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Install Application programmatically on Android
I'm interested in knowing if it is possible to programmatically install a dynamically downloaded apk from a custom Android application.
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Preserving order with LINQ
... array.
Which operations shouldn't I do to be sure the order of the array is not changed?
6 Answers
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How to repeat last command in python interpreter shell?
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I use the following to enable history on python shell.
This is my .pythonstartup file . PYTHONSTARTUP environment variable is set to this file path.
# python startup file
import readline
import rlcompleter
import atexit
import os
# tab completion
r...
ARC and bridged cast
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I agree that the description is confusing. Since I just grasped them, I'll try to summarize:
(__bridge_transfer <NSType>) op or alternatively CFBridgingRelease(op) is used to consume a retain-count of a CFTypeRef while transferring it over to ARC...
Why are regular expressions so controversial? [closed]
When exploring regular expressions (otherwise known as RegEx-es), there are many individuals who seem to see regular expressions as the Holy Grail. Something that looks so complicated - just must be the answer to any question. They tend to think that every problem is solvable using regular express...
Spring - @Transactional - What happens in background?
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This is a big topic. The Spring reference doc devotes multiple chapters to it. I recommend reading the ones on Aspect-Oriented Programming and Transactions, as Spring's declarative transaction support uses AOP at its foundation...
R script line numbers at error?
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This won't give you the line number, but it will tell you where the failure happens in the call stack which is very helpful:
traceback()
[Edit:] When running a script from the command line you will have to skip one or two ca...
Unable to find specific subclass of NSManagedObject
...odule name to the class (as in Xcode 6 and early beta releases of Xcode 7) is no longer necessary.
The Apple documentation Implementing Core Data Managed Object Subclasses has been
updated accordingly.
The Data Model inspector
has now two fields "Class" and "Module" for an entity:
When you crea...
What's the difference between := and = in Makefile?
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This is described in the GNU Make documentation, in the section titled 6.2 The Two Flavors of Variables
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In short, variables defined with := are expanded once, but variables defined with = are expanded whenever they are used....
How can I convert an RGB image into grayscale in Python?
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edited Mar 18 '19 at 12:02
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