React Warning: Cannot update a component from inside the function body of a different component

Question

I am using Redux with Class Components in React. Having the below two states in Redux store.

{ spinner: false, refresh: false }

In Parent C

Answer 1

It seems that you have latest build of React@16.13.x. You can find more details about it here. It is specified that you should not setState of another component from other component.

from the docs:

It is supported to call setState during render, but only for the same component. If you call setState during a render on a different component, you will now see a warning:
Warning: Cannot update a component from inside the function body of a different component.
This warning will help you find application bugs caused by unintentional state changes. In the rare case that you intentionally want to change the state of another component as a result of rendering, you can wrap the setState call into useEffect.

---

Coming to the actual question.

I think there is no need of getDerivedStateFromProps in the child component body. If you want to trigger the bound event. Then you can call it via the onClick of the Child component as i can see it is a .

class Child extends React.Component {
  constructor(props){
    super(props);
    this.updateState = this.updateState.bind(this);
  }
  updateState() { // call this onClick to trigger the update
    if (somecondition) {
      // doing some redux store update
      this.props.reloadApp();
    }
  }

  render() {
    return 

; } }