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Significance of -pthread flag when compiling
In various multi threaded C and C++ projects I've seen the -pthread flag applied to both the compiling and linking stage while others don't use it at all and just pass -lpthread to the linking stage.
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Check play state of AVPlayer
...ItemDidPlayToEndTimeNotification
object:<#A player item#>];
And to track playing you can:
"track changes in the position of the playhead in an AVPlayer object" by using addPeriodicTimeObserverForInterval:queue:usingBlock: or addBoundaryTimeObserverForTimes:queue:usingBlock:.
Exampl...
Android: How to enable/disable option menu item on button click?
...enu() method is called
only once, as described above. The
system keeps and re-uses the Menu you
define in this method until your
activity is destroyed. If you want to
change the Options Menu any time after
it's first created, you must override
the onPrepareOptionsMenu() method.
This ...
When exactly are onSaveInstanceState() and onRestoreInstanceState() called?
...igure (from the official doc ) describes the well-known lifecycle of an Android activity:
5 Answers
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How do you track record relations in NoSQL?
I am trying to figure out the equivalent of foreign keys and indexes in NoSQL KVP or Document databases. Since there are no pivotal tables (to add keys marking a relation between two objects) I am really stumped as to how you would be able to retrieve data in a way that would be useful for normal we...
Bash script processing limited number of commands in parallel
...ple, 4 processes process1 ... process4 would be started in the background, and the shell would wait until those are completed before starting the next set.
From the GNU manual:
wait [jobspec or pid ...]
Wait until the child process specified by each process ID pid or job specification jobsp...
How do I specify a single test in a file with nosetests?
I have a file called test_web.py containing a class TestWeb and many methods named like test_something().
6 Answers
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Get decimal portion of a number with JavaScript
I have float numbers like 3.2 and 1.6 .
22 Answers
22
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Build vs new in Rails 3
...rm.client.new is creating a new Client object from the clients collection, and so it can automatically set the firm_id to some_firm.id, whereas the docs are calling Client.new which has no knowledge of any Firm's id at all, so it needs the firm_id passed to it.
The only difference between some_firm...
Swift how to sort array of custom objects by property value
lets say we have a custom class named imageFile and this class contains two properties.
18 Answers
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