React
View manager for ReactModalHostView components.
Functions
Adds a child view into the parent at the index specified as a parameter
Convenience method for batching a set of addView calls Note that this adds the views to the beginning of the ViewGroup
Return true if you intend to override some other native module that was registered e.g. as part of a different package (such as the core one). Trying to override without returning true from this method is considered an error and will throw an exception during initialization. By default all modules return false.
This method should return a subclass of ReactShadowNode which will be then used for measuring position and size of the view. In most of the cases this should just return an instance of ReactShadowNode
Creates a view with knowledge of props and state.
THIS PREFETCH METHOD IS EXPERIMENTAL, DO NOT USE IT FOR PRODUCTION CODE, MOST LIKELY IT WILL CHANGE OR BE REMOVED IN THE FUTURE.
Return the amount of children contained by the view specified as a parameter.
Subclasses of ViewManager that expect to receive commands through dispatchViewManagerCommand should override this method returning the map between names of the commands and IDs that are then used in receiveCommand method whenever the command is dispatched for this particular ViewManager.
Override this method and return an instance of ViewManagerDelegate if the props of the view managed by this view manager should be set via this delegate. The provided instance will then get calls to setProperty for every prop that must be updated and it's the delegate's responsibility to apply these values to the view.
Returns a map of config data passed to JS that defines eligible events that can be placed on native views. This should return bubbling directly-dispatched event types and specify what names should be used to subscribe to either form (bubbling/capturing).
Returns a map of config data passed to JS that defines eligible events that can be placed on native views. This should return non-bubbling directly-dispatched event types.
Returns a map of view-specific constants that are injected to JavaScript. These constants are made accessible via UIManager..Constants.
Returns a , representing the native props of the view manager. The Map contains the names (key) and types (value) of the ViewManager's props.
This method should return Class instance that represent type of shadow node that this manager will return from createShadowNodeInstance.
This method is called after ReactApplicationContext has been created.
Allow NativeModule to clean up. Called before React Native instance is destroyed.
Subclasses can override this method to implement custom measure functions for the ViewManager
THIS MEASURE METHOD IS EXPERIMENTAL, MOST LIKELY YOU ARE LOOKING TO USE THE OTHER OVERLOAD INSTEAD: measure
Returns whether this View type needs to handle laying out its own children instead of deferring to the standard css-layout algorithm. Returns true for the layout to not be automatically invoked. Instead onLayout will be invoked as normal and it is the View instance's responsibility to properly call layout on its children. Returns false for the default behavior of automatically laying out children without going through the ViewGroup's onLayout method. In that case, onLayout for this View type must not call layout on its children.
Allow NativeModule to clean up. Called before {CatalystInstance#onHostDestroy}
Called when view is detached from view hierarchy and allows for some additional cleanup by the ViewManager subclass.
Lifecycle method: called when a surface is stopped. Currently only used for View Recycling cleanup. There is no corresponding startSurface lifecycle event for ViewManagers because we currently only need this for recycling cleanup. Only called in Fabric.
Subclasses may use this method to receive events/commands directly from JS through the . Good example of such a command would be scrollTo request with coordinates for a ScrollView instance.
Subclasses may use this method to receive events/commands directly from JS through the . Good example of such a command would be scrollTo request with coordinates for a ReactScrollView instance.
Remove all child views from the parent View.
Removes View from the parent View at the index specified as a parameter.
Subclasses can override this method to set padding for the given View in Fabric. Since not all components support setting padding, the default implementation of this method does nothing.
Subclasses can implement this method to receive an optional extra data enqueued from the corresponding instance of ReactShadowNode in onCollectExtraUpdates.
For the vast majority of ViewManagers, you will not need to override this. Only override this if you really know what you're doing and have a very unique use-case.
Subclasses can implement this method to receive state updates shared between all instances of this component type.