1# @ohos.arkui.node 2 3The **Node** module provides level-2 module APIs of custom nodes to export and use. 4 5> **NOTE** 6> 7> The initial APIs of this module are supported since API version 11. Newly added APIs will be marked with a superscript to indicate their earliest API version. 8> 9> Custom nodes are not available in DevEco Studio Previewer. 10 11## BuilderNode 12 13The [BuilderNode](./js-apis-arkui-builderNode.md#buildernode) module provides APIs for creating a BuilderNode – a custom node that can be used to mount built-in components. Avoid mounting a BuilderNode as a child node to other custom nodes. 14 15**System capability**: SystemCapability.ArkUI.ArkUI.Full 16 17## FrameNode 18 19The [FrameNode](./js-apis-arkui-frameNode.md#framenode) module provides APIs for a FrameNode, which represents an entity node in the component tree. It can be used by a [NodeController](./js-apis-arkui-nodeController.md#nodecontroller) to mount a [BuilderNode](./js-apis-arkui-builderNode.md#buildernode) (that holds the FrameNode) to a [NodeContainer](arkui-ts/ts-basic-components-nodecontainer.md#nodecontainer) or mount a [RenderNode](./js-apis-arkui-renderNode.md#rendernode) to another FrameNode. 20 21**System capability**: SystemCapability.ArkUI.ArkUI.Full 22 23## NodeController 24 25The [NodeController](./js-apis-arkui-nodeController.md#nodecontroller) module provides APIs for managing custom nodes, such as creating, showing, and updating custom nodes, and APIs for mounting custom nodes to a [NodeContainer](arkui-ts/ts-basic-components-nodecontainer.md#nodecontainer) component. 26 27**System capability**: SystemCapability.ArkUI.ArkUI.Full 28 29## Graphics 30 31[Graphics](./js-apis-arkui-graphics.md#graphics) module: provides APIs for defining attributes of a custom node. 32 33**System capability**: SystemCapability.ArkUI.ArkUI.Full 34 35## RenderNode 36 37The [RenderNode](./js-apis-arkui-renderNode.md#rendernode) module provides APIs for creating a RenderNode in custom drawing settings with C APIs. 38 39**System capability**: SystemCapability.ArkUI.ArkUI.Full 40 41## XComponentNode 42 43The [XComponentNode](./js-apis-arkui-xcomponentNode.md#xcomponentnode) module provides APIs a XComponentNode, an **XComponent** in the component tree. You can write EGL/OpenGL ES and media data and display it on the **XComponent**, whose rendering type can be dynamically modified. 44 45**System capability**: SystemCapability.ArkUI.ArkUI.Full 46 47 48 49## Obtaining UI Context 50To obtain the UI context, use any of the following methods: 51 521. Call [getUIContext()](arkts-apis-window-Window.md#getuicontext10) in **ohos.window** to obtain the **UIContext **instance. 53 542. Call the built-in method [getUIContext()](arkui-ts/ts-custom-component-api.md#getuicontext) of the custom component. 55 563. Use the [makeNode](./js-apis-arkui-nodeController.md#makenode) callback of [NodeController](./js-apis-arkui-nodeController.md#nodecontroller). 57