How to Previewing documents on Iphone
Just like on the Macintosh, the iPhone SDK contains a technology known as Quick Look for previewing documents. By using a CLP review Controller object, you can easily view multiple documents of several formats, including Microsoft Office, Apple work, PDF, rich text, images, and more. Next you’ll see how, with just a couple of lines of code, you can create a simple PDF viewer, complete with paging and touch enabled resizing. This example can, of course, be extended to work with any of the document types supported by Quick Look. In this example, you’ll view the iPhone Users Guide, which can be downloaded from Apple at http://manuals.info.apple. com/en/iphone_user_guide.pdf.
To create a PDF viewer:
1. Create a new view-based application, saving it as Quick Look Example.
2. Drag the iPhone Users Guide PDF into the Resources section in the Groups & Files pane. Make sure that the “copy items into destination group’s folder (if needed)” check box is selected F.
3. In the Groups & Files pane, expand the Targets section, right-click your application target, and select Get Info.
4. Making sure the General tab is selected, click Add (+) at the bottom of the Linked Libraries list, and add the
Quick Look framework G.
5. Open Quick Look Example View Controller .h, include the Quick Look.h header, add the protocol QLP review Controller Data Source, and create an instance variable to hold your Quick Look view controller (Code Listing 6.4).
6. Next, switch to Quick Look Example View Controller .m, uncomment the view Did Load method, and add the following code: live Controller = [[QLP review Controller allot] init]; ql View Controller. Data Source = self; [self create]; Here you are simply creating a Quick Look preview controller and setting its data source. You also call the create method, which adds the button that will be used to show the Quick Look preview controller.
7. Next, create the show Preview method: [self present Modal View Controller: ql View Controller animated: YES]; which simply shows the Quick Look preview controller on the screen.
8. Now you need to implement the two QLP review Controller Data Source data source methods so that the Quick Look preview controller knows what to display. First you implement the number Of Preview Items in Preview Controller: method. In this example, since we have only a single PDF file,
You simply return the number 1. Return 1; you then implement the preview Controller: preview Item at Index:
Method: Nesting *document Location = [[Unbundle main Bundle] path For Resource:@”iphone_user_guide” ofType:@”pdf”];NSURL *myQL Document = [NSURL file URL with Path: document Location]; return myQLDocument; Here you retrieve the path of your PDF and use it to create and return an NSURL object.
Code Listing 6.5 shows the completed code.
9. Build and run the application tapping the Show Preview button causes the Quick Look preview controller
to load . You can navigate through the pages of the PDF by flicking your finger up and down on the screen. Note how your current page is displayed in the top-right corner and the document name is displayed in the title bar H. By pinching or double-tapping the screen, you should be able to zoom in to read the document in greater detail. For more information on Quick Look, refer to the Quick Look Framework Reference in the developer documentation.
BIO:
Sussan Deyhim is from Electrician Durham and a University Lecturer. She loves to write on technical topics like Electrician Chapel Hill. She is writing from last three years
Comcast and TWC will negotiate with officials to save their merger
The merger between Comcast and Time Warner Cable is no longer as certain to get approval as it once was, and the two cable giants know it. Wall Street Journal sources understand that the companies will meet with Department of Justice officials this week (the first time they’ve met since the announcement) in hopes of negotiating concessions and saving the deal. It’s not clear what more they’ll propose beyond existing offers, although history suggests that they could give up more customers or promise more efforts to expand low-cost internet access.
However, Comcast reportedly won’t budge on one area: net neutrality. If the Justice Department asks Comcast to abide by the FCC’s utility-like net neutrality rules whether or not they survive legal challenges, the company might just “walk away” from the merger. That’s not surprising given the telecom’s less-than-kind attitude toward Netflix, but it also suggests that Comcast will only go so far to please regulators when it sits down for talks.
Filed under: Home Entertainment, Internet, HD
Source: Wall Street Journal
Google Wallet balances to get FDIC protection
If you use Google Wallet and keep a balance of funds available in your account, Google is taking steps to help make things a little bit safer for you. Google is now moving funds stored in Google Wallet accounts into FDIC-insured bank accounts. Hopefully this extra insurance would never be something users have to take advantage of, but if they do they now have insurance up to $250,000 on the funds on deposit.
Normally users would not keep a balance in Google Wallet, using the service merely as a pass-through mechanisms. This is similar to how other services like PayPal operate. However, it is possible for users to end up with balances in their account. Sometimes this may be intentional as the user wants funds to be available in the account. Other times it may be because the user has assumed funds would be moved automatically.
Google Wallet competitors like PayPal and Venmo currently do not offer to put user funds in FDIC-insured institutions. However, PayPal does offer zero liability protection against fraud which would cover most typical situations where a user’s funds might be at risk.
Does the addition of this extra layer of protection make you more likely to use Google Wallet?
source: Yahoo! Finance
Come comment on this article: Google Wallet balances to get FDIC protection
Google releases new Project Loon update video
Google’s Project Loon continues development from an audacious goal to use balloons to provide Internet service to areas traditionally un- or under-served to being a reality that provides service to 2 out of 3 Internet users. In their latest video about Project Loon, the Google team talks about how they have been working to ramp up their capabilities for a mass deployment.
Some of the challenges discussed in the video include things like the manufacture and launch of the balloons. When the project first start, producing a working balloon was a long process that frequently involved hunts for leaks. Now, the company is able to produce a functional balloon in a matter of hours. Likewise, Project Loon has improved the launch schedule from one balloon per day to a dozen.
You can check out the full video below on the status of Project Loon.
Click here to view the embedded video.
source: +Project Loon
Come comment on this article: Google releases new Project Loon update video
Sony’s super-thin 4K TV arrives this summer
A year after Sony’s 4K TV launch, the company is detailing the US launch of a revamped collection with HDR-compatible sets. You can now pre-order six models in Sony’s new Ultra HD lineup, with deliveries arriving in May. The line starts off with a 43-inch TV that costs $1,299.99, and goes up to a 75-inch behemoth at $7,999.99. Sony isn’t talking about pricing for the X900C, reportedly the thinnest LED TV in the world, but it’s poised to arrive this summer. It could be worth the wait — at 5.08mm, it’s thinner than your smartphone (unless you’re using Oppo’s 4.8mm R5). It also has a “Vanishing Edge” technology that makes the picture fill the entire screen.
In addition to their Triluminos technology, the TVs are equipped with a color correction feature that can make hues more vibrant or tone them down a notch for a more realistic visual experience. And as promised at CES earlier this year, the latest models are paired with Android TV. There’s a voice search feature so you can speak into a one-click remote or a compatible smartphone for quick access to your favorite app. Soon, gamers will also have access to Playstation Now and a DualShock 4 controller.
While the thinnest options won’t be available for a few months, you can be prepared for the onslaught of improved video with the X930C or X940C series, which will become HDR-friendly through a network update this summer.
Filed under: Home Entertainment, HD, Sony
Source: Sony (PR Newswire)
Your Google Wallet funds are now insured
The money in your bank account is typically covered by federal insurance, but your internet payment services typically aren’t. If PayPal or Venmo went belly-up, you’d probably lose your existing balance. That won’t be a problem if you’re using Google Wallet, though. Google is now holding your Wallet funds in banks with FDIC insurance, so your digital credit is now that much safer. This isn’t to say that rivals leave you completely vulnerable — PayPal has fraud protection, for instance. However, the Wallet move means that you won’t have to go to court to get your cash back if Google goes bankrupt, no matter how unlikely that is.
Filed under: Cellphones, Internet, Mobile, Google
Source: Yahoo Finance
Inhabitat’s Week in Green: cheaper EVs, synthetic leaves and clay-pot speakers
Each week our friends at Inhabitat recap the week’s most interesting green developments and clean tech news for us — it’s the Week in Green.
For more than three years, the Western United States — especially California — has been gripped by the worst drought on record. With no end in sight, San Diego County announced plans to build a massive $1 billion desalination plant. The plant will produce drinking water for 300,000 people in Southern California, but opponents have raised concerns about its high energy use, and that it will likely harm marine life. Researchers also discovered what may be causing the drought — a massive “blob” of warm water in the Pacific Ocean measuring a thousand miles wide is wreaking havoc on weather patterns and local marine life.
A couple months ago, IKEA announced plans to roll out a new line of lamps that would wirelessly charge your mobile devices. Now, it looks like the furniture giant is ready to start introducing the new lamps later this spring. In other energy news, Vancouver just became the latest city to switch to 100 percent renewable energy. The Canadian city now joins a list of more than 50 cities around the world that have pledged to abandon fossil fuels. Switching to renewables doesn’t just make sense for the environment — it’s good business sense. For example, offshore wind is already cheaper than both gas and nuclear power. In certain parts of the world, the technology is already financially viable and no longer needs government subsidies. New innovations are also finding energy sources in unexpected places. Engineers from Columbia University’s Computer Vision Laboratory have created what they claim to be the world’s first fully self-powered camera. The video camera converts light captured when creating an image into electrical power. On the green transportation front, Tesla is making headway on selling its vehicles in Maryland, and Chevy announced that it will be slashing the price of the 2015 Chevy Spark EV. After tax credits, the car will cost just $14,995 in some states.
Milan Design Week is like the Olympics for the design world. All the big names are there, and it’s also an opportunity for up-and-comers to show their work. This year’s event has featured scores of innovative new products that promise to change the way we interact with everyday objects. Japanese designer Kosho Ueshima unveiled a nanotech toothbrush that can clean your teeth without toothpaste. If you ever wanted to reach outer space without suiting up and hopping in a rocket, Nooka has produced a device that enables you to record a private message and send it into outer space. The event is more than just an assortment of quirky one-off designs; it’s also a forum for bold ideas. Dutch designer Daan Roosegaarde proposed building a massive electric vacuum cleaner that could combat air pollution in cities like Beijing. Some of the other highlights from Design Week included the Salone Satellite show — an opportunity for young, emerging designers to show their wares. Japanese design studio Kappes used a collection of wires placed inside a terrarium to create a dazzling, ethereal work of art. And Mapu Guaquén combined traditional clay pots with modern speakers to create wireless speakers with a soft, raw look. Meanwhile, at the Ventura Lambrate exhibit, Julian Melchiorri created a synthetic biological leaf that can absorb water and carbon dioxide and produce oxygen like a plant. And United Nude teamed up with 3D systems to launch a line of sculptural 3D-printed shoes at Milan Design Week that combine art, design and technology to test the boundaries of fashion.
Filed under: Cameras, Household, Transportation, Science
Bad software update kills many Wink smart home hubs
Now for the downside of a house loaded up with “smart” devices to allow remote control and monitoring: turning your home into a computer means computer-like problems. Today’s example comes from the Wink Hub, a $50 device sold at Home Depot that’s supposed to simplify things by working across standards and link common home appliances (lights, thermostat, garage door, etc.) to your phone. That was the plan until yesterday when Wink sent out a software update that went wrong somehow, and now a number of users have a box “so secure that it is unable to connect to the Wink servers” (Wink’s words, not ours). The problem knocked all Wink hubs offline from 12:40PM to 11PM ET yesterday, and while the company says a “majority” of hubs were able to recover and reconnect, those that weren’t will need to be sent back.
[Thanks Larry, Steve & John]
For its part, Wink has sent an email out to affected owners asking them to return their hubs and wait for a replacement, and is offering a $50 off Wink store voucher for the trouble. It initially sent out a coupon code, but disabled that one and promises individual codes for owners within 24 hours of submitting a return form (owners should call 844-WINK-APP for service). Unfortunately, as Wink user Chris Sewell posted on Google+, now affected owners are left questioning if they should stick with the company at all or switch to another (hopefully more reliable) platform — despite the many cool aspects of smart home setups.
All the things many owners won’t be doing with a Wink hub right now
We’ve contacted the company for more information but have not heard back yet, although for now its status page has some info on what happened. By its reckoning, the problem was due to a security feature it implemented in the “the early days” and was a misconfiguration that was completely avoidable. It’s pulling all Wink devices from store shelves for now, saying that local stores will not have inventory “for some time.” Apparently turning into a spy and an addict isn’t the worst thing that can happen with a smart home.
Hey Wink users! We’re doing a bit of work on our end so if you see any devices offline we’ll get you back up and running shortly
– Wink (@TheWinkApp) April 18, 2015
You can see where things went wrong in real time via Twitter
We are aware of a disruption in Wink service & connectivity. Team is working to resolve. Status can be monitored at http://t.co/WPpNKlhbQv
– Wink (@TheWinkApp) April 18, 2015
See a blue light on your hub? Do NOT unplug/restart your hub. The issues are on our end. We’ll keep in loop http://t.co/WPpNKlhbQv
– Wink (@TheWinkApp) April 18, 2015
Uh-oh
We’ve experienced a massive outage of Wink Hubs. We recovered most, but some will require a repair. Read more at http://t.co/WPpNKlhbQv
– Wink (@TheWinkApp) April 19, 2015
Filed under: Household
Source: Wink
Hitchbot’s poetry-writing sibling will also make its way across Canada
While Hitchbot was bumming rides across Canada and Germany, its sibling kulturBot remained at home to keep their “parents” company. Now kulturBot is going on an adventure of its own, traveling with musicians, poets and other artistic types aboard the Great Canadian PoeTrain Tour. See, it might be made out of a pasta strainer and a vacuum, but it will fit right in with the other passengers — after all, the little machine is a wordsmith itself. Its creators, Dr. David Harris and Dr. Frauke Zeller, designed kulturBot to write poetry using words and phrases taken from the diaries of Canadian geographer and fur trader David Thompson.
The robot’s lights flash whenever it’s done composing a new poem, and a thermal printer embedded in its body spits a printed copy out. Many of its pieces reportedly make as much sense as a drunk, stuttering newbie at a Friday night poetry slam, but Harris believes they’re still “strangely beautiful.” Here’s an example the developers gave to The Toronto Star (formatting ours):
men had worn
by our oldest hunter
only six hundred miles
of Great Britain and Women.
Feel free to formulate your own interpretation.
The machine going on an eight-day journey from Toronto to Vancouver is actually the third generation, with earlier iterations visiting museums and galleries instead. As Hitchbot wrote on its website: “Though I am clearly more handsome than my sibling, my kulturBot does have a few more years of experience.” Robopoet version 3.0’s journey will last from April 18th to 26th, during which it’ll be posting photos and snippets of its new masterpieces on Facebook and Twitter.
[Image credit: kulturBot/Facebook]
Filed under: Robots
Source: The Toronto Star, Hitchbot, Frauke Zeller
Russians are using undiscovered exploits to hack the US government
If you’ve been wondering how Russian cyberattackers could compromise the White House and other high-profile targets, the security researchers at FireEye have an answer. They’ve determined that APT28, a politically-motivated Russian hacking group, used unpatched exploits in Flash Player and Windows in a series of assaults against the US government on April 13th. Patches for both flaws are either ready or on the way, but the vulnerabilities reinforce beliefs that APT28 is very skilled — less experienced groups would use off-the-shelf code.
Whether or not APT28 is linked to the earlier White House breach isn’t apparent. FireEye says it can’t comment on the connections, since that’s classified information. If there is a link, though, it’ll be clearer than ever that the US is up against a particularly fierce digital espionage campaign.
[Image credit: Saul Loeb/AFP/Getty Images]
Filed under: Internet, Microsoft
Via: Reuters
Source: FireEye
AIVAnet 