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Lock screen orientation (Android) [duplicate]
...estedOrientation() will cause the Activity to restart, triggering onResume etc twice. Add this to your manifest for every activity where you do this to avoid it: android:configChanges="keyboardHidden|orientation|screenSize"
– bluehallu
Mar 24 '16 at 14:17
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jQuery or CSS selector to select all IDs that start with some string [duplicate]
...don't know the type of html element? like it could be an input, or select, etc.
– And Wan
Jul 13 '17 at 14:44
@And Wan...
putting current class as return type annotation [duplicate]
...e in the -> 'Graph' format now - you can CMD+Click to go to definition, etc
– Daniel Schaffer
May 18 at 20:31
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Loop code for each file in a directory [duplicate]
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Try GLOB()
$dir = "/etc/php5/*";
// Open a known directory, and proceed to read its contents
foreach(glob($dir) as $file)
{
echo "filename: $file : filetype: " . filetype($file) . "<br />";
}
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Click Event on UIImageView programmatically in ios
...ect fit, whatever.
Overlay this with a UIView (equal dimensions, position etc.)
Set the background to clearcolour, and the class to UIControl.
Point the touch up inside event to your handler, and voila.
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c++ boost::multi_index composite keys efficiency - c++1y / stl - 清泛IT社区，为创新赋能！
...performed by the first key, then the second key if the first one is equal, etc". Does this mean that the structure is stored such that a lookup for a specific 2-part composite key will take O(n=1) time, i.e. is the container sorted such that there is a pointer directly to each item, or does the...
multi-layer perceptron (MLP) architecture: criteria for choosing number of hidden layers and size of
... model data--whether on ML bulletin boards, ML Textbooks, academic papers, etc. They exist, certainly, but the circumstances that justify their use is empirically quite rare.
How many nodes in the hidden layer?
From the MLP academic literature. my own experience, etc., I have gathered and often ...
Why should I avoid using Properties in C#?
...treat them as if they're fields, assuming that they'll be cheap to execute etc.
Personally I disagree with him on this particular point - I find properties make the client code much simpler to read than the equivalent method calls. I agree that developers need to know that properties are basically ...
Why do I need an IoC container as opposed to straightforward DI code? [closed]
...t you get going very quickly. With autofac, structure map, unity, ninject, etc you should be able to have the container working in about 5 mins. Yes they have advanced features but you don't need those to get off the ground.
– Glenn Block
Aug 18 '09 at 7:53
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How efficient is locking an unlocked mutex? What is the cost of a mutex?
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This depends on what you actually call "mutex", OS mode and etc.
At minimum it's a cost of an interlocked memory operation. It's a relatively heavy operation (compared to other primitive assembler commands).
However, that can be very much higher. If what you call "mutex" a kernel ob...