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Force Screen On
... additional permission, and it is very easy to introduce bugs where you accidentally remain holding the wake lock and thus leave the screen on.
It is far, far better to use the window flag FLAG_KEEP_SCREEN_ON, which you can enable on your activity's window in your onCreate() like this:
@Override
pro...
What's wrong with overridable method calls in constructors?
...
On invoking overridable method from constructors
Simply put, this is wrong because it unnecessarily opens up possibilities to MANY bugs. When the @Override is invoked, the state of the object may be inconsistent and/or incomplete.
A quote f...
How to use android emulator for testing bluetooth application?
...he code is working fine for real devices, but I want to run it on the Android Emulator. How can I use the emulator for bluetooth testing?
...
IISExpress Log File Location
...running IIS Express from command line, you can use '/config' switch to provide configuration file of your choice. Following link may help you http://learn.iis.net/page.aspx/870/running-iis-express-from-the-command-line/
shar...
str performance in python
...09341430664
Do note that str is still slightly slower, as @DietrichEpp said, this is because str involves lookup and function call operations, while % compiles to a single immediate bytecode:
>>> dis.dis(lambda x: str(x))
9 0 LOAD_GLOBAL 0 (str)
3 L...
How can I install an older version of a package via NuGet?
...ecause 'twitterizer 2.4.0.26532' depends on it.
– Nebide Yildiz
Apr 19 '12 at 5:41
9
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Passing a list of kwargs?
...='bar')
method(**keywords)
Running this in Python confirms these produce identical results:
{'keyword2': 'bar', 'keyword1': 'foo'}
{'keyword2': 'bar', 'keyword1': 'foo'}
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How to set 'auto' for upper limit, but keep a fixed lower limit with matplotlib.pyplot
... Same issue as @Elliot here. Can be fixed by setting the (one-sided) ylim/xlim after ploting the values.
– fabianfuchs
Mar 30 '15 at 16:13
6
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Overloaded method selection based on the parameter's real type
...
I expect the method selection to take
in consideration the real (not the
declared) parameter type. Am I missing
something?
Yes. Your expectation is wrong. In Java, dynamic method dispatch happens only for the object the method is called on, not for the parameter t...
What's the difference between the build and create methods in FactoryGirl?
...es not persist to the db and does not call save!, so your Active Record validations will not run. This is much faster, but validations might be important.
Using FactoryGirl.create(:factory_name) will persist to the db and will call Active Record validations. This is obviously slower but can catch v...