pinfen/utils/util.js

 export default {
 	/*
 	 * 合并数组
 	 */
 	SplitArray(list, sp) {
 		if (typeof list != 'object') return [];
 		if (sp === undefined) sp = [];
 		for (var i = 0; i < list.length; i++) {
 			sp.push(list[i]);
 		}
 		return sp;
 	},
 	trim(str) {
 		return String.prototype.trim.call(str);
 	},
 	$h: {
 		//除法函数，用来得到精确的除法结果
 		//说明：javascript的除法结果会有误差，在两个浮点数相除的时候会比较明显。这个函数返回较为精确的除法结果。
 		//调用：$h.Div(arg1,arg2)
 		//返回值：arg1除以arg2的精确结果
 		Div: function(arg1, arg2) {
 			arg1 = parseFloat(arg1);
 			arg2 = parseFloat(arg2);
 			var t1 = 0,
 				t2 = 0,
 				r1, r2;
 			try {
 				t1 = arg1.toString().split(".")[1].length;
 			} catch (e) {}
 			try {
 				t2 = arg2.toString().split(".")[1].length;
 			} catch (e) {}
 			r1 = Number(arg1.toString().replace(".", ""));
 			r2 = Number(arg2.toString().replace(".", ""));
 			return this.Mul(r1 / r2, Math.pow(10, t2 - t1));
 		},
 		//加法函数，用来得到精确的加法结果
 		//说明：javascript的加法结果会有误差，在两个浮点数相加的时候会比较明显。这个函数返回较为精确的加法结果。
 		//调用：$h.Add(arg1,arg2)
 		//返回值：arg1加上arg2的精确结果
 		Add: function(arg1, arg2) {
 			arg2 = parseFloat(arg2);
 			var r1, r2, m;
 			try {
 				r1 = arg1.toString().split(".")[1].length
 			} catch (e) {
 				r1 = 0
 			}
 			try {
 				r2 = arg2.toString().split(".")[1].length
 			} catch (e) {
 				r2 = 0
 			}
 			m = Math.pow(100, Math.max(r1, r2));
 			return (this.Mul(arg1, m) + this.Mul(arg2, m)) / m;
 		},
 		//减法函数，用来得到精确的减法结果
 		//说明：javascript的加法结果会有误差，在两个浮点数相加的时候会比较明显。这个函数返回较为精确的减法结果。
 		//调用：$h.Sub(arg1,arg2)
 		//返回值：arg1减去arg2的精确结果
 		Sub: function(arg1, arg2) {
 			arg1 = parseFloat(arg1);
 			arg2 = parseFloat(arg2);
 			var r1, r2, m, n;
 			try {
 				r1 = arg1.toString().split(".")[1].length
 			} catch (e) {
 				r1 = 0
 			}
 			try {
 				r2 = arg2.toString().split(".")[1].length
 			} catch (e) {
 				r2 = 0
 			}
 			m = Math.pow(10, Math.max(r1, r2));
 			//动态控制精度长度
 			n = (r1 >= r2) ? r1 : r2;
 			return ((this.Mul(arg1, m) - this.Mul(arg2, m)) / m).toFixed(n);
 		},
 		//乘法函数，用来得到精确的乘法结果
 		//说明：javascript的乘法结果会有误差，在两个浮点数相乘的时候会比较明显。这个函数返回较为精确的乘法结果。
 		//调用：$h.Mul(arg1,arg2)
 		//返回值：arg1乘以arg2的精确结果
 		Mul: function(arg1, arg2) {
 			arg1 = parseFloat(arg1);
 			arg2 = parseFloat(arg2);
 			var m = 0,
 				s1 = arg1.toString(),
 				s2 = arg2.toString();
 			try {
 				m += s1.split(".")[1].length
 			} catch (e) {}
 			try {
 				m += s2.split(".")[1].length
 			} catch (e) {}
 			return Number(s1.replace(".", "")) * Number(s2.replace(".", "")) / Math.pow(10, m);
 		},
 	},
 	// 获取地理位置;
 	$L: {
 		async getLocation() {
 			// #ifdef APP-PLUS
 			let status = await this.checkPermission();
 			if (status !== 1) {
 				return;
 			}
 			// #endif
 			// #ifdef MP-WEIXIN || MP-TOUTIAO || MP-QQ
 			let status = await this.getSetting();
 			if (status === 2) {
 				this.openSetting();
 				return;
 			}
 			// #endif

 			this.doGetLocation();
 		},
 		doGetLocation() {
 			uni.getLocation({
				type:'gcj02',
 				success: (res) => {
 					uni.removeStorageSync('CACHE_LONGITUDE');
 					uni.removeStorageSync('CACHE_LATITUDE');
 					uni.setStorageSync('CACHE_LONGITUDE', res.longitude);
 					uni.setStorageSync('CACHE_LATITUDE', res.latitude);
 				},
 				fail: (err) => {
 					// #ifdef MP-BAIDU
 					if (err.errCode === 202 || err.errCode === 10003) { // 202模拟器 10003真机 user deny
 						this.openSetting();
 					}
 					// #endif
 					// #ifndef MP-BAIDU
 					if (err.errMsg.indexOf("auth deny") >= 0) {
 						uni.showToast({
 							title: "访问位置被拒绝"
 						})
 					} else {
 						uni.showToast({
 							title: err.errMsg
 						})
 					}
 					// #endif
 				}
 			})
 		},
 		getSetting: function() {
 			return new Promise((resolve, reject) => {
 				uni.getSetting({
 					success: (res) => {
 						if (res.authSetting['scope.userLocation'] === undefined) {
 							resolve(0);
 							return;
 						}
 						if (res.authSetting['scope.userLocation']) {
 							resolve(1);
 						} else {
 							resolve(2);
 						}
 					}
 				});
 			});
 		},
 		openSetting: function() {
 			uni.openSetting({
 				success: (res) => {
 					if (res.authSetting && res.authSetting['scope.userLocation']) {
 						this.doGetLocation();
 					}
 				},
 				fail: (err) => {}
 			})
 		},
		// #ifdef APP-PLUS
 		async checkPermission() {
 			let status = permision.isIOS ? await permision.requestIOS('location') :
 				await permision.requestAndroid('android.permission.ACCESS_FINE_LOCATION');

 			if (status === null || status === 1) {
 				status = 1;
 			} else if (status === 2) {
 				uni.showModal({
 					content: "系统定位已关闭",
 					confirmText: "确定",
 					showCancel: false,
 					success: function(res) {}
 				})
 			} else if (status.code) {
 				uni.showModal({
 					content: status.message
 				})
 			} else {
 				uni.showModal({
 					content: "需要定位权限",
 					confirmText: "设置",
 					success: function(res) {
 						if (res.confirm) {
 							permision.gotoAppSetting();
 						}
 					}
 				})
 			}
 			return status;
 		},
		// #endif
 	}

 }