'Unable to download image to local directory from url in expo react native
I am unable to download image in expo application(React Native for Android) after building my app file, but I am able to download image while debugging the application using expo client
import * as Sharing from 'expo-sharing';
import * as FileSystem from 'expo-file-system';
import * as MediaLibrary from 'expo-media-library';
import * as Permissions from "expo-permissions";
const downloadFtn = async () => {
console.log("downloadFtn");
const fileUri: string = `${FileSystem.documentDirectory}test.png`;
const downloadedFile: FileSystem.FileSystemDownloadResult = await FileSystem.downloadAsync("https://i.ibb.co/K5Tyv2C/img-5-1.png", fileUri);
console.log(FileSystem.documentDirectory);
console.log(downloadedFile.status);
if (downloadedFile.status != 200) {
console.log(downloadedFile);
} else {
const perm = await Permissions.askAsync(Permissions.MEDIA_LIBRARY);
if (perm.status != 'granted') {
return;
}
try {
const asset = await MediaLibrary.createAssetAsync(downloadedFile.uri);
const album = await MediaLibrary.getAlbumAsync('Download');
if (album == null) {
await MediaLibrary.createAlbumAsync('Download', asset, false);
} else {
await MediaLibrary.addAssetsToAlbumAsync([asset], album, false);
}
} catch (e) {
handleError(e);
}
}
}
Solution 1:[1]
This is my code, it work well
import {shareAsync} from "expo-sharing";
import * as MediaLibrary from 'expo-media-library';
import * as FileSystem from 'expo-file-system';
function getAllUrlParams(url) {
// get query string from url (optional) or window
var queryString = url ? url.split('?')[1] : window.location.search.slice(1);
// we'll store the parameters here
var obj = {};
// if query string exists
if (queryString) {
// stuff after # is not part of query string, so get rid of it
queryString = queryString.split('#')[0];
// split our query string into its component parts
var arr = queryString.split('&');
for (var i = 0; i < arr.length; i++) {
// separate the keys and the values
var a = arr[i].split('=');
// set parameter name and value (use 'true' if empty)
var paramName = a[0];
var paramValue = typeof (a[1]) === 'undefined' ? true : a[1];
// (optional) keep case consistent
paramName = paramName.toLowerCase();
if (typeof paramValue === 'string') paramValue = paramValue.toLowerCase();
// if the paramName ends with square brackets, e.g. colors[] or colors[2]
if (paramName.match(/\[(\d+)?\]$/)) {
// create key if it doesn't exist
var key = paramName.replace(/\[(\d+)?\]/, '');
if (!obj[key]) obj[key] = [];
// if it's an indexed array e.g. colors[2]
if (paramName.match(/\[\d+\]$/)) {
// get the index value and add the entry at the appropriate position
var index = /\[(\d+)\]/.exec(paramName)[1];
obj[key][index] = paramValue;
} else {
// otherwise add the value to the end of the array
obj[key].push(paramValue);
}
} else {
// we're dealing with a string
if (!obj[paramName]) {
// if it doesn't exist, create property
obj[paramName] = paramValue;
} else if (obj[paramName] && typeof obj[paramName] === 'string'){
// if property does exist and it's a string, convert it to an array
obj[paramName] = [obj[paramName]];
obj[paramName].push(paramValue);
} else {
// otherwise add the property
obj[paramName].push(paramValue);
}
}
}
}
return obj;
}
export class fileAPI {
downloadFile = async (url) => {
let params = getAllUrlParams(url);
console.log("params", params);
let file_name = params.name;
console.log("file_name", file_name)
if (file_name !== null) {
FileSystem.downloadAsync(
url,
FileSystem.documentDirectory + file_name
)
.then(async ({uri}) => {
console.log('Finished downloading to ', uri);
MediaLibrary.createAssetAsync(uri).then(asset => {
console.log('asset', asset);
this.share(asset)
MediaLibrary.createAlbumAsync('albumnameyouneedtosave', asset)
.then(() => {
console.log("download complete");
})
.catch(error => {
console.log("issue with download contact support");
});
});
})
.catch(error => {
console.error(error);
});
}
};
share = async (asset) => {
console.log(asset.filename.split("."))
console.log(asset.filename.split(".").length)
await shareAsync(asset.uri, {
UTI: "." + asset.filename.split(".")[asset.filename.split(".").length - 1],
mimeType: "application/" + asset.filename.split(".")[asset.filename.split(".").length - 1]
});
}
}
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
Solution | Source |
---|---|
Solution 1 | Linh Nguy?n Ng?c |