Just like HTML, we have the opportunity to show a text i.e.
<img src="hello.png" alt="hello" />
There is plenty of suggestions for replacing an image with another image (fallback src), but I need to show a text instead of any other images!
React Native Image onError method will execute on Image when image not found on server or unexpectedly something wrong goes with the connection. Using that you can display text as below,
import React, { Component } from "react";
import { Text, View, Image, StyleSheet } from "react-native";
export default class Example extends Component {
state = {
isLoadingImage: true,
isImageFailed: false
};
onErrorLoadingImage = () => {
this.setState({
isLoadingImage: false,
isImageFailed: true
});
};
render() {
return (
<View style={styles.container}>
{!this.state.isImageFailed ? (
<Image
source={{
uri:
"https://reactnativecode.com/wp-content/uploads/2017/10/Guitar.jpg"
}}
style={styles.imageStyle}
onError={this.onErrorLoadingImage}
/>
) : (
<View style={styles.container}>
<Text>Error loading image</Text>
</View>
)}
</View>
);
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
padding: 10,
justifyContent: "center",
alignItems: "center"
},
imageStyle: {
resizeMode: "center",
width: "50%",
height: "50%"
}
});
Unfortunately, there is no other way to display text just like HTML alt=" Error loading image "
Hope this will help you.
Related
Please help me out with this problem.
I can able to pick the image from my Local storage. In the Console also it is showing, But I cannot able to display it on the screen.
Here is my code.
import * as ImagePicker from "expo-image-picker";
import React, { useState } from "react";
import {
ActivityIndicator,
Button,
FlatList,
Image,
StyleSheet,
Text,
useWindowDimensions,
View
} from "react-native";
import { SafeAreaProvider, SafeAreaView } from "react-native-safe-area-context";
export default function App() {
const [images, setImages] = useState([]);
const [isLoading, setIsLoading] = useState(false);
const pickImages = async () => {
// No permissions request is necessary for launching the image library
setIsLoading(true);
let result = await ImagePicker.launchImageLibraryAsync({
mediaTypes: ImagePicker.MediaTypeOptions.Images,
// allowsEditing: true,
allowsMultipleSelection: true,
selectionLimit: 10,
aspect: [4, 3],
quality: 1,
});
setIsLoading(false);
console.log(result);
if (!result.canceled) {
setImages(result.uri ? [result.uri] : result.selected);
}
};
return (
<>
<FlatList
data={images}
renderItem={({ item }) => (
<Image
source={{ uri: item.uri }}
style={{ width: 100, height: 100 }}
/>
)}
keyExtractor={(item) => item.uri}
contentContainerStyle={{ marginVertical: 50, paddingBottom: 50 }}
ListHeaderComponent={
isLoading ? (
<View>
<Text
style={{ fontSize: 20, fontWeight: "bold", textAlign: "center" }}
>
Loading...
</Text>
<ActivityIndicator size={"large"} />
</View>
) : (
<Button title="Pick images" onPress={pickImages} />
)
}
/>
</>
);
}
I can able to pick the image from my Local storage. In Console also it is showing, But i cannot able to display it in screen.
Kindly help me out.
It looks like you're already passing the uri into the array. by doing [result.uri] and then in the image you're doing it again item.uri. trying just doing the item.
i have list in which i want to show image like this
this is my list component I have giving correct path but nothin happens have giving width and height but no luck
import React from "react";
import {
View,
Text,
StyleSheet,
Button,
Image,
ImageBackground,
} from "react-native";
import colors from "../config/colors";
import AppText from "./AppText";
export default function ListItem({ image, title, sutitle }) {
return (
<View style={styles.container}>
<Image style={styles.image} source={image} />
<View style={styles.tittleContainer}>
<AppText style={styles.title}>{title}</AppText>
<AppText style={styles.subtitle}>{sutitle}</AppText>
</View>
</View>
);
}
const styles = StyleSheet.create({
image: {
width: 70,
height: 70,
borderRadius: 35,
marginRight: 10,
},
container: {
flexDirection: "row",
},
sutitle: {
fontWeight: "bold",
color: colors.red,
},
tittleContainer: {
padding: 20,
},
title: {
fontWeight: "bold",
marginBottom: 7,
},
});
I am unable to render image on my screen
the issue is while providing props to ListItem component you're passing "Image". and while using it in the component you're using "image".
I hope this solves your issue.
Image is working copy past your code nothing else,
check your image path correctly
https://snack.expo.io/#jsfit/image
export default function ListItem({ image, title, sutitle }) { in this params you are getting the image as lower i and when you are passing with Image as capital I.
I am (newbie) working on an iOS app using react-native. I want to show an image illustration when app goes offline or there is no internet connection to inform the user. I have done all set up required such as :-
1. My image is at src/assets folder
2. using this image in screen - which will be displayed when app detects no internet connection.
In iOS simulator it works fine, but when I run it on iPhone it does not show that image only text appears.
NoInternetScreen.js
import React from 'react';
import {View, StyleSheet, Image, Text} from 'react-native';
const NoInternetScreen = props => {
return(
<View style={styles.imageContainer}>
<Image style={styles.image} source={require('../assets/NoConnection.png')}/>
<View style={styles.textContainer}>
<Text style={styles.text}>No Internet connection</Text>
</View>
</View>
)
}
const styles = StyleSheet.create({
imageContainer: {
flex:1,
justifyContent: 'center',
alignItems: 'center',
marginHorizontal: 20,
},
image: {
width: 160,
height: 220,
alignSelf: 'center',
},
textContainer: {
marginVertical: 15,
},
text: {
fontSize: 20,
}
});
export default NoInternetScreen;
Login.js - which uses NoInternetScreen
import React, {useContext} from 'react';
import {
View,
Text,
StyleSheet
} from 'react-native';
import {NetworkContext} from '../NetworkContext';
import NoInternetScreen from './NoInternetScreen';
const Login = props => {
const isConnected = useContext(NetworkContext);
return (
isConnected ? <View style={styles.container}>
<Text> Login </Text>
</View> : <NoInternetScreen/>
);
};
const styles = StyleSheet.create({
container: {
flex: 1,
}
});
export default Login;
Could you please suggest what could be done to fix it?
Thanks and Regards,
Ankur
I just want to fit an image of any size to the phone screen, so it just stays there as a background. I have the same issue with a logo I'm trying to put in the footer, I can't get it to fit in the it's view container.
I've tried many solutions I found in similar questions, using resizeMode and many width/height values, but nothing seems to work. My image is always displayed the same way.
Code for the image component:
import React from 'react';
import { View, Image } from 'react-native';
const Workspace = (props) => {
return (
<View
style = {styles.workspaceStyle}>
<Image
source={props.img}
resizeMode = 'contain'/>
{props.children}
</View>
);
};
const styles = {
workspaceStyle: {
flex: 1
}
}
export default Workspace;
My app.js render and style code:
render() {
return (
<View style = {{flex: 1}}>
<Workspace
img={require('./images/quarto.png')}/>
<ScrollView>
<Header>
<HeaderItem img={require('./images/camera.png')}/>
<HeaderItem img={require('./images/camera.png')}/>
<HeaderItem img={require('./images/camera.png')}/>
<HeaderItem img={require('./images/camera.png')}/>
</Header>
</ScrollView>
<ScrollView style = {{flexDirection: 'row'}}>
{this.sideMenuShow()}
</ScrollView>
<Footer>
<View style = {styles.logoContainerStyle}>
<Image
style = {styles.logoStyle}
source = {require('./images/magicalStage.png')}
resizeMethod = "scale"
/>
</View>
<Text style = {{color: 'white', marginTop: 5, marginBottom: 2}}>teste, teste, teste, teste</Text>
</Footer>
</View>
);
}
}
const styles = {
logoContainerStyle: {
marginRight: 5,
marginLeft: 5,
marginTop: 2,
marginBottom: 3,
width: "20%"
},
logoStyle: {
paddingLeft: 2,
paddingRight: 2
}
}
Thanks in advance!
EDIT:
In app.js, your outer view need to use width and height of the screen:
width: Dimensions.get('window').width,
height: Dimensions.get('window').height
Next, in Workspace: use stretch instead of contain ( same for your footer, add resizeMode )
resizeMode: 'stretch',
I do mine like this:
BackgroundImageStyle.js
import { StyleSheet } from 'react-native'
export default StyleSheet.create({
container: {
flex: 1,
position: 'absolute',
top: 0,
left: 0,
bottom: 0,
right: 0
},
image: {
flex: 1,
resizeMode: 'cover',
}
})
BacgroundImage.js
import React, { Component } from 'react'
import { View, Image } from 'react-native'
import styles from './BackgroundImageStyle'
export default class BackgroundImage extends Component {
render() {
return (
<View style={styles.container} >
<Image
style={styles.image}
source={this.props.source}
/>
</View>
)
}
}
then you can use it like
<BackgroundImage source={your_image}/>
I hope everything is clear, the trick is to set position absolute and then top, left, bottom, and right to 0
You can use the ImageBackground component from react-native
https://facebook.github.io/react-native/docs/imagebackground
return (
<ImageBackground source={...} style={{width: '100%', height: '100%'}}>
<Text>Inside</Text>
</ImageBackground>
);
I am building my first app with React Native, an app with a long list of images. I want to show a spinner instead of image while image is loading. It is sounds trivial but i didn't found a solution.
I think for a spinner i suppose to use ActivityIndicatorIOS , but how am i combining it with an Image component?
<Image source={...}>
<ActivityIndicatorIOS />
</Image>
Is this a right direction? Am i missing something?
I will share my solution
<View>
<Image source={{uri: this.state.avatar}} style={styles.maybeRenderImage}
resizeMode={"contain"} onLoadStart={() => this.setState({loading: true})}
onLoadEnd={() => {
this.setState({loading: false})
}}/>
{this.state.loading && <LoadingView/>}
</View>
LoadingView.js
export default class LoadingView extends Component {
render() {
return (
<View style={styles.container}>
<ActivityIndicator size="small" color="#FFD700"/>
</View>
);
}
}
const styles = StyleSheet.create({
container: {
position: "absolute",
left: 0,
right: 0,
top: 0,
bottom: 0,
opacity: 0.7,
backgroundColor: "black",
justifyContent: "center",
alignItems: "center",
}
});
Here is a complete solution to providing a custom image component with a loading activity indicator centered underneath the image:
import React, { Component } from 'react';
import { StyleSheet, View, Image, ActivityIndicator } from 'react-native';
export default class LoadableImage extends Component {
state = {
loading: true
}
render() {
const { url } = this.props
return (
<View style={styles.container}>
<Image
onLoadEnd={this._onLoadEnd}
source={{ uri: url }}
/>
<ActivityIndicator
style={styles.activityIndicator}
animating={this.state.loading}
/>
</View>
)
}
_onLoadEnd = () => {
this.setState({
loading: false
})
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
},
activityIndicator: {
position: 'absolute',
left: 0,
right: 0,
top: 0,
bottom: 0,
}
})
I will share my own solution based only on CSS manipulation, which in my opinion is easy to understand, and the code is pretty clean. The solution is a little similar to other answers, but doesn't require absolute position of any component, or creating any additional components.
The idea is to switch between showing an <Image> and <ActivityIndicator>, based on some state variable (isImageLoaded in the snippet below).
<View>
<Image source={...}
onLoad={ () => this.setState({ isImageLoaded: true }) }
style={[styles.image, { display: (this.state.isImageLoaded ? 'flex' : 'none') }]}
/>
<ActivityIndicator
style={{ display: (this.state.isImageLoaded ? 'none' : 'flex') }}
/>
</View>
Also you should set image size using flex property (otherwise image will be invisible):
const styles = StyleSheet.create({
image: {
flex: 1,
}
});
Note that you don't have to initiate the isImageLoaded variable to false in the constructor, because it will have undefined value and the if conditions will act as expected.
Just ran into the same issue. So basically you have the correct approach, but the indicator should of course only be rendered when the image is loading. To keep track of that you need state. To keep it simple we assume you have just on image in the component an keep the state for it in the same component. (The cool kids will argue you should use a higher order component for that and then pass the state in via a prop ;)
The idea then is, that your image starts out loading and onLoadEnd (or onLoad, but then the spinner gets stuck on error, which is fine or course) you re-set the state.
getInitialState: function(){ return { loading: true }}
render: function(){
<Image source={...} onLoadEnd={ ()=>{ this.setState({ loading: false }) }>
<ActivityIndicatorIOS animating={ this.state.loading }/>
</Image>
}
You could also start out with { loading: false } and set it true onLoadStart, but I'm not sure what the benefit would be of that.
Also for styling reasons, depending on your layout, you might need to put the indicator in a container view that is absolutely positioned. But you get the idea.
Yes, deafultSource and loadingIndicatorSource is not working properly. Also image component cannot contain children. Try this solutions => https://stackoverflow.com/a/62510268/11302100
You can simply just add a placeholder
import { Image } from 'react-native-elements';
<Image
style={styles(colors).thumbnail}
source={{ uri: event.image }}
PlaceholderContent={<ActivityIndicator color={colors.indicator} />}
/>
const [imageLoading, setIsImageLoading] = useState(true);
<View>
<View
style={[
{justifyContent: 'center', alignItems: 'center'},
imageLoading ? {display: 'flex'} : {display: 'none'},
]}>
<ActivityIndicator />
</View>
<Image
source={{uri: ""}}
onLoadEnd={() => {setIsImageLoading(false)}}
style={[
imageStyle,
imageLoading ? {display: 'none'} : {display: 'flex'},
]}
/>
</View>