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Ant task to run an Ant target only if a file exists?
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In case anyone wondered, the if and unless attributes only enable or disable the target to which they are attached, i.e. the target's dependencies are always executed. Otherwise it would not work to depend on a target that sets the prop...
How to create duplicate allowed attributes
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Except that it stops anyone else from reusing your code. Worth noting that validation attributes in DataAnnotations are not sealed, which is extremely useful as it make it possible to create specializations of them.
– Neutrino
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How to set different label for launcher rather than activity title?
...label attribute. If it's absent the label is inherited from the parent component (either Activity or Application). So using this, you can set a label for the launcher icon, while still having the Activity with it's own title.
Note that, while this works on emulators, it might not work on real devic...
How to attach javadoc or sources to jars in libs folder?
...roperties
Do not forget to close and re-open the Eclipse project as mentioned above!
Here is a screenshot of a working example project referencing the GoogleAdMobAds Android library.
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How do I escape the wildcard/asterisk character in bash?
... the characters
‘\’, ‘'’, and ‘"’ that did not result
from one of the above expansions are
removed.
So what happens is when you type the command directly into the command line, the escape character is not the result of a previous expansion so BASH removes it before sending it to ...
How to use MDC with thread pools?
... like good hygiene, e.g. if the wrap() method were exposed and used by someone else down the road.
– jlevy
Jan 27 '15 at 17:42
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How to handle button clicks using the XML onClick within Fragments
Pre-Honeycomb (Android 3), each Activity was registered to handle button clicks via the onClick tag in a Layout's XML:
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Rails 3: I want to list all paths defined in my rails application
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One more solution is
Rails.application.routes.routes
http://hackingoff.com/blog/generate-rails-sitemap-from-routes/
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Remove leading or trailing spaces in an entire column of data
...a formula like this which replaces any non-breaking spaces with a standard one
=TRIM(CLEAN(SUBSTITUTE(A1,CHAR(160)," ")))
Ron de Bruin has an excellent post on tips for cleaning data here
You can also remove the CHAR(160) directly without a workaround formula by
Edit .... Replace your selected ...
How does “304 Not Modified” work exactly?
...erver.
The browser then sends a request with the If-Modified-Since or If-None-Match header, telling the server to send a 304 if the content still has that date or ETag.
The server needs some way of calculating a date-modified or ETag for each version of each resource; this typically comes from the...