gistfile1.txt

import React from "react";
import { View, Text } from "react-native";

import {
    StackNavigator,
    addNavigationHelpers,
    NavigationActions
} from "react-navigation";

import {
    setJSExceptionHandler,
    getJSExceptionHandler
} from "react-native-exception-handler";

setJSExceptionHandler((error, isFatal) => {
    alert(error);
}, true);

class View1 extends React.Component {
    componentWillMount() {
        const promise = new Promise(resolve => {
            setTimeout(() => {
                console.log("ran promise");
                resolve(true);
            }, 2000);
        });

        promise.then(() => {
            this.props.navigation.dispatch(
                NavigationActions.navigate({
                    routeName: "View2"
                })
            );
        });
    }

    render() {
        return (
            <View>
                <Text>View1</Text>
            </View>
        );
    }
}

class View2 extends React.Component {
    componentWillMount() {
        this.shouldCrash();
    }

    render() {
        return (
            <View>
                <Text>View2</Text>
            </View>
        );
    }
}

var routes = StackNavigator(
    {
        View1: {
            screen: View1
        },
        View2: {
            screen: View2
        }
    },
    {}
);

const AppNavigator = routes;

export default class App extends React.Component {
    render() {
        return <AppNavigator />;
    }
}