CameraInfo
public
interface
CameraInfo
| androidx.camera.core.CameraInfo |
An interface for retrieving camera information.
Applications can retrieve an instance via Camera.getCameraInfo().
Summary
Public methods | |
|---|---|
abstract
int
|
getSensorRotationDegrees()
Returns the sensor rotation in degrees, relative to the device's "natural" (default) orientation. |
abstract
int
|
getSensorRotationDegrees(int relativeRotation)
Returns the sensor rotation, in degrees, relative to the given rotation value. |
abstract
LiveData<Integer>
|
getTorchState()
Returns a |
abstract
LiveData<ZoomState>
|
getZoomState()
|
abstract
boolean
|
hasFlashUnit()
Returns if flash unit is available or not. |
Public methods
getSensorRotationDegrees
public abstract int getSensorRotationDegrees ()
Returns the sensor rotation in degrees, relative to the device's "natural" (default) orientation.
| Returns | |
|---|---|
int |
The sensor rotation in degrees, relative to device's "natural" (default) orientation. |
See also:
getSensorRotationDegrees
public abstract int getSensorRotationDegrees (int relativeRotation)
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_90, Surface.ROTATION_180, Surface.ROTATION_270.
| Parameters | |
|---|---|
relativeRotation |
int: The rotation relative to which the output will be calculated. |
| Returns | |
|---|---|
int |
The sensor rotation in degrees. |
getTorchState
public abstract LiveData<Integer> getTorchState ()
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.
| Returns | |
|---|---|
LiveData<Integer> |
a LiveData containing current torch state.
|
getZoomState
public abstract LiveData<ZoomState> getZoomState ()
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.
| Returns | |
|---|---|
LiveData<ZoomState> |
|
hasFlashUnit
public abstract boolean hasFlashUnit ()
Returns if flash unit is available or not.
| Returns | |
|---|---|
boolean |
|