Traffic-widget/miniprogram/components/camera-face/utils.ts

// 封装获取授权结果, scopeName权限名称
export const getAuthorize = (scopeName:any) => {
  return new Promise((resove) => {
    wx.getSetting({
      success: res => {
        res.authSetting[scopeName] ? resove(true) : resove(false);
      },
      fail: () => resove(false)
    })
  })
};

// 封装设置权限, scopeName权限名称
export const setAuthorize = (scopeName:string) => {
  return new Promise((resove) => {
    wx.authorize({
      scope: scopeName,
      success: () => resove(true),
      fail: () => resove(false)
    })
  })
};

// 节流函数
export const throttle = (fn:any, delay = 200) => {
  let timer:any = undefined;
  const _this:any = this;
  return function (args:any[]) {
    if (timer) return;
    timer = setTimeout(() => {
      fn.call(_this, args);
      clearTimeout(timer);
      timer = null;
    }, delay);
  };
};

// 比较版本号
export const compareVersion = (v1:string, v2:string) => {
  const listV1 = v1.split('.')
  const listV2 = v2.split('.')
  const len = Math.max(v1.length, v2.length)

  while (listV1.length < len) {
    listV1.push('0')
  }
  while (listV2.length < len) {
    listV2.push('0')
  }

  for (let i = 0; i < len; i++) {
    const num1 = parseInt(listV1[i])
    const num2 = parseInt(listV2[i])

    if (num1 > num2) return 1
    else if (num1 < num2) return -1
  }
  return 0
}

// 检测版本号后的处理,version: 比较的版本号, callback: 版本号低于的处理回调 
export const checkVersion = (version:string, callback:any) => {
  const v = wx.getSystemInfoSync().SDKVersion
  console.log('比较版本号系统：', v, '比较：', version);
  if (compareVersion(v, version) >= 0) {
    return true;
  } else {
    // 如果希望用户在最新版本的客户端上体验您的小程序，可以这样子提示
    wx.showModal({
      title: '提示',
      content: '当前微信版本过低，无法使用该功能，请升级到最新微信版本后重试。',
      showCancel: false,
      success: () => {
        callback()
      }
    })
    return false;
  }
}