/Javascript/React/How to make your own drop down react native

How to make your own drop down react native

import React, { Component } from "react";
import { Picker, View, Text, StyleSheet } from "react-native";

export default class CategoryScreen extends Component {
  state = {
    selectedcat: "",
    category: [
      {
        itemName: "Samsung M20"
      },
      {
        itemName: "Nokia"
      },
      {
        itemName: "Apple"
      },
      {
        itemName: "Samsung M23"
      },
      {
        itemName: "Samsung M24"
      },
      {
        itemName: "Samsung M25"
      }
    ]
  };

  async onValueChangeCat(value) {
    this.setState({ selectedcat: value });
  }

  render() {
    return (
      <View style={styles.viewStyle}>
        <View style={{ flex: 0.3 }}>
          <Text style={styles.textStyle}>Categories</Text>
        </View>
        <View style={{ flex: 0.7, fontSize: 14 }}>
          <Picker
            itemStyle={styles.itemStyle}
            mode="dropdown"
            style={styles.pickerStyle}
            selectedValue={this.state.selectedcat}
            onValueChange={this.onValueChangeCat.bind(this)}
          >
            {this.state.category.map((item, index) => (
              <Picker.Item
                color="#0087F0"
                label={item.itemName}
                value={item.itemName}
                index={index}
              />
            ))}
          </Picker>
        </View>
      </View>
    );
  }
}

const styles = StyleSheet.create({
  viewStyle: {
    flex: 1,
    alignSelf: "center",
    flexDirection: "row",
    width: "92%",
    justifyContent: "space-between",
    alignItems: "center"
  },
  itemStyle: {
    fontSize: 10,
    fontFamily: "Roboto-Regular",
    color: "#007aff"
  },
  pickerStyle: {
    width: "100%",
    height: 40,
    color: "#007aff",
    fontSize: 14,
    fontFamily: "Roboto-Regular"
  },
  textStyle: {
    fontSize: 14,
    fontFamily: "Roboto-Regular"
  }
});

Source: stackoverflow.com

Similar codes

1 vote224 views1 answer
React usestate set is async
Javascript React
0 vote227 views1 answer
React native camscanner application mobile code
Javascript React
1 vote219 views2 answers
React-native array.filter by index arrow function
Javascript React
25 votes250 views6 answers
React native shadow android
Javascript React
3 votes201 views1 answer
React router dom current path hook
Javascript React
9 votes219 views3 answers
Shadowoffset react native constructor
Javascript React
40 votes224 views4 answers
What does useref do react
Javascript React
0 vote221 views1 answer
Reactnaviataion change title
Javascript React
0 vote208 views1 answer
Getting state in react-router-dom v6
Javascript React
0 vote207 views4 answers
React node sequilize
Javascript React