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Dialog throwing "Unable to add window — token null is not for an application” with getApplication()

...as it's own 'this'. In that case, you'd define "Context context" globally, and then in the onCreate, set "context = this", and then refer to "context". Hope that comes in handy too. – Steven L Sep 11 '11 at 13:04 ...
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How can I disable logging of asset pipeline (sprockets) messages in Ruby on Rails 3.1?

...w works for Ruby on Rails 3.2 too (previous attempt fixes before_dispatch, and now we're going for the root rack call instead) Update: A proper Rack middleware solution (instead of fragile alias_method_chain) from @macournoyer https://github.com/rails/rails/issues/2639#issuecomment-6591735 ...
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How can I mask a UIImageView?

....layer.mask = mask; yourImageView.layer.masksToBounds = YES; For Swift 4 and plus follow code below let mask = CALayer() mask.contents = [ UIImage(named: "right_challenge_bg")?.cgImage] as Any mask.frame = CGRect(x: 0, y: 0, width: leftBGImage.frame.size.width, height: leftBGImage.frame.size.hei...
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Styling an input type=“file” button

...ou will need to look at the tricksy approach of overlaying a styled button and input box on top of the native file input. The article already mentioned by rm at www.quirksmode.org/dom/inputfile.html is the best one I've seen. UPDATE Although it's difficult to style an <input> tag directly, t...
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Android: Clear the back stack

In Android I have some activities, let's say A, B, C. 38 Answers 38 ...
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Laravel Controller Subfolder routing

I'm new to Laravel. To try and keep my app organized I would like to put my controllers into subfolders of the controller folder. ...
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Mocking a class: Mock() or patch()?

I am using mock with Python and was wondering which of those two approaches is better (read: more pythonic). 2 Answers ...
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How to hide databases that I am not allowed to access

...estriction' type in the name of your database(s) enclosed in single quotes and separated by spaces. E.g. 'dback447' Update for pgAdmin 4 - Do not use quotes, just the plain DB name. share | im...
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Fill between two vertical lines in matplotlib

...r than one of the fill between functions. The differences is that axvspan (and axhspan) will fill up the entire y (or x) extent of the plot regardless of how you zoom. For example, let's use axvspan to highlight the x-region between 8 and 14: import matplotlib.pyplot as plt fig, ax = plt.subplots...
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How do I get a PHP class constructor to call its parent's parent's constructor?

I need to have a class constructor in PHP call its parent's parent's (grandparent?) constructor without calling the parent constructor. ...