Files
react-native/Libraries/Image/ImageBackground.js
T
edenb-moveo 6c080167e6 Update ImageBackground.js (#32055)
Summary:
Currently ImageBackGround component has optional style props, but if you don't pass it as prop, it still "thinks" you pass style and crushes.
In this pr, I made width and height inside component to be optional so it won't crush.

## Changelog

[General] [Fix] - Changed ImageBackground's style so it won't crush.

[Screen Shot 2021-08-20 at 15 05 45](https://user-images.githubusercontent.com/62840630/130230568-be02b1a2-52ec-4f9d-b3d3-212552d3882b.png)

As you can see in this component, I tried to use ImageBackground without any style props, and my app crushes. Then I added style with empty object and the app didn't crush anymore, as you can see here:
![Screen Shot 2021-08-20 at 15 09 23](https://user-images.githubusercontent.com/62840630/130230932-a576c397-a910-4e40-a202-56482d83dd9c.png).

In conclusion, if we make width and height styles optionals inside ImageBackground component, it won't crush anymore.

Thoughts:
Maybe consider to make style props for this component none-optional because it isn't make any sense that image won't have any style at all.

Thanks ahead, that was my first pr, Eden Binyamin.

Pull Request resolved: https://github.com/facebook/react-native/pull/32055

Reviewed By: charlesbdudley

Differential Revision: D30452297

Pulled By: sshic

fbshipit-source-id: b7071aa457dba443ed2f627c2458ea84fd24b36d
2021-08-20 23:37:18 -07:00

91 lines
2.5 KiB
JavaScript

/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @flow
* @format
*/
'use strict';
const Image = require('./Image');
const React = require('react');
const StyleSheet = require('../StyleSheet/StyleSheet');
const View = require('../Components/View/View');
/**
* Very simple drop-in replacement for <Image> which supports nesting views.
*
* ```ReactNativeWebPlayer
* import React, { Component } from 'react';
* import { AppRegistry, View, ImageBackground, Text } from 'react-native';
*
* class DisplayAnImageBackground extends Component {
* render() {
* return (
* <ImageBackground
* style={{width: 50, height: 50}}
* source={{uri: 'https://reactnative.dev/img/opengraph.png'}}
* >
* <Text>React</Text>
* </ImageBackground>
* );
* }
* }
*
* // App registration and rendering
* AppRegistry.registerComponent('DisplayAnImageBackground', () => DisplayAnImageBackground);
* ```
*/
class ImageBackground extends React.Component<$FlowFixMeProps> {
setNativeProps(props: Object) {
// Work-around flow
const viewRef = this._viewRef;
if (viewRef) {
viewRef.setNativeProps(props);
}
}
_viewRef: ?React.ElementRef<typeof View> = null;
_captureRef = ref => {
this._viewRef = ref;
};
render(): React.Node {
const {children, style, imageStyle, imageRef, ...props} = this.props;
return (
<View
accessibilityIgnoresInvertColors={true}
style={style}
ref={this._captureRef}>
<Image
{...props}
style={[
StyleSheet.absoluteFill,
{
// Temporary Workaround:
// Current (imperfect yet) implementation of <Image> overwrites width and height styles
// (which is not quite correct), and these styles conflict with explicitly set styles
// of <ImageBackground> and with our internal layout model here.
// So, we have to proxy/reapply these styles explicitly for actual <Image> component.
// This workaround should be removed after implementing proper support of
// intrinsic content size of the <Image>.
width: style?.width,
height: style?.height,
},
imageStyle,
]}
ref={imageRef}
/>
{children}
</View>
);
}
}
module.exports = ImageBackground;