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onSaveInstanceState () and onRestoreInstanceState ()
...activity in front of yours and at some point the OS kills your activity in order to free memory (for example). Next time when you start your activity onRestoreInstanceState() will be called.
In contrast: if you are in your activity and you hit Back button on the device, your activity is finish()ed...
How to sort an array of integers correctly
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Why a-b and not a>b. I suggest the last one in order to avoid operation machine errors
– Luca Davanzo
Apr 2 '15 at 13:46
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How to submit a form with JavaScript by clicking a link?
...t;a href="#">submit</a>
Apply the aforementioned techniques in order to add an event listener.
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WPF vs Silverlight [duplicate]
...xposed via APIs) that .NET Framework 3.0 and above users have access to in order to draw to the screen.
Many of the WPF APIs are available for Silverlight apps.
There are, of course many other APIs besides WPF that are available under Silverlight since SL apps will need to do a lot more than j...
Undefined method 'task' using Rake 0.9.0
...here is a problem in Rake 0.9.0. You need to temporarily downgrade Rake in order to avoid it:
run: gem uninstall rake -v 0.9 (add sudo unless you use rvm)
add to your Gemfile: gem 'rake', '~> 0.8.7'
and then run: bundle update
You can skip the first step, but then you have to run rake using b...
How to save a Python interactive session?
... Use "ipython -i [filename]" on the saved .py file, from the bash promt in order to load the file back before returning to an interactive console! (without the -i flag you don't get the interactive console after running the file).
– Samuel Lampa
Nov 29 '12 at 1...
Proper Repository Pattern Design in PHP?
...nterface. This will define the "contract" that repositories must follow in order to be used by my controller. Remember, my controller will not know where the data is actually stored.
Note that my repositories will only every contain these three methods. The save() method is responsible for both cre...
How to get the request parameters in Symfony 2?
... Answer is correct $request->get('foo'); works for ALL bags (order is : PATH, GET, POST). Nevertheless, $request->request->get('foo'); works only for POST bag. Finally, the first one ($request->get()) is not recommended if we know where the data is (GET/POST).
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Elegant way to search for UTF-8 files with BOM?
...recursively search a directory for all files which start with a UTF-8 byte order mark (BOM). My current solution is a simple shell script:
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Difference between encoding and encryption
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Encryption:
Purpose: The purpose of encryption is to transform data in order to keep it secret from others.
Used for: Maintaining data confidentiality i.e., to ensure the data cannot be consumed by anyone other than the intended recipient(s).
Data Retrieval Mechanism: Original data can be obtain...