to 5") display, switching to the iPhone's four-incher isn't easy. Its screen looks pretty piddly next to its high-end Android competition. Those big screens aren't for everyone, but neither are smaller screens like the iPhone's. You'll need to figure out where your sweet spot is.
So the iPhone 5s is either the best phone on the block, or the most predictable. Or both. Maybe it's like a Rorschach test or a work of abstract art, and your opinion about it says as much about you as it does the phone itself.
Either way, the iPhone 5s is one of the easiest phones of 2013 to recommend. It might have the least wrong with it of any smartphone out there. It isn't revolutionary, but it is the best iPhone yet. And for many, many customers, that will be enough.

Thứ Ba, 1 tháng 10, 2013

Samsung Galaxy Note 3 Review: Biggerer and Betterer

Samsung's Galaxy Note series has been the most popular BIG phone since it was first released a couple of years ago. The Galaxy Note 2 made some major improvements over the original in terms of speed and utility, and while the Galaxy Mega was a giant step backwards, the Galaxy Note 3 looks to leapfrog them both. And, generally, it does.

What Is It?

It's a big honkin' phone that runs Android 4.3 with Samsung's TouchWiz skin over the top. It has a 5.7-inch 1080p Super AMOLED display that comes in at 386 pixels per inch. It also has a built-in stylus (oops, sorry, "S Pen"), for all your jotting and scribbling.

Who's It For?

Big-handed people who never learned QWERTY. People who do a lot of reading on their phones. People who like to doodle.
Samsung Galaxy Note 3 Review: Biggerer and Betterer

Design

Ohmygod. Samsung made a phone without a cheap plastic back! The back of the Note 3 is covered in leather. Or, at least it looks and feels like leather (enough to fool a lot of people). Up front is the big, lovely screen surrounded by a very minimal bezel. It retains Samsung's clickable home button and capacitive keys for Back and Menu. The S Pen tucks neatly into the bottom of the phone and remains unobtrusive until you pull it out. There is one (easily muffled) speaker at the bottom of the phone. There's a bit of a bump in the back for the 13MP camera.
Samsung Galaxy Note 3 Review: Biggerer and Betterer

Using It

In general, the Note 3 is plenty fast. Apps open reasonably quickly, but then run very without a hitch. Why only reasonably quick to open? The grumpy gatekeeper. Samsung's TouchWiz software is a heavy burden to carry, and even the mighty quad-core Snapdragon 800 processor clocked at 2.3GHz and a hulking 3GB of RAM stumbles from time to time, which is pretty crazy. It's fast, but frankly, it should be faster.
Samsung has also borrowed a couple of ideas from its competitors here. My Magazine is essentially HTC's BlinkFeed, but worse. It's an app that tries to lay out your life in a visually appealing way, breaking it into categories like News, Personal, Social, and "Here and now" (local stuff). It looks nice enough, but it's barely functional most of the time. This app crashed over and over, often freezing and crashing other, completely unrelated apps.
The other thing the Note 3 borrows are the Moto X's Touchless Controls. It allows you to wake up your phone and have it do stuff for you without even laying a finger on it. Instead of saying, "Okay Google Now," you say, "Hi Galaxy!" Then, instead of Google Now opening, you get Samsung's S Voice app. This is unfortunate. While S Voice can do virtually everything Google Now can do in theory, it just doesn't work as well. It's clunky, unreliable, and not as smart as Now.

Samsung Galaxy Note 3 Review: Biggerer and Betterer

The Best Part

S Pen software has gotten much, much better. For starters, its handwriting-to-type engine is greatly improved. It's still not as fast or as accurate as a good touchscreen keyboard, but if you really like scribbling, this is pretty great. It can pull off some slick maneuvers. For example, if you scribbled a bunch of contact info into a note and you want to dial the phone number, you just circle it, click "Link to action" and it'll put it in the dialer (or a person's contacts, or your text messaging app). It's the kind of utility that the Note series has always promised, but it's finally arrived. Even little things like erasing text is easier. It's legitimately good stuff.

Tragic Flaw

Audio quality is universally bad on this phone, which is a shame because despite being tablet-ish, it's still supposed to be able to make phone calls. Callers had constant issues understanding me and vice versa. Using T-Mobile's Wi-Fi calling helped a bit, but not enough. The external speaker is bad, too. Aside from sounding muddy and totally unbalanced, its position at the bottom of the phone makes it extremely easy to muffle.
Samsung Galaxy Note 3 Review: Biggerer and Betterer

This Is Weird…

The back of this phone feels fantastic! That is something we have never, ever said about a Samsung phone, but it's true. The leathery-finish looks good, doesn't pick up fingerprints, and provides a really nice amount of traction for your fingers. It won't easily slide off your leg, either. It feels nice and strong, too, and yes, it's still removable so you can get to the battery and SD card slot. We hope Samsung continues in this direction with the Galaxy S5, though we suspect this may just be a play for the attention of business-folk who seem to gravitate toward the Note (it's big and shiny).
Samsung Galaxy Note 3 Review: Biggerer and Betterer
(Left-to-right: Galaxy Mega, Galaxy Note 3, Galaxy Note 2, Galaxy S4)

Test Notes

  • Until we all have the same-sized hands, the debate about whether a phone is or isn't too big will never end. It's subjective. That said, to me this phone is too big. I have large hands, but I struggle to use the Note 3 one-handed, something that's a must for me. Your phone-handling preferences may vary.
  • The 3200mAh battery holds up admirably, but all those pixels take a toll. More often than not, I made it until about 8pm before I needed to reach for a charger. With heavier use it was shorter, and with lighter use I made it well into the night. It's unquestionably not as long-lasting as the Droid Maxx, but then again, not much is.
  • It's presently one of two devices that works with Samsung's Galaxy Gear smartwatch, and the only phone.
  • The 13MP camera is excellent, especially in sunlight. Photos and videos were sharp, had nice color, and decent depth-of-field. You can see some samples here.
Samsung Galaxy Note 3 Review: Biggerer and Betterer
  • TouchWiz has been refined somewhat in this implementation, but it still bogs down the phone. The Google Edition of the Galaxy S4 (which has stock Android instead of TouchWiz) instantly became one of our favorite ever phones. The presence of the S Pen makes us think we'll never see a Google edition of the Note 3, however.
  • Despite the fact that Samsung licenses software from SwiftKey (our favorite third-party keyboard) the built-in keyboard is way worse. Text predictions are all over the place and words get broken into fragments a lot.
  • The screen is really lovely, especially for viewing photos. It has those perfect blacks we love so much on AMOLED screens, and it's nice and sharp.

Should I Buy It?

Do you like really big phones? Then yes! This is the best big phone out there. Do you hate big phones? Then no, of course you shouldn't get it because you will drop it on the ground and cry. That's pretty much the long and short of it, at least for now. Oh, except for the price.
Depending on the carrier, this puppy will run you $300 to $350 on contract. That's pretty damn steep. But if you've got the coin, you like this size, and you can get over the software annoyances, this is probably the phone you want. Ignore the gravitational pull of the Galaxy Mega. Size aside, this is three times the phone that is.
We still long to see Samsung get it together on the software side. As it is, the software on the Note tends to get in its own way, which has long been a Samsung tradition. Less is more, Samsung, even on a phone this big. [Samsung]

Samsung Galaxy Note 3 Specs

• Network: Most major U.S. carriers
• OS: Android 4.3 with TouchWiz
• CPU: 2.3 GHz quad-core Snapdragon 800
• Screen: 5.7-inch 1920x1080 Super AMOLED (386 PPI)
• RAM: 3GB
• Storage: 32GB or 64GB plus micro SD up to 64GB
• Camera: 13MP rear ("UltraPixel")/ 2.MP front
• Battery: 3200 mAh Li-Ion
• Price: $300 - $350 (with a two-year contract, generally)