IOS疯狂基础之UINavigationController

常用代码收集：

//设置Navigation Bar颜色
self.navigationController.navigationBar.tintColor = [UIColor colorWithRed:(218.0/255.0) green:(228.0 / 255.0) blue:(250.0 / 255.0) alpha:1];

//自定义标题
titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0 , 100, 44)];
titleLabel.backgroundColor = [UIColor clearColor];  //设置Label背景透明
titleLabel.font = [UIFont boldSystemFontOfSize:20];  //设置文本字体与大小
titleLabel.textColor = [UIColor colorWithRed:(0.0/255.0) green:(255.0 / 255.0) blue:(0.0 / 255.0) alpha:1];  //设置文本颜色
titleLabel.textAlignment = UITextAlignmentCenter;
titleLabel.text = @"自定义标题";  //设置标题
self.navigationItem.titleView = self.titleLabel;

UIView * tview = [[UIView
alloc]initWithFrame:CGRectMake(0,
0, 150,
25)];

UIImageView * titleView = [[UIImageView
alloc]initWithImage:[UIImage
imageNamed:@"mainTitle.png"]];
[titleView
setFrame:CGRectMake(0,
0, 150,
22)];
[tview
addSubview:titleView];

self.navigationItem.titleView=tview;

创建一个navigationController 并给他个视图控制器

UINavigationController *nav = [[UINavigationController alloc]initWithRootViewController:[[ViewController alloc] initWithNibName:@"ViewController" bundle:nil]];

//设定标题

self.title = @"首页";

//修改为自定义图片 源码例子可以去我那资源里下载

采用继承自UINavigationController 然后重写 - (void)drawRect:(CGRect)rect

隐藏NavigationBar

[self.navigationController setNavigationBarHidden:YES animated:YES];

navigation的推转动画是可以更改的

CATransition *transition = [CATransitionanimation];

transition.duration = 0.3;

transition.timingFunction = [CAMediaTimingFunctionfunctionWithName:kCAMediaTimingFunctionDefault];

transition.type = kCATransitionPush;

transition.subtype = kCATransitionFromLeft;

[self.navigationController.view.layeraddAnimation:transition forKey:nil];

[self.navigationControllerpopViewControllerAnimated:NO];

navigaiton的出栈有这么几种方式：

[self.navigationController popViewControllerAnimated:YES]; //回到上一个视图控制器

[self.navigationController popToViewController:viewController animated:YES];
//回到某一个视图控制器

[self.navigationController popToViewController: [self.navigationController.viewControllers objectAtIndex: ([self.navigationController.viewControllers count] -层次)] animated:YES];

[self.navigationController popToRootViewControllerAnimated:YES];
//回到根视图控制器

用了UINavigationController后，viewWillAppear方法是没有效果的，要用UINavigationControllerDelegate的

– navigationController:willShowViewController:animated: 方法才可以达到这个目的。

所以要做到这个，你必须做以下几步：

1. 设置代理类 nav.delegate = self;

2. 代理类实现UINavigationControllerDelegate Protocol

3. 在代理类中添加– navigationController:willShowViewController:animated:方法

如：

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plaincopy

- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated {

[self.myTableView reloadData];

}