How to display Picker.Item label with Dynamic values in array in react native

问题

how can I pick 'label' of 'Picker.Item' from an array. i have my picker code as follows:

<View style={Styles.inputWrapper}>
<Picker
selectedValue={this.state.expiryYear}
style={Styles.expYear}
onValueChange={(itemValue, itemIndex) => this.setState({ expiryYear:
itemValue })}>

<Picker.Item label="select" value="0" />
<Picker.Item label="2018" value="2018" />
<Picker.Item label="2019" value="2019" />
<Picker.Item label="2020" value="2020" />
<Picker.Item label="2021" value="2021" />
.
.
.
<Picker.Item label="2030" value="2030" />
</Picker>
</View>

I have an array 'years[]' with values 2018,2019,...,2030

        var years = [];
        for (y = 2018; y <= 2030; y++) {
          years.push([y]);
        }

In dropdown list I want to show years

回答1:

You need to add below code in between your <Picker> CODE </Picker>

    years.map((year) => {
        return (
            <Picker.Item label={year} value={year} />
        )
    })

years is an array and has value whatever you want to render.(i mean how many years)

来源：https://stackoverflow.com/questions/53332389/how-to-display-picker-item-label-with-dynamic-values-in-array-in-react-native