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[英]How do I use Javascript to toggle play/pause for multiple videos when I click on the video?
[英]How do I toggle play/pause with SoundJS?
我正在使用SoundJS來構建偽MPC。 我已經按照所需的方式對聲音工具包按鈕進行了編程,但是我無法使循環以所需的方式工作。
我該如何解決這個問題。 警告,我是一位UI / UX設計師,仍然在學習Javascript,因此,如果您能在解釋時給我更多細節,那就太好了。 謝謝!
這是下面的一些代碼,但要查看實際運行情況,請在此處查看: http : //nowthatsgenius.com/clients/beatbox/
<body onload="init();">
<section class="player-container">
<article class="player-controls">
<ul class="player-controls">
<li class="player-controls-button" id="loop1" onclick="playSound(this)">Loop 1</li>
<li class="player-controls-button" id="loop2" onclick="playSound(this)">Loop 2</li>
</ul>
</article>
</section>
<section class="mpc-container">
<article class="mpc-title mpc-col">
<span class="text">V1</span>
</article>
<article class="mpc-controls mpc-col">
<ul class="mpc-controls-wrap">
<li class="mpc-controls-row">
<ul>
<li class="mpc-controls-button" id="a1" onclick="playSound(this)"></li>
<li class="mpc-controls-button" id="a2" onclick="playSound(this)"></li>
<li class="mpc-controls-button" id="a3" onclick="playSound(this)"></li>
<li class="mpc-controls-button" id="a4" onclick="playSound(this)"></li>
<li class="mpc-controls-button" id="a5" onclick="playSound(this)"></li>
</ul>
<ul>
<li class="mpc-controls-button" id="a6" onclick="playSound(this)"></li>
<li class="mpc-controls-button" id="a7" onclick="playSound(this)"></li>
<li class="mpc-controls-button" id="a8" onclick="playSound(this)"></li>
<li class="mpc-controls-button" id="a9" onclick="playSound(this)"></li>
<li class="mpc-controls-button" id="a10" onclick="playSound(this)"></li>
</ul>
</li>
</ul>
</article>
</section>
<script src="//code.jquery.com/jquery-1.11.2.min.js"></script>
<script src="//code.jquery.com/jquery-migrate-1.2.1.min.js"></script>
<script src="http://code.createjs.com/soundjs-0.6.0.min.js"></script>
<script>
var preload;
function init() {
if (!createjs.Sound.initializeDefaultPlugins()) {
document.getElementById("error").style.display = "block";
document.getElementById("content").style.display = "none";
return;
}
var assetsPath = "assets/";
var sounds = [
{id:"loop1", src:"loop1.mp3"},
{id:"loop2", src:"loop2.mp3"},
{id:"a1", src:"snare.wav"},
{id:"a2", src:"kick1.wav"},
{id:"a3", src:"clap1.wav"},
{id:"a4", src:"closedhat.wav"},
{id:"a5", src:"cymbal.wav"},
{id:"a6", src:"kick2.wav"},
{id:"a7", src:"clap2.wav"},
{id:"a8", src:"openhat.wav"},
{id:"a9", src:"voice1.wav"},
{id:"a10", src:"voice2.wav"},
];
$('.player-controls-button').attr("disabled",true);
createjs.Sound.alternateExtensions = ["mp3"];
createjs.Sound.addEventListener("fileload", createjs.proxy(handleLoadComplete, this));
createjs.Sound.registerSounds(sounds, assetsPath);
}
function playSound(target) {
var instance = createjs.Sound.play(target.id, createjs.Sound.INTERRUPT_NONE);
$(".player-controls-button").click(function(event) {
if (instance.playState == createjs.Sound.PLAY_SUCCEEDED) {
instance.stop();
}
else {
instance.play(target.id, createjs.Sound.INTERRUPT_NONE);
}
});
console.log(instance.playState);
}
</script>
</body>
您可以在開始播放聲音后通過將其分配給變量來修改聲音。 在這種情況下,我創建了變量loop1
和loop2
。
// Creating variables outside playSound() so they exist in the global scope.
var loop1 = null;
var loop2 = null;
function playSound(target) {
if(loop1){ // If loop1 exists, stop it.
loop1.stop();
}
if(loop2){ // If loop2 exists, stop it.
loop2.stop();
}
if(target.id == "loop1"){
// Assign value to var loop1
loop1 = createjs.Sound.play(target.id, createjs.Sound.INTERRUPT_NONE);
}
else if(target.id == "loop2"){
// Assign value to var loop2
loop2 = createjs.Sound.play(target.id, createjs.Sound.INTERRUPT_NONE);
}
else{
// Otherwise, create generic sound
var instance = createjs.Sound.play(target.id, createjs.Sound.INTERRUPT_NONE);
}
$(".player-controls-button").click(function(event) {
if (instance.playState == createjs.Sound.PLAY_SUCCEEDED) {
instance.stop();
}else {
instance.play(target.id, createjs.Sound.INTERRUPT_NONE);
}
});
console.log(instance.playState);
}
我建議您分離playSound(target)
函數以獲得聲音效果,並為您的音樂循環創建一個名為playLoop(target)
的新函數,以使其易於閱讀。 但這取決於你。
版本2
var loop1 = null;
var loop2 = null;
function playLoop(target){
// If loop1 exists, stop it and delete it
if(loop1){
loop1.stop();
loop1 = null;
}else if(target.id == "loop1"){
loop1 = createjs.Sound.play(target.id, createjs.Sound.INTERRUPT_NONE);
}
// If loop2 exists, stop it and delete it
if(loop2){
loop2.stop();
loop2 = null;
}else if(target.id == "loop2"){
loop2 = createjs.Sound.play(target.id, createjs.Sound.INTERRUPT_NONE);
}
}
當您將createjs.Sound.play()分配給變量時,該變量將成為AbstractSoundInstance
對象。 您可以通過許多很酷的方式對其進行修改,如果您想了解更多有關這些變量的信息,請參見以下文檔 。
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