UNI-APP 一些常用方法

module.exports = {
  // 判断是 IOS 还是安卓
  getPhoneType() {
    var type = 'other'
    switch (uni.getSystemInfoSync().platform) {
      case 'android':
        type = 'android'
        break;
      case 'ios':
        type = 'ios'
        break;
      default:
        break;
    }
    return type
  },

  // 处理手机号码中间四位
  phoneNumHide(phone) {
    var reg = /^(\d{3})\d{4}(\d{4})$/;
    phone = phone.replace(reg, "$1****$2");
    return phone
  },

  // 处理文件路径
  getLocalFilePath(path) {
    if (path.indexOf('_www') === 0 || path.indexOf('_doc') === 0 || path.indexOf('_documents') === 0 || path.indexOf('_downloads') === 0) {
      return path
    }
    if (path.indexOf('file://') === 0) {
      return path
    }
    if (path.indexOf('/storage/emulated/0/') === 0) {
      return path
    }
    if (path.indexOf('/') === 0) {
      var localFilePath = plus.io.convertAbsoluteFileSystem(path)
      if (localFilePath !== path) {
        return localFilePath
      } else {
        path = path.substr(1)
      }
    }
    return '_www/' + path
  },

  // 图片转 base64ToPath
  pathToBase64(path) {
    let that = this
    return new Promise((resolve, reject) => {
      if (typeof window === 'object' && 'document' in window) {
        if (typeof FileReader === 'function') {
          var xhr = new XMLHttpRequest()
          xhr.open('GET', path, true)
          xhr.responseType = 'blob'
          xhr.onload = () => {
            if (this.status === 200) {
              let fileReader = new FileReader()
              fileReader.onload = (e) => {
                resolve(e.target.result)
              }
              fileReader.onerror = reject
              fileReader.readAsDataURL(this.response)
            }
          }
          xhr.onerror = reject
          xhr.send()
          return
        }
        var canvas = document.createElement('canvas')
        var c2x = canvas.getContext('2d')
        var img = new Image
        img.onload = () => {
          canvas.width = img.width
          canvas.height = img.height
          c2x.drawImage(img, 0, 0)
          resolve(canvas.toDataURL())
          canvas.height = canvas.width = 0
        }
        img.onerror = reject
        img.src = path
        return
      }
      if (typeof plus === 'object') {
        plus.io.resolveLocalFileSystemURL(that.getLocalFilePath(path), (entry) => {
          entry.file((file) => {
            var fileReader = new plus.io.FileReader()
            fileReader.onload = (data) => {
              resolve(data.target.result)
            }
            fileReader.onerror = (error) => {
              reject(error)
            }
            fileReader.readAsDataURL(file)
          }, (error) => {
            reject(error)
          })
        }, (error) => {
          reject(error)
        })
        return
      }
      if (typeof wx === 'object' && wx.canIUse('getFileSystemManager')) {
        wx.getFileSystemManager().readFile({
          filePath: path,
          encoding: 'base64',
          success(res) {
            resolve('data:image/png;base64,' + res.data)
          },
          fail(error) {
            reject(error)
          }
        })
        return
      }
      reject(new Error('not support'))
    })
  },

  // base 64 转文件路径
  base64ToPath(base64) {
    return new Promise((resolve, reject) => {
      if (typeof window === 'object' && 'document' in window) {
        base64 = base64.split(',')
        var type = base64[0].match(/:(.*?);/)[1]
        var str = atob(base64[1])
        var n = str.length
        var array = new Uint8Array(n)
        while (n--) {
          array[n] = str.charCodeAt(n)
        }
        return resolve((window.URL || window.webkitURL).createObjectURL(new Blob([array], {
          type: type
        })))
      }
      var extName = base64.match(/data\:\S+\/(\S+);/)
      if (extName) {
        extName = extName[1]
      } else {
        reject(new Error('base64 error'))
      }
      var fileName = Date.now() + '.' + extName
      if (typeof plus === 'object') {
        var bitmap = new plus.nativeObj.Bitmap('bitmap' + Date.now())
        bitmap.loadBase64Data(base64, () => {
          var filePath = '_doc/uniapp_temp/' + fileName
          bitmap.save(filePath, {}, () => {
            bitmap.clear()
            resolve(filePath)
          }, (error) => {
            bitmap.clear()
            reject(error)
          })
        }, (error) => {
          bitmap.clear()
          reject(error)
        })
        return
      }
      if (typeof wx === 'object' && wx.canIUse('getFileSystemManager')) {
        var filePath = wx.env.USER_DATA_PATH + '/' + fileName
        wx.getFileSystemManager().writeFile({
          filePath: filePath,
          data: base64.replace(/^data:\S+\/\S+;base64,/, ''),
          encoding: 'base64',
          success() {
            resolve(filePath)
          },
          fail(error) {
            reject(error)
          }
        })
        return
      }
      reject(new Error('not support'))
    })
  },

  // 打开第三方地图应用
  toMapAPP(latitude, longitude, name) {
    let url = "";
    if (plus.os.name == "Android") { // 判断是安卓端
      plus.nativeUI.actionSheet({ // 选择菜单
        title: "选择地图应用",
        cancel: "取消",
        buttons: [{
          title: "腾讯地图"
        }, {
          title: "百度地图"
        }, {
          title: "高德地图"
        }]
      }, (e) => {
        switch (e.index) {
          // 下面是拼接 url,不同系统以及不同地图都有不同的拼接字段
          case 1:
            // 注意 referer=xxx 的 xxx 替换成你在腾讯地图开发平台申请的 key
            url = `qqmap://map/geocoder?coord=${latitude},${longitude}&referer=7ZDBZ-POOWJ-3PRFG-KCBCD-WAH5K-AVFVL`;
            break;
          case 2:
            url =
              `baidumap://map/marker?location=${latitude},${longitude}&title=${name}&coord_type=gcj02&src=andr.baidu.openAPIdemo`;
            break;
          case 3:
            url = `androidamap://viewMap?sourceApplication=appname&poiname=${name}&lat=${latitude}&lon=${longitude}&dev=0`;
            break;
          default:
            break;
        }
        if (url != "") {
          url = encodeURI(url);
          // plus.runtime.openURL(url, (e) => {}) // 调起手机APP应用
          plus.runtime.openURL(url, (e) => {
            plus.nativeUI.alert("本机未安装指定的地图应用");
          });
        }
      })
    } else {
      // iOS上获取本机是否安装了百度高德地图，需要在 manifest 里配置
      // 在 manifest.json 文件 app-plus -> distribute -> apple -> urlschemewhitelist 点下添加
      // （如urlschemewhitelist:["iosamap","baidumap","qqmap"]）  
      plus.nativeUI.actionSheet({
        title: "选择地图应用",
        cancel: "取消",
        buttons: [{
          title: "腾讯地图"
        }, {
          title: "百度地图"
        }, {
          title: "高德地图"
        }]
      }, (e) => {
        switch (e.index) {
          case 1:
            url = `qqmap://map/geocoder?coord=${latitude},${longitude}&referer=xxx`;
            break;
          case 2:
            url =
              `baidumap://map/marker?location=${latitude},${longitude}&title=${name}&content=${name}&src=ios.baidu.openAPIdemo&coord_type=gcj02`;
            break;
          case 3:
            url =
              `iosamap://viewMap?sourceApplication=applicationName&poiname=${name}&lat=${latitude}&lon=${longitude}&dev=0`;
            break;
          default:
            break;
        }
        if (url != "") {
          url = encodeURI(url);
          plus.runtime.openURL(url, (e) => {
            plus.nativeUI.alert("本机未安装指定的地图应用");
          });
        }
      })
    }
  },

  // 获取页面路径
  getCurPage() {
    var pages = getCurrentPages();
    var page = pages[pages.length - 1]
    return 'https://czjxmx.com/h5/#' + page.route
  },

  // 短震动
  vibrate() {
    let UIImpactFeedbackGenerator = plus.ios.importClass('UIImpactFeedbackGenerator');
    let impact = new UIImpactFeedbackGenerator();
    impact.prepare();
    impact.init(1);
    impact.impactOccurred();
  },

  // 获取用户cid
  getUserCid() {
    let clientInfo = plus.push.getClientInfo()
    return clientInfo.clientid // 设备CID
  },

  // 数组内是否包含
  inArray(search, array) {
    for (var i in array) {
      if (array[i] == search) {
        return true;
      }
    }
    return false;
  },

  // 公众号登录鉴权--静默授权
  gzhLoginBase(url, type) {
    // type  :  snsapi_base 静默授权  snsapi_userinfo 获取用户信息
    let local = encodeURIComponent(url) // 获取当前页面地址
    let Appid = '你的APPID'
    window.location.href =
      "https://open.weixin.qq.com/connect/oauth2/authorize?appid=" +
      Appid + // 你APP申请的APPId，每个app都有个ID是识别你app的方式
      "&redirect_uri=" +
      local +
      "&response_type=code&scope=" + type + "&state=1#wechat_redirect";
  },

  // 判断是否是微信浏览器
  is_wx() {
    let en = window.navigator.userAgent.toLowerCase()
    // 匹配en中是否含有 MicroMessenger 字符串
    if (en.match(/MicroMessenger/i) == 'micromessenger') {
      return true
    }
    if (en.match(/MicroMessenger/i) != 'micromessenger') {
      return false
    }
  },

  // 随机整数
  random(lower, upper) {
    return Math.floor(Math.random() * (upper - lower + 1)) + lower;
  },

  // 监听网络
  onNetWork() {
    let func = (res) => {
      if (res.networkType === 'none') {
        uni.showToast({
          title: '网络异常,请先连接',
          icon: 'none',
          duration: 3000
        });
      }
    }
    uni.getNetworkType({
      success: func
    });
    uni.onNetworkStatusChange(func);
  },

  // 数组置顶
  toFirst(arr, index) {
    if (index != 0) {
      arr.unshift(arr.splice(index, 1)[0]);
    }
    return arr;
  },

  // 判断地址是否包含前缀
  httpLink(url) {
    const Http = url.substr(0, 7).toLowerCase()
    const Https = url.substr(0, 8).toLowerCase()
    if (Http === "http://" || Https === "https://") {
      return true
    }
    return false
  },

  // 获取当前页面路由---包含参数
  getNowPagePath() {
    let routes = getCurrentPages(); // 获取当前打开过的页面路由数组
    if (routes.length == 0) {
      return '/index/index'
    }
    let curRoute = routes[routes.length - 1].route // 获取当前页面路由
    let curParam = routes[routes.length - 1].options; // 获取路由参数
    // 拼接参数
    let param = ''
    for (let key in curParam) {
      if (key != 'code') {
        if (param == '') {
          param += '?' + key + '=' + curParam[key]
        } else {
          param += '&' + key + '=' + curParam[key]
        }
      }
    }

    let page_url = '/' + curRoute + param
    return page_url
  },

  // 获取字符长度   中文2个字符，英文一个字符
  strlen(str) {
    var len = 0;
    for (var i = 0; i < str.length; i++) {
      var c = str.charCodeAt(i);
      // 单字节加1   
      if ((c >= 0x0001 && c <= 0x007e) || (0xff60 <= c && c <= 0xff9f)) {
        len++
      } else {
        len += 2
      }
    }
    return len
  },

  // 字符空格过滤
  trim(str) {
    return str.replace(/^(\s|\u00A0)+/, '').replace(/(\s|\u00A0)+$/, '');
  },

  // 数字转中文
  toChinesNum(num) {
    let changeNum = ['零', '一', '二', '三', '四', '五', '六', '七', '八', '九'];
    let unit = ["", "十", "百", "千", "万"];
    num = parseInt(num);
    let getWan = (temp) => {
      let strArr = temp.toString().split("").reverse();
      let newNum = "";
      for (var i = 0; i < strArr.length; i++) {
        newNum = (i == 0 && strArr[i] == 0 ? "" : (i > 0 && strArr[i] == 0 && strArr[i - 1] == 0 ? "" : changeNum[strArr[i]] + (strArr[i] == 0 ? unit[0] : unit[i]))) + newNum;
      }
      return newNum;
    }
    let overWan = Math.floor(num / 10000);
    let noWan = num % 10000;
    if (noWan.toString().length < 4) {
      noWan = "0" + noWan;
    }
    return overWan ? getWan(overWan) + "万" + getWan(noWan) : getWan(num);
  }
}