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When should one use RxJava Observable and when simple Callback on Android?
I'm working on networking for my app. So I decided to try out Square's Retrofit . I see that they support simple Callback
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Best Timer for using in a Windows service
...eb.UI.Timer and System.Windows.Forms.Timer, which are respectively for ASP applications and WinForms. Using those will cause the service to load an additional assembly which is not really needed for the type of application you are building.
Use System.Timers.Timer like the following example (also, ...
Sending email with PHP from an SMTP server
...is actually using Sendmail command to send email. Instead of modifying the application, you can change the environment. msmtp is an SMTP client with Sendmail compatible CLI syntax which means it can be used in place of Sendmail. It only requires a small change to your php.ini.
sendmail_path = "/usr...
How to use multiple AWS Accounts from the command line?
I've got two different apps that I am hosting (well the second one is about to go up) on Amazon EC2.
7 Answers
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How do I assign a port mapping to an existing Docker container?
...derstood something here, but it seems like it's only possible to set port mappings by creating a new container from an image. Is there a way to assign a port mapping to an existing Docker container?
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A generic error occurred in GDI+, JPEG Image to MemoryStream
...s = PhotoEditor.ConvertImageToByteArray(img);
return img;
}
It appears that the memory stream that the object was created on has to be open at the time the object is saved. I am not sure why this is. Is anyone able to enlighten me and how I can get around this.
I only return from a str...
Is it possible to specify your own distance function using scikit-learn K-Means Clustering?
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__date__ = "2011-11-17 Nov denis"
# X sparse, any cdist metric: real app ?
# centres get dense rapidly, metrics in high dim hit distance whiteout
# vs unsupervised / semi-supervised svm
#...............................................................................
def kmeans( X, cen...
Custom fonts and XML layouts (Android)
...is create a TypeFace cache with a HashMap. This brought memory usage in my app down from 120+ mb to 18mb. code.google.com/p/android/issues/detail?id=9904
– chedabob
Jan 24 '12 at 14:20
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Unique BooleanField value in Django?
... say that, don't ever trust save or clean methods if you are running a web application which you might take a few of requests to an endpoint at very same moment. You still must implement a safer way maybe on database level.
– u.unver34
Dec 30 '18 at 15:09
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Preferred Java way to ping an HTTP URL for availability
...e request method. However, you need to take into account that some poor webapps or homegrown servers may return HTTP 405 error for a HEAD (i.e. not available, not implemented, not allowed) while a GET works perfectly fine. Using GET is more reliable in case you intend to verify links/resources not d...