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setNeedsLayout vs. setNeedsUpdateConstraints and layoutIfNeeded vs updateConstraintsIfNeeded
...l to layoutIfNeeded calls layoutSubviews.
When layoutSubviews is called, it also calls updateConstraintsIfNeeded, so calling it manually is rarely needed in my experience. In fact, I have never called it except when debugging layouts.
Updating constraints using setNeedsUpdateConstraints is pretty...
What are the mathematical/computational principles behind this game?
My kids have this fun game called Spot It! The game constraints (as best I can describe) are:
9 Answers
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Java: Equivalent of Python's range(int, int)?
...sSet(DiscreteDomains.integers());
You can also implement a fairly simple iterator to do the same sort of thing using Guava's AbstractIterator:
return new AbstractIterator<Integer>() {
int next = getStart();
@Override protected Integer computeNext() {
if (isBeyondEnd(next)) {
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Differences between ExpandoObject, DynamicObject and dynamic
...the compiler does the rest.
When you use the dynamic keyword to interact with a normal instance, the DLR performs late-bound calls to the instance's normal methods.
The IDynamicMetaObjectProvider interface allows a class to take control of its late-bound behavior.
When you use the dynamic keyword ...
Get Value of a Edit Text field
I am learning how to create UI elements. I have created a few EditText input fields. On the click of a Button I want to capture the content typed into that input field.
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C# vs Java Enum (for those new to C#)
...rogramming in Java for a while and just got thrown onto a project that's written entirely in C#. I'm trying to come up to speed in C#, and noticed enums used in several places in my new project, but at first glance, C#'s enums seem to be more simplistic than the Java 1.5+ implementation. Can anyon...
For each row return the column name of the largest value
...f employees, and I need to know at what department they are in most often. It is trivial to tabulate employee ID against department name, but it is trickier to return the department name, rather than the number of roster counts, from the frequency table. A simple example below (column names = depart...
How to add a line break in C# .NET documentation
...</para> tags as a way to group the text and add the blank line after it, but there is no equivalent to <br /> or anything like that. (Which according to this old MS forum post is by design.) You can get the list of available tags in this documentation article from MS. Documenting your c...
How to move Jenkins from one PC to another
I am currently using Jenkins on my development PC. I installed it on my development PC, because I had limited knowledge on this tool; so I tested on it in my development PC. Now, I feel comfortable with Jenkins as my long term "partner" in the build process and would like to "move" this Jenkins to a...
What is the optimal Jewish toenail cutting algorithm?
...ll automatically trim toenails, so that users can simply put their feet in it and run it instead of having to manually do it by biting them or using nail clippers.
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