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iPhone - Grand Central Dispatch main thread
...om.mycompany.myqueue", 0);
dispatch_async(backgroundQueue, ^{
int result = <some really long calculation that takes seconds to complete>;
dispatch_async(dispatch_get_main_queue(), ^{
[self updateMyUIWithResult:result];
});
});
}
In this case,...
Which Boost features overlap with C++11?
...
Smart Ptr → std::unique_ptr, std::shared_ptr, std::weak_ptr (but boost::intrusive_ptr still cannot be replaced)
Swap (swapping arrays) → std::swap
Tuple → std::tuple
Type Traits → <type_traits>
Unordered → <unordered_set>, <unordered_map>
Features back-ported from C++1...
What is Dependency Injection and Inversion of Control in Spring Framework?
...will first create the Address object (dependent object) and then inject it into the Employee object.
Inversion of Control (IoC) and Dependency Injection (DI) are used interchangeably. IoC is achieved through DI. DI is the process of providing the dependencies and IoC is the end result of DI. (Note...
Understand the “Decorator Pattern” with a real world example
...ur basic pizzas and 8 different toppings, the application would go crazy maintaining all these concrete combination of pizzas and toppings.
Here comes the decorator pattern.
As per the decorator pattern, you will implement toppings as decorators and pizzas will be decorated by those toppings' deco...
Why .NET String is immutable? [duplicate]
...ing is immutable. What are the reasons for String being immutable and the introduction of StringBuilder class as mutable?
...
How to use single storyboard uiviewcontroller for multiple subclass
... create additional storyboards. Say these views will have exactly the same interface but with root view controller of class SpecificViewController1 and SpecificViewController2 which are subclasses of BasicViewController .
Those 2 view controllers would have the same functionality and interfac...
Array or List in Java. Which is faster?
...ons of Java. I am working on a problem at the moment where someone used an int throughout for a key in a map (to save space/time). We now need to change all lines to a new object - its painful.
– Fortyrunner
Apr 4 '09 at 19:30
...
Fast way of counting non-zero bits in positive integer
I need a fast way to count the number of bits in an integer in python.
My current solution is
9 Answers
...
Android - shadow on text?
...r setTextAppearance is
public void setTextAppearance (Context context, int resid)
Since: API Level 1
Sets the text color, size, style, hint color, and
highlight color from the specified TextAppearance resource.
...
Is there a generator version of `string.split()` in Python?
...
Excellent! I had forgotten about finditer. If one were interested in doing something like splitlines, I would suggest using this RE: '(.*\n|.+$)' str.splitlines chops off the trainling newline though (something that I don't really like...); if you wanted to replicated that part o...