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facebook / react-native

A framework for building native applications using React
https://reactnative.dev
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requestIdleCallback may never fire again after app is backgrounded #17645

Closed berickson1 closed 6 years ago

berickson1 commented 6 years ago

Is this a bug report?

Yes

Have you read the Contributing Guidelines?

Yes

Environment

Latest Expo App: SDK 24 Target Platform: Android 7.0

Steps to Reproduce

  1. Run Expo Sample https://snack.expo.io/r1HW4J0EG
  2. Background Expo Sample
  3. Foreground Expo Sample

This occurs if I always maintain at least one setIdleCallback queued at the time the app is backgrounded.

Expected Behavior

Counter continues to increment

Actual Behavior

Counter stops running

Reproducible Demo

https://snack.expo.io/r1HW4J0EG

export default class App extends Component {
  doIdleWork() {
    requestIdleCallback(() => {
      this.setState({number: this.state ? this.state.number +1 : 0 });
      // setup another requestIdleCallback before we're done
      this.doIdleWork();
    });
  }
  componentDidMount() {
    this.state = { number:1 };
    this.doIdleWork();
  }
  render() {
    return (
      <View style={styles.container}>
        <Text style={styles.paragraph}>
         {this.state ? this.state.number : 0 }
        </Text>
        <Card title="Local Modules">
          <AssetExample />
        </Card>
      </View>
    );
  }
}
berickson1 commented 6 years ago

Still occurring on ReactNative 25 Update expo link: https://snack.expo.io/BkvefsqUM

react-native-bot commented 6 years ago

Thanks for posting this! It looks like you may not be using the latest version of React Native, v0.53.0, released on January 2018. Can you make sure this issue can still be reproduced in the latest version?

I am going to close this, but please feel free to open a new issue if you are able to confirm that this is still a problem in v0.53.0 or newer.

How to Contribute • What to Expect from Maintainers

salmanwaheed commented 6 years ago

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