学习js,因为函数和定时器直接的关系是非绑定的。我不能说我开启一个定时,然后拿一个变量去记录这个setInterval的返回值,这样很麻烦。
本着面向对象的思想,利用业余时间(周末在家里)写了一个类,用来管理定时器。
吐槽下jQuery,不知道是不是我的jQuery版本太低,貌似jQuery没有提供很好的定时器管理类。
好废话不多说,上代码:
function TimeControlEx() {
var nCount = 0;
var oTimerIDs = []; //ID,Name
var that = this;
var nTimerId = 0;
this.ExecOnce = function (funcid) {
if (oTimerIDs[funcid].Limit == 0) {
//只要归零了,肯定是定时的,对于这种,就得关闭
clearInterval(oTimerIDs[funcid].TimerID);
}
};
this.add = function (nSec, oFunction, sName, nTimes) {
///<param name="nSec">延迟时间,毫秒</param>
///<param name="oFunction">调用函数</param>
///<param name="sName">定时器名称(可选)</param>
///<param name="nTimes">循环次数(可选)</param>
//todo:根据各个参数来创建,基础的参数是nSec和oFunction
var nParams = arguments.length;
var obj;
switch (nParams) {
case 2:
//两个参数,自动增加
nTimerId = setInterval(oFunction, nSec);
obj = {
ID: nCount,
TimerID:nTimerId,
Name: String(nCount),
Interval: nSec,
Limit: -1
};
oTimerIDs.push(obj);
break;
case 3:
//三个参数
nTimerId = setInterval(oFunction, nSec);
obj = {
ID: nCount,
TimerID: nTimerId,
Name: sName,
Interval: nSec,
Limit: -1
};
oTimerIDs.push(obj);
break;
case 4:
//四个参数
obj = {
ID: nCount,
TimerID: nTimerId,
Name: sName,
Interval: nSec,
Limit: nTimes
};
oTimerIDs.push(obj);
break;
default:
return;
}
};
this.CloseTimer = function (sTimerName) {
///<param name="sTimerName">计时器的名字,或ID</param>
if (typeof (sTimerName) == "number") {
//按照数字方法关闭
for (var j = 0; j < oTimerIDs.length; j++) {
if (oTimerIDs[j].ID == sTimerName) {
clearInterval(oTimerIDs[j].TimerID);
oTimerIDs = oTimerIDs.splice(j, 1);
nCount--;
break;
}
}
} else {
//按照字符串方式关闭
for (var m = 0; m < oTimerIDs.length; m++) {
if (oTimerIDs[m].Name == sTimerName) {
clearInterval(oTimerIDs[m].TimerID);
oTimerIDs.splice(m, 1);
nCount--;
break;
}
}
}
};
}
编辑:今天查看后,发现代码存在严重的bug,修复了一下,现在放出修改后的代码:
function TimeControlEx() {
var nCount = 0;
var oTimerIDs = []; //ID,Name
var that = this;
var nTimerId = 0;
this.ExecOnce = function (funcid) {
if (oTimerIDs[funcid].Limit == 0) {
//只要归零了,肯定是定时的,对于这种,就得关闭
clearInterval(oTimerIDs[funcid].TimerID);
}
};
this.add = function (nSec, oFunction, sName, nTimes) {
///<param name="nSec">延迟时间,毫秒</param>
///<param name="oFunction">调用函数</param>
///<param name="sName">定时器名称(可选)</param>
///<param name="nTimes">循环次数(可选)</param>
//todo:根据各个参数来创建,基础的参数是nSec和oFunction
var nParams = arguments.length;
var obj;
switch (nParams) {
case 2:
//两个参数,自动增加
nTimerId = setInterval(oFunction, nSec);
obj = {
ID: nCount,
TimerID: nTimerId,
Name: String(nCount),
Interval: nSec,
Limit: -1
};
oTimerIDs.push(obj);
break;
case 3:
//三个参数
nTimerId = setInterval(oFunction, nSec);
obj = {
ID: nCount,
TimerID: nTimerId,
Name: sName,
Interval: nSec,
Limit: -1
};
oTimerIDs.push(obj);
break;
case 4:
//四个参数
obj = {
ID: nCount,
TimerID: 0,
Name: sName,
Interval: nSec,
Limit: nTimes
};
var oFunc = function (oThis, oMyFunc) {
var oThat = oThis;
var oMyFun = oMyFunc;
var oRun = function () {
if (oThat.Limit > 0 || oThat.Limit == -1) {
oMyFun(); //执行传入的函数
if (oThat.Limit > 0) oThat.Limit--;
} else {
//自行了断
clearInterval(oThat.TimerID);
}
};
return oRun;
};
nTimerId = setInterval(oFunc(obj, oFunction), nSec);
obj.TimerID = nTimerId;
oTimerIDs.push(obj);
break;
default:
return;
}
};
this.CloseTimer = function (sTimerName) {
///<param name="sTimerName">计时器的名字,或ID</param>
if (typeof (sTimerName) == "number") {
//按照数字方法关闭
for (var j = 0; j < oTimerIDs.length; j++) {
if (oTimerIDs[j].ID == sTimerName) {
clearInterval(oTimerIDs[j].TimerID);
oTimerIDs = oTimerIDs.splice(j, 1);
nCount--;
break;
}
}
} else {
//按照字符串方式关闭
for (var m = 0; m < oTimerIDs.length; m++) {
if (oTimerIDs[m].Name == sTimerName) {
clearInterval(oTimerIDs[m].TimerID);
oTimerIDs.splice(m, 1);
nCount--;
break;
}
}
}
};
}
谢谢大家的支持