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How to toggle a value in Python
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>>> x ^= 1
>>> x
1
The technique generalizes to any pair of integers. The xor-by-one step is replaced with a xor-by-precomputed-constant:
>>> A = 205
>>> B = -117
>>> t = A ^ B # precomputed toggle constant
>>> x = A
>>> x ^...
iphone ios running in separate thread
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In my opinion, the best way is with libdispatch, aka Grand Central Dispatch (GCD). It limits you to iOS 4 and greater, but it's just so simple and easy to use. The code to do some processing on a background thread and then do something...
Bold & Non-Bold Text In A Single UILabel?
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Update
In Swift we don't have to deal with iOS5 old stuff besides syntax is shorter so everything becomes really simple:
Swift 5
func attributedString(from string: String, nonBoldRange: NSRange?) -> NSAttributedString {
let fontSize = UIFont.systemFontSize
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Is it possible to create a File object from InputStream
Is there any way to create a java.io.File object from an java.io.InputStream ?
7 Answers
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foreach vs someList.ForEach(){}
There are apparently many ways to iterate over a collection. Curious if there are any differences, or why you'd use one way over the other.
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How do I get currency exchange rates via an API such as Google Finance? [closed]
...I and started looking through that but I found a lot of info about portfolios, transactions, positions & other stuff I know nothing about.
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Retrieve version from maven pom.xml in code
What is the simplest way to retrieve version number from maven's pom.xml in code, i.e., programatically?
11 Answers
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How do I inspect the view hierarchy in iOS?
Is there a GUI tool that inspects the view hierarchy of an iOS app? I'm thinking about Webkit's web inspector or similar tools. I'm looking to debug layout issues, like views having the wrong position or size, or a child not being properly contained in its parent. Currently I have to add asserts tha...
Adding images or videos to iPhone Simulator
...thod, read on.
Note - while this is valid, and works, I think Koen's solution below is now a better one, since it does not require rebooting the simulator.
Identify your simulator by going to xCode->Devices, selecting your simulator, and checking the Identifier value.
Go to
~/Library/Develop...
How to use NSURLConnection to connect with SSL for an untrusted cert?
...ed API for accomplishing this! Add something like this to your NSURLConnection delegate:
- (BOOL)connection:(NSURLConnection *)connection canAuthenticateAgainstProtectionSpace:(NSURLProtectionSpace *)protectionSpace {
return [protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticatio...