import { Dimensions } from "react-native";
const win = Dimensions.get('window');
<Image
style={{
width: win.width/2,
height: win.width/2,
resizeMode: "contain",
alignSelf: "center",
borderWidth: 1,
borderRadius: 20,
}}
source={{uri:'https://facebook.github.io/react/img/logo_og.png'}}
resizeMode="stretch"
/>import {
Image,
Dimensions,
} from "react-native";
const screen = Dimensions.get("window");
Image.getSize(this.state.image_url, (width, height) => {
//full image to screen width (Change screen.width to pixel you want)
let imageWidthRatio = width / screen.width;
let imageHeight = height / imageWidthRatio;
this.setState({ width: screen.width, height: imageHeight });
});
<Image
style={{
width: this.state.width,
height: this.state.height,
alignSelf: "center",
}}
source={{ uri: this.state.image_url }}
/>
First import Dimensions from react-native
import { Dimensions } from 'react-native';
then you have to get the dimensions of the window
const win = Dimensions.get('window');
Now calculate ratio as
const ratio = win.width/541; //541 is actual image width
now the add style to your image as
imageStyle: {
width: win.width,
height: 362 * ratio, //362 is actual height of image
}