Method snapshot

valdi/src/java/com/snap/valdi/ViewRef.kt:280–322

        }
    }

    @Keep
    fun snapshot(callback: ValdiFunction) {
        var bitmap: BitmapHandler? = null

        fun handleError() {
            ValdiMarshaller.use {
                it.pushUndefined()
                callback.perform(it)
            }
            bitmap?.release()
        }

        val view = get() ?: return handleError()

        val width = view.width
        val height = view.height

        if (width < 1 || height < 1) {
            return handleError()
        }

        try {
            val renderCanvas = this.support.getRenderCanvas()

            bitmap = this.support.bitmapPool.get(width, height) ?: return handleError()

            drawViewInCanvas(renderCanvas, bitmap.getBitmap(), view, null, true)

            val output = ByteArrayOutputStream()

            this.support.getSnapshotExecutor().submit {
                bitmap.getBitmap().compress(Bitmap.CompressFormat.PNG, 0, output)
                ValdiMarshaller.use {
                    it.pushByteArray(output.toByteArray())
                    callback.perform(it)
                }
                bitmap?.release()
            }
        } catch (exc: Exception) {
            this.support.logger.log(LogLevel.ERROR, exc, "Failed to take Snapshot of view with size ${width}x${height}")
            handleError()
        }
    }

    @Keep