js
// pages/fb/fb.js
const app = getApp()
const db = wx.cloud.database();//初始化数据库
Page({
/**
* 页面的初始数据
*/
data: {
imgbox: [],//选择图片
fileIDs: [],//上传云存储后的返回值
},
// 删除照片 &&
imgDelete1: function (e) {
let that = this;
let index = e.currentTarget.dataset.deindex;
let imgbox = this.data.imgbox;
imgbox.splice(index, 1)
that.setData({
imgbox: imgbox
});
},
// 选择图片 &&&
addPic1: function (e) {
var imgbox = this.data.imgbox;
console.log(imgbox)
var that = this;
var n = 5;
if (5 > imgbox.length > 0) {
n = 5 - imgbox.length;
} else if (imgbox.length == 5) {
n = 1;
}
wx.chooseImage({
count: n, // 默认9，设置图片张数
sizeType: ['original', 'compressed'], // 可以指定是原图还是压缩图，默认二者都有
sourceType: ['album', 'camera'], // 可以指定来源是相册还是相机，默认二者都有
success: function (res) {
// console.log(res.tempFilePaths)
// 返回选定照片的本地文件路径列表，tempFilePath可以作为img标签的src属性显示图片
var tempFilePaths = res.tempFilePaths
if (imgbox.length == 0) {
imgbox = tempFilePaths
} else if (5 > imgbox.length) {
imgbox = imgbox.concat(tempFilePaths);
}
that.setData({
imgbox: imgbox
});
}
})
},
//图片
imgbox: function (e) {
this.setData({
imgbox: e.detail.value
})
},
//发布按钮
fb: function (e) {
if (!this.data.imgbox.length) {
wx.showToast({
icon: 'none',
title: '图片类容为空'
});
} else {
//上传图片到云存储
wx.showLoading({
title: '上传中',
})
let promiseArr = [];
for (let i = 0; i < this.data.imgbox.length; i++) {
promiseArr.push(new Promise((reslove, reject) => {
let item = this.data.imgbox[i];
let suffix = /\.\w+$/.exec(item)[0];//正则表达式返回文件的扩展名
wx.cloud.uploadFile({
cloudPath: new Date().getTime() + suffix, // 上传至云端的路径
filePath: item, // 小程序临时文件路径
success: res => {
this.setData({
fileIDs: this.data.fileIDs.concat(res.fileID)
});
console.log(res.fileID)//输出上传后图片的返回地址
reslove();
wx.hideLoading();
wx.showToast({
title: "上传成功",
})
},
fail: res=>{
wx.hideLoading();
wx.showToast({
title: "上传失败",
})
}
})
}));
}
Promise.all(promiseArr).then(res => {
//等数组都做完后做then方法
console.log("图片上传完成后再执行")
this.setData({
imgbox:[]
})
})
}
},
})
wxml：
<!--miniprogram/pages/fb/fb.wxml-->
<view class='pages'>
<view class='top'><text class='top_name'>商品图片：</text></view>
<!-- 图片 -->
<view class="images_box">
<block wx:key="imgbox" wx:for="{{imgbox}}">
<view class='img-box'>
<image class='img' src='{{item}}'></image>
<view class='img-delect' data-deindex='{{index}}' bindtap='imgDelete1'>
<image class='img' src='../../images/delect.png'></image>
</view>
</view>
</block>
<view class='img-box' bindtap='addPic1' wx:if="{{imgbox.length<9}}">
<image class='img' src='../../images/add_image.png'></image>
</view>
</view>
<button bindtap='fb'>上传图片</button>
</view>
