<div class="barrage"><div class="mask"><!--//彈幕內(nèi)容--></div></div><input type="text" ng-model="data.comment"/><button ng-click="addDanmu()">說兩句</button >

.webPage .barrage{width:100%;height:22%;position: absolute; bottom: 50px; background-color: transparent;pointer-events: none;}.webPage .barrage .mask{width:100%;height:100%;background:transparent;z-index:100;}

$scope.data = {comment:''};$scope.danmuCount = 5; //最大彈幕行數(shù)$scope.danmus = ['1545466666還是','9777777','哈哈哈哈哈','對企業(yè)讀完后環(huán)球網(wǎng)好齊齊哈','42115我我我5','556噢噢噢噢45','54哦','54545646','666但近段時間66','56565','454465465565', '1545466666還是','9777777','哈哈哈哈哈','對企業(yè)讀完后環(huán)球網(wǎng)好齊齊哈','42115我我我5','556噢噢噢噢45','54哦','54545646','666但近段時間66','56565','454465465565']; //彈幕數(shù)據(jù)源//創(chuàng)建彈幕區(qū)域$scope.createDanmuContent = function () {var height = 1 / $scope.danmuCount * 100 + '%';for (var i = 0; i < $scope.danmuCount; i++) {var item = '<div style="width: 100%; height: '+height+'"></div>';$('.mask').append(item);} $scope.createDanmu ();};//開始彈幕繪制$scope.createDanmu = function () {var maxCount = 0;if ($scope.danmus.length > $scope.danmuCount) { maxCount = $scope.danmuCount; } else {maxCount = $scope.danmus.length;}var _left = window.screen.width;for (var i = 0; i < maxCount; i++) {var _lable = $("<p style='margin: 0;position: absolute;opacity:1;display:table;left: "+_left + 'px'+';color:'+$scope.getRandomColor()+"'>"+$scope.danmus[i]+"</p>");$(".mask div").each(function () {//檢測該區(qū)域是否繪制了彈幕if ($scope.checkDanmu($(this))) {$(this).append(_lable);$scope.moveArray(i); i--;return false;}});}$scope.init_barrage();};//將數(shù)組第一位放到最后一位,（因彈幕池內(nèi)容太少，所以沒刪除已顯示的彈幕）$scope.moveArray = function (i) { var temp = $scope.danmus[i];$scope.danmus.splice(i,1);$scope.danmus.push(temp);}//判斷content區(qū)域有沒有彈幕$scope.checkDanmu = function (el) {return el.find('p').length == 0 ? true : false;};//獲取隨機顏色$scope.getRandomColor = function () {return '#' + (function(h){return new Array(7 - h.length).join("0") + h})((Math.random() * 0x1000000 << 0).toString(16))};//初始化彈幕參數(shù)$scope.init_barrage = function () {$(".mask div p").show().each(function() { var _moveLeft = window.screen.width+$(this).width();var time = 100000 / $(this).width() + 5000;//彈幕滑動時間$scope.addCssAnimate($(this),_moveLeft,time);});};//添加彈幕動畫$scope.addCssAnimate = function (el,_moveLeft,time) {el.css({'transform':'translateX('+-_moveLeft+'px)','transition':'all '+time+'ms'+ ' linear','-webkit-transform':'translateX('+-_moveLeft+'px)','-webkit-transition':'all '+time+'ms'+ ' linear','-moz-transform':'translateX('+-_moveLeft+'px)','-moz-transition':'all '+time+'ms'+ ' linear','-ms-transform':'translateX('+-_moveLeft+'px)','-ms-transition':'all '+time+'ms'+ ' linear'});//當動畫執(zhí)行完畢后，將彈幕移到原處，更換彈幕文字，重新開始執(zhí)行動畫，相當于對原本彈幕的復(fù)用$timeout(function () {//判斷彈幕池是否還有內(nèi)容，如果沒有則移除彈幕if ($scope.danmus.length > 0) {el.css({'transform':'translateX(0px)','transition':'all 0ms linear','-webkit-transform':'translateX(0px)','-webkit-transition':'all 0ms linear','-moz-transform':'translateX(0px)','-moz-transition':'all 0ms linear','-ms-transform':'translateX(0px)','-ms-transition':'all 0ms linear'});$scope.resetAnimate(el);} else {el.remove();}},time);};//更換彈幕內(nèi)容，重新開始彈幕動畫$scope.resetAnimate = function (el) {el.html($scope.danmus[0]);$scope.moveArray(0);var _moveLeft = el.width() + screen.width;var time = 100000 / el.width() + 5000;$scope.addCssAnimate(el,_moveLeft,time);};//評論，添加彈幕$scope.addDanmu = function () {var text = $scope.data.comment;if(text == ""){return;}$scope.danmus.unshift(text);};$scope.createDanmuContent();