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javascriptreact-nativelifecyclereact-lifecycle

Lifecycle Management in React-native

What is the life cycle when exiting an app with Swipe in Ios Simulator? I tried to log every lifecycle, but nothing happened. I want to execute a specific function when the app exits, but I'm not sure what to do. Has anyone had a similar problem with me?

Solution

  • There's no way to detect if the app is closing, but you can check if the app is in background using AppState.

    In your parent component, add:

    import { AppState } from 'react-native';

...

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

...

_handleAppStateChange = (nextAppState) => {
    //based of nextAppState, do what you need
}

    Source: https://facebook.github.io/react-native/docs/appstate