javascript实现滑动解锁功能

实现效果：

css样式代码略。

html代码：

页面上导入了jquery.mobile 、jquery

<script src="http://apps.bdimg.com/libs/jquery/1.10.2/jquery.min.js"></script>

<script src="http://apps.bdimg.com/libs/jquerymobile/1.4.2/jquery.mobile.min.js"></script>

<div id="pageSlide">

                        <input type="hidden" value="" id="captcha"/>

                        <div id="slider" class="slider">

                            <span id="label" class="label"></span>

                            <span id="lableTip">Slide to confirm I am human!</span>

                        </div>

                    </div>

js代码：

<script type="text/javascript">

        window.onload = function () {

            var slider1 = new Slider();

            slider1.Init();

            ///屏幕大小发生改变时触发

            $(window).resize(function () {

                slider1.HanderIn();

                slider1.HanderOut();

            });

        }

        //滑动条对象

        function Slider(swipestart, min, max, index, IsOk, lableIndex) {

            var _self = this;

            //是否开始滑动

            _self.swipestart = swipestart;

            //最小值

            _self.min = min;

            //最大值

            _self.max = max;

            //当前滑动条所处的位置

            _self.index = index;

            //是否滑动成功

            _self.IsOk = IsOk;

            //鼠标在滑动按钮的位置

            _self.lableIndex = lableIndex;

        }

        //初始化

        Slider.prototype.Init = function () {

            var _self = this;

            $("#label").on("mousedown", function (event) {

                var e = event || window.event;

                _self.lableIndex = e.clientX - this.offsetLeft;

                _self.HanderIn();

            });

            $("#pageSlide").on("mousemove", function (event) {

                _self.HanderMove(event);

            });

            $(document).on("mouseup", function (event) {

                _self.HanderOut();

            });

            $("#label").on("touchstart", function (event) {

                var e = event || window.event;

                _self.lableIndex = e.originalEvent.pageX - this.offsetLeft;

                _self.HanderIn();

            });

            $("#pageSlide").on("touchmove", function (event) {

                _self.HanderMove(event, "mobile");

            });

            $(document).on("touchend", function (event) {

                _self.HanderOut();

            });

        }

        //鼠标/手指接触滑动按钮

        Slider.prototype.HanderIn = function () {

            var _self = this;

            _self.swipestart = true;

            _self.min = 0;

            _self.max = $("#slider").width();

        }

        //鼠标/手指移出

        Slider.prototype.HanderOut = function () {

            var _self = this;

            //停止

            _self.swipestart = false;

            _self.Move();

        }

        //鼠标/手指移动

        Slider.prototype.HanderMove = function (event, type) {

            var _self = this;

            if (_self.swipestart) {

                event.preventDefault();

                var event = event || window.event;

                if (type == "mobile") {

                    _self.index = event.originalEvent.pageX - _self.lableIndex;

                } else {

                    _self.index = event.clientX - _self.lableIndex;

                }

                _self.Move();

            }

        }

        //鼠标/手指移出

        Slider.prototype.Move = function () {

            var _self = this;

            $(".warn").text("index:" + _self.index + "， max" + _self.max + ",lableIndex:" + _self.lableIndex + ",value:" + $("#captcha").val() + " date:" + new Date().getUTCDate());

            if ((_self.index + 20) >= _self.max) {

                _self.index = _self.max - 20;

            }

            if (_self.index < 0) {

                _self.index = _self.min;

            }

            $(".label").css("left", _self.index + "px");

            if (_self.index == (_self.max - 20)) {

                //停止

                _self.swipestart = false;

                _self.IsOk = true;//解锁

                $("#captcha").val(1);

                var style = {"filter": "alpha(opacity=1)",

                    "-moz-opacity": "1", "opacity": "1"}

                $(".ui-btn.ui-input-btn.ui-corner-all.ui-shadow").css(style);

                $("#slider").css("background-color", "#E5EE9F");

                $("#lableTip").text("Thank You!");

            } else {

                _self.IsOk = false;//未解锁

                $("#captcha").val(0);

                var style = { "filter": "alpha(opacity=0.2)",

                    "-moz-opacity": "0.2", "opacity": "0.2"}

                $(".ui-btn.ui-input-btn.ui-corner-all.ui-shadow").css(style);

                $("#slider").css("background-color", "#FDEB9C");

                $("#lableTip").text("Slide to confirm I am human!");

            }

        }

    </script>

效果实现：