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“From View Controller” disappears using UIViewControllerContextTransitioning
...r *)viewControllerForKey:(NSString *)key;
So instead of adjusting frames etc of toViewController.view, use the return value of [transitionContext viewForKey:UITransitionContextToViewKey].
If your app needs to support iOS7 and/or Xcode 5, then you can use a simple category method on UIViewControll...
How to align checkboxes and their labels consistently cross-browsers
...
Sometimes vertical-align needs two inline (span, label, input, etc...) elements next to each other to work properly. The following checkboxes are properly vertically centered in IE, Safari, FF, and Chrome, even if the text size is very small or large.
They all float next to each other o...
How to implement the factory method pattern in C++ correctly
...dwich spam();
// Move constructor.
sandwich(sandwich &&);
// etc.
};
Then you can construct objects on the stack:
sandwich mine{sandwich::ham()};
As subobjects of other things:
auto lunch = std::make_pair(sandwich::spam(), apple{});
Or dynamically allocated:
auto ptr = std::ma...
“Insufficient Storage Available” even there is lot of free space in device memory
... things you will only cause issues down the road.. lagg, error
messages, etc. (because you are fooling the OS in thinking you have
given it additional memory which in fact you did.. you only force
closed).
Another good explanation of what is happening is in forum post Low Internal Memory.
T...
What is a semaphore?
...is, a mutex can be used to syncronize access to a counter, file, database, etc.
A sempahore can do the same thing but supports a fixed number of simultaneous callers. For example, I can wrap my database calls in a semaphore(3) so that my multithreaded app will hit the database with at most 3 simult...
What's the difference between hard and soft floating point numbers?
...s in integer registers. You can still compile your code with a -mfpu=vfp, etc but you should use -mfloat-abi=softfp so that if the libc needs a float it is passed in a way the library understands.
The Linux kernel can support emulation of the VFP instructions. Obviously, you are better off to com...
@RequestBody and @ResponseBody annotations in Spring
...rated. Both things will be mapped easily without writing any custom parser etc.
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How to debug Ruby scripts [closed]
... pry 0.12.2 however, there are no navigation commands such as next, break, etc. Some other gems additionally provide this, see for example pry-byedebug.
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TCP vs UDP on video stream
...er used in satellite video broadcast that carry several audio, video, EPG, etc. streams. This is necessary as satellite link is not duplex communication, meaning receiver can't request re-transmission of lost packets.
When you have duplex communication available it is always better to re-transmit ...
How can I use Spring Security without sessions?
...ntainer will append ";jsessionid=..." to requests for images, stylesheets, etc, because Tomcat doesn't like to be stateless, and Spring Security will then block these assets on the first load because "the URL contained a potentially malicious String ';'".
– workerjoe
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