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Understanding Canvas and Surface concepts
...s of drawing to SurfaceView and therefore the whole Surface / Canvas / Bitmap system, which is used in Android.
3 Answe...
How do I add the contents of an iterable to a set?
What is the "one [...] obvious way" to add all items of an iterable to an existing set ?
6 Answers
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What is the use case of noop [:] in bash?
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It's there more for historical reasons. The colon builtin : is exactly equivalent to true. It's traditional to use true when the return value is important, for example in an infinite loop:
while true; do
echo 'Going on for...
Laravel redirect back to original destination after login
...t the time of this answer there was no official support from the framework itself. Nowadays you can use the method pointed out by bgdrl below this method: (I've tried updating his answer, but it seems he won't accept)
On auth filter:
// redirect the user to "/login"
// and stores the url being acc...
Forward declaration of nested types/classes in C++
I recently got stuck in a situation like this:
7 Answers
7
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Performance difference between IIf() and If
... foo = If(result, "Alternative")
The first is basically C#'s ternary conditional operator and the second is its coalesce operator (return result unless it’s Nothing, in which case return "Alternative"). If has thus replaced IIf and the latter is obsolete.
Like in C#, VB's conditional If operato...
Determining 32 vs 64 bit in C++
... way to reliably determine whether C++ code is being compiled in 32 vs 64 bit. We've come up with what we think is a reasonable solution using macros, but was curious to know if people could think of cases where this might fail or if there is a better way to do this. Please note we are trying to do ...
Handling warning for possible multiple enumeration of IEnumerable
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The problem with taking IEnumerable as a parameter is that it tells callers "I wish to enumerate this". It doesn't tell them how many times you wish to enumerate.
I can change the objects parameter to be List and then avoid the possi...
How can I create a temp file with a specific extension with .NET?
I need to generate a unique temporary file with a .csv extension.
17 Answers
17
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Dashed line border around UIView
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You can set the border with this pattern using Layer and Bezier path like below examples.
Objective-C
CAShapeLayer *yourViewBorder = [CAShapeLayer layer];
yourViewBorder.strokeColor = [UIColor blackColor].CGColor;
yourViewBorder.fillColor = nil;
y...