App.js

import React from "react";
import { StyleSheet, Text, View } from "react-native";
import { registerRootComponent } from "expo";
import Touchable from "@appandflow/touchable";

import QuickPicker from "./src/QuickPicker";

export default class App extends React.Component {
  state = {
    selectedLetter: new Date(),
  };

  _onPressText = () => {
    const { selectedLetter } = this.state;
    QuickPicker.open({
      // items: ["a", "b", "c"],
      mode: "datetime",
      pickerType: "date",
      selectedValue: this.state.selectedLetter,
      doneButtonText: "Save",
      onValueChange: selectedValueFromPicker =>
        this.setState({ selectedLetter: selectedValueFromPicker }),
      useNativeDriver: true,
      itemStyleAndroid: {
        color: "grey",
        padding: 10,
      },
      selectedItemStyleAndroid: {
        color: "#0076ff",
        fontWeight: "500",
      },
    });
  };

  render() {
    return (
      <View style={styles.container}>
        <Touchable
          feedback="opacity"
          native={false}
          onPress={this._onPressText}
        >
          <Text>Open up picker, selected letter:</Text>
        </Touchable>
        <QuickPicker />
      </View>
    );
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: "#fff",
    alignItems: "center",
    justifyContent: "center",
  },
});

registerRootComponent(App);