148 lines
4.1 KiB
JavaScript
148 lines
4.1 KiB
JavaScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @format
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* @flow
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*/
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'use strict';
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const React = require('react');
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const ReactNative = require('react-native');
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const {AccessibilityInfo, Text, View, TouchableOpacity, Alert} = ReactNative;
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type Props = $ReadOnly<{||}>;
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class AccessibilityIOSExample extends React.Component<Props> {
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render() {
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return (
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<View>
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<View
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onAccessibilityTap={() =>
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Alert.alert('Alert', 'onAccessibilityTap success')
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}
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accessible={true}>
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<Text>Accessibility normal tap example</Text>
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</View>
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<View
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onMagicTap={() => Alert.alert('Alert', 'onMagicTap success')}
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accessible={true}>
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<Text>Accessibility magic tap example</Text>
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</View>
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<View
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onAccessibilityEscape={() => alert('onAccessibilityEscape success')}
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accessible={true}>
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<Text>Accessibility escape example</Text>
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</View>
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<View accessibilityLabel="Some announcement" accessible={true}>
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<Text>Accessibility label example</Text>
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</View>
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<View
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accessibilityRole="button"
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accessibilityStates={['selected']}
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accessible={true}>
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<Text>Accessibility traits example</Text>
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</View>
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<Text>
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Text's accessibilityLabel is the raw text itself unless it is set
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explicitly.
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</Text>
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<Text accessibilityLabel="Test of accessibilityLabel" accessible={true}>
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This text component's accessibilityLabel is set explicitly.
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</Text>
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<View
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accessibilityLabel="Test of accessibilityHint"
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accessibilityHint="The hint provides more info than the label does"
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accessible={true}>
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<Text>
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This view component has both an accessibilityLabel and an
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accessibilityHint explicitly set.
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</Text>
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</View>
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<Text
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accessibilityLabel="Test of accessibilityHint"
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accessibilityHint="The hint provides more info than the label does">
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This text component has both an accessibilityLabel and an
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accessibilityHint explicitly set.
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</Text>
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<TouchableOpacity
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accessibilityLabel="Test of accessibilityHint"
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accessibilityHint="The hint provides more info than the label does">
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<View>
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<Text>
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This button has both an accessibilityLabel and an
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accessibilityHint explicitly set.
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</Text>
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</View>
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</TouchableOpacity>
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<View accessibilityElementsHidden={true}>
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<Text>
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This view's children are hidden from the accessibility tree
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</Text>
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</View>
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</View>
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);
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}
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}
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class ScreenReaderStatusExample extends React.Component<{}, $FlowFixMeState> {
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state = {
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screenReaderEnabled: false,
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};
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componentDidMount() {
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AccessibilityInfo.addEventListener(
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'change',
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this._handleScreenReaderToggled,
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);
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AccessibilityInfo.fetch().done(isEnabled => {
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this.setState({
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screenReaderEnabled: isEnabled,
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});
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});
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}
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componentWillUnmount() {
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AccessibilityInfo.removeEventListener(
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'change',
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this._handleScreenReaderToggled,
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);
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}
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_handleScreenReaderToggled = isEnabled => {
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this.setState({
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screenReaderEnabled: isEnabled,
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});
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};
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render() {
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return (
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<View>
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<Text>
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The screen reader is{' '}
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{this.state.screenReaderEnabled ? 'enabled' : 'disabled'}.
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</Text>
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</View>
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);
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}
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}
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exports.title = 'AccessibilityIOS';
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exports.description = "Interface to show iOS' accessibility samples";
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exports.examples = [
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{
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title: 'Accessibility elements',
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render(): React.Element<any> {
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return <AccessibilityIOSExample />;
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},
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},
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{
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title: 'Check if the screen reader is enabled',
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render(): React.Element<any> {
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return <ScreenReaderStatusExample />;
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},
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},
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];
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