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0a875790f5
of the navigator component.
Summary:
Per offline discussion with @evv, we'd like to deprecate the `onDidFocus` and `onWillFocus`
API that makes it really hard for the descendent children of a navigator to observe its focus
change events.
@public
Since for now the descendent children do have access to the navigator via `this.props.navigator`,
this diff makes it easy to observe the focus change event by doing:
```
this.props.navigator.addListener('willfocus', this._onFocus);
```
The goal is to make the event system in navigator more useful and maintainable.
Test Plan:
Test Video: https://www.facebook.com/pxlcld/mrzS
1. jest: ./Libraries/FBReactKit/js/runTests.js NavigationEventEmitter
2. Load UI Explorer: <Navigator />, see console logs that shows the focus change events fires.
22 lines
367 B
JavaScript
22 lines
367 B
JavaScript
/**
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* Copyright 2004-present Facebook. All Rights Reserved.
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*
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* @providesModule NavigationEvent
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* @flow
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*/
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'use strict';
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class NavigationEvent {
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type: String;
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target: Object;
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data: any;
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constructor(type: String, target: Object, data: any) {
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this.type = type;
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this.target = target;
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this.data = data;
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}
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}
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module.exports = NavigationEvent;
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