微信小程序 - 发送视频弹幕
微信小程序官方文档提供了发送视频弹幕的功能，参照其功能做了一些改动，实现可发送用户自定义颜色的弹幕。
function getRandomColor() {
var rgb = [];
for (var i = 0; i < 3; ++i) {
var color = Math.floor(Math.random() * 256).toString(16);
color = color.length == 1 ? '0' + color : color;
rgb.push(color);
}
return '#' + rgb.join('');
}
Page({
inputValue: '',
data: {
isRandomColor: true,
src: '',
numberColor: "#ff0000",
danmuList: [{
text: '第 1s 出现的红色弹幕',
color: '#ff0000',
time: 1
}, {
text: '第 2s 出现的绿色弹幕',
color: '#00ff00',
time: 2
}]
},
onLoad: function onLoad() {
var _this = this;
wx.getSystemInfo({
success: function success(res) {
// video标签默认宽度300px、高度225px
var windowWidth = res.windowWidth;
var videoHeight = 225 / 300 * windowWidth;
_this.setData({
videoWidth: windowWidth,
videoHeight: videoHeight
});
}
});
},
onReady: function onReady(res) {
this.videoContext = wx.createVideoContext('myVideo');
},
onShow: function onShow() {
var _this = this;
wx.getStorage({
key: 'numberColor',
success: function success(res) {
_this.setData({
numberColor: res.data
});
}
});
},
bindInputBlur: function(e) {
this.inputValue = e.detail.value;
},
bindSendDanmu: function() {
if (this.data.isRandomColor) {
var color = getRandomColor();
} else {
var color = this.data.numberColor;
}
this.videoContext.sendDanmu({
text: this.inputValue,
color: color
});
},
videoErrorCallback: function(e) {
console.log('视频错误信息:');
console.log(e.detail.errMsg);
},
switchChange: function(e) {
this.setData({
isRandomColor: e.detail.value
});
},
//跳转到选择颜色的页面
selectColor: function() {
wx.navigateTo({
url: '../selectColor/selectColor',
success: function(res) {
},
fail: function fail() {
},
complete: function() {
}
});
}
});
<view class="section tc">
<video id="myVideo" style="height:{{videoHeight}}px;width:{{videoWidth}}px" src="http://wxsnsdy.tc.qq.com/105/20210/snsdyvideodownload?filekey=30280201010421301f0201690402534804102ca905ce620b1241b726bc41dcff44e00204012882540400&bizid=1023&hy=SH&fileparam=302c020101042530230204136ffd93020457e3c4ff02024ef202031e8d7f02030f42400204045a320a0201000400" binderror="videoErrorCallback" danmu-list="{{danmuList}}" enable-danmu danmu-btn controls></video>
<view class="btn-area">
<view class="weui-cell weui-cell_input">
<view class="weui-cell__bd">
<input class="weui-input" placeholder="请输入弹幕" bindblur="bindInputBlur" />
</view>
</view>
<button type="primary" style="margin:30rpx;" bindtap="bindSendDanmu">发送弹幕</button>
</view>
</view>
<view class="weui-cells weui-cells_after-title">
<view class="weui-cell weui-cell_switch">
<view class="weui-cell__bd">随机颜色</view>
<view class="weui-cell__ft">
<switch checked bindchange="switchChange" />
</view>
</view>
<view class="colorstyle" bindtap="selectColor">
<text>选择颜色</text>
<view style="height:80rpx;width:80rpx;line-height: 100rpx;margin:10rpx;background-color:{{numberColor}}"></view>
</view>
</view>
.weui-cells {
position: relative;
margin-top: 1.17647059em;
background-color: #FFFFFF;
line-height: 1.41176471;
font-size: 17px;
}
.weui-cells:before {
content: " ";
position: absolute;
left: 0;
top: 0;
right: 0;
height: 1px;
border-top: 1rpx solid #D9D9D9;
color: #D9D9D9;
}
.weui-cells:after {
content: " ";
position: absolute;
left: 0;
bottom: 0;
right: 0;
height: 1px;
border-bottom: 1rpx solid #D9D9D9;
color: #D9D9D9;
}
.weui-cells_after-title {
margin-top: 0;
}
.weui-cell__bd {
-webkit-box-flex: 1;
-webkit-flex: 1;
flex: 1;
}
.weui-cell__ft {
text-align: right;
color: #999999;
}
.weui-cell {
padding: 10px 10px;
position: relative;
display: -webkit-box;
display: -webkit-flex;
display: flex;
-webkit-box-align: center;
-webkit-align-items: center;
align-items: center;
}
.weui-cell:before {
content: " ";
position: absolute;
top: 0;
right: 0;
height: 1px;
border-top: 1rpx solid #D9D9D9;
color: #D9D9D9;
left: 15px;
}
.weui-cell:first-child:before {
display: none;
}
.colorstyle{
border-top: 2px solid #eee;
border-bottom: 2px solid #eee;
padding-left: 10px;
padding-right: 10px;
font-size: 17px;
line-height: 100rpx;
display: flex;
flex-direction: row;
justify-content:space-between;
}
.vertical {
height: 40px;
position: absolute;
top: 50%;
margin-top: -20px;
}
效果如图：
下面是选择弹幕文字颜色的页面，选择文字颜色之后跳转回发送弹幕页面
var app = getApp()
Page({
data: {
color: [
{ key: 1, color: ' 白色 ', number: '#FFFFFF' },
{ key: 2, color: ' 红色 ', number: '#FF0000' },
{ key: 3, color: ' 绿色 ', number: '#00FF00' },
{ key: 4, color: ' 蓝色 ', number: '#0000FF' },
{ key: 5, color: ' 牡丹红 ', number: '#FF00FF' },
{ key: 6, color: ' 青色 ', number: '#00FFFF' },
{ key: 7, color: ' 黄色 ', number: '#FFFF00' },
{ key: 8, color: ' 黑色 ', number: '#000000' },
{ key: 9, color: ' 海蓝 ', number: '#70DB93' },
{ key: 10, color: ' 巧克力色 ', number: '#5C3317' },
{ key: 11, color: ' 蓝紫色 ', number: '#9F5F9F' },
{ key: 12, color: ' 黄铜色 ', number: '#B5A642' },
{ key: 13, color: ' 亮金色 ', number: '#D9D919' },
{ key: 14, color: ' 棕色 ', number: '#A67D3D' },
{ key: 15, color: ' 青铜色 ', number: '#8C7853' },
{ key: 16, color: ' 2号青铜色 ', number: '#A67D3D' },
{ key: 17, color: ' 士官服蓝色 ', number: '#5F9F9F' },
{ key: 18, color: ' 冷铜色 ', number: '#D98719' },
{ key: 19, color: ' 铜色 ', number: '#B87333' },
{ key: 20, color: ' 珊瑚红 ', number: '#FF7F00' },
{ key: 21, color: ' 紫蓝色 ', number: '#42426F' },
{ key: 22, color: ' 深棕 ', number: '#5C4033' },
{ key: 23, color: ' 深绿 ', number: '#2F4F2F' },
{ key: 24, color: ' 深铜绿色 ', number: '#4A766E' },
{ key: 25, color: ' 深橄榄绿 ', number: '#4F4F2F' },
{ key: 26, color: ' 深兰花色 ', number: '#9932CD' },
{ key: 27, color: ' 深紫色 ', number: '#871F78' },
{ key: 28, color: ' 深石板蓝 ', number: '#6B238E' },
{ key: 29, color: ' 深铅灰色 ', number: '#2F4F4F' },
{ key: 30, color: ' 深棕褐色 ', number: '#97694F' },
{ key: 32, color: ' 深绿松石色 ', number: '#7093DB' },
{ key: 33, color: ' 暗木色 ', number: '#855E42' },
{ key: 34, color: ' 淡灰色 ', number: '#545454' },
{ key: 35, color: ' 土灰玫瑰红色 ', number: '#856363' },
{ key: 36, color: ' 长石色 ', number: '#D19275' },
{ key: 37, color: ' 火砖色 ', number: '#8E2323' },
{ key: 38, color: ' 森林绿 ', number: '#238E23' },
{ key: 39, color: ' 金色 ', number: '#CD7F32' },
{ key: 40, color: ' 鲜黄色 ', number: '#DBDB70' },
{ key: 41, color: ' 灰色 ', number: '#C0C0C0' },
{ key: 42, color: ' 铜绿色 ', number: '#527F76' },
{ key: 43, color: ' 青黄色 ', number: '#93DB70' },
{ key: 44, color: ' 猎人绿 ', number: '#215E21' },
{ key: 45, color: ' 印度红 ', number: '#4E2F2F' },
{ key: 46, color: ' 土黄色 ', number: '#9F9F5F' },
{ key: 47, color: ' 浅蓝色 ', number: '#C0D9D9' },
{ key: 48, color: ' 浅灰色 ', number: '#A8A8A8' },
{ key: 49, color: ' 浅钢蓝色 ', number: '#8F8FBD' },
{ key: 59, color: ' 浅木色 ', number: '#E9C2A6' },
{ key: 60, color: ' 石灰绿色 ', number: '#32CD32' },
{ key: 61, color: ' 桔黄色 ', number: '#E47833' },
{ key: 62, color: ' 褐红色 ', number: '#8E236B' },
{ key: 63, color: ' 中海蓝色 ', number: '#32CD99' },
{ key: 64, color: ' 中蓝色 ', number: '#3232CD' },
{ key: 65, color: ' 中森林绿 ', number: '#6B8E23' },
{ key: 66, color: ' 中鲜黄色 ', number: '#EAEAAE' },
{ key: 67, color: ' 中兰花色 ', number: '#9370DB' },
{ key: 68, color: ' 中海绿色 ', number: '#426F42' },
{ key: 69, color: ' 中石板蓝色 ', number: '#7F00FF' },
{ key: 70, color: ' 中春绿色 ', number: '#7FFF00' },
{ key: 71, color: ' 中绿松石色 ', number: '#70DBDB' },
{ key: 72, color: ' 中紫红色 ', number: '#DB7093' },
{ key: 73, color: ' 中木色 ', number: '#A68064' },
{ key: 74, color: ' 深藏青色 ', number: '#2F2F4F' },
{ key: 75, color: ' 海军蓝 ', number: '#23238E' },
{ key: 76, color: ' 霓虹篮 ', number: '#4D4DFF' },
{ key: 77, color: ' 霓虹粉红 ', number: '#FF6EC7' },
{ key: 78, color: ' 新深藏青色 ', number: '#00009C' },
{ key: 79, color: ' 新棕褐色 ', number: '#EBC79E' },
{ key: 80, color: ' 暗金黄色 ', number: '#CFB53B' },
{ key: 81, color: ' 橙色 ', number: '#FF7F00' }
],
},
selectColor: function (e) {
var number = e.currentTarget.dataset.number;
try {
wx.setStorageSync('numberColor', number)
} catch (e) {
}
wx.navigateBack({
delta: 1,
success: function (res) {
},
fail: function () {
},
complete: function () {
}
})
}
})
<view class="page">
<view class="page__bd">
<view class="weui-grids">
<block wx:for-items="{{color}}" >
<view class="weui-grid" data-number="{{item.number}}" bindtap="selectColor" >
<view class="weui-grid__icon" style="background:{{item.number}}"/>
</view>
</block>
</view>
</view>
</view>
.weui-grids {
border-top: 1rpx solid #D9D9D9;
border-left: 1rpx solid #D9D9D9;
}
.weui-grid {
position: relative;
float: left;
padding: 20rpx 20rpx;
width: 20%;
box-sizing: border-box;
border-right: 1rpx solid #D9D9D9;
border-bottom: 1rpx solid #D9D9D9;
}
.weui-grid_active {
background-color: #ccc;
}
.weui-grid__icon {
display: block;
width: 100rpx;
height: 100rpx;
margin: 0 auto;
box-shadow: 3px 3px 5px #bbb;
}
.weui-grid__label {
margin-top: 5px;
display: block;
text-align: center;
color: #000000;
font-size: 14px;
white-space: nowrap;
text-overflow: ellipsis;
overflow: hidden;
}
效果如图：
