react-redux 6 + React Native - not firing mapStateToProps after state changes

What is the current behavior?

mapStateToProps is run once when the component loads, but does not run again when state is changed.

Given a component of

export default ({
  testx,
}) => (
  <View>
    <Button title="Load" onPress={() => dispatchTest()} />
    <Text>{testx}</Text>
  </View>
);

A mapStateToProps of

const mapStateToProps = state => ({
  testx: state.test,
});

A mapDispatchToProps of

const mapDispatchToProps = {
  dispatchTest: test,
};

An action creator of

export const TEST = 'TEST';

export const test = () => ({
  type: TEST,
});

And a reducer of

export default (state = initialState, action) => {
  switch (action.type) {
    case TEST:
      return { ...state, test: 'toast' };
    default:
      return state;
  }
};

Logging confirms that the state is being updated but that mapStateToProps is not being rerun afterwards. The component will continue to display the initial value of test and will never display the new value set in state by the reducer (toast).

What is the expected behavior?

The state change made by the reducer ought to cause redux to rerun mapStateToProps, thereby updating the props received by the component.

Which versions of Redux, and which browser and OS are affected by this issue? Did this work in previous versions of Redux?

This issue is happening since I updated react-redux from 5.1.1 to 6.0.0. Downgrading react-redux back to 5.1.1 fixes the problem and everything behaves as expected. I am using React 16.6.3 and React Native 0.57.1.

[kalraneeraj24550]

i am still facing this issue , anybody plz help me. mapStateToProp function not getting executed.

my project has these dependencies

“expo”: “^32.0.0”, “react”: “16.5.0”, “react-native”: “https://github.com/expo/react-native/archive/sdk-32.0.0.tar.gz”, “react-native-elements”: “^1.0.0-beta7”, “react-native-maps”: “^0.22.1”, “react-native-status-bar-height”: “^2.2.0”, “react-native-typography”: “^1.4.0”, “react-native-vector-icons”: “^6.1.0”, “react-navigation”: “^3.3.2”, “react-redux”: “^6.0.1”, “redux”: “^4.0.1”, “redux-thunk”: “^2.3.0”

any one plz help me

[dreamchasersuon]

Hey guys! For anyone who will faced with issue. I can confirm, for me this problem solved by downgrading from (react: ‘16.8.9’):

`“dependencies”: {

"axios": "^0.18.0",
"axios-mock-adapter": "^1.16.0",
"expo": "^32.0.0",
"expokit": "32.1.1",
"native-base": "^2.12.1",
"react": "16.8.9",
"react-native": "https://github.com/expo/react-native/archive/sdk-32.0.0.tar.gz",
"react-native-datawedge-intents": "^0.1.2",
"react-native-keyevent": "^0.1.1",
"react-navigation": "^3.7.1",
"react-redux": "6.0.1",
"redux": "^4.0.1",
"redux-logger": "^3.0.6",
"redux-persist": "^5.10.0",
"redux-persist-expo-securestore": "^0.1.1",
"redux-thunk": "^2.3.0"

},`

To (react: ‘16.5.0’):

`“dependencies”: {

"axios": "^0.18.0",
"axios-mock-adapter": "^1.16.0",
"expo": "^32.0.0",
"expokit": "32.1.1",
"native-base": "^2.12.1",
"react": "16.5.0",
"react-native": "https://github.com/expo/react-native/archive/sdk-32.0.0.tar.gz",
"react-native-datawedge-intents": "^0.1.2",
"react-native-keyevent": "^0.1.1",
"react-navigation": "^3.7.1",
"react-redux": "6.0.1",
"redux": "^4.0.1",
"redux-logger": "^3.0.6",
"redux-persist": "^5.10.0",
"redux-persist-expo-securestore": "^0.1.1",
"redux-thunk": "^2.3.0"

},`

Thanks.