target

PropTypes.string

Name of the image target created with ViroARTrackingTargets.

dragPlane

PropTypes.shape({
planePoint:PropTypes.arrayOf(PropTypes.number),
planeNormal:PropTypes.arrayOf(PropTypes.number),
maxDistance:PropTypes.number
})

When a drag type of "FixedToPlane" is given, dragging is limited to a user defined plane. The dragging behavior is then configured by this property (specified by a point on the plane and its normal vector). You can also limit the maximum distance the dragged object is allowed to travel away from the camera/controller (useful for situations where the user can drag an object towards infinity).

dragType

PropTypes.oneOf(["FixedDistance", "FixedToWorld"])

Determines the behavior of drag if onDrag is specified.

The default value is "FixedDistance".

ignoreEventHandling

PropTypes.bool

When set to true, this control will ignore events and not prevent controls behind it from receiving event callbacks.

The default value is false.

onAnchorFound

PropTypes.func

Called when this component is anchored to a plane that is at least minHeight by minWidth large. This is when the component is made visible.

onAnchorRemoved

PropTypes.func

Called when this component is detached from a plane and is no longer visible.

onAnchorUpdated

PropTypes.func

Called when the anchor is update. For image markers, there's additional information provided in the returned anchor.

onClick

PropTypes.func

Called when a marker has been clicked.

Example code:

_onClick(position, source)  {
    // user has clicked the object
}

The position parameter represents the position in world coordinates on the marker where the click occurred.

For the mapping of sources to controller inputs, see the Events section.

onClickState

PropTypes.func

Called for each click state an object goes through as it is clicked. Supported click states and their values are the following:

Example code:

_onClickState(stateValue, position, source)  {
    if(stateValue == 1) {
        // Click Down
    } else if(stateValue == 2) {
        // Click Up
    } else if(stateValue == 3) { 
        // Clicked
    }
}

The position parameter represents the position in world coordinates on the marker where the click occurred.

For the mapping of sources to controller inputs, see the Events section.

onCollision

React.PropTypes.func

Called when this component's physics body collides with another component's physics body. Also invoked by ViroScene/ViroARScene's findCollisions... functions.

onDrag

PropTypes.func

Called when the view is currently being dragged. The dragToPos parameter provides the current 3D location of the dragged object.

Example code:

_onDrag(dragToPos, source)  {
    // dragtoPos[0]: x position
    // dragtoPos[1]: y position
    // dragtoPos[2]: z position
}

For the mapping of sources to controller inputs, see the Events section.

Unsupported VR Platforms: Cardboard iOS

onFuse

PropTypes.oneOfType

PropTypes.oneOfType([
      React.PropTypes.shape({
        callback: React.PropTypes.func.isRequired,
        timeToFuse: PropTypes.number
      }),
      React.PropTypes.func,
])

As shown above, onFuse takes one of the types - either a callback, or a dictionary with a callback and duration.

It is called after the user hovers onto and remains hovered on the control for a certain duration of time, as indicated in timeToFuse that represents the duration of time in milliseconds.

While hovering, the reticle will display a count down animation while fusing towards timeToFuse.

Note that timeToFuse defaults to 2000ms.

For example:

_onFuse(source){
   // User has hovered over object for timeToFuse milliseconds
}

For the mapping of sources to controller inputs, see the Events section.

onHover

PropTypes.func
Function to be invoked when the user hovers on or off the container view. If defined, this is only invoked if the child hovered upon doesn't have onHover defined.

For instance, let's say you have a <ViroFlexView> that contains a few buttons and text. If none of them have a onHover handler defined, and they get hovered upon, then this function will invoke, effectively capturing the onHover event from it's children.

For example:

_onHover(isHovering, position, source)  {
    if(isHovering) {
        // user is hovering on the container view.
    } else {
        // user is no longer hovering on the container view.
    }
}

The position parameter represents the position in world coordinates on the marker where the click occurred.

For the mapping of sources to controller inputs, see the Events section.

onPinch

PropTypes.func

Called when the user performs a pinch gesture on the control. When the pinch starts, the scale factor is set to 1 is relative to the points of the two touch points.

For example:

  _onPinch(pinchState, scaleFactor, source) {
       if(pinchState == 3) {
      // update scale of obj by multiplying by scaleFactor  when pinch ends.
        return;
       }
     //set scale using native props to reflect pinch.
  }

pinchState can be the following values:

This event is only available in AR.

onRotate

PropTypes.func

Called when the user performs a rotation touch gesture on the control. Rotation factor is returned in degrees.

When setting rotation, the rotation should be relative to it's current rotation, not set to the absolute value of the given rotationFactor.

For example:

    _onRotate(rotateState, rotationFactor, source) {

      if (rotateState == 3) {
        //set to current rotation - rotationFactor.
        return;
      }
     //update rotation using setNativeProps
    },

rotationState can be the following values:

This event is only available in AR.

onScroll

PropTypes.func

Called when the user performs a scroll action, while hovering on the control.

For example:

_onScroll(scrollPos, source)  {
    // scrollPos[0]: x scroll position from 0.0 to 1.0. 
    // scrollPos[1]: y scroll position from 0.0 to 1.0.
}

For the mapping of sources to controller inputs, see the Events section.

Unsupported VR Platforms: Cardboard(Android and iOS)

onSwipe

PropTypes.func

Called when the user performs a swipe gesture on the physical controller, while hovering on this control.

For example:

_onSwipe(state, source)  {
    if(state == 1) {
        // Swiped up
    } else if(state == 2) {
        // Swiped down
    } else if(state == 3) { 
       // Swiped left
    } else if(state == 4) { 
       // Swiped right
    }
}

For the mapping of sources to controller inputs, see the Events section.

Unsupported VR Platforms: Cardboard(Android and iOS)

onTouch

PropTypes.func

Called when the user performs a touch action, while hovering on the control. Provides the touch state type, and the x/y coordinate at which this touch event has occurred.

For example:

_onTouch(state, touchPos, source)  {
   var touchX = touchPos[0];
   var touchY = touchPos[1];
    if(state == 1) {
        // Touch Down
    } else if(state == 2) {
        // Touch Down Move
    } else if(state == 3) { 
        // Touch Up
    }
}

For the mapping of sources to controller inputs, see the Events section.

Unsupported VR Platforms: Cardboard(Android and iOS).

opacity

PropTypes.number

A number from 0 to 1 that specifies the opacity of the container. A value of 1 translates into a fully opaque node while 0 represents full transparency.

pauseUpdates

PropTypes.boolean

True/False to stop the automatic positioning/rotation of children components of a ViroARPlane. This does not stop onAnchorUpdated from being called.

viroTag

PropTypes.string

A tag given to other components when their physics body collides with this component's physics body. Refer to physics for more information.

visible

PropTypes.bool

False if the container should be hidden. By default the container is visible and this value is true.

renderingOrder

PropTypes.number

This determines the order in which this Node is rendered relative to other Nodes. Nodes with greater rendering orders are rendered last. The default rendering order is zero. For example, setting a Node's rendering order to -1 will cause the Node to be rendered before all Nodes with rendering orders greater than or equal to 0.

A wrapper function around the native component's setNativeProps which allow users to set values on the native component without changing state/setting props and re-rendering. Refer to the React Native documentation on Direct Manipulation for more information.

For example, setting position natively would look like this:

componentRef.setNativeProps({
    position : [0, 0, -1]
});