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How can I do something like a FlowLayout in Android?
How can I do something like a FlowLayout in Android?
9 Answers
9
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Test if characters are in a string
...try to match on an invalid regex, it doesn't work:
> grep("[", "abc[")
Error in grep("[", "abc[") :
invalid regular expression '[', reason 'Missing ']''
To do a true substring test, use fixed = TRUE.
> grep("[", "abc[", fixed = TRUE)
[1] 1
If you do want regex, great, but that's not w...
Why does running the Flask dev server run itself twice?
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answered Dec 19 '19 at 12:05
salsa_mansalsa_man
4633 bronze badges
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How to use ArrayAdapter
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Sorry, MyClass item = items.get(position) solves the error, mismatches variables by me.
– Sumit M Asok
Feb 16 '10 at 2:38
1
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How do I search for an object by its ObjectId in the mongo console?
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This gives me an error: TypeError: filter must be an instance of dict, bson.son.SON, or other type that inherits from collections.Mapping
– David Okwii
May 10 '16 at 12:47
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How to convert a data frame column to numeric type?
...e" to numeric. If there's just one character element in vector, you'll get error when trying to convert that vector to numerical one.
And just to prove my point:
> err <- c(1, "b", 3, 4, "e")
> mode(err)
[1] "character"
> class(err)
[1] "character"
> char <- as.numeric(err)
Warni...
Finding three elements in an array whose sum is closest to a given number
... a better solution because it's easier to read and therefore less prone to errors. The only problem is, we need to add a few lines of code to avoid multiple selection of one element.
Another O(n^2) solution (by using a hashset).
// K is the sum that we are looking for
for i 1..n
int s1 = K - A...
Is there a way to get rid of accents and convert a whole string to regular letters?
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– Michał Politowski
Jun 18 '13 at 9:05
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This is a good approach, but removing all non-ASCII cha...
A variable modified inside a while loop is not remembered
In the following program, if I set the variable $foo to the value 1 inside the first if statement, it works in the sense that its value is remembered after the if statement. However, when I set the same variable to the value 2 inside an if which is inside a while statement, it's forgotten af...
Unable to find a locale path to store translations for file __init__.py
...wever, when I execute the following command in my app folder, I receive an error message:
3 Answers
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