What is the different between Explicit and implicit activity call in android?

Question

What is the difference between explicit and implicit activity call in android? If you explain the answer with a simple example will be good.

Answer 1

See Intent Resolution here

http://developer.android.com/guide/topics/intents/intents-filters.html

Explicit intents (activities) refer to a specific class, and in general, are only available to your packages. Implicit intents refer to intent filters where apps publicly announce that they can handle certain types of data or can provide specific services, e.g. send an email. With implicit intents, the users chooses which activity (typically a package) to use to handle the intent or if a default handler is set, it is launched.