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  • How to save image from url into device photo gallery

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    If you want to save image from url, you have to merge the following code to you js file

    First of all, we have to add the following plug-in to read, write and navigate file system.
    Write this in your code:

    cordova plugin add org.apache.cordova.file
    cordova plugin ls
    

    Secondly, we have to check the parameters mismatch:

    function DownloadFile(URL, Folder_Name, File_Name) {
    if (URL == null && Folder_Name == null && File_Name == null) {
        return;
    } else {
            download(URL, Folder_Name, File_Name);
        }
      }
    

    Thirdly, we have to "Write permission" and "Folder Creation":

    function download(URL, Folder_Name, File_Name) {
    // Request the file system 
        window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, fileSystemSuccess, fileSystemFail);
    
    function fileSystemSuccess(fileSystem) {
        var download_link = encodeURI(URL);
        ext = download_link.substr(download_link.lastIndexOf('.') + 1); //Get extension of URL
    
        var directoryEntry = fileSystem.root; // For root path of directory
        directoryEntry.getDirectory(Folder_Name, { create: true, exclusive: false }, onDirectorySuccess, onDirectoryFail); // creating folder in sdcard
        var rootdir = fileSystem.root;
        var fp = rootdir.fullPath; // Gives Fullpath of local directory
    
        fp = fp + "/" + Folder_Name + "/" + File_Name + "." + ext; // fullpath and name of the file which we want to give
        // Function call to download
        filetransfer(download_link, fp);
    }
    
    function onDirectorySuccess(parent) {
        // Directory successfuly created 
    }
    
    function onDirectoryFail(error) {
        // On error
        alert("Unable to create new directory: " + error.code);
    }
    
      function fileSystemFail(evt) {
        //Unable to access file system
        alert(evt.target.error.code);
     }
    }
    

    Fourthly, We have to download a file into created folder:

    function filetransfer(download_link, fp) {
    var fileTransfer = new FileTransfer();
    // Local path and File download function with URL
    fileTransfer.download(download_link, fp,
                        function (entry) {
                            alert("download complete: " + entry.fullPath);
                        },
                     function (error) {
                         // Failed errors
                         alert("download error source " + error.source);
                     }
                );
    }
    

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