io.scanbot.sdk.camera

Interface PreviewBuffer

public PreviewBuffer

Manages access to preview buffer of the Camera

Method Detail

addFrameHandler

void addFrameHandler(@NotNull
                     FrameHandler frameHandler)

Registers interface FrameHandler which will receive preview frames from camera.

Note, that handlers can intercept frame by returning true from FrameHandler.handleFrame. In such case no other handler will receive callbacks for current frame. Therefore, order in which handlers are added matters.

All callbacks are invoked from the worker thread, so it is safe to perform "heavy" operations.

Parameters:

frameHandler - handler which will receive preview frames. Must not be null. Ifit was already registered before, nothing happens.

See Also:

interface FrameHandler, FrameHandler.handleFrame

removeFrameHandler

void removeFrameHandler(@NotNull
                        FrameHandler frameHandler)

Unregisters interface FrameHandler.

Parameters:

frameHandler - handler to unregister. If it was not registered before, nothing happens.

See Also:

interface FrameHandler

getAttachedFrameHandler

@Nullable
<T extends FrameHandler> T getAttachedFrameHandler(@NotNull
                                                             java.lang.Class<T> clazz)

Check whether there is same class of interface FrameHandler attached to the view return object of the same class if exists otherwise null

See Also:

interface FrameHandler, null