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Android destroying activities, killing processes
...e.
If an activity is paused or stopped, the system can drop the activity from memory by either asking it to finish, or simply killing
its process. When it is displayed again to the user, it must be
completely restarted and restored to its previous state.
And, for the process lifecycle:
...
What is the maximum length of latitude and longitude? [closed]
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Valid longitudes are from -180 to 180 degrees.
Latitudes are supposed to be from -90 degrees to 90 degrees, but areas very near to the poles are not indexable.
So exact limits, as specified by EPSG:900913 / EPSG:3785 / OSGEO:41001 are the follo...
Content-Disposition:What are the differences between “inline” and “attachment”?
... Just a quick correction: This behavior is sometimes different from a mobile context. Many app webviews will ignore attachment disposition and simply render it in browser if they can correctly identify the content-type.
– mixdev
Oct 9 '13 at 15:55
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Why does PHP 5.2+ disallow abstract static class methods?
...ling strict warnings in PHP 5.2, I saw a load of strict standards warnings from a project that was originally written without strict warnings:
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Circular list iterator in Python
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Use itertools.cycle, that's its exact purpose:
from itertools import cycle
lst = ['a', 'b', 'c']
pool = cycle(lst)
for item in pool:
print item,
Output:
a b c a b c ...
(Loops forever, obviously)
In order to manually advance the iterator and pull values fro...
Fragments onResume from back stack
...cation mechanism Creating event callbacks to the activity. To quote a line from it:
A good way to do that is to define a callback interface inside the fragment and require that the host activity implement it. When the activity receives a callback through the interface, it can share the informati...
What does `someObject.new` do in Java?
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It's the way to instantiate a non-static inner class from outside the containing class body, as described in the Oracle docs.
Every inner class instance is associated with an instance of its containing class. When you new an inner class from within its containing class it use...
How to make a programme continue to run after log out from ssh? [duplicate]
...ble to expand it out to show a brief example of how to use screen, perhaps from the originally linked example (still available at web.archive.org/web/20090106170543/http://www.rackaid.com/…)?
– josliber♦
Dec 21 '15 at 5:16
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Comparing two dataframes and getting the differences
...asy way to add a flag to this to see which rows were removed/added/changed from df1 to df2?
– pyCthon
Nov 23 '15 at 20:07
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JavaScript “new Array(n)” and “Array.prototype.map” weirdness
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From MDC (emphasis mine): "map calls a provided callback function once for each element in an array, in order, and constructs a new array from the results. callback is invoked only for indexes of the array which have assigned...