file plugin needed.
Install it with this:
phonegap plugin add org.apache.cordova.file
Here is my example.html(within javascript code).
This example provides to read file in locale storage, displaying its contents into a javascript alert:
<!DOCTYPE html>
<html>
<head>
<title>PhoneGap Read File Example Page</title>
<script type="text/javascript" charset="utf-8" src="cordova.js"></script>
<script type="text/javascript" charset="utf-8">
// Wait for Cordova to load
//
document.addEventListener("deviceready", onDeviceReady, false);
// Cordova is ready
//
function onDeviceReady() {
window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, gotFS, fail);
}
function gotFS(fileSystem) {
fileSystem.root.getFile("writing_test_with_phonegap.txt", null, gotFileEntry, fail);
}
function gotFileEntry(fileEntry) {
fileEntry.file(gotFile, fail);
}
function gotFile(file){
alert("gotFile invoked with file: " + file.name);
readDataUrl(file);
readAsText(file);
}
function readDataUrl(file) {
var reader = new FileReader();
reader.onloadend = function(evt) {
console.log("Read as data URL");
console.log(evt.target.result);
};
reader.readAsDataURL(file);
}
function readAsText(file) {
var reader = new FileReader();
reader.onloadend = function(evt) {
console.log("Read as text");
console.log(evt.target.result);
alert(evt.target.result);
};
reader.readAsText(file);
}
function fail(evt) {
console.log(evt.target.error.code);
}
</script>
</head>
<body>
<h1>Example</h1>
<p>Read File</p>
</body>
</html>
Bye...
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