Writing and reading file in phonegap

Question

I tried writing/reading a file in phonegap+android, here is the set up:

$(document).ready(function() {
    document.addEventListene         


        

Answer 1

Here is what I came up with based on several links. I had been searching to do this as well. I used this site as a reference http://www.digitalnoiz.com/mobile-development/mobile-file-explorer-with-phonegapcordova-and-jquery-mobile-part-1/ as well as the Phonegap document api references

function displayMessage(msg)
{
    navigator.notification.alert(msg);
}

function loadDirectories(fileSystem)
{
    directoryEntry = fileSystem.root;

    var directoryReader = directoryEntry.createReader();

    directoryReader.readEntries(function(entries){
            var sOutput = "";
            for(var i=0; i < entries.length; i++)
            {
                if(!entries[i].isDirectory)
                {
                    fileSystem.root.getFile(entries[i].name,null,gotFileEntry,fail);
                }
            }                            
            //displayMessage(sOutput);
        },fail);
}
function gotFileEntry(fileEntry)
{
    fileEntry.file(function(file){
        var reader = new FileReader();
        reader.onloadend = function(evt){
        displayMessage(evt.target.result);
    };
reader.readAsText(file);                        
    },fail);
}
function failFile(evt)
{
    displayMessage(evt.target.error.code);
}
function fail(error)
{
    displayMessage("Failed to list directory contents: " + error.code);
}   
function onBodyLoad()
{       
document.addEventListener("deviceready", onDeviceReady, false);
}       
function onDeviceReady()
{
    window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, loadDirectories, fail);
}