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Why create “Implicitly Unwrapped Optionals”, since that implies you know there's a value?
...in a view controller:
class MyViewController: UIViewController {
var screenSize: CGSize?
override func viewDidLoad {
super.viewDidLoad()
screenSize = view.frame.size
}
@IBAction printSize(sender: UIButton) {
println("Screen size: \(screenSize!)")
}
}
...
What is a stream?
...when we open a file on our computer its entire contents is splashed on our screen for us to read. But how? Very methodically is the answer. The content of the file itself is another data structure. Suppose an array of characters. We can also think of this as a string.
So how do we 'read' this stri...
Disadvantages of Test Driven Development? [closed]
...ome just like seeing convoluted methods/functions bleed off the end of the screen. TDD isn't for everyone, but I really wish it were. It would make maintaining stuff so much easier for those poor souls who inherit code.
Maintaining the test code along with your production code
Ideally, your te...
How much does it cost to develop an iPhone application? [closed]
...design costs lots of money. Expect several designer weeks of work per app screen. Offshore teams do not do design.
Server development and infrastructure is critical if the app is to succeed. A slow server response, or an overloaded server will hamper your app, and crimp sales and satisfaction. Th...
Biggest advantage to using ASP.Net MVC vs web forms
...you to just toss controls in your page just to see someting moving on your screen, and then you spend more time tweaking it, if not removing it at all.
– Thanasis Ioannidis
Jan 3 '13 at 0:05
...
User Authentication in ASP.NET Web API
...o find a clear example of how to authenticate an user right from the login screen down to using the Authorize attribute over my ApiController methods after several hours of Googling.
That's because you are getting confused about these two concepts:
Authentication is the mechanism whereby systems...
CMake link to external library
...about it, and as such you will not get GameKit enabled in the Capabilities screen.
One way to use CMake and have a "Link with Binaries"-buildstep is to generate the xcodeproj with CMake, and then use 'sed' to 'search & replace' and add the GameKit in the way XCode likes it...
The script looks...
App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎...
...fixed; top:40%; left:5px; width:200px; height:500px; display: none;}@media screen and (max-width: 700px) { #free_v { top:200%; }}
How to play a local video with Swift?
...er in another way, that open for u full customization of your video Player screen
Swift 2.3
Create UIView subclass for playing video (basically u can use any UIView object and only needed is AVPlayerLayer. I setup in this way because it much clearer for me)
import AVFoundation
import UIKit
clas...
List of ANSI color escape sequences
...3[<N>D Move the cursor backward N columns"
print "\\033[2J Clear the screen, move to (0,0)"
print "\\033[K Erase to end of line"
print "\\033[s Save cursor position"
print "\\033[u Restore cursor position"
print " "
print "\\033[4m Underline on"
print "\\033[24m Underline off"
print "\\033[1m...