146 строки
3.6 KiB
JavaScript
146 строки
3.6 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 Platform = require('Platform');
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const React = require('React');
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const StyleSheet = require('StyleSheet');
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const View = require('View');
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const RCTActivityIndicatorViewNativeComponent = require('RCTActivityIndicatorViewNativeComponent');
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import type {NativeComponent} from 'ReactNative';
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import type {ViewProps} from 'ViewPropTypes';
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const RCTActivityIndicator =
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Platform.OS === 'android'
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? require('ProgressBarAndroid')
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: RCTActivityIndicatorViewNativeComponent;
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const GRAY = '#999999';
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type IndicatorSize = number | 'small' | 'large';
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type IOSProps = $ReadOnly<{|
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/**
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* Whether the indicator should hide when not animating (true by default).
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*
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* See http://facebook.github.io/react-native/docs/activityindicator.html#hideswhenstopped
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*/
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hidesWhenStopped?: ?boolean,
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|}>;
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type Props = $ReadOnly<{|
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...ViewProps,
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...IOSProps,
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/**
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* Whether to show the indicator (true, the default) or hide it (false).
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*
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* See http://facebook.github.io/react-native/docs/activityindicator.html#animating
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*/
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animating?: ?boolean,
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/**
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* The foreground color of the spinner (default is gray).
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*
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* See http://facebook.github.io/react-native/docs/activityindicator.html#color
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*/
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color?: ?string,
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/**
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* Size of the indicator (default is 'small').
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* Passing a number to the size prop is only supported on Android.
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*
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* See http://facebook.github.io/react-native/docs/activityindicator.html#size
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*/
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size?: ?IndicatorSize,
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|}>;
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/**
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* Displays a circular loading indicator.
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*
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* See http://facebook.github.io/react-native/docs/activityindicator.html
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*/
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const ActivityIndicator = (props: Props, forwardedRef?: any) => {
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const {onLayout, style, size, ...restProps} = props;
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let sizeStyle;
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let sizeProp;
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switch (size) {
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case 'small':
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sizeStyle = styles.sizeSmall;
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sizeProp = 'small';
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break;
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case 'large':
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sizeStyle = styles.sizeLarge;
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sizeProp = 'large';
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break;
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default:
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sizeStyle = {height: props.size, width: props.size};
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break;
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}
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const nativeProps = {
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...restProps,
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ref: forwardedRef,
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style: sizeStyle,
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size: sizeProp,
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styleAttr: 'Normal',
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indeterminate: true,
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};
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return (
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<View
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onLayout={onLayout}
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style={StyleSheet.compose(
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styles.container,
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style,
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)}>
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{/* $FlowFixMe(>=0.78.0 site=react_native_android_fb) This issue was
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* found when making Flow check .android.js files. */}
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<RCTActivityIndicator {...nativeProps} />
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</View>
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);
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};
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const ActivityIndicatorWithRef = React.forwardRef(ActivityIndicator);
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ActivityIndicatorWithRef.displayName = 'ActivityIndicator';
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/* $FlowFixMe(>=0.89.0 site=react_native_fb) This comment suppresses an error
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* found when Flow v0.89 was deployed. To see the error, delete this comment
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* and run Flow. */
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ActivityIndicatorWithRef.defaultProps = {
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animating: true,
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color: Platform.OS === 'ios' ? GRAY : null,
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hidesWhenStopped: true,
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size: 'small',
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};
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const styles = StyleSheet.create({
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container: {
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alignItems: 'center',
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justifyContent: 'center',
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},
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sizeSmall: {
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width: 20,
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height: 20,
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},
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sizeLarge: {
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width: 36,
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height: 36,
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},
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});
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/* $FlowFixMe(>=0.89.0 site=react_native_fb) This comment suppresses an error
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* found when Flow v0.89 was deployed. To see the error, delete this comment
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* and run Flow. */
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module.exports = (ActivityIndicatorWithRef: Class<NativeComponent<Props>>);
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