A pure JavaScript React Native dialog

react-native-dialog

A pure JavaScript React-Native dialog that follows closely the UI of its native counterpart while expanding its features.

Features

Support for iOS and Android (JavaScript API)
A flexible declarative API
Follows closely the UI of a native dialog/alert
Can be used both as an alert and as an input prompt
Can be injected with any component

Demo

Setup

Install the library using npm or yarn:

# using npm
$ npm install react-native-dialog --save

# using yarn
$ yarn add react-native-dialog

Usage

React-native-dialog exposes a set of components that can be used to build the UI of the dialog:

Dialog.Container: This component is the root component of the dialog and all the other components should be nested inside it.
Dialog.Title: A Text component styled as a native dialog title.
Dialog.Description: A Text component styled as a native dialog description.
Dialog.Button: A component styled as a native dialog button.
Dialog.Input: A TextInput component styled as a native dialog input.

Import react-native-dialog:

import Dialog from "react-native-dialog";

Create a dialog and nest its content inside of it:

render () {
    return (
      <View>
        <Dialog.Container>
          <Dialog.Title>Account delete</Dialog.Title>
          <Dialog.Description>
            Do you want to delete this account? You cannot undo this action.
          </Dialog.Description>
          <Dialog.Button label="Cancel" />
          <Dialog.Button label="Delete" />
        </Dialog.Container>
      </View>
    )
  }

Then simply show it by setting the visible prop to true:

render () {
    return (
      <View>
        <Dialog.Container visible={true}>
          <Dialog.Title>Account delete</Dialog.Title>
          <Dialog.Description>
            Do you want to delete this account? You cannot undo this action.
          </Dialog.Description>
          <Dialog.Button label="Cancel" />
          <Dialog.Button label="Delete" />
        </Dialog.Container>
      </View>
    )
  }

The visible prop is the only prop you'll really need to make the dialog work: you should control this prop value by saving it in your state and setting it to true or false when needed.

A complete example

The following example consists in a component (DialogTester) with a button and a dialog.
The dialog is controlled by the dialogVisible state variable and it is initially hidden, since its value is false.
Pressing the button sets dialogVisible to true, making the dialog visible.
Inside the dialog there are two button that, when pressed, sets dialogVisible to false, hiding the dialog.

import React, { Component } from "react";
import { Text, TouchableOpacity, View } from "react-native";
import Dialog from "react-native-dialog";

export default class DialogTester extends Component {
  state = {
    dialogVisible: false
  };

  showDialog = () => {
    this.setState({ dialogVisible: true });
  };

  handleCancel = () => {
    this.setState({ dialogVisible: false });
  };

  handleDelete = () => {
    // The user has pressed the "Delete" button, so here you can do your own logic.
    // ...Your logic
    this.setState({ dialogVisible: false });
  };

  render() {
    return (
      <View>
        <TouchableOpacity onPress={this.showDialog}>
          <Text>Show Dialog</Text>
        </TouchableOpacity>
        <Dialog visible={true}>
          <Dialog.Title>Account delete</Dialog.Title>
          <Dialog.Description>
            Do you want to delete this account? You cannot undo this action.
          </Dialog.Description>
          <Dialog.Button label="Cancel" onPress={this.handleCancel} />
          <Dialog.Button label="Delete" onPress={this.handleDelete} />
        </Dialog>
      </View>
    );
  }
}

Available props

Dialog.Button props

Name	Type	Default	Description
label	string	REQUIRED	The label text
color	string	`#007ff9` on iOS, `#169689` on Android	The label color
bold	bool	false	Show the label with a bold font weight?
disabled	bool	false	Disable the button?
onPress	func	REQUIRED	Called when the button is pressed

Dialog.Description props

Name	Type	Default	Description
children	string	REQUIRED	The description text

Dialog.Container props

Name	Type	Default	Description
blurComponentIOS	node	A low-opacity	The blur component used in iOS
visible	bool	REQUIRED	Show the dialog?
children	node	REQUIRED	The dialog content

Dialog.Input props

Name	Type	Default	Description
label	string	undefined	The input floating label
wrapperStyle	any	undefined	The style applied to the input wrapper View

Dialog.Title props

Name	Type	Default	Description
children	string	REQUIRED	The title text

TODO

Handle the UI for more than 2 iOS buttons
Add even more components (a Picker for example)
Add a documentation for implementing expo's BlurView
Try to get as close as possible to the native dialogs

Frequently Asked Questions

How can I use a custom blur component as the dialog background on iOS?

To achieve a look even closer to the native iOS dialog you can provide your own component in the blurComponentIOS prop of a Dialog.Container and it will be injected in the dialog to be used as a background.
The blurComponentIOS can be useful for example if you want to apply native blur effect to the dialog.
Here is an example using react-native-blur:

render() {
  const blurComponentIOS = (
    <BlurView
      style={StyleSheet.absoluteFill}
      blurType="xlight"
      blurAmount={50}
    />
  )
  return (
    <View style={styles.container}>
      <Dialog.Container
        visible={this.state.dialogVisible}
        blurComponentIOS={blurComponentIOS}
      >
        <Dialog.Title>Account delete</Dialog.Title>
        <Dialog.Description>
          Do you want to delete this account? You cannot undo this action.
        </Dialog.Description>
        <Dialog.Button label="Cancel" onPress={this.handleCancel} />
        <Dialog.Button label="Delete" onPress={this.handleConfirm} />
      </Dialog.Container>
    </View>
  );
}