摘要：
Intent （定义） Avoid coupling the sender of a request to its receiver by giving more than one object a chance to handle the request. Chain the receiving 阅读全文
摘要：
Intent （定义） Provide a surrogate or placeholder for another object to control access to it.（为另一个对象提供代理或占位符，以控制对它的访问。） Also Known As （别名） Surrogate Moti 阅读全文