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Openssl is not recognized as an internal or external command
I wish to generate an application signature for my app which will later be integrated with Facebook. In one of Facebook's tutorials, I found this command:
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Split list into multiple lists with fixed number of elements
... splitInner(Nil, xs, n).reverse
}
}
object ListSplitterTest extends App {
val res = ListSplitter.split(List(1,2,3,4,5,6,7), 2)
println(res)
}
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Android Bitmap to Base64 String
...load all bytes of the image into a byte array, which will likely crash the app in low-end devices. Instead, I would first write the image to a file and read it using Apache's Base64InputStream class. Then you can create the Base64 string directly from the InputStream of that file. It will look like ...
How would I create a UIAlertView in Swift?
...ass ViewController: UIViewController {
@IBAction func showAlertButtonTapped(_ sender: UIButton) {
// create the alert
let alert = UIAlertController(title: "My Title", message: "This is my message.", preferredStyle: UIAlertController.Style.alert)
// add an action (butto...
Invoke(Delegate)
...ound thread and this would mostly work. Sometimes it would just cause your app to exit because you were effectively interrupting the GUI thread while it was doing something else. This is the Cross Threaded Exception - imagine trying to update a TextBox while the GUI is painting something else.
Wh...
How do I choose between Tesseract and OpenCV? [closed]
...-fledged OCR engine and OpenCV can be used as a framework to create an OCR application/service.
4 Answers
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Iterate over model instance field names and values in template
...chaelB Hmm. I have not been able to get "field.value" to work; the fields appear to be database fields, not the actual column data. I had to use a filter which called getattr(object, name). Which version of Django does that work for you?
– Dr. Ernie
Apr 1 '1...
Design by contract using assertions or exceptions? [closed]
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Personally I prefer asserts for design by contract approaches. Exceptions are defensive and are doing the argument checking inside the function. Also, dbc preconditions don't say "I won't work if you use values out of the working range" but "I won't guarantee to provide the r...
Django filter queryset __in for *every* item in list
...ld not be a problem for small set of categories.
There is the aggregation approach. This query would be shorter and perhaps quicker for a large set of categories.
You also have the option of using custom queries.
Some examples
Test setup:
class Photo(models.Model):
tags = models.ManyToMan...
Difference between shadowing and overriding in C#?
...'s usability really seems questionable! Is there any 'serious' open-source app using this?
– Jox
Dec 29 '08 at 15:49
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