123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155 |
- // pages/download/index.js
- Page({
- /**
- * 页面的初始数据
- */
- data: {
- text: '下载文件'
- },
- backUrl() {
- wx.navigateBack({
- delta: 1
- })
- },
- // 预览文件
- lookFileFu(savedFilePath, that) {
- wx.openDocument({ //微信打开文件
- filePath: savedFilePath,
- showMenu: true,
- success: function (res) {
- that.setData({
- text: '预览成功,点击返回继续',
- });
- },
- fail: function (err) {
- wx.showToast({
- title: '预览失败',
- icon: 'error',
- duration: 1500
- })
- that.setData({
- text: '预览失败'
- });
- }
- });
- },
- /**
- * 生命周期函数--监听页面加载
- */
- onLoad(o) {
- if (o.url) {
- wx.showLoading({
- title: '下载中', //提示文字
- mask: true, //是否显示透明蒙层,防止触摸穿透,默认:false
- })
- let that = this;
- console.log('--------url路径', decodeURI(o.url));
- const url = decodeURI(o.url)
- wx.downloadFile({
- url,
- success(res) {
- wx.getFileSystemManager().saveFile({ //微信保存文件,这个存储有点复杂
- // 临时存储路径,先有临时存储路径方可使用wx官方的存储本地路径( wx.env.USER_DATA_PATH )
- tempFilePath: res.tempFilePath,
- //定义本地的存储路径及名称
- filePath: wx.env.USER_DATA_PATH + '/' + Date.now() + '.pdf',
- success(res) {
- // console.log('pppppp', res);
- const savedFilePath = res.savedFilePath;
- // console.log('xxxx', savedFilePath);
- wx.hideLoading()
- wx.showModal({
- title: '即将预览文件',
- content: '点击右上角即可保存(ios手机需要发送给文件助手后保存)',
- success: function (res) {
- if (res.confirm) {
- that.lookFileFu(savedFilePath,that)
- } else {
- that.lookFileFu(savedFilePath,that)
- }
- }
- });
- },
- fail(err) {
- wx.showToast({
- title: '预览失败',
- icon: 'error',
- duration: 1500
- })
- that.setData({
- text: '预览失败'
- });
- }
- })
- },
- fail(err) {
- wx.hideLoading()
- wx.showToast({
- title: '下载失败',
- icon: 'error',
- duration: 1500
- })
- console.log(err)
- that.setData({
- text: '下载失败'
- });
- }
- })
- }
- },
- /**
- * 生命周期函数--监听页面初次渲染完成
- */
- onReady() {
- },
- /**
- * 生命周期函数--监听页面显示
- */
- onShow() {
- },
- /**
- * 生命周期函数--监听页面隐藏
- */
- onHide() {
- },
- /**
- * 生命周期函数--监听页面卸载
- */
- onUnload() {
- },
- /**
- * 页面相关事件处理函数--监听用户下拉动作
- */
- onPullDownRefresh() {
- },
- /**
- * 页面上拉触底事件的处理函数
- */
- onReachBottom() {
- },
- /**
- * 用户点击右上角分享
- */
- onShareAppMessage() {
- }
- })
|