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Understanding Fragment's setRetainInstance(boolean)
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First of all, check out my post on retained Fragments. It might help.
Now to answer your questions:
Does the fragment also retain its view state, or will this be recreated on configuration change - what exactly is "retained"?
Yes, the Fragment's state will be retained across the configura...
Fastest way to replace NAs in a large data.table
...= function(dt) remove_na(dt)
f_gdata = function(dt, un = 0) gdata::NAToUnknown(dt, un)
f_dowle = function(dt) { # see EDIT later for more elegant solution
na.replace = function(v,value=0) { v[is.na(v)] = value; v }
for (i in names(dt))
eval(parse(text=paste("dt[,",i,":=na.replace(",i,"...
How to determine the memory footprint (size) of a variable?
... copied the some important thing which may help you also.
As you probably know, Xdebug dropped the memory profiling support since the 2.* version. Please search for the "removed functions" string here: http://www.xdebug.org/updates.php
Removed functions
Removed support for Memory profiling as that ...
Sprintf equivalent in Java
... string rather than a file (which is what sprintf does in C). Does anyone know how to do this?
5 Answers
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How to use unicode characters in Windows command line?
...3 of my keyboard layout (mentioned above) was missing some support files. Now fixed! (Judging by my .log files, it is an intermittent bug in zip -ru [?!]. Have no clue how to debug it — or avoid in the future…)
– Ilya Zakharevich
Sep 20 '18 at 2:50
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Change the Right Margin of a View Programmatically?
...eft, top, right, bottom
tv.setLayoutParams(params);
I can't test it right now, so my casting may be off by a bit, but the LayoutParams are what need to be modified to change the margin.
NOTE
Don't forget that if your TextView is inside, for example, a
RelativeLayout, one should use RelativeLayout....
Tables instead of DIVs [duplicate]
...into my brain. The resulting code was even less semantic. Once you get to know HTML and all it offers, you learn to write meaningful code and it all becomes simple.
– nickf
Sep 16 '08 at 5:08
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What's the difference between getRequestURI and getPathInfo methods in HttpServletRequest?
...this, the method getRequestURL would give you parts 1, 2, 3, 4, 5 and 6).
Now:
part 4 (the context path) is used to select your particular application out of many other applications that may be running in the server
part 5 (the servlet path) is used to select a particular servlet out of many othe...
How do I enable TODO/FIXME/XXX task tags in Eclipse?
In all my years of using Eclipse, I never knew until now that TODO / FIXME / XXX comment tags are supposed to appear in the task list. Apparently this is something that is disabled by default because I have been using those tags for as long as I've been using Eclipse and I have never seen one of the...
How do I make my GUI behave well when Windows font scaling is greater than 100%
...hat trap.
Windows 8.1 per monitor DPI update
As of Windows 8.1, there is now OS support for per-monitor DPI settings (http://msdn.microsoft.com/en-ca/magazine/dn574798.aspx). This is a big issue for modern devices which might have different displays attached with very different capabilities. You m...