121e2e5ca6
Summary:
Previously, I created two props, `accessibilityRole` and `accessibilityStates` for view. These props were intended to be a cross-platform solution to replace `accessibilityComponentType` on Android and `accessibilityTraits` on iOS.
In this stack, I ran a code mod to replace instances of the two old properties used in our codebase with the new ones.
For this diff, I did a search for all the remnant uses of `accessibilityComponentType` that was not caught by my script, and I manually changed them to `accessibilityRole` and `accessibilityStates`. If the same prop also set `accessibilityTraits` I also removed that here because the two new props works on both platforms.
It was difficult to write a script for this, because most of them were contextual changes.
Out of the contextual changes, most of them followed one of these two patterns:
Before:
```
const accessibilityComponentType = 'button';
const accessibilityTraits = ['button'];
if (this.props.checked) {
accessibilityTraits.push('selected');
}
if (this.props.disabled) {
accessibilityTraits.push('disabled');
}
contentView = (
<AdsManagerTouchableHighlight
accessibilityComponentType={accessibilityComponentType}
accessibilityTraits={accessibilityTraits}
```
After:
const accessibilityRole = 'button';
const accessibilityStates = [];
if (this.props.checked) {
accessibilityStates.push('selected');
}
if (this.props.disabled) {
accessibilityStates.push('disabled');
}
contentView = (
<AdsManagerTouchableHighlight
accessibilityRole={accessibilityRole}
accessibilityStates={accessibilityStates}
Before:
```
<PressableBackground
accessible={this.props.accessible}
accessibilityLabel={this.props.accessibilityLabel}
accessibilityTraits={this.props.accessibilityTraits}
```
After:
```
<PressableBackground
accessible={this.props.accessible}
accessibilityLabel={this.props.accessibilityLabel}
accessibilityRole={this.props.accessibilityRole}
accessibilityRole={this.props.accessibilityStates}
```
In addition to changing the props on the components,
Another fix I had to do was to add props accessibilityRole and accessibilityStates to components that don't directly inherit properties from view including text input and touchables.
Reviewed By: PeteTheHeat
Differential Revision: D8943499
fbshipit-source-id: fbb40a5e5f5d630b0fe56a009ff24635d4c8cc93
React Native · 
Learn once, write anywhere: Build mobile apps with React.
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The focus of React Native is on developer efficiency across all the platforms you care about - learn once, write anywhere. Facebook uses React Native in multiple production apps and will continue investing in React Native.
See the official React Native website for an introduction to React Native.
Supported operating systems are >= Android 4.1 (API 16) and >= iOS 8.0.
Getting Started
Follow the Getting Started guide. The recommended way to install React Native depends on your project. Here you can find short guides for the most common scenarios:
Documentation
The website’s documentation is divided into multiple sections.
- There are Guides that discuss topics like debugging, integrating with existing apps, and the gesture responder system.
- The Components section covers React components such as
ViewandButton. - The APIs section covers other libraries like Animated and StyleSheet that aren’t React components themselves.
- Finally, React Native provides a small number of Polyfills that offer web-like APIs.
Another great way to learn more about the components and APIs included with React Native is to read their source. Look under the Libraries/Components directory for components like ScrollView and TextInput, for example. The RNTester example is also here to demonstrate some of the ways to use these components. From the source you can get an accurate understanding of each component’s behavior and API.
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