android - CookieManager is abstract, cannot be instantiated. Why?

Question

OkHttpClient client = new OkHttpClient();
CookieManager cookieManager = new CookieManager();
cookieManager.setCookiePolicy(CookiePolicy.ACCEPT_ALL);

throws "CookieManager is abstract, cannot be instantiated"

I'm importing android.webkit.CookieManager and everything seems fine from the documentation side.

Answer 1

因为 cookiemanager 管理所有的 cookie，所以您不能创建它的实例。这意味着一个实例获得的 cookie 与另一个实例不同。因此 cookiemanager 是一个所谓的单例。使用你可以在这里CookieManager cookieManager = CookieManager.getInstance() 查找