Products Google for Education Blockly Reference Blockly Framework Reference BlockView @objcMembers open class BlockView: LayoutView Abstract view for rendering a BlockLayout. Properties blockLayout Layout object to render Declaration Swift open var blockLayout: BlockLayout? Initializers init() Default initializer for block views. Declaration Swift public required init() Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 3.0 License, and code samples are licensed under the Apache 2.0 License. For details, see our Site Policies. Java is a registered trademark of Oracle and/or its affiliates. Last updated December 1, 2017.