`componentDidMount()` function is not called after navigation

Question

I am using stackNavigator for navigating between screens. I am calling two API\'s in componentDidMount() function in my second activity. When i loa

Answer 1

You want to perform something after every time navigating to a component using drawernavigator or stacknavigator ; for this purpose NavigationEvents fits better than componentDidMount .

import {NavigationEvents} from "react-navigation";
alert("Hello, I'm focused!")} />

Note : If you want to do the task every time after focusing on a component using drawer navigation or stack navigation then using NavigationEvents is better idea. But if you want to do the task once then you need to use componenetDidMount .