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Count with IF condition in MySQL query
...automatically convert NULL to '' when fetching the value. For example with PHP's mysqli interface it would be safe to run your query without COALESCE().
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How do I put the image on the right side of the text in a UIButton?
...bclass. If you want to create an instance of a specific subclass, you must alloc/init the button directly and backgroundRectForBounds Subclasses that provide custom background adornments can override this method and return a modified bounds rectangle to prevent the button from drawing over any custo...
How to get Bitmap from an Uri?
...images, the following code will load it in in tiles (avoiding large memory allocations):
BitmapRegionDecoder decoder = BitmapRegionDecoder.newInstance(myStream, false);
Bitmap region = decoder.decodeRegion(new Rect(10, 10, 50, 50), null);
See the answer here
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Convert list to array in Java [duplicate]
... in the specified array, it is returned therein. Otherwise, a new array is allocated with the runtime type of the specified array and the size of this list.
– Su Zhang
Feb 13 '14 at 3:09
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Strangest language feature
... a pool of Integer instances for values between -128 and 128, otherwise it allocs a new Integer, right?
– Mike Akers
Jan 4 '10 at 20:25
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C++ preprocessor __VA_ARGS__ number of arguments
...es, but the solutions seem to either be less general (requiring that first token to be pasteable; which may or may not be okay depending on what you're using it for), or implementation specific (such as requiring gnu's comma-removing-paste trick).
– H Walters
J...
Python Pandas: Get index of rows which column matches certain value
... frame (whose data may be gibabytes). What about dftest? Doesn't this also allocate a very large intermediate object where the returned index may be very small, or even empty. Are these magically optimized away using lazy views. If not then surely there must be an efficient way.
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difference between variables inside and outside of __init__()
...s if you don't create them in __init__().
– too much php
Oct 8 '09 at 11:43
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@too much php: All ...
What is the “realm” in basic authentication
I'm setting up basic authentication on a php site and found this page on the php manual showing the set up. What does "realm" mean here in the header?
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Getting the current Fragment instance in the viewpager
...since it handle it by itself. The ViewPager decide when fragment should be allocated or not, what to pause and when, keeping a reference on every fragment will add some useless overhead and is not optimized for the memory.
– Livio
Nov 6 '15 at 15:17
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