UIView 和 UIViewController 有什么区别？
我需要详细解释以下内容：
我们使用 UIViewController 做什么？ 它有什么用呢？
我有一个如下所示的类：
class one
{
UINavigationController *nav = ...;
two *secondObject = ...;
// By use of it, I have push the new view class two//ok
}
class two
{
...
}
如何在 one 类中使用 secondObject？
什么是从窗口开始的类层次结构？
I need a detailed explanation on the following:
What do we use a UIViewController for?
What is the use of it?
I have a class that looks like the following:
class one
{
UINavigationController *nav = ...;
two *secondObject = ...;
// By use of it, I have push the new view class two//ok
}
class two
{
...
}
How can I use secondObject in the class one?
What is the class hierarchical start from the window?
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UIViewController是MVC设计模式中的控制器部分。模型<-------->控制器<-------->View控制器的任务是处理不同视图之间的导航、按键和屏幕触摸等。
The
UIViewControlleris the controller part in theMVCdesign pattern.Model<------->Controller<------->ViewThe controller's task is to handle navigation between different views, key presses, and screen touches etc.
视图只是一个对象，有点像一张纸，上面放置了其他对象。
视图控制器是一个控制视图的对象，可以在导航堆栈中向前和向后推送和弹出视图。
"iOS 视图控制器编程指南"
A view is merely an object, kind of like a piece of paper, that other objects are put onto.
A View Controller is an object that controls views, pushing and popping them forwards and backwards in a navigation stack.
"View Controllers Programming Guide for iOS"