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React Native ScrollView component onScroll prop function is delayed

I am using react-native-paper library to add a floating action button (FAB) which changes its width based on the scroll direction of the user.
What it's supposed to do -
If the user is scrolling upward expand the FAB instantly and contract on scrolling downward.
What's happening -
It is giving me the desired results but for some reason its take 3-4 seconds for the effect to take place.
Code -
import React from "react";
import { SafeAreaView, ScrollView } from "react-native";
import { AnimatedFAB } from "react-native-paper";
import Carousel from "../../components/carousel";
import Slider from "../../components/slider";
const HomePage = () => {
const [isExtended, setIsExtended] = React.useState(true);
function onScroll({ nativeEvent }: any) {
const currentScrollPosition =
Math.floor(nativeEvent?.contentOffset?.y) ?? 0;
setIsExtended(currentScrollPosition <= 0);
}
const categories = [
"Fruits",
"Cars",
"Places",
"Brands",
"Colors",
"Shapes",
"Sizes",
"Names",
];
return (
<SafeAreaView>
<ScrollView onScroll={onScroll}>
<Carousel />
{categories.map((item, index) => (
<Slider key={index} title={item} />
))}
</ScrollView>
<AnimatedFAB
style={{
position: "absolute",
bottom: 20,
right: 20,
}}
icon="filter-variant"
label="Filter"
animateFrom="right"
extended={isExtended}
onPress={() => console.log("Pressed")}
/>
</SafeAreaView>
);
};
export default HomePage;
Here is how the Sliders/Carousel looks [they share similar code]
import React from "react";
import { FlatList, StyleSheet, View, SafeAreaView } from "react-native";
import { Text } from "react-native-paper";
import data from "../../../data";
import Card from "../card";
const Slider = ({ title }: any) => {
const renderItem = ({ item }: any) => <Card item={item} />;
return (
<SafeAreaView>
<View style={styles.container}>
<Text style={styles.itemTitle}>{title}</Text>
<FlatList
showsVerticalScrollIndicator={false}
showsHorizontalScrollIndicator={false}
horizontal
data={data}
renderItem={renderItem}
keyExtractor={(_, index) => index.toString()}
/>
</View>
</SafeAreaView>
);
};
const styles = StyleSheet.create({
container: {
margin: 20,
},
itemTitle: {
color: "#fff",
marginBottom: 20,
fontSize: 20,
fontWeight: "500",
},
title: {
fontSize: 32,
},
});
export default Slider;
Solutions i tried -
I tried using the useEffect hook but didn’t notice a significant change.
I tried using the Flatlist component but the issue remains the same.

You can add scrollEventThrottle={16} prop to ScrollView or FlatList

How to remove focus from a React Native TextInput on button click?

I have a React Native textInput and a button and I would like to remove the focus from the textInput if I were to click on the button. Would that be possible?
My TextInput looks like this:
<TextInput
onChangeText={onChange}
value={searchQuery}
placeholder="Start typing to search or add your own"
maxLength={80}
onFocus={() => {
setIsInputFocused(true);
}}
onBlur={() => {
setIsInputFocused(false);
setSearchQuery('');
}}
blurOnSubmit={true}
/>
And then I have a pressable element:
<View onPress={() => { //remove focus from Text Input }></View>

The useImperativeHandle hook is the one you need here, And forwardRef, useRef hooks. I have created a new TextInput called ControlledTextInput to pass a react ref to it and expose the blur method outside (App component level). Note that there are two refs one is coming as a prop(to which we bind the functions) and the one inside ControlledTextInput(which is the ref to the actual text input)
import React, { useImperativeHandle, forwardRef, useRef } from "react";
import { StyleSheet, Text, View, TextInput, Button } from "react-native";
const ControlledTextInput = forwardRef((props, ref) => {
const internalInputRef = useRef();
useImperativeHandle(ref, () => ({
blur: () => {
internalInputRef.current.blur();
}
}));
return (
<TextInput
placeholder={"Type something"}
style={styles.textInputStyle}
ref={internalInputRef}
/>
);
});
const App = () => {
const inputRef = useRef(null);
return (
<View style={styles.app}>
<View style={styles.header}>
<Text style={styles.title}>Focus lose when button click</Text>
</View>
<ControlledTextInput ref={inputRef} />
<Button title="Click ME" onPress={() => inputRef.current.blur()} />
</View>
);
};
const styles = StyleSheet.create({
app: {
marginHorizontal: "auto",
maxWidth: 500
},
header: {
padding: 20
},
title: {
fontWeight: "bold",
fontSize: "1.5rem",
marginVertical: "1em",
textAlign: "center"
},
textInputStyle: {
border: "2px solid black",
maxWidth: 500,
height: 50,
textAlign: "center",
fontSize: 20
}
});
export default App;
React Native Codesandox:

How to move label along with slider value in React Native

I am working on a React Native Project, I want to move the label along with the slider value. I tried many ways but its not working accurately.
Here is my code:
import React, { useState } from 'react'
import { Text, StyleSheet, View, Dimensions } from 'react-native'
import Slider from '#react-native-community/slider';
function LabelSlider() {
const windowWidth = Dimensions.get('window').width;
const [value, setValue] = useState(0)
// const left = value * (windowWidth-60)/85;
const [showValue, setShowValue] = useState(false)
//var percent = (percentToGet / 100) * number;
return (
<View>
{showValue ?
<View >
<Text style={{ width:50, textAlign: 'auto', left: value}}>{value}</Text>
</View> :
<></>}
<Slider
style={{ width: 200, height: 40 }}
maximumValue={300}
minimumValue={0}
step={1}
value={value}
onValueChange={(value) => setValue(value)}
onSlidingStart={() => setShowValue(true)}
onSlidingComplete={() => setShowValue(true)}
minimumTrackTintColor="#FFFFFF"
maximumTrackTintColor="#000000"
/>
</View>
)
}
export { LabelSlider }
I have also attached two images of the output I was able to get:
Image 1,
Image 2

You can use a shared value and interpolate the left position for the label.
Right now what happens is, that the left value goes from 0 to 300. This makes the label unresponsive. You can do something as shown below.
Also, here's a Snack for the implementation.
import * as React from 'react';
import { Text, View, StyleSheet } from 'react-native';
import Slider from '#react-native-community/slider';
import Animated, {
useSharedValue,
useAnimatedStyle,
interpolate,
Extrapolate,
} from 'react-native-reanimated';
// Constants
const MAX_SLIDER_VALUE = 300;
const MIN_SLIDER_VALUE = 0;
const SLIDER_WIDTH = 200;
export default function App() {
// State to store progress value of slider
const [value, setValue] = React.useState(0);
// Shared value for storing label position
const progress = useSharedValue(0);
// Whenever `value` changes, update the progress shared value
// This will accordingly update the left position of the label
React.useEffect(() => {
progress.value = value;
}, [value]);
// Animate the left position according to the shared value
// Also Extrapolate it so that it doesn't exceed 100%
const animatedStyle = useAnimatedStyle(() => {
const leftPosition = interpolate(
progress.value,
[MIN_SLIDER_VALUE, MAX_SLIDER_VALUE],
[0, 100],
Extrapolate.CLAMP
);
return {
left: `${leftPosition}%`,
};
});
return (
<View style={styles.container}>
<View style={{ width: SLIDER_WIDTH }}>
<Animated.View style={[styles.labelView, animatedStyle]}>
<Text>{value}</Text>
</Animated.View>
<Slider
style={{ width: SLIDER_WIDTH, height: 40 }}
maximumValue={MAX_SLIDER_VALUE}
minimumValue={MIN_SLIDER_VALUE}
step={1}
value={value}
onValueChange={setValue}
minimumTrackTintColor="#FFFFFF"
maximumTrackTintColor="#000000"
/>
</View>
</View>
);
}
const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#ecf0f1',
padding: 8,
},
labelView: {
marginBottom: 20,
},
});

You can use react native element slider for this, I have given the example code below
import React from 'react';
import { View } from 'react-native';
import {Slider} from 'react-native-elements';
const App = () => {
return (
<View
style={{
flex: 1,
justifyContent: "center",
}}>
<Slider
thumbStyle={{height: 15, width: 15, backgroundColor: 'orange'}}
maximumTrackTintColor="grey"
minimumTrackTintColor="orange"
thumbProps={{
children: (
<View
style={{
color: 'green',
marginTop: -22,
width: 100,
}}>
<Text>Value</Text>
</View>
),
}}
/>
</View>
)
}
export default App;

react native button style not working

I'm using react native to create a test App, There is no effect on a button when I do styling. can anyone tell me what I am doing wrong.
For example, I am trying to put red color to a button but it is not working.
What can I do to make it right?
import React, { Component } from 'react'
import {
AppRegistry,
StyleSheet,
Text,
Button,
ScrollView,
Dimensions,
PanResponder,
Animated,
View
} from 'react-native'
import { StackNavigator } from 'react-navigation'
class Home extends Component{
static navigationOptions = {
title:'Home'
};
componentWillMount(){
this.animatedValue = new Animated.ValueXY();
this._value = {x:0 , y:0}
this.animatedValue.addListener((value) => this._value = value);
this.panResponder = PanResponder.create({
onStartShouldSetPanResponder: (evt, gestureState) => true,
onMoveShouldSetPanResponder: (evt, gestureState) => true,
onPanResponderGrant: (e, gestureState) => {
this.animatedValue.setOffset({
x:this._value.x,
y:this._value.y,
})
this.animatedValue.setValue({x:0 , y:0})
},
onPanResponderMove:Animated.event([
null,{dx: this.animatedValue.x , dy:this.animatedValue.y}
]),
onPanResponderRelease: (e, gestureState) => {
},
})
}
render(){
var animatedStyle = {
transform:this.animatedValue.getTranslateTransform()
}
return(
<View style={styles.container}>
<Button
style={styles.button}
title="Login"
onPress={() => this.props.navigation.navigate("Login")} />
</View>
)
}
}
class Login extends Component{
static navigationOptions = {
title:'Login'
};
render(){
return(
<View>
<Text>home</Text>
</View>
)
}
}
const App = StackNavigator({
Home:{ screen: Home},
Login:{ screen:Login}
});
var styles = StyleSheet.create({
container: {
},
button:{
color:'red'
}
});
export default App

You cannot apply color to a button using stylesheet.
Checkout the link here
It has to be given inline. It is a property of button, its not like style attribute unlike tags like View and Text, where stylesheet applies.
If you give some style to your view container it will work, but not with button as its it not supported that way.
Solution :
<View style={styles.container}>
<Button
title="Login"
color="red"
onPress={() => this.props.navigation.navigate("Login")} />
</View>
Hope that helps!

If your button doesn't look right for your app, you can build your own button using TouchableOpacity or TouchableNativeFeedback. For inspiration, look at the source code for this button component. Or, take a look at the wide variety of button components built by the community.
Look this:
<TouchableOpacity
style={[styles.buttonLargeContainer, styles.primaryButton]}
onPress={() => {}}>
<Text style={styles.buttonText}>SEND TO AUCTION?</Text>
</TouchableOpacity>
const styles = StyleSheet.create({
buttonLargeContainer: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
marginRight: 10
},
primaryButton: {
backgroundColor: '#FF0017',
},
buttonText: {
color: 'white',
fontSize: 14,
fontWeight: 'bold'
}
})

Close react native modal by clicking on overlay?

Is it possible to close react native modal by clicking on overlay when transparent option is true? Documentation doesn't provide anything about it. Is it possible?

If I understood correctly, you want to close the modal when the user clicks outside of it, right ?
If yes, I searched for this some time ago and the only solution that I remember was this one (which is the one that
I've been using so far):
render() {
if (!this.state.modalVisible)
return null
return (
<View>
<Modal
animationType="fade"
transparent={true}
visible={this.state.modalVisible}
onRequestClose={() => {this.setModalVisible(false)}}
>
<TouchableOpacity
style={styles.container}
activeOpacity={1}
onPressOut={() => {this.setModalVisible(false)}}
>
<ScrollView
directionalLockEnabled={true}
contentContainerStyle={styles.scrollModal}
>
<TouchableWithoutFeedback>
<View style={styles.modalContainer}>
// Here you put the content of your modal.
</View>
</TouchableWithoutFeedback>
</ScrollView>
</TouchableOpacity>
</Modal>
</View>
)
}
// Then on setModalVisible(), you do everything that you need to do when closing or opening the modal.
setModalVisible(visible) {
this.setState({
modalVisible: visible,
})
}
Explanation
This is basically using a TouchableOpacity in the whole screen to get when the user clicks to close the modal. The TouchableWithoutFeedback is to avoid the TouchableOpacity to work inside of the Modal.
If you have a better solution, please share here.

Another solution:
// Modal.js
import React from 'react';
import {
TouchableWithoutFeedback,
StyleSheet,
Modal,
View,
} from 'react-native';
import t from 'prop-types';
class MyModal extends React.Component {
static propTypes = {
children: t.node.isRequired,
visible: t.bool.isRequired,
dismiss: t.func.isRequired,
transparent: t.bool,
animationType: t.string,
};
static defaultProps = {
animationType: 'none',
transparent: true,
};
render() {
const { props } = this;
return (
<View>
<Modal
visible={props.visible}
transparent={props.transparent}
onRequestClose={props.dismiss}
animationType={props.animationType}
>
<TouchableWithoutFeedback onPress={props.dismiss}>
<View style={styles.modalOverlay} />
</TouchableWithoutFeedback>
<View style={styles.modalContent}>
{props.children}
</View>
</Modal>
</View>
);
}
}
const styles = StyleSheet.create({
modalContent: {
flex: 1,
justifyContent: 'center',
margin: '5%',
},
modalOverlay: {
position: 'absolute',
top: 0,
bottom: 0,
left: 0,
right: 0,
backgroundColor: 'rgba(0,0,0,0.5)'
},
});
export default MyModal;
Usage example:
// SomeScreen.js
import React from 'react';
import { View, Text, Button } from 'react-native';
import Modal from './Modal';
class SomeScreen extends React.Component {
state = {
isModalVisible: false,
};
showModal = () => this.setState({ isModalVisible: true });
hideModal = () => this.setState({ isModalVisible: false });
render() {
return (
<View>
<Button onPress={this.showModal} />
<Modal
visible={this.state.isModalVisible}
dismiss={this.hideModal}
>
<Text>Hello, I am modal</Text>
</Modal>
</View>
);
}
}

Simple solution. You need one touchableOpacity for clicking outside and another touchableOpacity for actual modal that will do nothing onPress.
import React, { Component } from 'react'
import { View, StyleSheet, TouchableOpacity, Modal} from 'react-native';
export class Modal extends Component {
constructor(props){
this.state = { modalVisible : true}
}
render() {
return (
<View>
<Modal
animationType="slide"
transparent={true}
visible={this.state.modalVisible}
onRequestClose={() => { this.setState({modalVisible: false})
}}
>
<TouchableOpacity style={styles.modalContainer} onPress={() => { this.setState({ modalVisible : false})}}>
<TouchableOpacity style={styles.modal} onPress={() => console.log('do nothing')} activeOpacity={1} >
Modal Content...
</TouchableOpacity>
</TouchableOpacity>
</Modal>
</View>
)
}
}
const styles = StyleSheet.create({
modalContainer: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
},
modal: {
width: 155,
height: 300
},
});
export default Modal;
activeOpacity={1} just removes touchableOpacity fade effect

We can work it out by adding:
import { TouchableOpacity } from 'react-native';
<TouchableOpacity onPress={()=>this.setState({modalVisibilty:false})}>
<View style={{opacity:0, flex:1 }}/>
</TouchableOpacity>
under the window and another one above and change the layout style to fit your screen.
Explanation:
You will make 2 big hidden buttons to catch the user touch and change the modal visibility state to false.

Here is my simple implementation:
<TouchableWithoutFeedback onPress={}> // Code to close your modal goes here
<View style={styles.background}> // The view to drawn the background
<View
onStartShouldSetResponder={() => true}
style={styles.container}
> // The view to drawn your modal
// Your content
</View>
</Androw>
</View>
</TouchableWithoutFeedback>
I use TouchableWithoutFeedback since i do not want to change the background color when clicking on it. I also added onStartShouldSetResponder on the modal view to prevent closing the modal when you click inside the view.
I am also not using the Modal component because i done it using react-navigation.

I tried to implement some of the suggested answers, however none worked with buttons inside modal.
I was googling around and found out that instead of using TouchableWithoutFeedback, native component called Pressable allows you to check what you click on, therefore allows you to close only when clicked on it and not it's children.
return (
<View>
<Modal
animationType="slide"
transparent={true}
visible={visible}
onRequestClose={() => {
setVisible(false)}}
>
<Pressable
onPress={(event) => event.target == event.currentTarget && setVisible(false)}
style={styles.background}
>
<View style={styles.modal}>
//Content of the modal
</View>
</Pressable>
</Modal>
</View>
)
Found the answer here.

<Modal isVisible={this.state.isVisible}
onBackdropPress={() => this.setState({ isVisible: false })}>
<View style={{ flex: 1 }}>
<Text>I am the modal content!</Text>
</View>
</Modal>

<Modal
animationType="slide"
closeOnClick={true}
transparent={true}
visible={this.state.modalVisible}
>
<TouchableOpacity onPress={() => { this.setModalVisible(!this.state.modalVisible)}} style={{flex:1, justifyContent:'center', alignItems:'center',}}>
<View style={{flex:0.2,backgroundColor:'white', margin:20, borderRadius:20, borderWidth:2, borderColor:'gray'}}>
<Text style={{margin:20}}>모달 테스트</Text>
</View>
</TouchableOpacity>
</Modal>
this code is my solution.

The best and easy way to do it using TouchableWithoutFeedback and Modal of react-native is
<Modal
visible={visible}//modal visible true or false
onRequestClose={()=>onClose(false)} // function to close modal
transparent={true}
>
<TouchableWithoutFeedback
onPress={()=>onClose(false)}//outer button/view
<View style={{flex:1, backgroundColor:'rgba(0,0,0,0.5)'}}>//for transparent view, this is outer view
<TouchableWithoutFeedback>// outer button so any child view can be added
<View>// this inner view
<View>
//your content goes here
</View>
</View>
</TouchableWithoutFeedback>
</View>
</TouchableWithoutFeedback>
</Modal>
if you want to add flatlist better to provide height so the content won't go out of view

Simple solution with simple code, if you are using expo.
Here is a complete component which can you just copy and paste and get it working.
//MyModal.js
import React from 'react';
import { BlurView } from 'expo-blur';
import { View, StyleSheet, Modal, TouchableWithoutFeedback } from 'react-native';
export const MyModal = ({ children, visible, onRequestClose, onPressOverlay, }) => {
return (
<Modal
visible={visible}
transparent
animationType='none'
onRequestClose={onRequestClose}
>
<TouchableWithoutFeedback onPress={onPressOverlay}>
<BlurView
style={{ ...StyleSheet.absoluteFill }}
tint='dark'
intensity={100}
/>
</TouchableWithoutFeedback>
<View style={styles.container}>
{children}
</View>
</Modal>
);
};
const styles = StyleSheet.create({
container: {
height: '100%',
width: '100%',
flexDirection: 'column',
alignItems: 'center',
justifyContent: 'center',
},
});
Now you can import it into your work-space and use it like this.
I'm using functional component and useState hook to show or hide the modal.
//yourScreen.js
import React, { useState } from 'react';
import { View, Button } from 'react-native';
import { MyModal } form './path/to/MyModal.js';
const YourScreen = () => {
const [modalVisible, setModalVisible] = useState(false);
return (
<View style={{ flex:1 }}>
<MyModal
visible={modalVisible}
onRequestClose={()=>{
setModalVisible(false);
}}
onPressOverlay={()=>{
setModalVisible(!modalVisible);
}}
>
// your modal content goes here
</MyModal>
<Button
title='Show Modal'
onPress={()=>{
setModalVisible(!modalVisible);
}}
/>
</View>
);
}
export default YourScreen;

Here is my solution,
import React from "react";
import {Modal, StyleSheet, TouchableOpacity, TouchableWithoutFeedback, View} from "react-native";
// make sure the styles props is passed to the model and contains modalContainer, as well as the childrenContainer style objects.
export default class DismissibleModal extends React.Component {
render() {
return (
<Modal
animationType="slide"
transparent={true}
visible={this.props.visible}
onRequestClose={() => {this.props.dismiss()}}>
<TouchableOpacity
style={Styles.modal}
activeOpacity={1}
onPressOut={() => {this.props.dismiss()}}>
<View style={[this.props.styles.modalContainer]}>
<TouchableWithoutFeedback>
<View style={[this.props.styles.childrenContainer]}>
{this.props.children}
</View>
</TouchableWithoutFeedback>
</View>
</TouchableOpacity>
</Modal>
)
}
}
const Styles = StyleSheet.create({
modal: {
flex: 1,
backgroundColor: 'transparent',
flexDirection: 'row',
justifyContent: 'center',
alignItems: 'center'
},
modalView: {
backgroundColor: "white",
borderRadius: 10,
padding: 20,
paddingTop: 20,
alignItems: "center",
shadowColor: "#000",
shadowOffset: {
width: 0,
height: 9,
},
shadowOpacity: 0.50,
shadowRadius: 12.35,
elevation: 19,
},
});

#Gui Herzog answer are quite good, but makingTouchableOpacity as a parent component, it deals with conflict when it comes touching child component.
it's not good practice having a multiple component inside of TouchableOpacity, else all component inside TouchableOpacity parent will be clickable, best way to address this problem is, make your TouchableOpacity component in absolute position, with 100% width and height in screen.
here's some example:
Modal.js
export default function(props){
const { width, height } = Dimensions.get('window');
const hp = hp => (hp / 100) * height;
const wp = wp => (wp / 100) * width;
const size = size => Math.round((size / 100) * width);
return (
<KeyboardAvoidingView>
<TouchableOpacity
style={{ position: 'absolute', width: wp(100), height: hp(100) }}
onPress={props.onTouchOutSide}
/>
<ScrollView>
{/*...child*/}
</ScrollView>
</KeyboardAvoidingView>
)
}
You Welcome.

Here is the best solution for you just copy and paste. It will work definitely.
I also facing problem Here is the solution.
import React,{useState} from 'react';
import{Button,StyleSheet,View,TouchableOpacity,Modal} from 'react-native';
const App=()=>{
const [show, setShow] = useState(false);
return (
<View>
<TouchableOpacity style={{marginTop:200}}>
<Button title='show' onPress={()=>setShow(!show)}/>
</TouchableOpacity>
<Modal transparent={true} visible={show} animationType="slide">
<TouchableOpacity activeOpacity={1} style={{backgroundColor:'#000000aa',flex:1}} onPress={()=>setShow(!show)}/>
<View style={{backgroundColor:'#FFFFFF',flex: 1}}>
<View >
<Button title='close' onPress={()=>setShow(!show)}/>
</View>
</View>
</Modal>
</View>
)};
export default App;
You Can Check Another Example Here Also:
https://snack.expo.dev/#saurabh_chavan/model-with-border-radius

If you are using store solution like mobx or redux,
you can simply solve with the flag on store.
Below is the parent's code,
<Modal
animationType="fade"
transparent={true}
visible={uiControlStore.dialogVisible}
onRequestClose={() => {
uiControlStore.dialogVisible = false;
}}
>
<View
style={{ flex: 1, alignItems: 'center', justifyContent: 'center', backgroundColor: 'rgba(0,0,0,0.6)' }}
onTouchStart={() => {
if (!uiControlStore.childClicked) uiControlStore.dialogVisible = false;
uiControlStore.childClicked= false;
}}
>
<YourCustomDialog />
</View>
</Modal>
and below is child's code. (using mobx)
const YourCustomDialog: React.FC = observer(() => {
const { uiControlStore } = useStores();
return (
<View
style={[styles.container, styles.border]}
onTouchStart={() => {
uiControlStore.childClicked= true;
}}
>
...
)
}

I realize I'm very late to this party. But I just stumbled upon this thread and Gui Herzog's answer was exactly what I was looking for. If you don't want to add any outside dependencies that is the way to go. Thanks!
However, I wanted to include some optional negative/positive action buttons in my component and grabbed them from react-native-paper for the material style.
That's when I realized react-native-paper probably have modals as well.
Here's their documentation:
https://callstack.github.io/react-native-paper/modal.html
They also have a component for Dialogs
https://callstack.github.io/react-native-paper/dialog.html
So I ended up with using the paper Dialog and it's well worth if if you're going to use the library throughout you app. Both Dialog and Modal handles the dismiss on click outside by default.
Here's a Dialog component created before realizing the Dialog component already exists.
I'll leave what I implemented here anyways as I think its a good template.
The component is in typescript. Make sure to have #types/react-native updated otherwise you might see some "No overload matches this call" errors.
import React from 'react';
import {View, Text, StyleSheet} from 'react-native';
import {Button, Modal, Portal} from 'react-native-paper';
interface Action {
action: () => void;
text: string;
}
interface Props {
closePressed: () => void;
negativeAction?: Action;
positiveAction?: Action;
title?: string;
text: string;
visible: boolean;
}
export const Dialog: React.FC<Props> = ({
closePressed,
negativeAction,
positiveAction,
title,
text,
visible,
}) => {
return (
<Portal>
<Modal
visible={visible}
onDismiss={closePressed}
contentContainerStyle={styles.modalContainer}>
<View style={styles.header}>
{title && (
<Text style={{fontWeight: 'bold', fontSize: 18, marginBottom: 10}}>
{title}
</Text>
)}
<Text style={styles.contentText}>{text}</Text>
</View>
<View style={styles.buttonContainer}>
{negativeAction && (
<Button mode="text" onPress={negativeAction.action}>
{negativeAction.text}
</Button>
)}
{positiveAction && (
<Button mode="text" onPress={positiveAction.action}>
{positiveAction.text}
</Button>
)}
</View>
</Modal>
</Portal>
);
};
const styles = StyleSheet.create({
modalContainer: {
borderRadius: 5,
backgroundColor: 'white',
padding: 10,
margin: 20,
},
header: {padding: 20},
contentText: {color: 'grey'},
buttonContainer: {
flexDirection: 'row',
justifyContent: 'flex-end',
paddingTop: 20,
},
});

Here is my perfectly working solution
MODAL CODE:
const ListInModal = ({ showListModal, onClose, data, onSelectItem }) => {
return (
<Modal animationType="none" transparent={true} visible={showListModal} onRequestClose={() => onClose(false)}>
<TouchableOpacity onPress={() => onClose(false)} style={styles.centeredView}>
<View style={styles.modalView}>
<ScrollView showsVerticalScrollIndicator={false}>
{data.map((item, index) => (
<>
<TouchableOpacity
onPress={() => {
onSelectItem(item);
onClose(false);
}}
style={{ height: 43, justifyContent: 'center' }}
>
<Text style={styles.itemLabel}>{item.label}</Text>
</TouchableOpacity>
{index <= data.length - 2 && (
<View
style={{
borderBottomColor: colors.white,
opacity: 0.2,
borderWidth: 1,
marginHorizontal: (24 / 375) * screenWidth,
}}
/>
)}
</>
))}
</ScrollView>
</View>
</TouchableOpacity>
</Modal>
);
};
STYLING:
const styles = StyleSheet.create({
centeredView: {
flex: 1,
justifyContent: 'center',
backgroundColor: '#00000099',
},
modalView: {
marginHorizontal: wp('5%'),
marginVertical: hp('10%'),
backgroundColor: colors.popupBlack,
borderRadius: 20,
shadowColor: '#000',
shadowOffset: {
width: 0,
height: 2,
},
shadowOpacity: 0.25,
shadowRadius: 3.84,
elevation: 5,
},
itemLabel: {
fontSize: wp('5%'),
color: colors.white,
paddingHorizontal: (24 / 375) * screenWidth,
},
});
USAGE:
<ListInModal
data={projectState?.lvApplicationTypeList}
showListModal={showListModal}
onClose={(bool) => setshowListModal(bool)}
onSelectItem={(item) => onPressApplicationType(item.label)}
/>

I made it like this.
<Modal
visible={isVisible}
onRequestClose={() => setIsVisible(false)}
transparent={true}
>
<Pressable style={{
flex:1,
backgroundColor:'transparent',
}}
onPress={()=>setIsVisible(false)}
/>
{/* Here comes your component*/}
</Modal>
make your component with position:absoute so Pressable can cover the whole background.

#idiosync/react-native-modal is a hook based modal system.
https://www.npmjs.com/package/#idiosync/react-native-modal
You can add a onBackgroundPress function to the config object to achieve what you want:
useModal(
{
// all config params are optional apart from renderModal
renderModal: () => <MyModal onClose={() => setModalIsVisible(false)} someProp={someProp} />,
onBackgroundPress: () => setModalIsVisible(false),
animationTypeIn: AnimationType.SLIDE_TOP,
},
modalIsVisible,
[someProp] // dependencies array to trigger rerenders. Empty array is passed by default
)

2022 Answer - Using React Native Hooks
to Close a React Native Modal by clicking an Overlay is best done by using a Pressable button and TouchableOpacity
Example Below...
Import the Pressable and others from react-native
import React, { useState } from 'react';
import {
Pressable,
View,
Text,
TouchableOpacity,
ScrollView,
Modal,
TextInput,
StyleSheet,
} from 'react-native';
Then Set a State
const [modalVisible, setModalVisible] = useState(false);
Then Write and Design Your Modal
<Modal
animationType="slide"
transparent={true}
visible={modalVisible}
onRequestClose={() => {
setModalVisible(!modalVisible);
}}
>
<TouchableOpacity
onPress={() => setModalVisible(false)}
style={styles.modalContainerStyle}
>
<Pressable
onPress={() => setModalVisible(true)}
style={styles.modalContent}
>
<ScrollView>
<View>
<Text style={styles.modalTitle}>TITLE HERE</Text>
<Text style={styles.modalText}>
OTHER SMALLER TEXT HERE
</Text>
<Text style={styles.modalFormText}>AN INPUT</Text>
<TextInput
style={styles.modalInput}
value={inputValue}
onChangeText={(inputValue) => handleInputValue(inputValue)}
placeholder={'example#email.com'}
/>
<View style={styles.btnView}>
<TouchableOpacity
onPress={() => setModalVisible(!modalVisible)}
underlayColor="white"
>
<View style={styles.buttonProceed}>
<Text style={styles.buttonText}>NEXT</Text>
</View>
</TouchableOpacity>
</View>
</View>
</ScrollView>
</Pressable>
</TouchableOpacity>
</Modal>
Now To Open Your Modal (Using a Text Button)
<Pressable onPress={() => setModalVisible(!modalVisible)}>
<Text style={styles.openModal}>Open Modal</Text>
</Pressable>
Finally Style Your Modal
modalContainerStyle: {
flex: 1,
flexDirection: 'row',
justifyContent: 'space-around',
alignItems: 'flex-end',
backgroundColor: 'rgba(0, 0, 0, 0.3)',
},
modalContent: {
borderTopLeftRadius: 27,
borderTopRightRadius: 27,
width: '100%',
height: '60%',
backgroundColor: '#FFFFFF',
paddingLeft: 33,
paddingRight: 33,
overflow: 'hidden',
},
modalTitle: {
marginTop: 43,
marginBottom: 14,
fontSize: 19,
lineHeight: 21,
color: 'black',
fontFamily: 'GraphikBold',
},
modalText: {
fontSize: 15,
lineHeight: 25,
marginBottom: 38,
color: 'black',
fontFamily: 'GraphikRegular',
},
modalFormText: {
marginBottom: 10,
fontSize: 15,
color: 'black',
fontFamily: 'GraphikMedium',
},
modalInput: {
marginBottom: 99,
height: 44,
paddingLeft: 17,
paddingRight: 17,
fontSize: 16,
borderRadius: 10,
marginBottom: 20,
borderWidth: 1,
fontFamily: 'GraphikRegular',
borderColor: 'rgba(118, 118, 118, 0.17)',
},
openModal: {
marginRight: 5,
textAlign: 'right',
color: '#ED2125',
fontFamily: 'GraphikMedium',
},

recently faced the issue, tried solving it using a two touchable opacity,
you can also turn off the closing on tapping anywhere behaviour by passing the isDismissable value to false.
import { View, Text, Modal, StyleSheet, TouchableOpacity } from 'react-native';
import React from 'react';
type PropType = {
open: boolean;
onClose: () => void;
isDismissable?: boolean;
children: JSX.Element | JSX.Element[];
};
const styles = StyleSheet.create({
modalRootContainer: {
flexGrow: 1,
},
outerContainer: {
height: '100%',
},
});
const BottomModal = ({
open,
onClose,
isDismissable = true,
children,
}: PropType) => {
return (
<Modal
visible={open}
transparent
onRequestClose={onClose}
animationType='slide'
>
<TouchableOpacity
style={styles.outerContainer}
activeOpacity={1}
onPress={() => {
if (isDismissable) onClose();
}}
>
<View style={styles.modalRootContainer}>
<TouchableOpacity activeOpacity={1}>{children}</TouchableOpacity>
</View>
</TouchableOpacity>
</Modal>
);
};
export default BottomModal;

*it's a very simple and effective solution I just applied it to my app and its works as I wanted.
just wrap your child component into TouchableOpacity
EXAMPLE:
<Modal
animationType="slide"
transparent={true}
visible={IsCamaraShow}
onRequestClose={() => {
setIsCamaraShow(!IsCamaraShow);
}}>
<View style={Styles.centeredView1}>
<TouchableOpacity style={Styles.centeredView1}
onPress={()=> setIsCamaraShow(!IsCamaraShow)}
activeOpacity={1}
>
<View style={Styles.modalView1}>
{cosnole.log( 'rest of your code') }
</View>
</TouchableOpacity>
</View>
</Modal>

Would recommend the following which worked well for me:
Use two <Pressable> components inside the modal
First one with opacity-1 and flex-1, no content and onPress that closes the modal
Second one with style according to how you want the modal content to show and text content inside
<Modal
animationType="slide"
transparent
visible={isModalVisible}
onRequestClose={() => setIsModalVisible(false)
>
<Pressable
onPress={() => setIsModalVisible(false)}
style={{flex: 1, opacity: 0}}
/>
<Pressable
style{{height: '25%', width: '100%', position: 'absolute', bottom: 0, justify-content: 'center', align-items: 'center'}}
>
<Text>Content of modal</Text>
</Pressable>
</Modal>

I have solved this in react native 0.64 by given below code
<Modal
isVisible={ModalVisible}
onBackdropPress={()=>{setModalVisible(false)}}
>
.
.
.
</Modal>

Hi I am using a lightweight popup react-native-easypopup it also closing itself when you tap out of popup.
npm i react-native-easypopup