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Unbalanced calls to begin/end appearance transitions for
...e not-suitable (like during initialization) procedure finishes, by doing:
__weak MyViewController *weakSelf = self;
dispatch_async(dispatch_get_main_queue(), ^{
[weakSelf presentViewController:vc animated:YES];
});
This is general for also pushViewController:animated:, etc.
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How to load db:seed data into test database automatically?
...ore every test or just once at the beginning. You could put it in a setup call or in a test_helper.rb file.
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How do I list the functions defined in my shell?
I can type alias to show a list of all the aliases.
8 Answers
8
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How do I determine file encoding in OS X?
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That's a function call you would use if you want to write a program. From the command line, just type ls -l@ <filename> to see what attributes are set for the file. To see the actual attribute, type xattr -p com.apple.TextEncoding <fil...
LEN function not including trailing spaces in SQL Server
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This is the best, elegant solution so far. I don't really care if it FEELS like a hack or not (coding is not about feelings), I'm really care about the fact that this solution has no side effects. I can change data type varchar/nvarchar and it still works. Good job.
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Java URL encoding of query string parameters
... are represented by +, not %20, which is legitimately valid. The %20 is usually to be used to represent spaces in URI itself (the part before the URI-query string separator character ?), not in query string (the part after ?).
Also note that there are three encode() methods. One without Charset as s...
What is the exact meaning of IFS=$'\n'?
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Normally bash doesn't interpret escape sequences in string literals. So if you write \n or "\n" or '\n', that's not a linebreak - it's the letter n (in the first case) or a backslash followed by the letter n (in the other two cas...
UIButton remove all target-actions
...multiple target-action-forControlEvents: to a UIButton. I'd like to remove all of these in one go without deallocating anything. I will then set new targets.
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Search for one value in any column of any table inside a database
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How to search all columns of all
tables in a database for a keyword?
http://vyaskn.tripod.com/search_all_columns_in_all_tables.htm
EDIT: Here's the actual T-SQL, in case of link rot:
CREATE PROC SearchAllTables
(
@SearchStr nvarchar...
Android, canvas: How do I clear (delete contents of) a canvas (= bitmaps), living in a surfaceView?
...or redraw) the WHOLE canvas for a new layout (= try at the game) ?
Just call Canvas.drawColor(Color.BLACK), or whatever color you want to clear your Canvas with.
And: how can I update just a part of the screen ?
There is no such method that just update a "part of the screen" since Android OS...