微信小程序实现图片轮播及文件上传
刚刚接触微信小程序，看着网上的资源写了个小例子，本地图片轮播以及图片上传。
图片轮播：
index.js
<span>var app = getApp() Page({ data:{ mode: 'aspectFit', // src:'../images/timg1.jpg', imgUrls:[ '../images/1.jpg', '../images/2.jpg', '../images/3.jpg', '../images/4.jpg' ], indicatorDots: true, //是否出现焦点 autoplay: true, //是否自动播放 interval: 2000, //自动播放时间间隔 duration: 1000, //滑动动画时间 userInfo: {} }, onLoad:function(){ console.log('onLoad Test'); } })</span>
注：imgUrls中为本地图片数组。
index.wxml:
<swiper indicator-dots = "{{indicatorDots}}" autoplay="{{autoplay}}" interval="{{interval}}" duration="{{duration}}"> <block wx:for="{{imgUrls}}"> <swiper-item> <image src="https://www.jb51.net/{{item}}" mode="{{mode}}" /> </swiper-item> </block> </swiper>
index.json:
{ "navigationBarTitleText": "相册" }
index.wxss:
.slide-image{ width:100%; height:100%; } .swiper_i{ text-align: center; width:100%; }
好了，这是图片轮播的几个文件。会在app.json中配置。
接下来是图片上传的。因为没有服务器，暂时不能上传，但是可以从本地相册或拍照获取照片。
upload.js:
var app = getApp() Page({ data:{ // text:"这是一个页面" source: '', tt:false }, /** * 选择相册或者相机 配合上传图片接口用 */ onLoad: function() { var that = this; wx.chooseImage({ count: 1, //original原图，compressed压缩图 sizeType: ['original'], //album来源相册 camera相机 sourceType: ['album', 'camera'], //成功时会回调 success: function(res) { //重绘视图 that.setData({ source: res.tempFilePaths, tt:true }) /* var tempFilePaths = res.tempFilePaths wx.uploadFile({ url: 'https://', //仅为示例，非真实的接口地址 filePath: tempFilePaths[0], name: 'file', formData:{ 'user': 'test' }, success: function(res){ var data = res.data //do something } })*/ } }) }, /*onHide:function(){ this.setData({ source:'' }) }*/ })
upload.json:
{ "navigationBarTitleText": "上传图片" }
upload.wxml:
<view> <image src="https://www.jb51.net/{{source}}" mode="aspectFit"/> <block wx:if="{{tt}}"> <button type="primary" bindtap="listenerButtonChooseImage">确认上传</button> </block> </view>
upload.wxss:
/* pages/upload/upload.wxss */ .Container{ text-align:center; width:100%; } .image-i{ width:100%; height:100%; }
app.js为空。
app.json:
{ "pages": [ "pages/index/index", "pages/upload/upload" ], "window": { "navigationBarTextStyle": "black", "navigationBarTitleText": "演示2", "navigationBarBackgroundColor": "#fbf9fe", "backgroundColor": "#fbf9fe" }, "networkTimeout": { "request": 10000, "connectSocket": 10000, "uploadFile": 10000, "downloadFile": 10000 }, "tabBar": { "list": [{ "pagePath": "pages/index/index", "text": "显示图片", "iconPath": "pages/images/icon_API.png", "selectedIconPath": "pages/images/icon_API_HL.png" },{ "pagePath": "pages/upload/upload", "text": "上传", "iconPath": "pages/images/icon_API.png", "selectedIconPath": "pages/images/icon_API_HL.png" }] }, "debug": true }