React Native Modal

The React Native Modal is a type of View component which is used to present the content above an enclosing view. There are three different types of options (slide, fade and none) available in a modal that decides how the modal will show inside the react native app.

The Modal shows above the screen covers all the application area. To use the Modal component in our application, we need to import Modal from the react-native library.

Modal Props

Props	Description
visible	This prop determines whether your modal is visible.
supportedOritentions	It allow for rotating the modal in any of the specified orientations (portrait, portrait-upside-down, landscape, landscape-left, landscape-right).
onRequestClose	This is a callback prop which is called when the user taps on the hardware back button on Android or the menu button on Apple TV.
onShow	This allows passing a function which will show when the modal once visible.
transparent	It determines whether the modal will cover the entire view. Setting it to "true" renders the modal over the transparent background.
animationType	It controls how the modal animates. There are three types of animated props available: slide: It slides the modal from the bottom. fade: It fades into the view. none: It appears the model without any animation.
hardwareAccelerated	It controls whether to force hardware acceleration for the underlying window.
onDismiss	This prop passes a function that will be called once the modal has been dismissed.
onOrientationChange	This props is called when the orientation changes while the modal is being displayed. The type of orientation is "portrait" or "landscape".
presentationStyle	It controls the appearance of a model (fullScreen, pageSheet, fromSheet, overFullScreen) generally on the large devices.
animated	This prop is deprecated. Use the animatedType prop instead, which is discussed above.

React Native Modal Example

Let's see an example of displaying a pop-up modal on clicking the button. Once we clicked the button, state variable isVisible sets to true and opens the Modal component.

To implement the Modal component import Modal from the react-native library.

App.js

import React, {Component} from 'react';
import {Platform, StyleSheet, Text, View, Button, Modal} from 'react-native';

export default class App extends Component<Props> {
  state = {
    isVisible: false, //state of modal default false
  }
  render() {
    return (
      <View style = {styles.container}>
        <Modal          
          animationType = {"fade"}
          transparent = {false}
          visible = {this.state.isVisible}
          onRequestClose = {() =>{ console.log("Modal has been closed.") } }>
          {/*All views of Modal*/}
              <View style = {styles.modal}>
              <Text style = {styles.text}>Modal is open!</Text>
              <Button title="Click To Close Modal" onPress = {() => {
                  this.setState({ isVisible:!this.state.isVisible})}}/>
          </View>
        </Modal>
        {/*Button will change state to true and view will re-render*/}
        <Button 
           title="Click To Open Modal" 
           onPress = {() => {this.setState({ isVisible: true})}}
        />
      </View>
    );
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    alignItems: 'center',
    justifyContent: 'center',
    backgroundColor: '#ecf0f1',
  },
  modal: {
  justifyContent: 'center',
  alignItems: 'center', 
  backgroundColor : "#00BCD4", 
  height: 300 ,
  width: '80%',
  borderRadius:10,
  borderWidth: 1,
  borderColor: '#fff',  
  marginTop: 80,
  marginLeft: 40,
 
   },
   text: {
      color: '#3f2949',
      marginTop: 10
   }
});

Output: