摘要:
For every object that can have a delegate, there is a corresponding protocol that declares themessages that the object can send its delegate. The dele... 阅读全文
2014年12月8日 #
摘要:
When an iOS application is launched, it starts a run loop. The run loop’s job is to listen for events,such as a touch. When an event occurs, the run l... 阅读全文