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How do I use extern to share variables between source files?
I know that global variables in C sometimes have the extern keyword. What is an extern variable? What is the declaration like? What is its scope?
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Remove shadow below actionbar
...t;@null</item> in your application theme. I had the similar problem. Now I've both of them. setElevation from and added windowContentOverlay item in application theme. setElevation works for android 5.0 and up while the other works for pre-lollipop. Cheers!
– Reaz Murshed...
Why use argparse rather than optparse?
...er command-line parsing module. In addition to getopt and optparse we now have argparse .
5 Answers
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Fully custom validation error message with Rails
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Now, the accepted way to set the humanized names and custom error messages is to use locales.
# config/locales/en.yml
en:
activerecord:
attributes:
user:
email: "E-mail address"
errors:
models:
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android View not attached to window manager
... thread which survives the activity restart and may hold references to the now dead Activity and its Views (this is a effectively a memory leak, albeit probably a short term one - depends how long the task takes to complete). The solution above works fine, if you're happy to accept a short term mem...
Android YouTube app Play Video Intent
I have created a app where you can download YouTube videos for android. Now, I want it so that if you play a video in the YouTube native app you can download it too. To do this, I need to know the Intent that the YouTube native app puts out in order to play the YouTube app.
I could do this easiall...
How to set a value of a variable inside a template code?
...rary()
@register.assignment_tag
def get_addressee():
return "World"
Now you may use the get_addressee template tag in your templates:
{% load hello_world %}
{% get_addressee as addressee %}
<html>
<body>
<h1>hello {{addressee}}</h1>
</body>
<...
How to check for a valid Base64 encoded string
...ing. I updated my question with an implementation of the solution let me know if you see any problems with it.
– Chris Mullins
Jun 10 '11 at 18:05
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bash/fish command to print absolute path to a file
...will still give you a valid path given some relative path. If you want to know about file existence use another tool like e.g. test.
– Benjamin Bannier
Feb 27 '13 at 17:47
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convert a JavaScript string variable to decimal/money
...parseFloat(document.getElementById(amtid4).innerHTML).toFixed(2);
num is now a string with the number formatted with two decimal places.
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