# KakaoSdk class Null safety

Kakao SDK의 싱글턴 Context

## Properties

hashCode → int
  The hash code for this object. [...]
  read-only, inherited
runtimeType → Type
  A representation of the runtime type of the object.
  read-only, inherited

## Methods

noSuchMethod(Invocation invocation) → dynamic
  Invoked when a non-existent method or property is accessed. [...]
  inherited
toString() → String
  A string representation of this object. [...]
  inherited

## Operators

operator ==(Object other) → bool
  The equality operator. [...]
  inherited

## Static Properties

appKey → String
  read-only
appVer → Future<String>
  read-only
hosts ↔ ServerHosts
  read / write
kaHeader → Future<String>
  read-only
logging ↔ bool
  read / write
origin → Future<String>
  read-only
packageInfo → Future<PackageInfo>
  read-only
packageName → Future<String>
  read-only
platformAppKey → String
  read-only
sdkVersion ↔ String
  read / write

## Static Methods

init({String? nativeAppKey, String? javaScriptAppKey, ServerHosts? serviceHosts, bool? loggingEnabled}) → void
  `내 애플리케이션`에서 확인한 앱 키로 Flutter SDK 초기화, 서비스 환경별 앱 키 사용 웹: javaScriptAppKey에 JavaScript 키 전달 앱: nativeAppKey에 네이티브 앱 키 전달