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Can I change multiplier property for NSLayoutConstraint?
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If you have only have two sets of multipliers that need to be applied, from iOS8 onwards you can add both sets of constraints and decide which should be active at any time:
NSLayoutConstraint *standardConstraint, *zoomedCons...
How to filter None's out of List[Option]?
If I have a List[Option[A]] in Scala, what is the idiomatic way to filter out the None values?
3 Answers
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What is the best way to solve an Objective-C namespace collision?
...er classes in that first framework which reference the renamed class would now reference the class from the other framework.
You wouldn't need to copy or rename a class if there were a way to copy the data pointed to by an IMP. You could create a new class and then copy over ivars, methods, propert...
Getting current device language in iOS?
...he currently selected language. These are often one and the same. However, if I am in North America and I set my language to Japanese, my region will still be English (United States). In order to retrieve the currently selected language, you can do:
NSString * language = [[NSLocale preferredLanguag...
AttributeError: 'datetime' module has no attribute 'strptime'
...tatements
import datetime: that's the module (that's what you have right now).
from datetime import datetime: that's the class.
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Is it possible to make a type only movable and not copyable?
... the marker types is preferred if the destructor is doing nothing.
Types now move by default, that is, when you define a new type it doesn't implement Copy unless you explicitly implement it for your type:
struct Triplet {
one: i32,
two: i32,
three: i32
}
impl Copy for Triplet {} // a...
Set transparent background using ImageMagick and commandline prompt
... just the top-left corner. (There may be other things I'm forgetting right now).
– hackerb9
Jul 4 '17 at 15:20
2
Cost of len() function
...Here's a link to a table that provides the algorithmic complexity of many different functions in CPython:
TimeComplexity Python Wiki Page
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windowSoftInputMode=“adjustResize” not working with translucent action/navbar
...call through to FrameLayout's
* implementation.
*
* For reasons yet unknown, modifying the bottom inset causes this workaround to
* fail. Modifying the top, left, and right insets works as expected.
*/
public final class CustomInsetsFrameLayout extends FrameLayout {
private int[] mInsets =...
UIButton: Making the hit area larger than the default hit area
...value = objc_getAssociatedObject(self, &KEY_HIT_TEST_EDGE_INSETS);
if(value) {
UIEdgeInsets edgeInsets; [value getValue:&edgeInsets]; return edgeInsets;
}else {
return UIEdgeInsetsZero;
}
}
- (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event {
if(UI...