How to check a file's existence in phone directory with phonegap

Question

I\'m writing an Android application with Phonegap 1.4.1 and Sencha that downloads and reads pdf files. How can I check whether the file exists in the phone directory using e

Answer 1

note:

when I get the filesystem I save it in a var under a macro pg object:

pg = {fs:{}}    // I have a "GOTFS" function... a "fail" function
pg.fs.filesystem = window.requestFileSystem(window.PERSISTENT, 0, pg.fs.GOTFS, pg.fs.fail);

so my code is pretty simple...

var fileExists = function(path, existsCallback, dontExistsCallback){
    pg.fs.fileSystem.root.getFile(path, { create: false }, existsCallback, dontExistsCallback);
        // "existsCallback" will get fileEntry as first param
    }