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Android “Only the original thread that created a view hierarchy can touch its views.”
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The Painless Threading article at that link is now a 404. Here is a link to an (older?) blog piece on Painless Threading - android-developers.blogspot.com/2009/05/painless-threading.html
– Tony Adams
Jul 18 '13 at 18:14
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Download a file by jQuery.Ajax
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2019 modern browsers update
This is the approach I'd now recommend with a few caveats:
A relatively modern browser is required
If the file is expected to be very large you should likely do something similar to the original approach (iframe and cookie) because some of the belo...
Character reading from file in Python
...ite:
>>> text = u'‘'
>>> print repr(text)
u'\u2018'
Now if you simply want to print the unicode string prettily, just use unicode's encode method:
>>> text = u'I don\u2018t like this'
>>> print text.encode('utf-8')
I don‘t like this
To make sure that eve...
How do you implement a class in C? [closed]
...t (*computeArea)(const ShapeClass *shape); saying that ShapeClass is an unknown type.
– DanielSank
Aug 9 '16 at 9:01
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Avoid web.config inheritance in child web application using inheritInChildApplications
...from parent config only (even I give <location> tag). Please let me know what would be the problem.
– superachu
Apr 30 '14 at 20:56
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how to use javascript Object.defineProperty
...-shop owner might realize that the discount can't be greater than say 80%. Now you need to find EVERY occurence of the discount modification in the client code and add a line
if(obj.discount>80) obj.discount = 80;
Then the e-shop owner may further change his strategy, like "if the customer is ...
What is the difference between class and instance attributes?
...nce you get that, nothing complicated is happening here.
Hopefully it's now obvious why Alex used a list: the fact that you can mutate a list means it's easier to show that two variables name the same list, and also means it's more important in real-life code to know whether you have two lists or...
How can I pass a member function where a free function is expected?
...@DorkyEngineer That's pretty weird, I think you must be right but I don't know how that error could have gone unnoticed for so long. Anyway, I've edited the answer now.
– Matt Phillips
Apr 9 '15 at 7:11
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How to use sessions in an ASP.NET MVC 4 application?
... I am just curious about how other controllers will see the the class and know what it is. Do you just add it to the top of the controller? I was thinking on SessionStart in global.asax I would initialize things but maybe that's not the best way to do it.
– Shaun314
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Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
.../y - 1/x^2) but they will be equally complicated.
Let's look at 1/sqrt(y) now. You can try f(x) = x^2 - 1/y, but it will be equally complicated: dx = 2xy / (y*x^2 - 1) for instance.
One non-obvious alternate choice for f(x) is: f(x) = y - 1/x^2
Then: dx = -f/f' = (y - 1/x^2) / (2/x^3) = 1/2 * x * ...