sange-bridge/core/util.js

import $site from "./site";
const ksort = obj => {
    let keys = Object.keys(obj).sort()
        , sortedObj = {};

    for (let i in keys) {
        sortedObj[keys[i]] = obj[keys[i]];
    }

    return sortedObj;
}
const checkNullObj = (obj) => {
    if (Object.keys(obj).length === 0) {
        return false
    }
    return true
}


const checkArrayNotNullNumber = (array,notNullNumber = 2) => {
    let num = 0
    for (const item in array) {
       if(array[item]) num++;
    }
    return num >= notNullNumber;
}

// 正切
const tan = angle => {
    return Math.tan(angle * Math.PI / 180)
}
// 余切
const cot = angle => {
    return 1 / tan(angle)
}
// 余弦
const cos = angle => {
    return Math.cos(angle * Math.PI / 180)
}
// 余割
const csc = angle => {
    return 1 / sin(angle)
}
// 正弦
const sin = angle => {
    return Math.sin(angle * Math.PI / 180)
}
// 正割
const sec = angle => {
    return 1 / cos(angle)
}

// 反正弦
const asin = value => {
    return Math.asin(value) * 180 / Math.PI;
}
// 反余弦
const acos = value => {
    return Math.acos(value) * 180 / Math.PI;
}
// 反正切
const atan = value => {
    return Math.atan(value) * 180 / Math.PI;
}

const checkTriangle = (a,b,c) => {
    a = parseInt(a);
    b= parseInt(b);
    c = parseInt(c);
    return a + b > c && a + c > b && b + c > a;
}

const round = (number,percent) => {
    if(!number) return  number
    number = parseFloat(number).toFixed(percent)
    number = Math.abs(number);
    let flag = number < 0 ? '-' : '';
    let arr = number.toString().split(".");
    if(arr.length > 1 && arr[1].length === 2) return number;
    if(arr.length === 1) arr.push('00')
    return flag+arr.join(".");
}

const objectToUrlParams = function (obj, urlencode) {
    let str = "";
    for (let key in obj) {
        str += "&" + key + "=" + (urlencode ? encodeURIComponent(obj[key]) : obj[key]);
    }
    return str.substr(1);
}

const shareMessage = user => {
    let args = {
        path: '/pages/index/index',
        params: {
            user_id : user.id,
        },
        title: '桥架计算和公示表永久使用',
        desc: '做桥架不求人，让你秒变大师！',
        imageUrl: $site.root+"assets/images/formula/formula-cover.png"
    };
    return args ;
}

/**
 * WXSceneSession    分享到聊天界面
 * WXSenceTimeline    分享到朋友圈
 * WXSceneFavorite  分享到微信收藏
 * @param user
 * @param scene
 */
const share = (user,scene = "WXSenceTimeline") => {
    uni.share({
        provider: "weixin",
        scene: scene,
        type: 5, // 小程序
        miniProgram: {
            id: 'gh_cdaf361f6966',
            path:'/pages/index/index?user_id='+user.id,
        },
        title: '桥架计算和公示表永久使用',
        summary: "做桥架不求人，让你秒变大师！",
        imageUrl: $site.root+"assets/images/formula/formula-cover.png",
        success: function (res) {
            console.log("success:" + JSON.stringify(res));
        },
        fail: function (err) {
            console.error("fail:" + JSON.stringify(err));
        }
    });
}

const login = () => {
    let page = getCurrentPages()[0]
    let route = page.route;
    let arr = [];
    for (const key in page.options) {
        arr.push(`${key}=${page.options[key]}`)
    }
    uni.reLaunch({
        url: `/pages/login/login?redirect=${route}&${arr.join("&")}`,
    });
}

const saveImage = url => {
    return new Promise((resolve, reject) => {
        uni.downloadFile({
            url: url,
            success: (res) => {
                if (res.statusCode === 200) {
                    console.log('下载成功');
                    uni.authorize({
                        scope: 'scope.writePhotosAlbum',
                        success() {
                            uni.saveImageToPhotosAlbum({
                                filePath: res.tempFilePath,
                                success: function(red) {
                                    uni.$u.toast(`保存成功`)
                                    //uni.$u.toast(`保存路径:${red.savedFilePath}`)
                                    resolve()
                                },
                                fail: function() {
                                    uni.$u.toast(`保存失败`)
                                    reject()
                                }
                            });
                        },
                        fail: err => {
                            uni.$u.toast(`授权失败`+JSON.stringify(err))
                            reject()
                        }
                    })
                }else{
                    uni.$u.toast(`保存失败`)
                    reject()
                }
            },
            fail: err => {
                uni.$u.toast(`保存失败`+JSON.stringify(err))
                reject()
            }
        });
    })
}

const copyText = text => {
    uni.setClipboardData({
        data: text,
        success: function () {
            uni.hideLoading();
            uni.$u.toast(`复制成功`)
        }
    });
}


export {
    ksort,
    checkNullObj,
    checkArrayNotNullNumber,
    tan,
    cot,
    cos,
    csc,
    sin,
    sec,
    asin,
    acos,
    atan,
    checkTriangle,
    round,
    objectToUrlParams,
    shareMessage,
    share,
    login,
    saveImage,
    copyText
}