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Objective-C categories in static library
...rt summary of my searches and experiments.
Problem was caused by (citation from apple Technical Q&A QA1490 https://developer.apple.com/library/content/qa/qa1490/_index.html):
Objective-C does not define linker
symbols for each function (or method,
in Objective-C) - instead, linker
symbols are o...
NSPredicate: filtering objects by day of NSDate property
...ponents = [calendar components:(NSCalendarUnitYear | NSCalendarUnitMonth ) fromDate:[NSDate date]];
//create a date with these components
NSDate *startDate = [calendar dateFromComponents:components];
[components setMonth:1];
[components setDay:0]; //reset the other components
[components setYear:0];...
Prevent the keyboard from displaying on activity start
...ng these to false should work though, as the idea is to get the focus away from the EditText boxes.
– Protean
Apr 25 '18 at 5:17
...
Script parameters in Bash
...self.
The arguments are seperated by spaces, so if you would provide the -from and -to in the command, they will end up in these variables too, so for this:
./ocrscript.sh -from /home/kristoffer/test.png -to /home/kristoffer/test.txt
You'll get:
$0 # ocrscript.sh
$1 # -from
$2 # /home/...
How to dismiss notification after action has been clicked
...e it an id - that is the unique id you can use to access it later (this is from the notification manager:
notify(int id, Notification notification)
To cancel, you would call:
cancel(int id)
with the same id. So, basically, you need to keep track of the id or possibly put the id into a Bundle ...
Android Emulator: Installation error: INSTALL_FAILED_VERSION_DOWNGRADE
...ionCode (integer value for your version number).
You might have installed from a separate copy of the code where the version number was higher than the copy you're working with right now. In either case, either:
uninstall the currently installed copy
or open up your phone's Settings > Applica...
Expert R users, what's in your .Rprofile? [closed]
...
Here is mine. It won't help you with the coloring but I get that from ESS and Emacs...
options("width"=160) # wide display with multiple monitors
options("digits.secs"=3) # show sub-second time stamps
r <- getOption("repos") # hard code the US rep...
Where to place $PATH variable assertions in zsh?
...thon, node etc additions to my $PATH?
Generally, I would export my $PATH from ~/.zshrc, but it's worth having a read of the zshall man page, specifically the "STARTUP/SHUTDOWN FILES" section - ~/.zshrc is read for interactive shells, which may or may not suit your needs - if you want the $PATH for...
System.Timers.Timer vs System.Threading.Timer
...ill, by default, call your timer event handler on a worker thread obtained from the common language runtime (CLR) thread pool. [...] The System.Timers.Timer class provides an easy way to deal with this dilemma—it exposes a public SynchronizingObject property. Setting this property to an instance o...
Array include any value from another array?
What's the most efficient way to test if an array contains any element from a second array?
5 Answers
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