大约有 40,000 项符合查询结果（耗时：0.0647秒） [XML]
Dynamic cell width of UICollectionView depending on label width
...d of sizeToFit, use sizeWithAttributes to get the CGSize of the text, then set the label's frame with new size.
– Basheer_CAD
Apr 18 '14 at 9:13
...
Java String to SHA1
... MessageDigest crypt = MessageDigest.getInstance("SHA-1");
crypt.reset();
crypt.update(password.getBytes("UTF-8"));
sha1 = byteToHex(crypt.digest());
}
catch(NoSuchAlgorithmException e)
{
e.printStackTrace();
}
catch(UnsupportedEncodingException e)...
How random is JavaScript's Math.random?
For 6 years I've had a random number generator page on my website. For a long time, it was the first or second result on Google for "random number generator" and has been used to decide dozens, if not hundreds of contests and drawings on discussion forums and blogs (I know because I see the referr...
RegEx for matching UK Postcodes
... ^^
Problem 3 - Improper Character Set
See regex in use here.
^([Gg][Ii][Rr] 0[Aa]{2})|((([A-Za-z][0-9]{1,2})|(([A-Za-z][A-Ha-hJ-Yj-y][0-9]{1,2})|(([AZa-z][0-9][A-Za-z])|([A-Za-z][A-Ha-hJ-Yj-y][0-9]?[A-Za-z])))) [0-9][A-Za-z]{2})$
...
LINQ Using Max() to select a single row
...> g.Key).First().First();
The first First() gets the first group (the set of rows with the largest status); the second First() gets the first row in that group.
If the status is always unqiue, you can replace the second First() with Single().
...
How to get numbers after decimal point?
How do I get the numbers after a decimal point?
29 Answers
29
...
how to unit test file upload in django
In my django app, I have a view which accomplishes file upload.The core snippet is like this
10 Answers
...
targetContentOffsetForProposedContentOffset:withScrollingVelocity without subclassing UICollectionVi
... is incredibly easy for anyone who is reading this in the future.
First I set up the subclass call MyCollectionViewFlowLayout and then in interface builder I changed the collection view layout to Custom and selected my flow layout subclass.
Because you're doing it this way you can't specify items ...
指定组件的大小 · App Inventor 2 中文网
...reen component behaves like a VerticalArrangement whose Height property is set to Automatic. When the Scrollable property is not checked, the Screen component behaves like a VerticalArrangement whose Height property is specified in pixels.
VerticalArrangement
In a VerticalArrangement, components ar...
Changing navigation bar color in Swift
...
After updating to the newer Xcode betas, setting the title text colour no longer works. titleTextAttributes is not available in Swift. Any ideas?
– user3746428
Aug 1 '14 at 13:28
...