Copying a file using Cordova

Question

I\'ve been trying to copy file named versions.txt from applicationDirectory to externalApplicationStorageDirectory using cordova but code fails.

here is the code

Answer 1

I finally got a functioning broader no specific/case function to copy a file having a baseFileURI to a temporary (fileSystem == LocalFileSystem.TEMPORARY) or persistent (fileSystem == LocalFileSystem.PERSISTENT) APP directory, the destiny file having the name destPathName.

It uses the cordova-plugin-file plugin.

function copyFile(baseFileURI, destPathName, fileSystem){
    window.resolveLocalFileSystemURL(baseFileURI, 
        function(file){        
            window.requestFileSystem(fileSystem, 0, 
                function (fileSystem) {
                    var documentsPath = fileSystem.root;
                    console.log(documentsPath);
                    file.copyTo(documentsPath, destPathName,
                    function(res){                        
                        console.log('copying was successful to: ' + res.nativeURL)
                    }, 
                    function(){
                        console.log('unsuccessful copying')
                    });
                });
        }, 
        function(){
            console.log('failure! file was not found')
        });
}

Use this function, for example, like this

copyFile("file:///storage/emulated/0/Android/data/com.form.parking.violation/cache/IMG-20180505-WA0004.jpg",         
        "myImg.jpg",
        LocalFileSystem.TEMPORARY);