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Android: how do I check if activity is running?
...the same class running? What if you extend MyActivity with MyChildactivity and want to check if the child is active?
– Mister Smith
Sep 2 '13 at 10:27
2
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What happens to a detached thread when main() exits?
Assume I'm starting a std::thread and then detach() it, so the thread continues executing even though the std::thread that once represented it, goes out of scope.
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Python module for converting PDF to text [closed]
...n Activestate which uses pypdf but the text generated had no space between and was of no use.
13 Answers
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What is the canonical way to trim a string in Ruby without creating a new string?
...e.strip!
The #strip! method will return nil if it didn't strip anything, and the variable itself if it was stripped.
According to Ruby standards, a method suffixed with an exclamation mark changes the variable in place.
Hope this helps.
Update: This is output from irb to demonstrate:
>> ...
Objective-C class -> string like: [NSArray className] -> @“NSArray”
...ntime (the internals of the runtime are mostly hidden from the application and exposed only through a few API functions). Each class object (e.g. [NSArray class]) is actually a struct. The struct contains a lot of information about the class, including its name, the methods it implements, the superc...
Can I change the viewport meta tag in mobile safari on the fly?
....0, maximum-scale=1.0, user-scalable=0');
Just change the parts you need and Mobile Safari will respect the new settings.
Update:
If you don't already have the meta viewport tag in the source, you can append it directly with something like this:
var metaTag=document.createElement('meta');
metaT...
What exactly does the Access-Control-Allow-Credentials header do?
I'm trying to understand how to use CORS and am confused about what the Access-Control-Allow-Credentials header does.
1 A...
What does the explicit keyword mean?
...hat takes a Foo object:
void DoBar (Foo foo)
{
int i = foo.GetFoo ();
}
and here's where the DoBar function is called:
int main ()
{
DoBar (42);
}
The argument is not a Foo object, but an int. However, there exists a constructor for Foo that takes an int so this constructor can be used to conv...
Reading a resource file from within jar
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Thank you, this was very helpful and the code works perfectly, but I do have one problem, I need to determine whether the InputStream exists (like File.exists()) so my game can tell whether to use the default file or not. Thanks.
– Prin...
How to RSYNC a single file?
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-a includes recursive and that is not needed for a single file not sure if I would use that flag for single file as it can lead to unintended behavior if the filename by accident becomes a directory.
– redanimalwar
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