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Avoid removeEventListener Warning #110

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Avoid removeEventListener Warning #110

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5 changes: 3 additions & 2 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,7 @@ class CountDown extends React.Component {
until: Math.max(this.props.until, 0),
lastUntil: null,
wentBackgroundAt: null,
appStateSubscription: null
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@miguelzabalaf miguelzabalaf Sep 20, 2022 •
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@Lamonarch87
If you use TypeScript in your project, assign this PropType to appStateSubscription, to avoid warnings when rendering the component:

appStateSubscription: PropTypes.oneOfType([PropTypes.func, PropTypes.object])

};

constructor(props) {
Expand All @@ -51,12 +52,12 @@ class CountDown extends React.Component {
}

componentDidMount() {
AppState.addEventListener('change', this._handleAppStateChange);
this.appStateSubscription = AppState.addEventListener('change', this._handleAppStateChange);
}

componentWillUnmount() {
clearInterval(this.timer);
AppState.removeEventListener('change', this._handleAppStateChange);
this.appStateSubscription.remove();
}

componentDidUpdate(prevProps, prevState) {
Expand Down