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Dynamically generating a QR code with PHP [closed]
...update.
To use this , basically:
https://chart.googleapis.com/chart?chs=300x300&cht=qr&chl=http%3A%2F%2Fwww.google.com%2F&choe=UTF-8
300x300 is the size of the QR image you want to generate,
the chl is the url-encoded string you want to change into a QR code, and
the choe is the (op...
HTML form readonly SELECT tag/input
...
use .prop('disabled',true/false) to set the disabled property. The attribute won't change the actual state.
– Paris Char
Jan 30 '15 at 2:08
...
Using Mockito with multiple calls to the same method with the same arguments
...n(someMock.someMethod()).thenAnswer(new Answer() {
private int count = 0;
public Object answer(InvocationOnMock invocation) {
if (count++ == 1)
return 1;
return 2;
}
});
Or using the equivalent, static doAnswer method:
doAnswer(new Answer() {
private ...
Detect Retina Display
...unning iOS4+ and if the [UIScreen mainScreen].scale property is equal to 2.0. You CANNOT assume a device is running iOS4+ if the scale property exists, as the iPad 3.2 also contains this property.
On an iPad running iOS3.2, scale will return 1.0 in 1x mode, and 2.0 in 2x mode -- even though we kno...
Sorting an array of objects in Ruby by object attribute?
...
230
I recommend using sort_by instead:
objects.sort_by {|obj| obj.attribute}
Especially if attrib...
How to configure socket connect timeout
... just lets you make the code not wait for 20 seconds (the internal timeout set in socket connect). But in case if the connection takes longer, the BeginConnect will stop anyway. Or, does BeginConnect internally waits forever? I have a very slow connection when sometimes it's required for up to 30-40...
How to remove all characters after a specific character in python?
...ost once, and take the first piece:
sep = '...'
rest = text.split(sep, 1)[0]
You didn't say what should happen if the separator isn't present. Both this and Alex's solution will return the entire string in that case.
sha...
Git will not init/sync/update new submodules
...ically generate stuff in .git/config (from .gitmodules). It is intended to set up something in an entirely empty subdirectory after cloning the parent project, or pulling a commit that adds a previously non-existing submodule.
In other words, you follow a git clone of a project that has submodules ...
How do I concatenate const/literal strings in C?
...
401
In C, "strings" are just plain char arrays. Therefore, you can't directly concatenate them with...
How to Resize a Bitmap in Android?
...
560
Change:
profileImage.setImageBitmap(
BitmapFactory.decodeByteArray(imageAsBytes, 0, imageAs...