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What's “tools:context” in Android layout files?
...rsistence for the "Associated Activity" selection above the layout. At runtime, a layout is always associated with an activity. It can of course be associated with more than one, but at least one. In the tool, we need to know about this mapping (which at runtime happens in the other direction; an a...
Why fragments, and when to use fragments instead of activities?
In Android API 11+, Google has released a new class called Fragment .
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Using PHP with Socket.io
...oject.
It is a light and easy to use library that aims to bring some real-time functionality to a PHP application through socket.io and websockets for actions that could not be done in full javascript.
example from the project website (communicate with websocket server through php)
php server
us...
Xcode - How to fix 'NSUnknownKeyException', reason: … this class is not key value coding-compliant f
...s bad practice to have names like "string" in Objective-C. It invites a runtime naming collision. Avoid them even in once off practice apps. Naming collisions can be very hard to track down and you don't want to waste the time.
Another possible reason for this error: when copying & pasting ele...
How do you do a case insensitive search using a pattern modifier using less?
It seems like the only way to do this is to pass the -i parameter in when you initially run less. Does anyone know of some secret hack to make something like this work
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Pan & Zoom Image
I want to create a simple image viewer in WPF that will enable the user to:
10 Answers
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Is there a cross-browser onload event when clicking the back button?
...r, and the "load" event was fired once on the initial load, and the second time when the page was re-loaded from the bfcache, the page would end up with duplicate UI elements.
This is also why adding the "unload" handler stops the page from being stored in the bfcache (thus making it slower to navi...
What Regex would capture everything from ' mark to the end of a line?
...$
Starting with a single quote ('), match any character (.) zero or more times (*) until the end of the line ($).
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postgresql - add boolean column to table set default
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Note that if your table is big this can take a long time and lock the table for the entire time. It's faster to split it into steps: add the column without a default with ALTER TABLE users ADD COLUMN priv_user BOOLEAN;, then UPDATE users SET priv_user = 'f'; and finally if you...
Find and replace string values in list
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looking at the timestamp is seems they both answered at the same time, maybe this one is late by some fraction of seconds...
– maksbd19
Jun 21 at 18:14
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