CameraInfo
interface CameraInfo
| androidx.camera.core.CameraInfo |
An interface for retrieving camera information.
Applications can retrieve an instance via Camera#getCameraInfo().
Summary
| Public methods | |
|---|---|
| abstract ExposureState |
Returns a |
| abstract Int |
Returns the sensor rotation in degrees, relative to the device's "natural" (default) orientation. |
| abstract Int |
getSensorRotationDegrees(relativeRotation: Int)Returns the sensor rotation, in degrees, relative to the given rotation value. |
| abstract LiveData<Int!> |
Returns a |
| abstract LiveData<ZoomState!> | |
| abstract Boolean |
Returns if flash unit is available or not. |
Public methods
getExposureState
@NonNull abstract fun getExposureState(): ExposureState
Returns a ExposureState.
The ExposureState contains the current exposure related information.
getSensorRotationDegrees
abstract fun getSensorRotationDegrees(): Int
Returns the sensor rotation in degrees, relative to the device's "natural" (default) orientation.
| Return | |
|---|---|
Int |
The sensor rotation in degrees, relative to device's "natural" (default) orientation. |
See Also
getSensorRotationDegrees
abstract fun getSensorRotationDegrees(relativeRotation: Int): Int
Returns the sensor rotation, in degrees, relative to the given rotation value.
Valid values for the relative rotation are Surface#ROTATION_0 (natural), , Surface#ROTATION_180, Surface#ROTATION_270.
| Parameters | |
|---|---|
relativeRotation |
Int: The rotation relative to which the output will be calculated. |
| Return | |
|---|---|
Int |
The sensor rotation in degrees. |
getTorchState
@NonNull abstract fun getTorchState(): LiveData<Int!>
Returns a LiveData of current TorchState.
The torch can be turned on and off via CameraControl#enableTorch(boolean) which will trigger the change event to the returned LiveData. Apps can either get immediate value via LiveData#getValue() or observe it via LiveData#observe(LifecycleOwner, Observer) to update torch UI accordingly.
If the camera doesn't have a flash unit (see hasFlashUnit()), then the torch state will be TorchState#OFF.
| Return | |
|---|---|
LiveData<Int!> |
a LiveData containing current torch state. |
getZoomState
@NonNull abstract fun getZoomState(): LiveData<ZoomState!>
Returns a LiveData of ZoomState.
The LiveData will be updated whenever the set zoom state has been changed. This can occur when the application updates the zoom via CameraControl#setZoomRatio(float) or CameraControl#setLinearZoom(float). The zoom state can also change anytime a camera starts up, for example when a UseCase is bound to it.