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How can I use getSystemService in a non-activity class (LocationManager)?
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286
You need to pass your context to your fyl class..
One solution is make a constructor like this...
How can I use if/else in a dictionary comprehension?
Does there exist a way in Python 2.7+ to make something like the following?
4 Answers
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Java regular expression OR operator
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You can just use the pipe on its own:
"string1|string2"
for example:
String s = "string1, string2, string3";
System.out.println(s.replaceAll("string1|string2", "blah"));
Output:
blah, blah, string3
The main reason to use parentheses is to limit the scope of the alternat...
What does this gdb output mean?
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203
That is a confirmed bug of the iOS SDK 5 / Simulator - happens as soon as the simulator tries ...
Convert pandas dataframe to NumPy array
...taframe (df) to a numpy ndarray, use this code:
df.values
array([[nan, 0.2, nan],
[nan, nan, 0.5],
[nan, 0.2, 0.5],
[0.1, 0.2, nan],
[0.1, 0.2, 0.5],
[0.1, nan, 0.5],
[0.1, nan, nan]])
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Is there a ternary conditional operator in T-SQL?
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2 Answers
2
Active
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New line in Sql Query
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Pinal Dave explains this well in his blog.
http://blog.sqlauthority.com/2009/07/01/sql-server-difference-between-line-feed-n-and-carriage-return-r-t-sql-new-line-char/
DECLARE @NewLineChar AS CHAR(2) = CHAR(13) + CHAR(10)
PRINT ('SELECT FirstLine AS FL ' + @NewLineChar + 'SELECT SecondLine AS SL...
How do I Convert DateTime.now to UTC in Ruby?
...clude everything you need:
irb(main):016:0> Time.now
=> Thu Apr 16 12:40:44 +0100 2009
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How does the const constructor actually work?
...onicalized values:
var foo1 = const Foo(1, 1); // #Foo#int#1#int#1
var foo2 = const Foo(1, 1); // #Foo#int#1#int#1
Constants with different canonicalized values (because signatures differ):
var foo3 = const Foo(1, 2); // $Foo$int$1$int$2
var foo4 = const Foo(1, 3); // $Foo$int$1$int$3
var baz1 ...
UIButton remove all target-actions
... action:NULL
forControlEvents:UIControlEventAllEvents];
Swift 2
button.removeTarget(nil, action: nil, forControlEvents: .AllEvents)
Swift 3 or higher
button.removeTarget(nil, action: nil, for: .allEvents)
shar...