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Android: Generate random color on click?
...nd.nextInt(256));
view.setBackgroundColor(color);
Though in your case it seems that you want to create a new drawable and assign it to your view. What is actually the drawable in your case? Is it an image, shape, fill...
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Add a UIView above all, even the navigation bar
...follow
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edited Mar 22 '19 at 8:37
raed
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What does ||= (or-equals) mean in Ruby?
...ads on the Ruby mailing-list that discuss this issue.
Here's one: The definitive list of ||= (OR Equal) threads and pages
If you really want to know what is going on, take a look at Section 11.4.2.3 "Abbreviated assignments" of the Ruby Language Draft Specification.
As a first approximation,
a ||= b...
Unpacking, extended unpacking and nested extended unpacking
..., but I decided to opt for completeness.
Once you know a few basic rules, it's not hard to generalize them. I'll do my best to explain with a few examples. Since you're talking about evaluating these "by hand," I'll suggest some simple substitution rules. Basically, you might find it easier to unde...
“An attempt was made to load a program with an incorrect format” even when the platforms are the sam
I'm calling functions from a 32-bit unmanaged DLL on a 64-bit system. What I get is:
20 Answers
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Serialize an object to XML
I have a C# class that I have inherited. I have successfully "built" the object. But I need to serialize the object to XML. Is there an easy way to do it?
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Where to find “Microsoft.VisualStudio.TestTools.UnitTesting” missing dll?
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You have to add reference to
Microsoft.VisualStudio.QualityTools.UnitTestFramework.dll
It can be found at "C:\Program Files\Microsoft Visual Studio 10.0\Common7\IDE\PublicAssemblies\" directory (for VS2010 professional or above; .NET Framework 4.0).
or right click on your proj...
In C++, what is a virtual base class?
I want to know what a " virtual base class " is and what it means.
11 Answers
11
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How to avoid passing parameters everywhere in play2?
... data in actions, use them directly in views. Since we don't need to explicitly declare parameters in view, this is very easy.
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Count number of records returned by group by
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This down side of this solution is that it gives you the answer multiple times (for each combination of column_1, column_2, column_3, column_4). This may or may not be a significant side-effect, depending on how you process the results.
– car...