[第5集] 视图控制器生命周期

[yanx730]

UITextView

• Scrollable, editable/selectable view of a mutable attributed string.

View Controller Lifecycle

• Finding out what’s happening as a VC is created, hooked up to the View, appears/disappears, etc.

NSNotification

• The “radio station” communication mechanism of MVC. just talk about “tuning in.”