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How to implement the factory method pattern in C++ correctly
...d thing is that you can immediately see what coordinate type you're using, and at the same time you don't have to worry about copying. If you want copying, and it's expensive (as proven by profiling, of course), you may wish to use something like Qt's shared classes to avoid copying overhead.
As fo...
How to identify CAAnimation within the animationDidStop delegate?
...om operations when the animations stopped, but I only wanted one delegate handler for animationDidStop.
10 Answers
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How do I declare a global variable in VBA?
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When I try to declare an array as public it says: array and user-defined data types can't be declared as public.
– kapilddit
Nov 13 '19 at 12:25
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What's the Android ADB shell “dumpsys” tool and what are its benefits?
I'm looking for the full list of ADB shell dumpsys commands with a full explanation of all of the commands.
4 Answers
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Why is the default value of the string type null instead of an empty string?
...pe null instead of an empty
string?
Because string is a reference type and the default value for all reference types is null.
It's quite annoying to test all my strings for null before I can
safely apply methods like ToUpper(), StartWith() etc...
That is consistent with the behaviour of...
How to git reset --hard a subdirectory?
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With Git 2.23 (August 2019), you have the new command git restore
git restore --source=HEAD --staged --worktree -- aDirectory
# or, shorter
git restore -s@ -SW -- aDirectory
That would replace both the index and working tree with HEAD content, like an reset --hard would,...
Android - Launcher Icon Size
...ge version of your icon when uploading your app onto the Google Play Store and this should be WEB 512 x 512. This is so large so that Google can rescale it to any size in order to advertise your app throughout the Google Play Store and not add pixelation to your logo.
Basically, all of the other ic...
Sorting multiple keys with Unix sort
...s that need to be sorted by 1-n keys. Some of these keys might be numeric and some of them might not be. This is a fixed-width columnar file so there are no delimiters.
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The import android.support cannot be resolved
...g to run the code provided HERE
I downloaded the code from their Github and imported into Android SDK, but it shows error at the lines
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Execute command on all files in a directory
...ich need to be run through a program. The program outputs the results to standard out. I need a script that will go into a directory, execute the command on each file, and concat the output into one big output file.
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