harmony-utils之ObjectUtil，对象工具类

harmony-utils 简介与说明

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[harmony-utils] 一款功能丰富且极易上手的HarmonyOS工具库，借助众多实用工具类，致力于助力开发者迅速构建鸿蒙应用。其封装的工具涵盖了APP、设备、屏幕、授权、通知、线程间通信、弹框、吐司、生物认证、用户首选项、拍照、相册、扫码、文件、日志、异常捕获、字符、字符串、数字、集合、日期、随机、base64、加密、解密、JSON等一系列的功能和作，能够满足各种不同的开发需求。
[picker_utils] 是harmony-utils拆分出来的一个子库，包含 PickerUtil、PhotoHelper、ScanUtil。

下载安装
ohpm i @pura/harmony-utils
ohpm i @pura/picker_utils

//全局初始化方法，在UIAbility的onCreate方法中初始化 AppUtil.init()
 onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void {
   AppUtil.init(this.context);
 }

API方法与使用

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getHash 获取对象的Hash值

let user: User = new User();
let hash1 = ObjectUtil.getHash(user);

getClassName 获取对象的Class名称

let user: User = new User();
let name1 = ObjectUtil.getClassName(user);

getMethodsNames 获取对象的所有方法名

let user: User = new User();
let methodsNames1 = ObjectUtil.getMethodsNames(this.user);

isString 判断是否是String

let user: User = new User();
let obj: String = new String("abcd@1234");
let bl1 = ObjectUtil.isString(user);
let bl2 = ObjectUtil.isString(obj);

isNull 判断对象是否为空

let user: User = new User();
let bl1 = ObjectUtil.isString(user)

isEmpty 判断属性内容是否为空

let user: User = new User();
let obj: String = new String();
let bl1 = ObjectUtil.isEmpty(user);
let bl2 = ObjectUtil.isEmpty(obj);

shallowCopy 浅拷贝

let user: User = new User();
let user1 = ObjectUtil.shallowCopy(user);

deepCopy 深度拷贝对象

let user: User = new User();
let user2: User = ObjectUtil.deepCopy(user);

assign 合并两个或多个对象

let user: User = new User();
let obj1: Record< string, Object > = { "xx_age": 20, "xx_name": "张呵呵" };
let obj2: Record< string, Object > = { "my_age": 20, "my_name": "张叁三" };
let user3 = ObjectUtil.assign(obj1, obj2, user);

objToClass obj转class，解决obj as class后丢失方法的问题

let user: User = new User();
let user4 = ObjectUtil.objToClass(User, user);

deleteRecord 删除Record中的元素

let record: Record< string, Object > = { "name": "张若楠", "age": 18, "work": "演员", "addr": "上海市" };
let recordStr = JSON.stringify(record);
ObjectUtil.deleteRecord(record,"work");

getValue 通过key获取对象值

let user: User = new User();
let name = ObjectUtil.getValue< string >(user, "name");

setValue 给对象obj动态添加或者修改属性

let user: User = new User();
ObjectUtil.setValue(user, "name", "张若喃");
ObjectUtil.setValue(user, "work", "女演员啊");
ObjectUtil.setValue(user, "job", "女演员");

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审核编辑 黄宇