What new features and APIs were added in Android version 9.0?

Android 9.0 (Pie) introduced several important innovations and APIs, including:

• Adaptive Battery and Adaptive Brightness — systems that use machine learning to optimize power consumption and screen brightness.
• App Actions — an API for predicting user actions and providing quick access to them.
• Slices — interactive UI components that can be embedded in search and other places.
• Support for multi-camera devices — APIs for working with multiple cameras simultaneously.
• Enhanced Notifications — improved notifications with support for images, actions, and conversations.
• Privacy improvements — restrictions on access to microphone, camera, and sensors in the background.
• TLS 1.3 — support for the new security standard for network connections.

Example of using the multi-camera API:

CameraManager manager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);
String[] cameraIdList = manager.getCameraIdList();
// You can open multiple cameras at once if the device supports it