How to handle exit app in one screen not in the whole app - React Native?

Question

I have some issue with BackHandler, the issue is

when running the app and go to the let\'s say Sign Up screen and touch the back in my mobile they w

Answer 1

You can check for the screen has been focused prior to call the alert instead of checking the routeName from navigation.

the updated code might look like this.

if (this.props.navigation.isFocused()) {
    Alert.alert(
    "Exit App",
    "Do you want to exit?",
    [
      {
        text: "No",
        onPress: () => console.log("Cancel Pressed"),
        style: "cancel"
      },
      { text: "Yes", onPress: () => BackHandler.exitApp() }
    ],
    { cancelable: false }
    );
}