本文实例为大家分享了小程序左右来回滚动字幕的具体代码，供大家参考，具体内容如下wxm
本文实例为大家分享了小程序左右来回滚动字幕的具体代码，供大家参考，具体内容如下
wxml:
<!--pages/market/market.wxml-->
<swiper indicator-dots="{{indicatorDots}}"
autoplay="{{autoplay}}" interval="{{interval}}" duration="{{duration}}">
<block wx:for="{{imgUrls}}" wx:key="unique">
<swiper-item>
<image src="{{item}}" class="slide-image"/>
</swiper-item>
</block>
</swiper>
<!--弹幕开关-->
<view class="barrage-Switch" style="color:{{barrageTextColor}};">
<switch id="switch_" bindchange="barrageSwitch"/>
<text>弹幕</text>
</view>
<!--弹幕输入框-->
<view class="barrage-inputText" style="display:{{barrage_inputText}}">
<view class="barrage-input">
<input bindblur="bind_shoot" value="{{bind_shootValue}}"/>
</view>
<view class="barrage-shoot">
<button class="shoot" size="mini" bindtap="shoot">发射</button>
</view>
</view>
<!--弹幕上单文字-->
<view class="barrage-fly" style="display:{{barragefly_display}}">
<block wx:for="{{barrage_style}}" wx:key="unique">
<text class="barrage-textFly" style="color:{{item.barrage_shoottextColor}};left:{{item.barrage_phoneWidth}}px;top:{{item.barrageText_height}}px;">{{item.barrage_shootText}}</text>
</block>
</view>wxss:
/* pages/market/market.wxss */
.slide-image{
width: 100%;
}
/* 弹幕选择按钮的操作*/
.barrage-Switch{
position: absolute;
bottom: 10px;
right: 10px;
z-index: 2;
}
/* 弹幕输入框的操作*/
.barrage-inputText{
position: absolute;
display: flex;
background-color: #BFBFBF;
width: 100%;
height: 40px;
flex-direction: row;
nav-index: 2;
justify-content: center;
align-items: center;
bottom: 10%;
}
.barrage-input{
background-color: greenyellow;
width: 60%;
height: 30px;
}
.barrage-shoot{
margin-left: 10px;
width: 25%;
height: 30px;
}
.shoot{
width: 100%;
color: black;
}
/*弹幕飞飞飞*/
.barrage-fly{
z-index: 3;
height: 80%;
width: 100%;
position: absolute;
top: 0;
}
.barrage-textFly{
position: absolute;
}market.js
// pages/market/market.js
var barrage_style_arr = [];
var barrage_style_obj = {};
var phoneWidth = 0;
var timers = [];
var timer;
Page({
data: {
imgUrls: [
'http://img02.tooopen.com/images/20150928/tooopen_sy_143912755726.jpg',
'http://img06.tooopen.com/images/20160818/tooopen_sy_175866434296.jpg',
'http://img06.tooopen.com/images/20160818/tooopen_sy_175833047715.jpg'
],
indicatorDots: true,
autoplay: true,
interval: 3000,
duration: 500,
barrageTextColor: "#D3D3D3",
barrage_inputText: "none",
barrage_shoottextColor: "black",
bind_shootValue: "",
barrage_style: [],
barragefly_display: "none",
},
// 生命周期函数--监听页面加载
onLoad: function (options) {
var that = this;
//获取屏幕的宽度
wx.getSystemInfo({
success: function (res) {
that.setData({
barrage_phoneWidth: res.windowWidth - 100,
})
}
})
phoneWidth = that.data.barrage_phoneWidth;
console.log(phoneWidth);
},
//是否打开弹幕...
barrageSwitch: function (e) {
console.log(e);
//先判断没有打开
if (!e.detail.value) {
//清空弹幕
barrage_style_arr = [];
//设置data的值
this.setData({
barrageTextColor: "#D3D3D3",
barrage_inputText: "none",
barragefly_display: "none",
barrage_style: barrage_style_arr,
});
//清除定时器
clearInterval(timer);
} else {
this.setData({
barrageTextColor: "#04BE02",
barrage_inputText: "flex",
barragefly_display: "block",
});
//打开定时器
timer = setInterval(this.barrageText_move, 800)
}
},
//发射按钮
shoot: function (e) {
//字体颜色随机
var textColor = "rgb(" + parseInt(Math.random() * 256) + "," + parseInt(Math.random() * 256) + "," + parseInt(Math.random() * 256) + ")";
// //设置弹幕字体的水平位置样式
// var textWidth = -(this.data.bind_shootValue.length*0);
//设置弹幕字体的垂直位置样式
var barrageText_height = (Math.random()) * 266;
barrage_style_obj = {
// textWidth:textWidth,
barrageText_height: barrageText_height,
barrage_shootText: this.data.bind_shootValue,
barrage_shoottextColor: textColor,
barrage_phoneWidth: phoneWidth
};
barrage_style_arr.push(barrage_style_obj);
this.setData({
barrage_style: barrage_style_arr, //发送弹幕
bind_shootValue: "" //清空输入框
})
//定时器 让弹幕动起来
// this.timer= setInterval(this.barrageText_move,800);
},
//定时器 让弹幕动起来
barrageText_move: function () {
var timerNum = barrage_style_arr.length;
var textMove;
for (var i = 0; i < timerNum; i++) {
textMove = barrage_style_arr[i].barrage_phoneWidth;
console.log("barrage_style_arr[" + i + "].barrage_phoneWidth----------:" + barrage_style_arr[i].barrage_phoneWidth);
textMove = textMove - 20;
barrage_style_arr[i].barrage_phoneWidth = textMove;
//走完的移除掉
if (textMove <= -100) {
// clearTimeout(this.timer);
barrage_style_arr.splice(0, 1);
i--;
//全部弹幕运行完
if (barrage_style_arr.length == 0) {
this.setData({
barrage_style: barrage_style_arr,
})
// clearInterval(this.timer);
return;
}
}
console.log("第" + i + "个定时器:", textMove);
this.setData({
barrage_style: barrage_style_arr,
})
}
},
//绑定发射输入框，将值传递给data里的bind_shootValue，发射的时候调用
bind_shoot: function (e) {
this.setData({
bind_shootValue: e.detail.value
})
},
})
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。
小程序左右来回滚动字幕 小程序来回滚动字幕 小程序滚动字幕