添加个导航栏：
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:xib1];
self.window.rootViewController = navController;
self.title = @"一";
Xib2 *xib2= [[Xib2 alloc] initWithNibName:@"Xib2" bundle:nil];
xib2.modalPresentationStyle = UIModalPresentationCustom;
[self.navigationController pushViewController:xib2 animated:YES];
}
Xib3 *xib3 = [[Xib3 alloc] initWithNibName:@"Xib3" bundle:nil];
UIViewController *popVC = self.navigationController.viewControllers[0];
[self.navigationController pushViewController:xib3 animated:YES];
popVC.title = @"First Page";
}
UIViewController *popVC = self.navigationController.viewControllers[0];
[self.navigationController popToViewController:popVC animated:YES];
popVC.title = @"First Page";
}
- (IBAction)Back:(id)sender {
UIViewController *popVC = self.navigationController.viewControllers[1];
[self.navigationController popViewControllerAnimated:YES];
popVC.title = @"Second Page";
}
{
[super viewDidLoad];
//判断是否是iOS7
if (ISiOS7) {
//在IOS7里，这个是设置导航条文字的颜色
self.navigationController.navigationBar.tintColor=[UIColor redColor];
//在IOS7里，这个是设置导航条背景的颜色
self.navigationController.navigationBar.barTintColor=[UIColor blueColor];
}else{
//不是ios7，只能设置导航条的颜色
self.navigationController.navigationBar.tintColor=[UIColor orangeColor];
}
//自定义标题
UILabel *titleLable=[[UILabel alloc]initWithFrame:CGRectMake(0, 0, 100, 44)];
//ios6里，label默认背景是白色，但是ios7默认透明
if (!ISiOS7) {
titleLable.backgroundColor=[UIColor clearColor];
}
titleLable.text=self.title;
titleLable.font=[UIFont boldSystemFontOfSize:20];
titleLable.textColor=[UIColor whiteColor];
self.navigationItem.titleView=titleLable;
//自定义导航条按键(利用系统自带的样式）
UIBarButtonItem *barButtonItem1=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemEdit target:self action:@selector(onBarButtonItemClicked:)];
UIBarButtonItem *barButtonItem2=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(onBarButtonItemClicked:)];
// self.navigationItem.rightBarButtonItem=barButtonItem;//单独一个按键
self.navigationItem.rightBarButtonItems=@[barButtonItem1,barButtonItem2];
//自定义导航条按键，完全自定义
UIButton *leftBarButton=[UIButton buttonWithType:UIButtonTypeCustom];
[leftBarButton setTitle:@"左侧按键" forState:UIControlStateNormal];
[leftBarButton setTitle:@"左侧点击" forState:UIControlStateHighlighted];
[leftBarButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[leftBarButton setTitleColor:[UIColor redColor] forState:UIControlStateHighlighted];
leftBarButton.frame=CGRectMake(0, 0, 100, 44);
[leftBarButton addTarget:self action:@selector(onLeftBarButtonClicked:) forControlEvents:UIControlEventTouchUpInside];
//将上面自定义的按键，包装成一个导航条按键
UIBarButtonItem *leftBarButtonItem=[[UIBarButtonItem alloc]initWithCustomView:leftBarButton];
self.navigationItem.leftBarButtonItem=leftBarButtonItem;
//设置导航条背景
[self.navigationController.navigationBar setBackgroundImage:[UIImage imageNamed:@"navbg"] forBarMetrics:UIBarMetricsDefault];
}
-(void)onLeftBarButtonClicked:(id)sender{
NSLog(@"自定义导航条按键被点击");
}
-(void)onBarButtonItemClicked:(id)sender{
NSLog(@"导航条按键被点击");
}
Dog *dog;
Person *person;
}
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
dog=[[Dog alloc]init];
person=[[Person alloc]init];
//让人接收通知，把人注册到通知中心中
[[NSNotificationCenter defaultCenter]addObserver:person selector:@selector(beatThief:) name:@"狗叫：bark!!!" object:Nil];
UIButton *button=[UIButton buttonWithType:UIButtonTypeContactAdd];
button.frame=CGRectMake(100, 100, 50, 50);
[button addTarget:self action:@selector(makeDogBark:) forControlEvents:UIControlEventTouchUpInside];
[self.window addSubview:button];
[dog findThief];
}
@implementation Dog
-(void)findThief{
NSString *model=@"测试的数据模型";
//利用通知中心发通知
[[NSNotificationCenter defaultCenter]postNotificationName:@"狗叫：bark!!!" object:model];
}
@end
-(void)beatThief:(id)sender{
// NSLog(@"%@",sender);
NSLog(@"抄家伙，打贼!");
NSNotification *notice=sender;
NSString *testModel=notice.object;
NSLog(@"测试数据的传递：%@",testModel);
}
@end
CGRect buttonOldRect;
UITapGestureRecognizer *tapGR;//添加单击手势
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad{
[super viewDidLoad];
/*
数据传递
1、首先，数据已经存在了！
2、谁需要，就声明几个指针。
3、在实例化2那个对象的时候，将声明的几个指针指向正确是数据。
4、至此，数据传递完成，可以使用了。
*/
//将自己加入通知中心
[[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(onKeyBoradShow:) name:UIKeyboardWillShowNotification object:Nil];
[[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(onKeyBoradHide:) name:UIKeyboardWillHideNotification object:Nil];
buttonOldRect=self.goDetailButton.frame;
//实例化单击手势
tapGR=[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(onTap:)];
}
//单击手势的响应函数
-(void)onTap:(id)sender{
//将输入框取消第一响应者，键盘就睡自动收回
[self.nameTextField resignFirstResponder];
[self.passwordTextField resignFirstResponder];
}
//收到键盘将要弹起的通知后，调用的函数
-(void)onKeyBoradShow:(id)sender{
[self.view addGestureRecognizer:tapGR];
NSLog(@"%@",sender);
//将sender转化成notice类型
NSNotification *notice=sender;
//获取通知里面的userinfo
NSDictionary *userInfo = notice.userInfo;
//在userinfo中获取键盘最后的状态rect
id keyBoardRectNotice = userInfo[UIKeyboardFrameEndUserInfoKey];
//将上面获得的rect对象，提取出cgrect
CGRect keyBoardRect;
[keyBoardRectNotice getValue:&keyBoardRect];
//用获得的cgrect来设置button的frame；
CGRect buttonNewFrame=buttonOldRect;
//原来的按键frame减去键盘的高度，生成新的frame
buttonNewFrame.origin.y-=keyBoardRect.size.height;
[UIView animateWithDuration:0.2 animations:^{
self.goDetailButton.frame=buttonNewFrame;
}];
}
//收到键盘将要收回的通知后，调用的函数
-(void)onKeyBoradHide:(id)sender{
[self.view removeGestureRecognizer:tapGR];
[UIView animateWithDuration:0.3 animations:^{
self.goDetailButton.frame=buttonOldRect;
}];
}
//按键函数
- (IBAction)goDetail:(id)sender {
NSString *name=self.nameTextField.text;
NSString *password=self.passwordTextField.text;
//生成数据模型
QFUserModel *model=[[QFUserModel alloc]init];
model.name=name;
model.pass=password;
QFDetailViewController *detailVC=[[QFDetailViewController alloc]initWithNibName:@"QFDetailViewController" bundle:Nil];
//将数据模型传入
detailVC.model=model;
[self presentViewController:detailVC animated:YES completion:^{
}];
}
//销毁函数，用于移除通知
-(void)dealloc{
//在销毁的时候将自己在通知中心中移除
[[NSNotificationCenter defaultCenter]removeObserver:self];
}
@end