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150fe7cb9c
Summary:
`BackAndroid.addEventListener()` returns a subscription object with a `remove()` function in android. Before this fix, the iOS equivalent doesn't return anything, which means, if there's a component doing something like this, it would redbox:
```
componentWillMount() {
this._subscription = BackAndroid.addEventListener('hardwareBackPress', () => {...});
}
componentWillUnmount() {
this._subscription.remove(); // --> redbox in iOS before this fix
}
```
Differential Revision: D3790480
fbshipit-source-id: 1e607171bf2892a6b64977c4fd052c5df0bc4a0d
29 lines
627 B
JavaScript
29 lines
627 B
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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* iOS stub for BackAndroid.android.js
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*
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* @providesModule BackAndroid
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*/
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'use strict';
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function emptyFunction() {}
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const BackAndroid = {
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exitApp: emptyFunction,
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addEventListener() {
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return {
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remove: emptyFunction,
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};
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},
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removeEventListener: emptyFunction,
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};
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module.exports = BackAndroid;
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