my setState() doesn't set the value. How can I fix that?

Question

When I trying to update my state with setState it doesn't work.

sendMax = () => {
    console.log('Balance',this.state.balance)
    this.setState({ amount: this.state.balance })
    console.log('max', this.state.amount)
  }



<TouchableOpacity onPress={() => this.sendMax()}>
                <Image
                  source={require('../../assets/maxIcon.png')}
                  style={styles.icons} />
              </TouchableOpacity>

I'm using it inside of this how can I get this value inside it

when I console this.state.balance I get the value but I cannot set amount with this value

@Atakan It is not clear what your problem is. Are you saying that when you console log 'max' then the value is the old one and not the new one? — sebastianf182, Sep 01 '19 at 21:02

score 1 · Accepted Answer · answered Sep 01 '19 at 19:53

1

setState is async, if you want to listen when it's updated, use a callback

this.setState({ amount: this.state.balance }, () => console.log('max', this.state.amount));

answered Sep 01 '19 at 19:53

Vladyslav Babenko

1,349
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sendMax = () => { console.log('Balance',this.state.balance) this.setState({ amount: this.state.balance },() => console.log('max', this.state.amount) ) } this.sendMax()}> – Rishav Kumar Sep 02 '19 at 05:39

my setState() doesn't set the value. How can I fix that?

1 Answers1