从 react-native-image-picker 选择图像后图像质量没有降低

Question

我正在使用react-native-image-picker 从图库中选择图像，但react-native-image-picker 在选择图像后不会降低图像质量。原始图像和压缩图像的大小相同。如何使用react-native-image-picker降低画质？

import { launchImageLibrary } from 'react-native-image-picker';

const chooseFile = () => {
        let options = {
            mediaType: 'photo',
            quality: 0.5,
        };
        launchImageLibrary(options, (response) => {
            console.log('Response = ', response);
        });
    };

Answer 1

import { launchImageLibrary } from 'react-native-image-picker';
const chooseFile = () => {
    let options = {
        mediaType: 'photo',
        maxHeight: 1000, //any number lesser will resize the image to a lower quality
    };
    launchImageLibrary(options, (response) => {
        console.log('Response = ', response);
    });
};

使用 maxHeight 或 maxWidth 将图像调整为较低质量的图像