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UIButton inside a view that has a UITapGestureRecognizer
...strure
UITapGestureRecognizer *tapGestRecog = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(screenTappedOnce)];
[tapGestRecog setNumberOfTapsRequired:1];
[self.view addGestureRecognizer:tapGestRecog];
// This line is very important. if You don't add it then your ...
Most efficient way to cast List to List
...java programmers would not think twice before implementing getAllFoos() as allocating a new ArrayList<Foo>, populating it with all the elements from zorkingFoos and returning it. I enjoy entertaining the thought that about 30% of all clock cycles consumed by java code running on millions of m...
Android: Scale a Drawable or background image?
...want to scale the background image (keeping its aspect ratio) to the space allocated when the page gets created. Does anyone have an idea how to do this?
...
Correct way to detach from a container without stopping it
...t comes down to the following when the container was launched:
was a TTY allocated (-t)
was stdin left open (-i)
^P^Q does work, BUT only when -t and -i is used to launch the container:
[berto@g6]$ docker run -ti -d --name test python:3.6 /bin/bash -c 'while [ 1 ]; do sleep 30; done;'
b26e39632...
Most common C# bitwise operations on enums
... all by the way.
HasFlag is rather slow as it requires boxing which causes allocations and thus more garbage collections.
Due in part to .NET's limited support for flag enums I wrote the OSS library Enums.NET which addresses each of these issues and makes dealing with flag enums much easier.
Belo...
“unrecognized selector sent to instance” error in Objective-C
... you're not memory managing the view controller properly and it is being deallocated at some point - which causes the numberButtonClicked: method to be sent to another object that is now occupying the memory that the view controller was previously occupying...
Make sure you're properly retaining/re...
ASP.NET: Session.SessionID changes between requests
... is the reason
When using cookie-based session state, ASP.NET does not allocate storage for session data until the Session object is used. As a result, a new session ID is generated for each page request until the session object is accessed. If your application requires a static session ID for t...
How to jump to a particular line in a huge text file?
...ng a lot of pages faults :) On the contrary, doing it the "stupid way" and allocating lots and lots of memory can be blazingly fast. I enjoyed the danish FreeBSD developer Poul-Henning Kamp's article on it: queue.acm.org/detail.cfm?id=1814327
– Morten Jensen
Ju...
WKWebView in Interface Builder
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It's not a good suggestion to allocate a new view in the initializer for WebView. crx_au's response is superior
– Ilias Karim
Mar 28 '17 at 18:02
...
Convert objective-c typedef to its string equivalent
...EnumToString:(kImageType)enumVal
{
NSArray *imageTypeArray = [[NSArray alloc] initWithObjects:kImageTypeArray];
return [imageTypeArray objectAtIndex:enumVal];
}
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