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Call an activity method from a fragment
Trying to call a method in my activity from a fragment. I want the fragment to give the method data and to get the data when the method return. I want to achieve similar to call on a static method, but without the use of static because it create problems in the activity.
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Live-stream video from one android phone to another over WiFi
...ed the internet for days now on how to implement a video streaming feature from an android phone to another android phone over a WiFi connection but I can't seem to find anything useful. I looked on android developers for sample code, stackoverflow, google, android blogs but nothing. All I can find ...
How can I remove an element from a list?
I have a list and I want to remove a single element from it. How can I do this?
16 Answers
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Which UUID version to use?
...card. It's not recommended to create these.
Version 4: These are generated from random (or pseudo-random) numbers. If you just need to generate a UUID, this is probably what you want.
If you need to always generate the same UUID from a given name, you want a version 3 or version 5.
Version 3: Th...
How to generate a Dockerfile from an image?
Is it possible to generate a Dockerfile from an image? I want to know for two reasons:
8 Answers
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Origin null is not allowed by Access-Control-Allow-Origin
...ing the SOP to local files are very tight, it disallows even loading files from the same directory as the document. So does Opera. Some other browsers, such as Firefox, allow limited access to local files. But basically, using ajax with local resources isn't going to work cross-browser.
If you're j...
List comprehension: Returning two (or more) items for each item
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>>> from itertools import chain
>>> f = lambda x: x + 2
>>> g = lambda x: x ** 2
>>> list(chain.from_iterable((f(x), g(x)) for x in range(3)))
[2, 0, 3, 1, 4, 4]
Timings:
from timeit import timeit
f...
Retrieve a single file from a repository
...data transferred and disk space used) to get the contents of a single file from a remote git repository?
21 Answers
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Determine distance from the top of a div to top of window with javascript
...elementOffset - scrollTop);
The distance variable now holds the distance from the top of the #my-element element and the top-fold.
Here is a demo: http://jsfiddle.net/Rxs2m/
Note that negative values mean that the element is above the top-fold.
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Deny all, allow only one IP through htaccess
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order deny,allow
deny from all
allow from <your ip>
share
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