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How did Google manage to do this? Slide ActionBar in Android application
I really want to implement this (the side navigation) in an app of my own, does anyone know how Google managed to do this?
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Get top n records for each group of grouped results
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Here is one way to do this, using UNION ALL (See SQL Fiddle with Demo). This works with two groups, if you have more than two groups, then you would need to specify the group number and add queries for each group:
(
select *
from mytable
where `group` = 1
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How to define optional methods in Swift protocol?
...an take advantage of powerful generics system.
You can always be sure that all requirements are met when encountering types that conform to such protocol. It's always either concrete implementation or default one. This is how "interfaces" or "contracts" behave in other languages.
Disadvantages
F...
sh: 0: getcwd() failed: No such file or directory on cited drive
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This error is usually caused by running a command from a directory that no longer exist.
Try changing your directory and re-run the command.
share
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Runnable with a parameter?
...ble that accepts a parameter" although I know that such runnable doesn't really exist.
7 Answers
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Parse v. TryParse
...l indicating whether it succeeded.
TryParse does not just try/catch internally - the whole point of it is that it is implemented without exceptions so that it is fast. In fact the way it is most likely implemented is that internally the Parse method will call TryParse and then throw an exception if...
What does default(object); do in C#?
... value
For Nullable<T> it returns the empty (pseudo-null) value (actually, this is a re-statement of the first bullet, but it is worth making it explicit)
The biggest use of default(T) is in generics, and things like the Try... pattern:
bool TryGetValue(out T value) {
if(NoDataIsAvailab...
Unwanted padding around an ImageView
I need to include a header graphic in all of my activities/views. The file with the header is called header.xml:
8 Answers
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How to explain Katana and OWIN in simple words and uses?
...servers and web applications should be built in order to decouple them and allow movement of ASP.NET applications to environments which were not supported before.
Prior to OWIN, when building ASP.NET application, you were inherently bound to IIS due to the heavy dependency on System.Web assembly.
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Change navbar color in Twitter Bootstrap
...lor: $colHighlight;
background-color: $bgHighlight; }}}
}
And finally, a little gift
I've just made a script which will allow you to generate your theme:
TWBSColor - Generate your own Bootstrap navbar
[Update]: TWBSColor now generates SCSS/SASS/Less/CSS code.
[Update]: From now, you can...