const React = require('react'); const Root = require('../components/Root'); const Button = require('../components/Button'); const Navigation = require('../services/Navigation'); const Screens = require('./Screens'); const { PUSH_TO_TEST_DID_DISAPPEAR_BTN, DISMISS_MODAL_BTN, POP_BTN } = require('../testIDs'); class LifecycleScreen extends React.Component { static options() { return { topBar: { title: { text: 'Lifecycle Screen' } } } } state = { text: 'nothing yet' }; constructor(props) { super(props); Navigation.events().bindComponent(this); } componentDidAppear() { this.setState({ text: 'didAppear' }); } componentDidDisappear() { alert('didDisappear'); // eslint-disable-line no-alert } componentWillUnmount() { setTimeout(() => { alert('componentWillUnmount'); // eslint-disable-line no-alert }, 100); } navigationButtonPressed(id) { alert(`navigationButtonPressed: ${id}`); // eslint-disable-line no-alert } render() { return (