创建 UINavigationController(导航控制器)
在AppDelegate.m中创建
// 创建一个普通控制器
RootViewController *rootVC = [[RootViewController alloc] init];
// UINavigationController主要用来管理一组控制器(至少有一个),自带 view 但是不使用
UINavigationController *rootNC = [[UINavigationController alloc] initWithRootViewController:rootVC];
// 添加 控件时 是否计算导航条的宽度 默认 YES
rootNC.navigationBar.translucent = NO;
// 改变导航条的字体颜色
rootNC.navigationBar.tintColor = [UIColor blueColor];
// 改变导航条整体颜色
rootNC.navigationBar.barTintColor = [UIColor brownColor];
// 改变导航条标题颜色
rootNC.navigationBar.titleTextAttributes = @{NSForegroundColorAttributeName:[UIColor redColor]};
// 给整个导航条加上背景图片
[rootNC.navigationBar setBackgroundImage:[UIImage imageNamed:@"2.png"] forBarMetrics:UIBarMetricsDefault];
self.window.rootViewController = rootNC;
[rootVC release];
[rootNC release];
入栈和出栈
在 view 中设置 button 属性,并创建 button
入栈要引入后一个页面的控制器(controller)
@property (nonatomic, retain)UIButton *button;
在 controller 中绑定并实现点击事件
- (void)viewDidLoad {
[super viewDidLoad];
self.title = @"首页";
// 绑定点击事件
[self.rootView.button addTarget:self action:@selector(buttonDidClicked:) forControlEvents:UIControlEventTouchUpInside];
}
#pragma mark - button 点击事件
- (void)buttonDidClicked:(UIButton *)sender
{
ScendViewController *secondVC = [[ScendViewController alloc] init];
// 压栈处理 进入下一个页面
[self.navigationController pushViewController:secondVC animated:YES];
}
出栈
#pragma mark - 实现点击事件 出栈
- (void)buttonDidClicked:(UIButton *)sender
{
[self.navigationController popViewControllerAnimated:YES];
}
指定页面跳转
#pragma mark - 通用方法 pop到指定控制器
- (void)button2DidClicked:(UIButton *)sender
{
// pop 到指定控制器
// [self.navigationController popToViewController:self.navigationController.viewControllers[0] animated:YES];
NSArray *array = self.navigationController.viewControllers;
RootViewController *root = nil;
for (id VC in array) {
if ([VC isKindOfClass:[RootViewController class]]) {
root = VC;
break;
}
}
if (root != nil) {
[self.navigationController popToViewController:root animated:YES];
}
}
跳转到根视图控制器
- (void)buttonDidClicked:(UIButton *)sender
{
[self.navigationController popToRootViewControllerAnimated:YES];
}
自定义返回按钮
- (void)viewDidLoad {
[super viewDidLoad];
// 定义一个返回按钮
// left and right 都可以
UIBarButtonItem *leftButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"我的返回" style:UIBarButtonItemStylePlain target:self action:@selector(leftButtonItemAction:)];
UIBarButtonItem *leftButtonItem = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"1.png"] style:UIBarButtonItemStylePlain target:self action:@selector(leftButtonItemAction:)];
UIBarButtonItem *leftButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemReply target:self action:@selector(leftButtonItemAction:)];
// 让系统左(右)边按钮换掉
self.navigationItem.leftBarButtonItem = leftButtonItem;
}
#pragma mark - 导航栏左边按钮的点击方法
- (void)leftButtonItemAction:(UIBarButtonItem *)sender
{
[self.navigationController popViewControllerAnimated:YES];
}
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时间: 2024-10-13 17:53:02