i'm newbie here, i'm stuck. i want to change value from false to true, to stop shimmering when data sucessfully to load.
i have action like this
import axios from "axios";
import { CONSTANT_LINK } from "./constants";
import { GET } from "./constants";
import { ERROR } from "./constants";
import { connect } from 'react-redux';
export const addData = () => {
return (dispatch) => {
axios
.get(CONSTANT_LINK)
.then((res) => {
dispatch(addDataSuccess(res.data));
})
.catch((err) => {
dispatch(errorData(true));
console.log("error");
});
};
};
const addDataSuccess = (todo) => ({
type: GET,
payload: todo,
});
const errorData = (error) => ({
type: ERROR,
payload: error,
});
and this is my homepage which influential in this matter
const [shimmerValue, setShimmerValue] = useState(false)
useEffect(() => {
setShimmerValue(true)
dispatch(addData());
}, []);
<ShimmerPlaceholder visible={shimmerValue} height={20}>
<Text style={styles.welcomeName}>Welcome,Barret</Text>
</ShimmerPlaceholder>
i dont understand how it works
You can pass callback like this
const [shimmerValue, setShimmerValue] = useState(false);
const updateShimmerValue = () => {
setShimmerValue(true);
}
useEffect(() => {
// setShimmerValue(true) // remove this from here
dispatch(addData(updateShimmerValue)); // pass callback as param here
}, []);
Callback call here like
export const addData = (callback) => {
return (dispatch) => {
axios
.get(CONSTANT_LINK)
.then((res) => {
....
callback(); // trigger callback like this here
})
.catch((err) => {
....
});
};
};
you can use it:
const [shimmerValue, setShimmerValue] = useState(false)
useEffect(() => {
setState(state => ({ ...state, shimmerValue: true }));
dispatch(addData());
}, [shimmerValue]);