Cordova：无法使用Cordova在Android上复制文件

Question

Somehow I keep getting an "error code 5" when trying to set the following right. What I want to do, is copy an existing file from the assets in android to an accessible spot on the android device to be able to share it across other apps (like mail).

Here is my code example:

    window.requestFileSystem  = window.requestFileSystem || window.webkitRequestFileSystem;
    var storagefolder = cordova.file.dataDirectory;
    var storagefolderpointer;
    console.log("storage folder: " + storagefolder);

    // Check for support.
    if (window.requestFileSystem) {
        console.log("filesystem beschikbaar");
        var getFSfail = function () {
            console.log('Could not open filesystem');
        };
        var getFSsuccess = function(fs) {

            var getDIRsuccess = function (dir) {
                    console.debug('Got dirhandle');
                    cachedir = dir;
                    fileurl  = fs.root.fullPath + '/' + storagefolder;
                    storagefolderpointer = dir;
            };
            var getDIRfail = function () {
                console.log('Could not open directory');
            };

            console.debug('Got fshandle');
            FS = fs;
            FS.root.getDirectory(storagefolder, {create:true,exclusive:false}, getDIRsuccess, getDIRfail);
        };
        window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, getFSsuccess, getFSfail);

        setTimeout(function() {

            console.log("directory beschikbaar");
            var suc = function(entry){
                var goe = function(){
                    console.log("copy success");
                };
                var fou = function(){
                    console.log("copy NOT NOT success");
                };
                entry.copyTo(storagefolder, "vcard.vcf", goe, fou);
            };
            var fai = function(e){
                console.log("fail getFile: " + e.code);
            };
            window.resolveLocalFileSystemURL(storagefolderpointer + "www/visitekaart/vcard.vcf", suc, fai);

        }, 1000);

    } else {
        console.log("filesystem NOT NOT NOT available");
    }

Answer 1

have you use cordovaFile plugin instead?,you can use blob to read the content of your files than write a new one on android sdcard using cordovaFile plugin

$cordovaFile.writeFile('appdata/file.txt', blob, 0).then(function(fileEntry) {
    //success
}, function(err) {
    //err
}