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Is it possible to determine whether ViewController is presented as Modal?
...ngViewController
The view controller that presented this view controller. (read-only)
@property(nonatomic, readonly) UIViewController *presentingViewController
Discussion
If the view controller that received this message is presented by another view controller, this property holds the view contr...
How do I search an SQL Server database for a string?
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It's a great must-have tool for any DBA or database developer - did I already mention it's absolutely free to use for any kind of use??
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follo...
When does System.gc() do something?
...m.gc() via the java argument -XX:+DisableExplicitGC.
I'd highly recommend reading through the documents available at Java HotSpot Garbage Collection for more in depth details about garbage collection.
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What is the difference between . (dot) and $ (dollar sign)?
...anything that comes before.
For example, let's say you've got a line that reads:
putStrLn (show (1 + 1))
If you want to get rid of those parentheses, any of the following lines would also do the same thing:
putStrLn (show $ 1 + 1)
putStrLn $ show (1 + 1)
putStrLn $ show $ 1 + 1
The primary pu...
Schema for a multilanguage database
...PostGre hstore, except that due to the overhead of parsing XML (instead of reading an entry from an associative array in PG hstore) it becomes far too slow plus the xml encoding makes it too painful to be useful.
Method 5 (as recommended by SunWuKung, the one you should choose):
One translation ta...
Import package.* vs import package.SpecificType [duplicate]
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I was going to post a link to your article (which I read yesterday), but I thought you'd probably like to do it yourself. :)
– Michael Myers♦
Oct 9 '08 at 18:52
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C# 4.0 optional out/ref arguments
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As already mentioned, this is simply not allowed and I think it makes a very good sense.
However, to add some more details, here is a quote from the C# 4.0 Specification, section 21.1:
Formal parameters of constructors, method...
How to print to console when using Qt
...bug() etc actually do, this will be by far the superior answer (IMO it's already superior since OP is asking for something to replace std::cout, but 40ish voters appear not to agree).
– Kyle Strand
Mar 9 '15 at 21:00
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How to implement the Android ActionBar back button?
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Selvin already posted the right answer. Here, the solution in pretty code:
public class ServicesViewActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstan...
How can I measure the similarity between two images? [closed]
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Use a normalised colour histogram. (Read the section on applications here), they are commonly used in image retrieval/matching systems and are a standard way of matching images that is very reliable, relatively fast and very easy to implement.
Essentially a co...