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Detect Retina Display
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@sickp's answer is correct. Just to make things easier, add this line into your Shared.pch file:
#define IS_RETINA ([[UIScreen mainScreen] respondsToSelector:@selector(displayLinkWithTarget:selector:)] && ([UIScreen mainScreen].scale >= 2.0))
Then in any file you can just do:
if(...
python plot normal distribution
...red Dec 11 '17 at 23:18
João QuintasJoão Quintas
42111 gold badge55 silver badges99 bronze badges
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Error inflating when extending a class
... public GhostSurfaceCameraView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init();
}
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Split string with dot as delimiter
...e returning the actual file name. Instead I think it's better if you use:
int idx = filename.lastIndexOf('.');
return filename.subString(0, idx);
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The 3 different equals
...b Identical TRUE if $a is equal to $b, and they are of the same type. (introduced in PHP 4)
For more info on the need for == and ===, and situations to use each, look at the docs.
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@property retain, assign, copy, nonatomic in Objective-C
...retain is the same as strong.
-apple says if you write retain it will auto converted/work like strong only.
-methods like "alloc" include an implicit "retain"
Example:
@property (nonatomic, retain) NSString *name;
@synthesize name;
assign
-assign is the default and simply performs a variable...
Getting file names without extensions
...st<string> returnValue = new List<string>();
for (int i = 0; i < fi.Length; i++)
{
returnValue.Add(Path.GetFileNameWithoutExtension(fi[i].FullName));
}
return returnValue.ToArray<string>();
}
}
}
E...
When do we have to use copy constructors?
...ovided copy constructor will break the internal intra-object associations, converting them to inter-object associations.
An example:
struct MarriedMan;
struct MarriedWoman;
struct MarriedMan {
// ...
MarriedWoman* wife; // association
};
struct MarriedWoman {
// ...
MarriedMan*...
How to use putExtra() and getExtra() for string data
...omeone please tell me how exactly to use getExtra() and putExtra() for intents? Actually I have a string variable, say str, which stores some string data. Now, I want to send this data from one activity to another activity.
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Get day of week in SQL Server 2005/2008
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thx, I had tried datename but used d, gave me an integer back. dw works as expected
– aaaa
Jul 10 '09 at 17:59
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