vue uni-app 公共组件封装，防止每个页面重复导入

1.公共插件

实现目标，将公共组件或者网络请求直接在this中调用，不需要再页面引用

#例如网络请求
var _this = this;
				this.api.userInfo({
					token: ''
				}
				
#通用工具
_this.utils.showBoxFunNot("是否退出登陆", function() {
					console.log("确定")
					_this.api.logOut({}, function(data) {
						_this.utils.setCacheValue('token', '')
						uni.redirectTo({
							url: '/pages/LogIn/LogIn'
						});
					})
				})

公共插件utils.js 或者可以将网络请求api.js 封装成对象

var utils = {
	function_chk: function(f) {
		try {
			var fn = eval(f);
			if (typeof(fn) === 'function') {
				return true;
			} else {
				return false;
			}
		} catch (e) {

		}
		return false;
	},
	showBox: function(msg) {
		uni.showModal({
			title: "错误提示",
			content: "" + msg,
			showCancel: false,
			confirmText: "确定"
		})
	},
	showBoxFun: function(msg, fun) {
		uni.showModal({
			title: "提示",
			content: "" + msg,
			showCancel: false,
			confirmText: "确定",
			success: (res) => {
				fun(res)
			}
		})

	},
	showBoxFunNot: function(msg, fun, cancel) {
		var _this = this
		uni.showModal({
			title: "提示",
			content: "" + msg,
			confirmText: "确定",
			cancelText: "取消",
			success: (res) => {
				if (res.confirm) { //取消
					if (_this.function_chk(fun)) {
						fun(res)
					}
				} else if (res.cancel) { //确定
					if (_this.function_chk(cancel)) {
						cancel(res)
					}
				}
			},
			can: (err) => {

			}
		})

	},
	notNull: function(obj, msg = '参数不能为空') {
		var keys = Object.keys(obj);
		console.log(keys)
		for (var i in keys) {
			var keyName = keys[i]
			console.log(keys[i])
			var value = obj[keyName]
			if (value == '') {
				console.log("为空的参数：",keyName)
				this.showBox(msg)
				return true;
			}
			console.log(value)
		}
		return false;
	},
	getCacheValue: function(key) {
		var value = '';
		try {
			value = uni.getStorageSync(key);
		} catch (e) {

		}
		return value;
	},
	setCacheValue: function(key, value) {
		try {
			value = uni.setStorageSync(key, value);
		} catch (e) {

		}
	}
}


export default utils

2.注册到vue 实例中

main.js 文件中将工具注册进入

import utils from 'common/utils.js';
import api from 'common/api.js';

Vue.config.productionTip = false
Vue.prototype.utils = utils
Vue.prototype.api = api