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Check if application is installed - Android
...context.getPackageManager();
boolean isInstalled = isPackageInstalled("com.somepackage.name", pm);
// ...
}
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What is the use of static constructors?
...ally by the runtime the first time it is needed (the exact rules there are complicated (see "beforefieldinit"), and changed subtly between CLR2 and CLR4). Unless you abuse reflection, it is guaranteed to run at most once (even if two threads arrive at the same time).
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HTTP 1.0 vs 1.1
...the protocol version.
Example:
GET / HTTP/1.1
Host: www.blahblahblahblah.com
This header is useful because it allows you to route a message through proxy servers, and also because your web server can distinguish between different sites on the same server.
So this means if you have blahblahlbah....
Python 3 ImportError: No module named 'ConfigParser'
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In Python 3, ConfigParser has been renamed to configparser for PEP 8 compliance. It looks like the package you are installing does not support Python 3.
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Calling startActivity() from outside of an Activity?
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Hard reset of a single file
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You can use the following command:
git checkout HEAD -- my-file.txt
... which will update both the working copy of my-file.txt and its state in the index with that from HEAD.
-- basically means: treat every argument after this point as a file name...
Different names of JSON property during serialization and deserialization
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Streaming Audio from A URL in Android using MediaPlayer?
...se;
private MediaPlayer mediaPlayer;
/**
* remain false till media is not completed, inside OnCompletionListener make it true.
*/
private boolean intialStage = true;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout...
How to change background color in android app
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