I want to update state of key heart in the array's objects when the heart icon pressed it changes to red so for this I'm using react native icons and i'm using heart and hearto to switch when click on it
here is the code:
state = {
localAdversiment: [
{
title: "Ecloninear 871",
image: require("../../assets/images/truck_image.png"),
year: "2015",
type: "Truck",
status: "new",
price: "$ 2000",
heart: "hearto"
}
Here it function which is called when heart icon pressed
handleFavourite = index => {
const { heart } = this.state.localAdversiment[index];
this.setState(
{
heart: "heart"
}
);
};
here is the heart icon code
<TouchableOpacity onPress={() => this.handleFavourite(index)}>
<Icon
name={item.heart}
type={"AntDesign"}
style={{ fontSize: 18 }}
/>
</TouchableOpacity>
kindly help me how to update heart as heart instead of hearto when clicked
You may call setState() immediately in componentDidMount() . It will trigger an extra rendering, but it will happen before the browser updates the screen. This guarantees that even though the render() will be called twice in this case, the user won't see the intermediate state.
To update nested properties in a state object in React: Pass a function to setState to get access to the current state object. Use the spread syntax (...) to create a shallow copy of the object and the nested properties. Override the properties you need to update.
To update an object in a state array, call the map() method to iterate over the array and update the object that matches the condition. Copied! const updateObjectInArray = () => { setEmployees(current => current. map(obj => { if (obj.id === 2) { return {...
You can do it easily by following approach
state = {
localAdversiment: [
{
id: 0,
title: "Ecloninear 871",
image: require("../../assets/images/truck_image.png"),
year: "2015",
type: "Truck",
status: "new",
price: "$ 2000",
heart: "hearto",
selected: false
}
}
now in onPress do this
handleFavourite = (item) => {
const { id } = item;
this.setState({
localAdvertisement: this.state.localAdvertisement.map((item) => {
if(item.id === id){
return {
...item,
selected: !item.selected
}
}
return item
})
})
};
Now render like this
<TouchableOpacity onPress={() => this.handleFavourite(item)}>
<Icon
name={item.selected ? "heart" : 'hearto'}
type={"AntDesign"}
style={{ fontSize: 18 }}
/>
</TouchableOpacity>
Hope it will help you
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