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How to add line break for UILabel?
...ize:lineBreakMode:
Reference, Replacement for deprecated sizeWithFont: in iOS 7?
CGSize labelSize = [label.text sizeWithAttributes:@{NSFontAttributeName:label.font}];
label.frame = CGRectMake(
label.frame.origin.x, label.frame.origin.y,
label.frame.size.width, labelSize.height);
...
Is String.Format as efficient as StringBuilder
...lly:
public static string Format(IFormatProvider provider, string format, params object[] args)
{
if ((format == null) || (args == null))
{
throw new ArgumentNullException((format == null) ? "format" : "args");
}
StringBuilder builder = new StringBuilder(format.Length + (ar...
How do I use shell variables in an awk script?
... v1.5
Using -v (The best way, most portable)
Use the -v option: (P.S. use a space after -v or it will be less portable. E.g., awk -v var= not awk -vvar=)
variable="line one\nline two"
awk -v var="$variable" 'BEGIN {print var}'
line one
line two
This should be compatible with most a...
How to send an email from JavaScript
...ail client:
window.open('mailto:test@example.com');
There are also some parameters to pre-fill the subject and the body:
window.open('mailto:test@example.com?subject=subject&body=body');
Another solution would be to do an ajax call to your server, so that the server sends the email. Be c...
How to hide the “back” button in UINavigationController?
Do you know how to hide the 'back' button in a UINavigationController?
Also, how to show it back, but I guess that's very similar to hiding it...
...
How do I get the day of the week with Foundation?
...
outputs current day of week as a string in locale dependent on current regional settings.
To get just a week day number you must use NSCalendar class:
NSCalendar *gregorian = [[[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar] autorelease];
NSDateComponents *comps = [gregorian co...
Is AsyncTask really conceptually flawed or am I just missing something?
...truly want parallel execution, you can use the executeOnExecutor(Executor, Params...) version of this method with THREAD_POOL_EXECUTOR; however, see commentary there for warnings on its use.
Both executeOnExecutor() and THREAD_POOL_EXECUTOR are Added in API level 11 (Android 3.0.x, HONEYCOMB).
T...
Why is early return slower than else?
...ng without_else() and the difference disappears:
>>> def no_else(param=False):
if param:
return 1
return 0
>>> T(lambda : no_else()).repeat()
[0.3359846013948413, 0.29025818923918223, 0.2921801513879245]
>>> T(lambda : no_else(True)).repeat()
[0.381039559...
How can I get a precise time, for example in milliseconds in Objective-C?
...meInterval is in seconds, but it uses the double to give you greater precision.
In order to calculate millisecond time accuracy, you can do:
// Get a current time for where you want to start measuring from
NSDate *date = [NSDate date];
// do work...
// Find elapsed time and convert to millisecon...
Comment the interface, implementation or both?
...inciple as with code:
on interface, document the interface
on implementation, document the implementation specifics
Java specific: when documenting the implementation, use {@inheritDoc} tag to "include" javadocs from the interface.
For more information:
Official javadoc documentation
Some uno...