Retrieve the base64 encoded information from a FileEntry in PhoneGap

Question

Retrieve the base64 encoded information from a FileEntry in PhoneGap

Currently, I'm facing an issue with Phonegap 2.0 where I am trying to obtain a media encoded as base64 from its URI but have been unsuccessful.

function tryToSend(fileReader) {
    // Unsure about what the parameter is
}

function win(file) {
    alert(file.name + ' ' + file.type); // type shows as undefined at this point
    var reader = new FileReader();
    reader.onloadend = tryToSend;
    var encoded = reader.readAsDataURL(file); // Here, 'encoded' remains undefined
}

function fail(error) {
    console.log(error);
}

function onResolveSuccessCompleted(fileEntry) {
    fileEntry.file(win, fail);
}

function onResolveFailed(error) {
    console.log(error);
}

window.resolveLocalFileSystemURI(MY_FILE_URI, onResolveSuccessCompleted, onResolveFailed);

Despite my efforts, I have not been able to retrieve the base64 encoded data for my file which is essential for sending it in a JSON AJAX call.

I wonder if there might be something wrong with my code or if you have any suggestions on how I can achieve my goal?

Thanks.

Cyril

javascript android ios cordova cordova-2.0.0

Answer 1

Answer №1

When using reader.readAsDataURL, there is no need to capture the return value since it is an asynchronous call and does not provide any return value. Your tryToSend function should be structured like this:

function tryToSend(evt) {
    var encoding = evt.target.result;
    // The variable 'encoding' now holds your file in base64 encoded string.
}

Answer 2

When using reader.readAsDataURL, there is no need to capture the return value since it is an asynchronous call and does not provide any return value. Your tryToSend function should be structured like this:

function tryToSend(evt) {
    var encoding = evt.target.result;
    // The variable 'encoding' now holds your file in base64 encoded string.
}

Retrieve the base64 encoded information from a FileEntry in PhoneGap

Answer №1

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