import statements
import * as React from 'react';
import { StyleSheet, Text, View, Button } from 'react-native';
import Animated from 'react-native-reanimated';
import BottomSheet from 'reanimated-bottom-sheet';
main app function
export default function App() {
const renderContent = () => (
<View
style={{ backgroundColor: 'white', padding: 16, height: 450, }} >
<Text>Swipe down to close</Text>
</View>
const sheetRef = React.useRef(null);
const fall = new Animated.Value(1)
return (
<>
<View
style={{
flex: 1,
backgroundColor: 'papayawhip', alignItems: 'center', justifyContent: 'center',
}}
>
<Button title="Open Bottom Sheet" onPress={() => sheetRef.current.snapTo(0)} />
</View>
continue with bottom sheet code
<BottomSheet
ref={sheetRef}
snapPoints={[200, 0]}
initialSnap={1} borderRadius={20}
renderContent={renderContent}
callbackNode={fall}
enabledGestureInteraction={true}
/>
</>
)
}
I have set enabledGestureInteraction to true but still it is not working
I haven't used reanimated-bottom-sheet before. But looks like there is a problem with snapPoints property. It should be:
snapPoints={[0, 200]}
The package is out of date. I suggest you use this one instead: https://gorhom.github.io/react-native-bottom-sheet/
I'm using it in my project. It's awesome.
The solution I found for this is we have to wrap our components inside GestureHandlerRootView compnent from react-native-gesture-handler and we have to set it's style with flex:1
discussion ref link - https://github.com/gorhom/react-native-bottom-sheet/issues/775
I'm currently working on an React Native project. I need to implement a feature similar to "Swipe Down To close Modal" on Instagram
I believe that you're using #react-native-community/react-native-modal package. In the library documents, you can see that there is a property called swipeDirection which is either a string or an array that can be one or many of the following options; 'up', 'down', 'left' or 'right.
You can also set the threshold required swipe action to be completed by using swipeThreshold property. The default is 100 according to the library documents.
Here's an example of the modal;
import React from 'react';
import {View, Text} from 'react-native;
import Modal from 'react-native-modal';
const ModalComponent = props => {
const [isVisible, setIsVisible] = useState(true);
return (
<Modal isVisible={isVisible}
swipeDirection="down"
//swipeDirection={["up", "down", "left", "right"]}
onSwipeComplete={(e) => { setIsVisible(false); })
style={{ justifyContent: 'flex-end', margin: 0, }} >
<View style={{ backgroundColor: 'steelblue' }}>
<Text>Hello Modal</Text>
</View>
</Modal>
);
};
export {ModalComponent};
I was trying to position a button on the bottom right of the screen like the picture below:
So, basically I had a Scrollview with the button inside like so:
import React, { Component } from 'react'
import { ScrollView, Text, KeyboardAvoidingView,View,TouchableOpacity } from 'react-native'
import { connect } from 'react-redux'
import { Header } from 'react-navigation';
import CreditCardList from '../Components/credit-cards/CreditCardList';
import Icon from 'react-native-vector-icons/Ionicons';
import Button from '../Components/common/Button';
// Styles
import styles from './Styles/CreditCardScreenStyle'
import CreditCardScreenStyle from './Styles/CreditCardScreenStyle';
class CreditCardScreen extends Component {
render () {
return (
<ScrollView style={styles.container}>
<CreditCardList />
<TouchableOpacity style={CreditCardScreenStyle.buttonStyle}>
<Icon name="md-add" size={30} color="#01a699" />
</TouchableOpacity>
</ScrollView>
)
}
}
My styles:
import { StyleSheet } from 'react-native'
import { ApplicationStyles } from '../../Themes/'
export default StyleSheet.create({
...ApplicationStyles.screen,
container:{
marginTop: 50,
flex: 1,
flexDirection: 'column'
},
buttonStyle:{
width: 60,
height: 60,
borderRadius: 30,
alignSelf: 'flex-end',
// backgroundColor: '#ee6e73',
position: 'absolute',
bottom: 0,
// right: 10,
}
})
The problem is that the absolute positioning does not work at all when the button is inside the ScrollView. But...If I change the code to look like this:
import CreditCardScreenStyle from './Styles/CreditCardScreenStyle';
class CreditCardScreen extends Component {
render () {
return (
<View style={styles.container}>
<ScrollView >
<CreditCardList />
</ScrollView>
<TouchableOpacity style={CreditCardScreenStyle.buttonStyle}>
<Icon name="md-add" size={30} color="#01a699" />
</TouchableOpacity>
</View>
)
}
}
Then it works !! Whaat? Why? How? I don't understand why this is happening and I would appreciate any information about it.
This might be inconvenient but is just how RN works.
Basically anything that's inside the ScrollView (in the DOM/tree) will scroll with it. Why? Because <ScrollView> is actually a wrapper over a <View> that implements touch gestures.
When you're using position: absolute on an element inside the ScrollView, it gets absolute positioning relative to its first relative parent (just like on the web). Since we're talking RN, its first relative parent is always its first parent (default positioning is relative in RN). First parent, which in this case is the View that's wrapped inside the ScrollView.
So, the only way of having it "fixed" is taking it outside (in the tree) of the ScrollView, as this is what's actually done in real projects and what I've always done.
Cheers.
i suggest to use "react-native-modal".
you can not use position: 'absolute' to make elements full size in ScrollView
but you can do it by
putting that element in modal wrapper.
below are two examples. first one doesnt work but the second one works perfectly.
first way (doesnt work):
const app = () => {
const [position, setPosition] = useState('relative')
return(
<ScrollView>
<Element style={{position: position}}/>
<Button
title="make element fixed"
onPress={()=> setPosition('absolute')}
/>
</ScrollView>
)
}
second way (works perfectly):
const app = () => {
const [isModalVisible, setIsModalVisible] = useState(false)
return(
<ScrollView>
<Modal isModalVisible={isModalVisible}>
<Element style={{width: '100%', height: '100%'}}/>
</Modal>
<Button
title="make element fixed"
onPress={()=> setIsModalVisible(true)}
/>
</ScrollView>
)
}
for me this worked:
before:
<View>
<VideoSort FromHome={true} />
<StatisticShow style={{position:'absulote'}}/>
</View>
after:
<View>
<ScrollView>
<VideoSort FromHome={false} />
</ScrollView>
<View style={{position:'relative'}}>
<StatisticShow style={{position:'absulote'}}/>
</View>
</View>
On the following code:
where is defined the: this.props referenced on the first line inside the render() function? Is there any relationship between that lowercase: props variable with the capitalized Props type? any convention here?
what implication has: ...extends React.Component<Props>?
what implication has the /* #flow */ line on the very top of the file?
https://github.com/callstack/react-native-paper/blob/e4ca933f386d7b485f6580c332f0638a55dfe2db/example/src/CardExample.js#L27
/* #flow */
import * as React from 'react';
import { Alert, ScrollView, StyleSheet } from 'react-native';
import {
Title,
Caption,
Paragraph,
Card,
Button,
withTheme,
type Theme,
} from 'react-native-paper';
type Props = {
theme: Theme,
};
class CardExample extends React.Component<Props> {
static title = 'Card';
render() {
const {
theme: {
colors: { background },
},
} = this.props;
return (
<ScrollView
style={[styles.container, { backgroundColor: background }]}
contentContainerStyle={styles.content}
>
<Card style={styles.card}>
<Card.Cover source={require('../assets/wrecked-ship.jpg')} />
<Card.Content>
<Title>Abandoned Ship</Title>
<Paragraph>
The Abandoned Ship is a wrecked ship located on Route 108 in
Hoenn, originally being a ship named the S.S. Cactus. The second
part of the ship can only be accessed by using Dive and contains
the Scanner.
</Paragraph>
</Card.Content>
</Card>
<Card style={styles.card}>
<Card.Cover source={require('../assets/forest.jpg')} />
<Card.Actions>
<Button onPress={() => {}}>Share</Button>
<Button onPress={() => {}}>Explore</Button>
</Card.Actions>
</Card>
<Card style={styles.card}>
<Card.Content>
<Title>Berries</Title>
<Caption>Omega Ruby</Caption>
<Paragraph>
Dotted around the Hoenn region, you will find loamy soil, many of
which are housing berries. Once you have picked the berries, then
you have the ability to use that loamy soil to grow your own
berries. These can be any berry and will require attention to get
the best crop.
</Paragraph>
</Card.Content>
</Card>
<Card style={styles.card}>
<Title>Just Strawberries</Title>
<Card.Cover source={require('../assets/strawberries.jpg')} />
</Card>
<Card
style={styles.card}
onPress={() => {
Alert.alert('The Chameleon is Pressed');
}}
>
<Card.Cover source={require('../assets/chameleon.jpg')} />
<Card.Content>
<Title>Pressable Chameleon</Title>
<Paragraph>
This is a pressable chameleon. If you press me, I will alert.
</Paragraph>
</Card.Content>
</Card>
<Card
style={styles.card}
onLongPress={() => {
Alert.alert('The City is Long Pressed');
}}
>
<Card.Cover source={require('../assets/city.jpg')} />
<Card.Content>
<Title>Long Pressable City</Title>
<Paragraph>
This is a long press only city. If you long press me, I will
alert.
</Paragraph>
</Card.Content>
</Card>
</ScrollView>
);
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
},
content: {
padding: 4,
},
card: {
margin: 4,
},
});
export default withTheme(CardExample);
Could you give me some light on this?
References:
https://flow.org/en/docs/react/components/
Thanks!
props is defined in Component (is in base class) because you have FLOW this.props should have shape of Props )
You are extending base Component and you component can accept "Props" shape data in your example you component will accept a property theme of shape "Props".
Flow is static typing to JavaScript (https://github.com/facebook/flow || https://flow.org/)
I am trying to implement react native webview component in my application, but the web view is not loading any url its just showing the white page.
var React = require('react-native');
var{
View,
Text,
StyleSheet,
WebView
} = React;
module.exports = React.createClass({
render: function(){
return(
<View style={styles.container}>
<WebView source={{uri: 'https://m.facebook.com'}} style= {styles.webView}/>
</View>
);
}
});
var styles = StyleSheet.create({
container: {
flex:1,
backgroundColor: '#ff00ff'
},webView :{
height: 320,
width : 200
}
});
Below is the screenshot of the output .
I had this issue. WebView would render when it was the only component returned, but not when nested in another View component.
For reasons I'm not entirely sure of the issue was resolved by setting a width property on the WebView component.
class App extends React.Component {
render() {
return (
<View style={styles.container}>
<WebView
source={{uri: 'https://www.youtube.com/embed/MhkGQAoc7bc'}}
style={styles.video}
/>
<WebView
source={{uri: 'https://www.youtube.com/embed/PGUMRVowdv8'}}
style={styles.video}
/>
</View>
);
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
alignItems: 'center',
justifyContent: 'space-between',
},
video: {
marginTop: 20,
maxHeight: 200,
width: 320,
flex: 1
}
});
I'm facing same issue. What I observed is that WebView doesn't work if it's nested. If component returns just WebView, then everything is fine.
Using the answers from other users, I was able to get my react native with webview working both inside a view and outside a view. My problem came down to two things. Being on the android emulator and behind a proxy, I just had to go to my browser (chrome) in the android emulator and sign in to the corporate proxy. Secondly, some sites work and others will not work. Whether the webview was nested or not inside of a View tag, some sites like cnn.com and slack.com etc will work fine, but no matter what settings I tried for google.com it wouldn't work (even though the proxy will definitely allow google.com) Lastly, when I rebuild my application and push to the emulator the new app, sometimes it took an inordinately long time to load any site. But once the site was loaded, the links are quick and responsive. So if you don't at first see something after a build, also be patient. Hope this helps someone else.
My final app.js
import React, { Component } from 'react';
import {
Platform,
StyleSheet,
Text,
View,
Dimensions
} from 'react-native';
import { WebView } from 'react-native';
const deviceHeight = Dimensions.get('window').height;
const deviceWidth = Dimensions.get('window').width;
type Props = {};
export default class App extends Component<Props> {
render() {
return (
<View style={{flex:1}}>
<WebView
style={styles.webview}
source={{uri: 'https://www.slack.com'}}
javaScriptEnabled={true}
domStorageEnabled={true}
startInLoadingState={false}
scalesPageToFit={true} />
</View>
);
}
}
const styles = StyleSheet.create({
webview: {
flex: 1,
backgroundColor: 'yellow',
width: deviceWidth,
height: deviceHeight
}
});
WebView works well on Android. However you need to enable javascript and dom storage for some web pages.
<WebView style={styles.webView}
source={{uri: 'https://google.com/'}}
javaScriptEnabled={true}
domStorageEnabled={true}
startInLoadingState={true}
>
</WebView>
If you want the component to render the entire page, you need to wrap it with View that has flex: 1. The code below works for me:
<View style={{flex:1, alignItems: 'flex-end'}}>
<WebView
source={{uri: this.state.webContentLink}}
startInLoadingState={true}
scalesPageToFit={true} />
</View>
WebView is being moved to react-native-webview
.
None of the other answers worked except this method:
npm install --save react-native-webview
Then use it as follows:
<View style={{ flex: 1, alignItems: 'flex-end' }}>
<WebView
source={{
uri: 'https://www.yahoo.com',
}}
startInLoadingState={true}
scalesPageToFit={true}
style={{
width: 320,
height: 300,
}}
/>
</View>
<View>
<WebView
source={{uri: this.props.link}}
style={styles.webview}
javaScriptEnabled={true}
domStorageEnabled={true}
startInLoadingState={true}
/>
</View>
and style as follows:
const React = require('react-native');
const { Dimensions } = React;
const deviceHeight = Dimensions.get('window').height;
const deviceWidth = Dimensions.get('window').width;
export default {
webview: {
width: deviceWidth,
height: deviceHeight
}
};
All this to deal with bad webview dimension, so just set a specific height and specific width too (deviceHeight and deviceWidth as the example above).
As of June 2020 (noting the date because React Native answers seem to become out-of-date quickly), the simplest solution to this appears to be:
import React from 'react'
import { View, StyleSheet } from 'react-native'
import { WebView } from 'react-native-webview'
export const ComponentWithWebView = () => {
return (
<View style={styles.view}>
<WebView source = {{uri: 'https://www.google.com/'}} />
</View>
)
}
const styles = StyleSheet.create({
view: {
alignSelf: 'stretch',
flex: 1,
}
}
This results in a WebView filling the available space and being nested within a View. I believe the typical problems faced when placing a WebView within a View is that View expects children to force the View to expand (that is, a Text component would take up some amount of width and height which the View then accommodates). WebView, on the other hand, expands to the size of the parent component unless a style is passed specifying the width. Therefore, a simple <View><WebView /></View> results in a 0 width and nothing shown on the screen. The earlier solutions of setting the WebView width work well but require either the device dimensions to be fetched (which might not be the desired width) or for the View to have an onLayout function AND have some way to expand the View to the desired space. I found it easiest to just apply the flex: 1 and alignSelf: 'stretch' for the View to fill the space as desired and then WebView to automatically follow suit.
Hope this helps someone before it becomes obsolete!
I ran into the same issue recently. And I found that
alignment: 'center'
was causing the issue for me. I commented it and the webView got loaded immediately.
I found the solution here :
https://github.com/facebook/react-native/issues/5974
'brunocvcunha's' response worked for me.
Let me give the simplest example which will work seamlessly:
import React from 'react';
import { WebView } from 'react-native';
export default class App extends React.Component {
render() {
return (
<WebView
source={{uri: 'https://github.com/facebook/react-native'}}
/>
);
}
}
Do not add your WebView component within a view that created problem and webview url is not rendered rather styles of view will be shown.
I had the same issue and spent a day attempting to fix it. I copied in the UIExplorer webview example, and that didn't work.
I ultimately ended up upgrading react and creating a new react-native project and copying the files in there, and that fixed it.
I wish I had a better answer as to why that fixed it, but hopefully that helps
Below is piece of the code which worked for me.
render: function(){
return(
<View style={styles.container}>
<WebView url={'https://m.facebook.com'} style= {styles.webView}/>
</View>
);
}
I am doing React Native Webview, Could you please suggest me how to makeWebview loading the uri
render() {
return (
<Modal
animationType="slide"
ref={"webModal"}
style={{
justifyContent: 'center',
borderRadius: Platform.OS === 'ios' ? 30 : 0,
width: screen.width,
height: screen.height,borderColor:'red',
borderWidth: 5
}}
position='center'
backdrop={false}
onClosed={() => {
// alert("Modal closed");
}}>
<View style={{ flexDirection: 'row', justifyContent: 'space-between', paddingHorizontal: 20, top: 10 }} >
<Text style={{ fontSize: 24, fontWeight: '700' }}>
Interests
</Text>
<Icon name="ios-close" size={40} color='purple' onPress={() => { this.refs.webModal.close() }} />
</View>
<WebView
source={{ uri: this.state.link }}
style={{ marginTop: 20,borderColor:'green',
borderWidth: 5 }}
/>
</Modal>
);
}
}
import { WebView } from 'react-native'; is deprecated
use below line instead
npm install react-native-render-html#4.1.2 --save
then
import HTML from 'react-native-render-html';
react-native-render-html starting with version 4.2.0, react-native-webview is now a peer dependency. As a result, you need to install it yourself.
Try
<WebView
source={{ uri: "https://inhall.in/" }}
style={Styles.webView}
javaScriptEnabled={true}
scalesPageToFit />
javaScriptEnabled={true} might help