license: Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at
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Set the volume for an audio file.
media.setVolume(volume);
Function media.setVolume
is an asynchronous function that sets the volume during audio playback.
// Play audio // function playAudio(url) { // Play the audio file at url var my_media = new Media(url, // success callback function() { console.log("playAudio():Audio Success"); }, // error callback function(err) { console.log("playAudio():Audio Error: "+err); }); // Play audio my_media.play(); // Mute volume after 2 seconds setTimeout(function() { my_media.setVolume('0.0'); }, 2000); // Set volume to 1.0 after 5 seconds setTimeout(function() { my_media.setVolume('1.0'); }, 5000); }
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <title>Media Example</title> <script type="text/javascript" charset="utf-8" src="cordova-2.8.0.js"></script> <script type="text/javascript" charset="utf-8"> // Wait for Cordova to load // document.addEventListener("deviceready", onDeviceReady, false); // Cordova is ready // function onDeviceReady() { playAudio("http://audio.ibeat.org/content/p1rj1s/p1rj1s_-_rockGuitar.mp3"); } // Audio player // var my_media = null; var mediaTimer = null; // Play audio // function playAudio(src) { // Create Media object from src my_media = new Media(src, onSuccess, onError); // Play audio my_media.play(); // Update my_media position every second if (mediaTimer == null) { mediaTimer = setInterval(function() { // get my_media position my_media.getCurrentPosition( // success callback function(position) { if (position > -1) { setAudioPosition((position) + " sec"); } }, // error callback function(e) { console.log("Error getting pos=" + e); setAudioPosition("Error: " + e); } ); }, 1000); } } // Set audio volume // function setVolume(volume) { if (my_media) { my_media.setVolume(volume); } } // Stop audio // function stopAudio() { if (my_media) { my_media.stop(); } clearInterval(mediaTimer); mediaTimer = null; } // onSuccess Callback // function onSuccess() { console.log("playAudio():Audio Success"); } // onError Callback // function onError(error) { alert('code: ' + error.code + '\n' + 'message: ' + error.message + '\n'); } // Set audio position // function setAudioPosition(position) { document.getElementById('audio_position').innerHTML = position; } </script> </head> <body> <a href="#" class="btn large" onclick="playAudio('http://audio.ibeat.org/content/p1rj1s/p1rj1s_-_rockGuitar.mp3');">Play Audio</a> <a href="#" class="btn large" onclick="setVolume('0.0');">Mute Audio</a> <a href="#" class="btn large" onclick="setVolume('1.0');">Unmute Audio</a> <a href="#" class="btn large" onclick="stopAudio();">Stop Playing Audio</a> <p id="audio_position"></p> </body> </html>