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converting Java bitmap to byte array
...te in Kotlin.
/**
* Convert bitmap to byte array using ByteBuffer.
*/
fun Bitmap.convertToByteArray(): ByteArray {
//minimum number of bytes that can be used to store this bitmap's pixels
val size = this.byteCount
//allocate new instances which will hold bitmap
val buffer = Byt...
How to add a button to UINavigationBar?
....normal)
self.navigationItem.leftBarButtonItem = cancelBarButton
func cancelPressed(_ sender: UIBarButtonItem ) {
self.dismiss(animated: true, completion: nil)
}
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How can you do anything useful without mutable state?
I've been reading a lot of stuff about functional programming lately, and I can understand most of it, but the one thing I just can't wrap my head around is stateless coding. It seems to me that simplifying programming by removing mutable state is like "simplifying" a car by removing the dashboard:...
Remove CSS “top” and “left” attributes with jQuery
...'t have to read back and forth flame wars on stack overflow (no matter how fun/enlightening that may be!).
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Bootstrap table striped: How do I change the stripe background colour?
...atter if they are immediate children or not.
– jumps4fun
May 1 at 10:43
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Converting camel case to underscore case in ruby
Is there any ready function which converts camel case Strings into underscore separated string?
11 Answers
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How to convert a Binary String to a base 10 integer in Java
...y need to sign extend your string then convert to an Int
public class bit_fun {
public static void main(String[] args) {
int x= (int)Long.parseLong("FFFFFFFF", 16);
System.out.println("x =" +x);
System.out.println(signExtend("1"));
x= (int)Long.parseLong(...
Pairs from single list
...
The first (pairwise) function seems to be missing the cloning and advancing of the second iterator. See the itertools recipes section.
– Apalala
Jan 7 '11 at 18:40
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Beginner's guide to ElasticSearch [closed]
...
Edit (April 2015):
As many have noticed, my old blog is now defunct. Most of my articles were transferred over to the Elastic blog, and can be found by filtering on my name: https://www.elastic.co/blog/author/zachary-tong
To be perfectly honest, the best source of beginner knowledge ...
Android read text raw resource file
...sample).bufferedReader().use { it.readText() }
Or even declare extension function:
fun Resources.getRawTextFile(@RawRes id: Int) =
openRawResource(id).bufferedReader().use { it.readText() }
And then just use it straightaway:
val txtFile = resources.getRawTextFile(R.raw.rawtextsample)
...