I have an image that should always take 100% of the parent size. The width should adjust accordingly to maintain the aspect ratio of the image. The width can be smaller or larger than the parent. The height must be equal to the parent size.
<View style={{height: 220}}>
<Image source={{uri: 'myuri.jpg'}} style={{height: '100%, ...?}} />
</View>
I only find solutions where the width is fixed and the height adjusts dynamically. I want it the other way round.
import { Dimensions } from 'react-native';
You can get the application window's width and height using the following code:
<View style={{height: Dimensions.get("window").height}}>
<Image source={{uri: 'myuri.jpg'}}
style={{
height: Dimensions.get("window").height*0.5,
width: Dimensions.get("window").width
}}
/>
</View>
Using this way you can proportion the size you want.
You can also review the document here.
Dimensions
Try this
<View style={{height: 220}}>
<Image source={{uri: 'myuri.jpg'}} style={{height: '100%, width: 'auto'}} />
</View>
Also resizeMode: 'contain' can helps you a lot.
Reference that might helps you: https://reactnative.dev/docs/image#resizemode
Related
I have a checkbox with text next to it, requiring an Image (which is an icon) attached to the last word for more information. I haven't found a reliable way to do this. The only way is either breaking up the text into different chunks and wrapping the parent or absolute positioning of the icon - both of which end up positioned differently on different devices depending on size.
When I add the image inside of the text, I get a weird background image of a file icon.
When I keep it outside, It just defaults to the end of the text block:
My code snippet:
<View style={{ flexDirection: 'row' }}>
<Checkbox style={styles.checkbox} checked={agreedChecked} />
<View style={{ flexDirection: 'row', flex: 1 }}>
<Text style={[ styles.label]}>Yes, I agree to using this payment method for automatic monthly charges.</Text>
<Image source={require('../../assets/Icon_Info.png')} />
</View>
</View>
Blown up to show weird file background:
(note it does not have the background when outside the text element)
Can you simply copy & paste this code segment and try it? It works for me. If you want, I can create a repo for you.
Github Example Repo
https://github.com/WrathChaos/react-native-text-ends-with-icon-example
import React from "react";
import {
SafeAreaView,
Image,
View,
Text,
StatusBar,
TouchableOpacity
} from "react-native";
const App = () => {
return (
<>
<StatusBar barStyle="dark-content" />
<SafeAreaView>
<View style={{ flexDirection: "row" }}>
{/* <Checkbox style={styles.checkbox} checked={agreedChecked} /> */}
<View style={{ flexDirection: "row", flex: 1 }}>
<Text style={{ color: "#757575" }}>
Yes, I agree to using this payment method for automatic monthly
charges.{" "}
<TouchableOpacity onPress={() => {}}>
<Image
style={{ height: 15, width: 15 }}
source={require("./assets/icon.png")}
/>
</TouchableOpacity>
</Text>
</View>
</View>
</SafeAreaView>
</>
);
};
export default App;
If anyone stumbles upon this, it was a known bug and is fixed in React Native 0.61.4!
https://github.com/facebook/react-native/pull/26653
I'm working on a mobile app with React-Native and I need to implement a new component.
The exemple :
So, my question is, how can i add this shadow / blur image on my component ?
I know how to make a blur on an image but how can i do this effect?
Thanks
so,basically you work with two images, opacity, blurRadius and position absolute.
try :
<View style={{elevation:12, position:'absolute', left:100, top:100, elevation:12, borderRadius:50, borderWidth: 1, borderColor:'rgba(255, 255, 2555, 0.4)', overflow: 'hidden', opacity:0.3}}>
<Image blurRadius={10} style={{width:300, height:150}} source={{uri:'https://image.shutterstock.com/image-photo/beautiful-garden-flowers-450w-257560639.jpg'}} />
</View>
<View style={{position:'absolute', left:95, top:90, borderRadius:50, borderWidth: 0, borderColor:'rgba(255, 255, 2555, 0.4)', overflow: 'hidden'}}>
<Image style={{width:300, height:150, }} source={{uri:'https://image.shutterstock.com/image-photo/beautiful-garden-flowers-450w-257560639.jpg'}} />
</View>
I have an image which I want to display in top half of my screen. I'm using flux like this.
<View style={{flex:0.5}}>
<Image
style={{width:null, height:null, flex:1, resizeMode:'stretch'}}
source={require('../../../Images/salad-congo.png')}>
</Image>
</View>
<View style={{flex:0.5, backgroundColor:'yellow'}}>
<Text>Hello</Text>
</View>
Problem:
The problem is my image does not fit for all screen sizes. If I'm opening my app in landscape mode the image is centered instead of covering whole width and height of upper half. In case I use 'resizeMode='stretch'' my whole image is destroyed in pixels, and becomes un viewable. How can I make my image appear big for large screens, and small for small screens obviously covering the whole screen. Is there something I need to do with my image's resolutions? Or provide multiple images? If yes then how to handle them for both android and IOS
Import Dimensions From react native and then use it to set the size of your image
import {Dimensions} from 'react-native'
const SCREEN_WIDTH = Dimensions.get("window").width;
const logo = require("logo.png");
in the return of render:
<Image source={logo} style={styles.logo} />
const styles = StyleSheet.create({
logo: {
height: SCREEN_WIDTH * 0.65,
width: SCREEN_WIDTH * 0.65,
marginLeft: SCREEN_WIDTH * 0.2
}})
So I solved the issue by creating a single large image of 2056x2056, and then by using Flex properly to obtain the desired result. Tested the result on a couple of phones and tablets. Working Fine.
<View style={{flex:1}}>
<View style={{flex:0.6, alignItems:'stretch'}}>
<Image style={{flex:1, width: null, height: null }}
source={require('../../../Images/salad-congo2056x2056.png')}/>
</View>
<View style={{flex:0.1, backgroundColor:'#ffffff'}}>
// Intentional gap
</View>
<View style={{flex:0.3, backgroundColor:'red'}}>
// Anything here
</View>
</View>
Somehow I could not figure this out. I have tried several solutions available online, but none of them worked.
Here is the issue. I have some wide images that I wanted to stack on top of each other. The height does not matter, but I want it to have a fixed width. For some reason, the images are being cropped.
I want it to look like this. For example, if you change .meat's height to 10px, it will resize but will maintain its ratio.
http://jsfiddle.net/iggyfiddle/mtL7e2jz/
This is the image code:
{items.map((item, index) =>
<View key={index}>
<View style={styles.imageWrapper}>
{ item.image_url_large && <Image style={styles.image} resizeMode='cover' source={{ uri: item.image_url_large }} /> }
</View>
</View>
)}
It is mapping over an array of several images.
I have tried:
a simple
const styles = {
image: {
height: 100
},
};
I tried following the same pattern on the fiddle, by giving it fixed height and width according to this SO post
const styles = {
imageWrapper: {
height: 50,
width: 400
},
image: {
height: '100%'
},
};
But it still crops the top bun and tomato
I have tried some solutions described on this GH discussion but they don't seem to work.
How can I automatically resize the image from web to fixed width without it being cropped?
use resizeMode='contain' instead of cover and specify the width and height.
<Image
style={{width:300,height:300}}
source={{ uri: display_image_small }}
resizeMode='contain'>
</Image>
I want an image to appear across the width of the screen, and be scaled so it retains its proportions.
I currently have this
<ScrollView style={styles.background}>
<Text>Some Header Text</Text>
<Image
style={{width: null}}
resizeMode="contain"
source={require("./assets/images/map.png")}
/>
</ScrollView>
which half works. The image is scaled correctly in width. but it is retaining its height, so there is a large border above and below the image.(ie the layout is still using the images height unscaled)
If I add a height: null or replace the width with a height then no image is displayed.
How do I do this (I expect) trivial thing?
(same behavior on ios and android.)
So I have had to calculate things myself.
This scales the image as I want, and the image is re-scaled when the phone is rotated.
I am not sure if componentWillMount is the right event to choose to calculate the width/height ratio. I would be happy for any other code review comments!
import React, {Component} from "react";
import {
StyleSheet,
Text,
View,
ScrollView,
Image,
Button,
Dimensions
} from "react-native";
import resolveAssetSource from "resolveAssetSource";
import {Actions} from "react-native-router-flux";
export default class Main extends Component {
measureView(event) {
this.setState({
width: event.nativeEvent.layout.width,
height: event.nativeEvent.layout.width
});
}
componentWillMount() {
let source = resolveAssetSource(require("./assets/images/map.png"));
this.setState({ratio: source.height / source.width});
}
render() {
return (
<ScrollView
onLayout={event => this.measureView(event)}
>
<Text style={styles.header}>
Some Header Text
</Text>
<Image
style={{
width: this.state.width,
height: this.state.width * this.state.ratio
}}
resizeMode="contain"
source={require("./assets/images/map.png")}
/>
</ScrollView>
);
}
}