微信小程序如何开发一个开屏动画slogo？

小程序不支持开屏slogo播放，但是你可以自己做个view组件来实现，组件内可以播放视频或者gif动画图片作为引导页，还可以跳过引导页，具体步骤如下：

新建一个组件叫kaiping_component

kaiping_component.wxml

<view class="kaiping_box">
<image src="{{imagepath}}" mode="aspectFill"></image>
<view class="kaiping-header">
<view class="kaiping-btn" bindtap="skipAnimation">跳过 {{second}}s</view>
</view>
</view>

kaiping_component.js

// component/kaiping_component.js
Component({
/**
* 组件的属性列表
*/
properties: {
imagepath: {
type: String
},
second: {
type: Number
}
},

/**
* 组件的初始数据
*/
data: {
timer: null
},

lifetimes: {
created: function () {

},
attached: function () {
let secondTime = this.data.second;
let that = this;

const timer = setInterval(function () {
let nowSecond = --that.data.second;
if (nowSecond <= 0) {
clearInterval(timer);
that.hideKaiping();
}
console.log(nowSecond);
that.setData({
second: nowSecond
});
}, 1000);
this.setData({
timer: timer
});
}
},

/**
* 组件的方法列表
*/
methods: {
hideKaiping: function () {
this.triggerEvent("hide");

},
skipAnimation: function () {
this.hideKaiping();
let timer = this.data.timer;
if (timer) {
clearInterval(timer);
}
}
}
})

kaiping_component.wxss

/* component/kaiping_component.wxss */

.kaiping_box {
position: fixed;
top: 0;
left: 0;
width: 100vw;
height: 100vh;
z-index: 2;
}

.kaiping_box image {
width: 100%;
height: 100%;
}

.kaiping-header {
position: absolute;
top: 100rpx;
left: 5px;
width: 96%;
display: flex;
}
.kaiping-second, .kaiping-btn {
font-size: 12px;
color: white;
border: 1px solid white;
padding: 1px 6px;
border-radius: 10px;
}

kaiping_component.json

{
"component": true,
"usingComponents": {}
}

使用开屏组件示例

index.wxml

<view class="intro">原本的首页</view>

<kaiping-component wx:if="{{kaipingFlag}}"
imagepath="/image/image.png"
second="{{10}}"
bind:hide="onMyEvent" ></kaiping-component>

index.json

{
"usingComponents": {
"kaiping-component": "/component/kaiping_component"
},
"navigationStyle": "custom"
}
1

index.js

const app = getApp()

Page({
	data: {
	kaipingFlag: true
},
onLoad: function () {
	wx.hideTabBar();
},
onMyEvent: function () {
	console.log("close");
	this.setData({
		kaipingFlag: false
	});
	wx.showTabBar();
}
})

上面的index.wxml要修改一下：

index.wxml

<view class="intro">原本的首页</view>

<kaiping-component wx:if="{{kaipingFlag}}" style="z-index: 10000;position: fixed;"
imagepath="/image/image.png"
second="{{10}}"
bind:hide="onMyEvent" ></kaiping-component>