Can you name the main services and components used in Android development?

In Android development, the main services and components are:

• Activity — a user interface screen with which the user interacts.
• Service — a component for performing background tasks without a user interface.
• Broadcast Receiver — receives and processes system or user broadcast messages.
• Content Provider — provides access to application data for other applications.

Also important are:

• Fragments — parts of the interface within an Activity, allowing for a responsive UI.
• Intents — messages for launching components or passing data between them.

In the context of Flutter, which is used for cross-platform development, these components are implemented through widgets and plugins, but understanding Android components is useful for integration with native code.