PhoneGap unable to getDuration() out of Media API, but other methods work

Question

I\'m building out an audio media recorder/player with PhoneGap. It\'s all working beautifully, but I\'ve hit a wrinkle I can\'t seem to iron.

my_media.play();

Answer 1

The metadata for the media in question has not been loaded when you call my_media.getDuration(). In the documentation you referenced in your question the example code puts the getDuration call into an interval:

var timerDur = setInterval(function() {
    counter = counter + 100;
    if (counter > 2000) {
        clearInterval(timerDur);
    }
    var dur = my_media.getDuration();
    if (dur > 0) {
        clearInterval(timerDur);
        document.getElementById('audio_duration').innerHTML = (dur) + " sec";
    }
}, 100);

I would recommend doing something similar.