我试图让一个for循环重复播放声音,直到变量发生变化:
var ding;
for(ding = 1; ding < 20; ding++) {
function chamada() {
jQuery.playSound('components/com_chat/sys/chamada');
}
var delay = ding * 2500;
setTimeout(chamada, delay);
if (ding == 0){
break;
}
}
带有playSound函数的外部.js文件:
(function($){$.extend({
playSound: function(){
return $(
'<audio autoplay="autoplay" style="display:none;">'
+ '<source src="' + arguments[0] + '.mp3" />'
+ '<source src="' + arguments[0] + '.ogg" />'
+ '<embed src="' + arguments[0] + '.mp3" hidden="true" autostart="true" loop="false" class="playSound" />'
+ '</audio>'
).appendTo('body');
}
});
})(jQuery);
EDITED
代码正在运行并将在循环结束时停止,但在我定义ding = 0时单击对话框时不会停止:
ConfirmDialog('answer');
function ConfirmDialog(message){
jQuery('<div></div>').appendTo('body')
.html('<div class="widget">answering</div>')
.dialog({
modal: true, title: 'answer', zIndex: 10000, autoOpen: true,
width: 'auto', resizable: false,
buttons: {
"Answer": function () {
ding = 0;
},
Cancelar: function () {
//...
}
},
close: function (event, ui) {
jQuery(this).remove();
}
});
};
}
当ding = 0时如何让它停止?
答案 0 :(得分:2)
var ding;
for(ding = 1; ding < 20; ding++) {
function chamada() {
jQuery.playSound('components/com_chat/sys/chamada');
}
var delay = ding * 2500;
setTimeout(chamada, delay);
if (ding == 0){
break;
}
}
在这段代码中,你的ding变量不会减少,所以它实际上不会达到0.
答案 1 :(得分:0)
我用这段代码解决了这个问题:
var stop_ding = 0;
var i = 1;
function myLoopChamada () {
setTimeout(function chamada() {
jQuery.playSound('components/com_chat/sys/chamada');
i++;
console.log('ding '+i);
if (i < 20) {
if(stop_ding != 1){
myLoopChamada();
}
}
}, 3000)
}
myLoopChamada();
允许for循环每3秒延迟一次,在它一次迭代之前,这就是为什么它无法停止。比我在对话框按钮上添加了答案功能:
stop_ding = 1;
根据其他问题:
How do I add a delay in a JavaScript loop?
希望它可以帮助别人!