- Making http post requests using okhttp
- getSupportFragmentManager (FragmentActivity)
- runOnUiThread (Activity)
- setRequestProperty (URLConnection)
- FileOutputStream (java.io)
An output stream that writes bytes to a file. If the output file exists, it can
be replaced or appen
- URLConnection (java.net)
A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
- SecureRandom (java.security)
This class generates cryptographically secure pseudo-random numbers. It is best
to invoke SecureRand
- Calendar (java.util)
Calendar is an abstract base class for converting between a Date object and a
set of integer fields
- Cipher (javax.crypto)
This class provides access to implementations of cryptographic ciphers for
encryption and decryption
- JOptionPane (javax.swing)
- Best plugins for Eclipse