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java.lang.IllegalStateException: The specified child already has a parent
...ing the return statement should solve your problem.
You can keep the code and return the view if you don't want to regenerate view data, and onDestroyView() method you remove this view from its parent like so:
@Override
public void onDestroyView() {
super.onDestroyView();
i...
Sort a Map by values
I am relatively new to Java, and often find that I need to sort a Map<Key, Value> on the values.
58 Answers
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How to make jQuery to not round value returned by .width()?
I've searched around and couldn't find this. I'm trying to get the width of a div, but if it has a decimal point it rounds the number.
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How to debug a GLSL shader?
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Why would you want to debug anything? Because its code and he wants to examine run time values I would hazard....
– RichieHH
Aug 31 '15 at 10:57
3
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What is the good python3 equivalent for auto tuple unpacking in lambda?
...just to unfold the parameters - but that would be at once more inefficient and harder to read than your two suggestions:
min(points, key=lambda p: (lambda x,y: (x*x + y*y))(*p))
update Python 3.8
As of now, Python 3.8 alpha1 is available, and PEP 572- assignment expressions are implemented.
So,...
Build vs new in Rails 3
...rm.client.new is creating a new Client object from the clients collection, and so it can automatically set the firm_id to some_firm.id, whereas the docs are calling Client.new which has no knowledge of any Firm's id at all, so it needs the firm_id passed to it.
The only difference between some_firm...
Natural Sort Order in C#
...The easiest thing to do is just P/Invoke the built-in function in Windows, and use it as the comparison function in your IComparer:
[DllImport("shlwapi.dll", CharSet = CharSet.Unicode)]
private static extern int StrCmpLogicalW(string psz1, string psz2);
Michael Kaplan has some examples of how thi...
How can I fill a div with an image while keeping it proportional?
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If I correctly understand what you want, you may leave the width and height attributes off the image to maintain aspect ratio and use flexbox to do the centering for you.
.fill {
display: flex;
justify-content: center;
align-it...
Using jQuery to test if an input has focus
...ng the $(#element).hover() method. The only problem is, now that jQuery handles both the form focus() and hover() , when an input has focus then the user moves the mouse in and out, the border goes away.
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Java Class that implements Map and keeps insertion order?
...or most cases; TreeMap has O(log n) performance for containsKey, get, put, and remove, according to the Javadocs, while LinkedHashMap is O(1) for each.
If your API that only expects a predictable sort order, as opposed to a specific sort order, consider using the interfaces these two classes implem...