ViewfinderSurfaceRequest
@RequiresApi(value = 21)
public class ViewfinderSurfaceRequest
The request to get a Surface to display camera feed.
This request contains requirements for the surface resolution and camera device information from CameraCharacteristics.
Calling requestSurfaceAsync with this request will send the request to the surface provider, which is either a TextureView or SurfaceView and get a ListenableFuture of Surface.
Calling markSurfaceSafeToRelease will notify the surface provider that the surface is not needed and related resources can be released.
Summary
Nested types |
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public final class ViewfinderSurfaceRequest.BuilderThis class is deprecated. Use |
Public methods |
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@Nullable CameraViewfinder.ImplementationMode |
Returns the |
int |
Returns the camera lens facing. |
@NonNull Size |
Returns the resolution of the requested |
int |
Returns the sensor orientation. |
void |
Closes the viewfinder surface to mark it as safe to release. |
Protected methods |
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void |
finalize() |
Public methods
getImplementationMode
public @Nullable CameraViewfinder.ImplementationMode getImplementationMode()
Returns the androidx.camera.viewfinder.CameraViewfinder.ImplementationMode.
The value is set by setImplementationMode.
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@Nullable CameraViewfinder.ImplementationMode |
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getLensFacing
public int getLensFacing()
Returns the camera lens facing.
The value is set by setLensFacing, which can be retrieved from CameraCharacteristics by key LENS_FACING.
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int |
The lens facing. |
getResolution
public @NonNull Size getResolution()
Returns the resolution of the requested Surface.
The value is set by Builder. The surface which fulfills this request must have the resolution specified here in order to fulfill the resource requirements of the camera.
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setDefaultBufferSize |
getSensorOrientation
public int getSensorOrientation()
Returns the sensor orientation.
The value is set by setSensorOrientation, which can be retrieved from CameraCharacteristics by key SENSOR_ORIENTATION.
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int |
The sensor orientation. |
markSurfaceSafeToRelease
public void markSurfaceSafeToRelease()
Closes the viewfinder surface to mark it as safe to release.
This method should be called by the user when the requested surface is not needed and related resources can be released.