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UIWindow,UINavigationController与UIViewController之间的关系

2024-07-10 04:51:58   223人阅读

UIWindow,UINavigationController与UIViewController之间的关系

虽然每次你都用UINavigationController与UIWindow,但你不一定知道他们之间到底怎么运作的哦:)

AppDelegate.h的代码

RootViewController.m

////  RootViewController.m//  UIWindow////  Copyright (c) 2014年 Y.X. All rights reserved.//#import "RootViewController.h"#define VALUE  1@interface RootViewController ()@end@implementation RootViewController- (void)viewDidLoad{    [super viewDidLoad];    self.view.backgroundColor = [UIColor redColor];        UITapGestureRecognizer *tap =     [[UITapGestureRecognizer alloc] initWithTarget:self                                            action:@selector(tapEvent:)];        [self.view addGestureRecognizer:tap];}- (void)tapEvent:(UITapGestureRecognizer *)gesture{    static int flag = 1;    if (flag)    {        // 初始化3D变换,获取默认值        CATransform3D perspectiveTransform = CATransform3DIdentity;                // 缩放变换        perspectiveTransform = CATransform3DScale(perspectiveTransform, 0.75, 0.75, 0.75);                [UIView animateWithDuration:0.3 animations:^{            if (VALUE)            {                // 导航控制器的view                self.navigationController.view.transform =                     CATransform3DGetAffineTransform(perspectiveTransform);            }            else            {                // 自身controller的view                self.view.transform = CATransform3DGetAffineTransform(perspectiveTransform);            }        }];                flag = 0;    }    else    {        // 初始化3D变换,获取默认值        CATransform3D perspectiveTransform = CATransform3DIdentity;                // 缩放变换        perspectiveTransform = CATransform3DScale(perspectiveTransform, 1, 1, 1);                [UIView animateWithDuration:0.3 animations:^{            if (VALUE)            {                // 导航控制器的view                self.navigationController.view.transform =                     CATransform3DGetAffineTransform(perspectiveTransform);            }            else            {                // 自身controller的view                self.view.transform = CATransform3DGetAffineTransform(perspectiveTransform);            }        }];                flag = 1;    }}@end

VALUE = http://www.mamicode.com/1 的时候与 VALUE = 0 的时候

他们的关系其实非常简单.

UIWindow  ---> UINavigationController  --->  UIViewController,

有时候,我们需要做缩放动画的效果,或者是转场动画的效果,不理解他们之间细微的差距,是没办法处理好的.

他们之间的关系:

知道了这些原理,再写一个侧边栏,实在是太简单了:).

 

 

 

 

 

 

 


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