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Does .NET have a way to check if List a contains all items in List b?
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If you're using .NET 3.5, it's easy:
public class ListHelper<T>
{
public static bool ContainsAllItems(List<T> a, List<T> b)
{
return !b.Except(a).Any();
}
}
This checks whether there a...
Changing ImageView source
...ble.monkey));
*** With new android API 22 getResources().getDrawable() is now deprecated. This is an example how to use now:
myImgView.setImageDrawable(getResources().getDrawable(R.drawable.monkey, getApplicationContext().getTheme()));
and how to validate for old API versions:
if (Build.VERSION.SD...
How to display count of notifications in app launcher icon [duplicate]
...tandard API for this and I want to say it is a bad practice. App's icon notification badge is an iOS pattern and it should not be used in Android apps anyway. In Andrioid there is a status bar notifications for these purposes:http://developer.android.com/guide/topics/ui/notifiers/notifications.html ...
Java - sending HTTP parameters via POST method easily
... : 'url.openconnection()' does not open connection. In case you do not specify a connect() statement the connection is opened when you write to to the http request body /heared and send it. I have tried this with certificates. The ssl handshake takes place only after you call connect or when you sen...
Best way to create unique token in Rails?
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-- Update --
As of January 9th, 2015. the solution is now implemented in Rails 5 ActiveRecord's secure token implementation.
-- Rails 4 & 3 --
Just for future reference, creating safe random token and ensuring it's uniqueness for the model (when using Ruby 1.9 and ActiveR...
How to get std::vector pointer to the raw data?
... The advantage of this member function is that it is okay to call it even if the container is empty.
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How to initialize log4j properly?
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Will cause log4j to look for a file called customName on the classpath.
If you are having problems I find it helpful to turn on the log4j.debug:
-Dlog4j.debug
It will print to System.out lots of helpful information about which file it used to initialize itself, which loggers / appenders got co...
How does the vim “write with sudo” trick work?
... knows which file to overwrite.
(In substitution commands, it's slightly different; as :help :% shows, it's equal to 1,$ (the entire file) (thanks to @Orafu for pointing out that this does not evaluate to the filename). For example, :%s/foo/bar means "in the current file, replace occurrences of foo...
Java8 Lambdas vs Anonymous classes
... its brand new lambda expressions looks to be really cool, I was wondering if this means the demise of the Anonymous classes that we were so used to.
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What is the difference between a shim and a polyfill?
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Shim
If you are familiar with the adapter pattern, then you know what a shim is. Shims intercepts API calls and creates an abstract layer between the caller and the target. Typically shims are used for backward compability. For instance the es5-shim npm package will let you write ECMAS...