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How many Activities vs Fragments?
...Also what I have read about the ActionBarSherlock is that it seems to work best with Fragments instead of Activities (but I have not worked with it yet).
ActionBarSherlock has no more to do with fragments than does the native action bar, since ActionBarSherlock is purely a backport of the native a...
How to return dictionary keys as a list in Python?
...no function call is actually performed:
%timeit [*newdict]
1000000 loops, best of 3: 249 ns per loop
%timeit list(newdict)
1000000 loops, best of 3: 508 ns per loop
%timeit [k for k in newdict]
1000000 loops, best of 3: 574 ns per loop
with larger dictionaries the speed is pretty much the same ...
In Java, when should I create a checked exception, and when should it be a runtime exception? [dupli
...
In general, I think the advice by Joshua Bloch in Effective Java best summarises the answer to your question: Use checked expections for recoverable conditions and runtime exceptions for programming errors (Item 58 in 2nd edition).
So in this case, if you really want to use exceptions, i...
Match everything except for specified strings
...see demo)
vb.net - Regex.Split(text, "red|green|blue") or, to remove empty items, Regex.Split(text, "red|green|blue").Where(Function(s) Not String.IsNullOrWhitespace(s)) (see demo, or this demo where LINQ is supported)
javascript - text.split(/red|green|blue/) (no need to use g modifier here!) (to g...
Iterate through pairs of items in a Python list [duplicate]
...a stream of data (i.e. array access); rather, it only needs to ingest each item once, and caches it for the next evaluation. So if you have, say, a Twitter firehose, you don't ever need to read the firehose into a gigantic (perhaps infinite-length) array for this to work.
– bto...
Setting Android Theme background color
... one styles.xml, in the 'values' folder. My problem was that I had a theme item for the Activity in the manifest file (which of course overrode the AppTheme).
– Stephen Hosking
Apr 10 '13 at 9:00
...
SearchView's OnCloseListener doesn't work
...ave no choice but give up "oncloselistener". Instead, you can get your menuItem, then setOnActionExpandListener. Then override unimplents methods.
@Override
public boolean onMenuItemActionExpand(MenuItem item) {
// TODO Auto-generated method stub
Log.d("*******","onMenuItemActionExpand");
...
How to set Bullet colors in UL/LI html lists via CSS without using any images or span tags [duplicat
...y that base64 images don't work in IE7 either... otherwise it would be the best solution...
– Diego
Sep 30 '13 at 16:17
1
...
Django template how to look up a dictionary value with a variable
...m django.template.defaulttags import register
...
@register.filter
def get_item(dictionary, key):
return dictionary.get(key)
(I use .get so that if the key is absent, it returns none. If you do dictionary[key] it will raise a KeyError then.)
usage:
{{ mydict|get_item:item.NAME }}
...
Android - Back button in the title bar
...e aware that, when you actually click on the application icon, an onOptionsItemSelected method is called. So to go back to the previous activity, add that method to your activity and put Intent code in it that will return you to the previous activity. For example, let's say the activity you are try...