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How to make a smooth image rotation in Android?
I'm using a RotateAnimation to rotate an image that I'm using as a custom cyclical spinner in Android. Here's my rotate_indefinitely.xml file, which I placed in res/anim/ :
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Can I use a binary literal in C or C++?
I need to work with a binary number.
19 Answers
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How to check if a variable is not null?
I know that below are the two ways in JavaScript to check whether a variable is not null , but I’m confused which is the best practice to use.
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Are Swift variables atomic?
In Objective-C you have a distinction between atomic and nonatomic properties:
6 Answers
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Extract a dplyr tbl column as a vector
Is there a more succinct way to get one column of a dplyr tbl as a vector, from a tbl with database back-end (i.e. the data frame/table can't be subset directly)?
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When to use Vanilla JavaScript vs. jQuery?
I have noticed while monitoring/attempting to answer common jQuery questions, that there are certain practices using javascript, instead of jQuery, that actually enable you to write less and do ... well the same amount. And may also yield performance benefits.
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How do I stop Chrome from yellowing my site's input boxes?
Among other text and visual aids on a form submission, post-validation, I'm coloring my input boxes red to signify the interactive area needing attention.
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Painless way to install a new version of R?
Andrew Gelman recently lamented the lack of an easy upgrade process for R (probably more relevant on Windows than Linux). Does anyone have a good trick for doing the upgrade, from installing the software to copying all the settings/packages over?
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Check if list is empty in C# [closed]
I have a list of objects populated from a database. I need to display an error message if the list is empty and display a grid view otherwise.
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Better way to check if a Path is a File or a Directory?
I am processing a TreeView of directories and files. A user can select either a file or a directory and then do something with it. This requires me to have a method which performs different actions based on the user's selection.
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