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How to get RGB values from UIColor?
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error: <EXPR>:3:1: error: 'CGColorGetComponents' has been replaced by property 'CGColor.components'
– pkamb
Dec 7 '18 at 1:44
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How can I get the Google cache age of any URL or web page? [closed]
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Use the URL
https://webcache.googleusercontent.com/search?q=cache:<your url without "http://">
Example:
https://webcache.googleusercontent.com/search?q=cache:stackoverflow.com
It contains a header like this:
This is Google's cache of https://stackoverflow.com/. It is a snap...
Android: how to handle button click
...st intuitive to you.
If you have to assign the same OnClickListener to multiple button instances, save it in the class-scope (#1). If you need a simple listener for a Button, make an anonymous implementation:
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onC...
Scala: What is the difference between Traversable and Iterable traits in Scala collections?
...foreach (via a for comprehension) and throws a BreakControl exception to halt iteration once a satisfactory element has been found.
trait TravserableLike {
def find(p: A => Boolean): Option[A] = {
var result: Option[A] = None
breakable {
for (x <- this)
if (p(x)) { res...
Fast and Lean PDF Viewer for iPhone / iPad / iOS - tips and hints?
...ework:
First, you need to link against QuickLook.framework and #import
<QuickLook/QuickLook.h>;
Afterwards, in either viewDidLoad or any of the lazy initialization methods:
QLPreviewController *previewController = [[QLPreviewController alloc] init];
previewController.dataSource = self;
pr...
How do I save a UIImage to a file?
...n either .m or .h code file, such as:
@interface CameraViewController () <UIImagePickerControllerDelegate>
@end
Then you implement the delegate's imagePickerController:didFinishPickingMediaWithInfo: method, which is where you can get the photograph from the image picker and save it (of cou...
Saving grid.arrange() plot to file
I am trying to plot multiple plots using ggplot2 , arranging them using grid.arrange() .
Since I managed to find someone describing the exact problem I have, I have quoted from the problem description from link :
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Adding Http Headers to HttpClient
...tinueWith((taskwithmsg) =>
{
var response = taskwithmsg.Result;
var jsonTask = response.Content.ReadAsAsync<JsonObject>();
jsonTask.Wait();
var jsonObject = jsonTask.Result;
});
task.Wait();
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Scatterplot with marginal histograms in ggplot2
...e should work here. Start by making each of the ggplot objects:
hist_top <- ggplot()+geom_histogram(aes(rnorm(100)))
empty <- ggplot()+geom_point(aes(1,1), colour="white")+
theme(axis.ticks=element_blank(),
panel.background=element_blank(),
axis.text.x...
AsyncTask threads never die
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Use ThreadPoolExecutor.
BlockingQueue workQueue= new LinkedBlockingQueue<Runnable>(100); // Work pool size
ThreadPoolExecutor executor = new ThreadPoolExecutor(
Runtime.getRuntime().availableProcessors(), // Initial pool size
Runtime.getRuntime().availableProces...