Set header title in stack navigator
1Component.navigationOptions = {
2 headerTitle: 'Conversations'
3}
headerTitle is a property that is specific to stack navigator. The alternative is title. headerTitle will default to title in other navigators.
or a callback function if you wanna use params (e.g. username in title)
1Home.navigationOptions = ({ navigation }) => {(
2 title: navigation.getParam('otherParam', 'A Nested Details Screen'),
3)}