React
Base node class for representing virtual tree of React nodes. Shadow nodes are used primarily for layouting therefore it extends YogaNode to allow that. They also help with handling Common base subclass of YogaNode for all layout nodes for react-based view. It extends YogaNode by adding additional capabilities.
Instances of this class receive property updates from JS via @{link UIManagerModule}. Subclasses may use updateShadowNode to persist some of the updated fields in the node instance that corresponds to a particular view type.
Subclasses of ReactShadowNode should be created only from ViewManager that corresponds to a certain type of native view. They will be updated and accessed only from JS thread. Subclasses of ViewManager may choose to use base class ReactShadowNode or custom subclass of it if necessary.
The primary use-case for ReactShadowNode nodes is to calculate layouting. Although this might be extended. For some examples please refer to ARTGroupYogaNode or ReactTextYogaNode.
This class allows for the native view hierarchy to not be an exact copy of the hierarchy received from JS by keeping track of both JS children (e.g. getChildCount and separately native children (e.g. getNativeChildCount). See for more information.
Inheritors
Functions
true will be treated as leaves.true will be treated as a root view for the virtual nodes tree.true will not manage (and and remove) child Yoga nodes.