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What's the best way to iterate an Android Cursor?
...first result row, so on the first iteration this moves to the first result if it exists. If the cursor is empty, or the last row has already been processed, then the loop exits neatly.
Of course, don't forget to close the cursor once you're done with it, preferably in a finally clause.
Cursor cur...
How to compare 2 files fast using .NET?
...5 checksum with C#.
However, a checksum may be faster and make more sense if you can pre-compute the checksum of the "test" or "base" case. If you have an existing file, and you're checking to see if a new file is the same as the existing one, pre-computing the checksum on your "existing" file wou...
How to add http:// if it doesn't exist in the URL?
How can I add http:// to a URL if it doesn't already include a protocol (e.g. http:// , https:// or ftp:// )?
8 Answe...
Fastest check if row exists in PostgreSQL
...to table, but these inserts are always done in batches. So I want to check if a single row from the batch exists in the table because then I know they all were inserted.
...
Creating a blurring overlay view
...s a native API that has been fine-tuned for performance and great battery life, plus it's easy to implement.
Swift:
//only apply the blur if the user hasn't disabled transparency effects
if !UIAccessibility.isReduceTransparencyEnabled {
view.backgroundColor = .clear
let blurEffect = UIBlu...
How to find out if a Python object is a string?
How can I check if a Python object is a string (either regular or Unicode)?
15 Answers
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What's the algorithm to calculate aspect ratio?
...integer solution like 16:9 rather than a float:1 solution like 1.77778:1.
If so, what you need to do is find the greatest common divisor (GCD) and divide both values by that. The GCD is the highest number that evenly divides both numbers. So the GCD for 6 and 10 is 2, the GCD for 44 and 99 is 11.
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I need this baby in a month - send me nine women!
Under what circumstances - if any - does adding programmers to a team actually speed development of an already late project?
...
How can I escape white space in a bash loop list?
...though this requires that your find support -print0:
# this is safe
while IFS= read -r -d '' n; do
printf '%q\n' "$n"
done < <(find test -mindepth 1 -type d -print0)
You can also populate an array from find, and pass that array later:
# this is safe
declare -a myarray
while IFS= read -r ...
How to remove multiple indexes from a list at the same time? [duplicate]
...ether in general you need to remove an arbitrary collection of indexes, or if it will always be a contiguous sequence.
If you have an arbitrary collection of indexes, then:
indexes = [2, 3, 5]
for index in sorted(indexes, reverse=True):
del my_list[index]
Note that you need to delete them in...