What are the file features used in android?

Submitted by: Murtaza
Android is rich in file features and it provides lots of variations in them as well. The file features are as follows:
Intent filters:
Includes bundle of information which describes a desired action.
Icons and Labels:
Includes information for small icon and a text label that can be displayed to users. These are set for an intent filter and are used to represent a component which fulfills the function advertised by the filter.
Permissions:
It is a restriction or limitation access to a part of code or data on the device. It is given as:-android.permission.CALL_EMERGENCY_NUMBERS
Libraries:
It includes the basic packages for building and developing applications.
Submitted by: Murtaza

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