react-native-web/docs/components/View.md

View

View is the fundamental UI building block. It is a component that supports style, layout with flexbox, and accessibility controls. It can be nested inside another View and has 0-to-many children of any type.

Unsupported React Native props: accessibilityComponentType (android) – use accessibilityRole, accessibilityTraits (ios) – use accessibilityRole, collapsable (android), importantForAccessibility (android), needsOffscreenAlphaCompositing (android), onAccessibilityTap, onMagicTap, onMoveShouldSetResponder, onResponder*, onStartShouldSetResponder, onStartShouldSetResponderCapture removeClippedSubviews (ios), renderToHardwareTextureAndroid (android), shouldRasterizeIOS (ios)

Props

NOTE: View will transfer all other props to the rendered HTML element.

accessibilityLabel: string

Defines the text available to assistive technologies upon interaction with the element. (This is implemented using aria-label.)

accessibilityLiveRegion: oneOf('assertive', 'off', 'polite') = 'off'

Indicates to assistive technologies whether to notify the user when the view changes. The values of this attribute are expressed in degrees of importance. When regions are specified as polite (recommended), updates take low priority. When regions are specified as assertive, assistive technologies will interrupt and immediately notify the user. (This is implemented using aria-live.)

(web) accessibilityRole: oneOf(roles)

Allows assistive technologies to present and support interaction with the view in a manner that is consistent with user expectations for similar views of that type. For example, marking a touchable view with an accessibilityRole of button. (This is implemented using ARIA roles).

Note: Avoid changing accessibilityRole values over time or after user actions. Generally, accessibility APIs do not provide a means of notifying assistive technologies of a role value change.

accessible: bool = true

When false, the view is hidden from assistive technologies. (This is implemented using aria-hidden.)

onLayout: function

(TODO)

pointerEvents: oneOf('auto', 'box-only', 'box-none', 'none') = 'auto'

Configure the pointerEvents of the view. The enhanced pointerEvents modes provided are not part of the CSS spec, therefore, pointerEvents is excluded from style.

box-none is the equivalent of:

.box-none { pointer-events: none }
.box-none * { pointer-events: auto }

box-only is the equivalent of:

.box-only { pointer-events: auto }
.box-only * { pointer-events: none }

style: style

• alignContent
• alignItems
• alignSelf
• backfaceVisibility
• backgroundAttachment
• backgroundClip
• backgroundColor
• backgroundImage
• backgroundOrigin
• backgroundPosition
• backgroundRepeat
• backgroundSize
• borderColor
• borderRadius
• borderStyle
• borderWidth
• bottom
• boxShadow
• boxSizing
• cursor
• flex (number)
• flexBasis
• flexDirection
• flexGrow
• flexShrink
• flexWrap
• height
• justifyContent
• left
• margin (single value)
• marginBottom
• marginHorizontal
• marginLeft
• marginRight
• marginTop
• marginVertical
• maxHeight
• maxWidth
• minHeight
• minWidth
• opacity
• order
• overflow
• overflowX
• overflowY
• padding (single value)
• paddingBottom
• paddingHorizontal
• paddingLeft
• paddingRight
• paddingTop
• paddingVertical
• position
• right
• top
• transform
• userSelect
• visibility
• width
• zIndex

Default:

{
  alignItems: 'stretch',
  borderWidth: 0,
  borderStyle: 'solid',
  boxSizing: 'border-box',
  display: 'flex',
  flexBasis: 'auto',
  flexDirection: 'column',
  flexShrink: 0,
  margin: 0,
  padding: 0,
  position: 'relative'
};

(See facebook/css-layout).

testID: string

Used to locate this view in end-to-end tests.

Examples

import React, { Component, PropTypes, StyleSheet, View } from 'react-native'

export default class ViewExample extends Component {
  render() {
    return (
      <View style={styles.row}>
        {
          ['1', '2', '3', '4', '5'].map((value, i) => {
            return <View children={value} key={i} style={styles.cell} />
          })
        }
      </View>
    );
  }
}

const styles = StyleSheet.create({
  row: {
    flexDirection: 'row'
  },
  cell: {
    flexGrow: 1
  }
})