iOS UI 21 消息通知
//
// rootViewController.m
// UI - 大结局 消息通知
//
// Created by dllo on 15/12/10.
// Copyright (c) 2015年 dllo. All rights reserved.
//
#import "rootViewController.h"
#import "SencondViewController.h"
@interface rootViewController ()
@end
@implementation rootViewController
-(void)dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self name:@"天王盖地虎" object:nil];
[[NSNotificationCenter defaultCenter] removeObserver:self name:@"小鸡炖蘑菇" object:nil];
[super dealloc];
}
- (void)viewDidLoad {
[super viewDidLoad];
self.view.backgroundColor = [UIColor whiteColor];
self.navigationItem.title = @"第一页";
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]initWithTitle:@"下一页" style:UIBarButtonItemStylePlain target:self action:@selector(rihthAct)];
//注册消息,以及接收到消息后的处理方式和暗号
//所有注册了同样暗号消息的界面都能收到广播通知
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(notificationAction) name:@"天王盖地虎" object:nil];
//带参数的消息通知
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(notificationChickAction:) name:@"小鸡炖蘑菇" object:nil];
// Do any additional setup after loading the view.
}
- (void)notificationChickAction:(id)sender
{
UIColor *color = (UIColor *)[sender object];
self.view.backgroundColor = color;
}
- (void)notificationAction
{
self.view.backgroundColor = [UIColor greenColor];
}
- (void)rihthAct
{
SencondViewController *root = [[SencondViewController alloc]init];
[self.navigationController pushViewController:root animated:YES];
[root release];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
/*
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
@end
//
// ThirdViewController.m
// UI - 大结局 消息通知
//
// Created by dllo on 15/12/10.
// Copyright (c) 2015年 dllo. All rights reserved.
//
#import "ThirdViewController.h"
@interface ThirdViewController ()
@end
@implementation ThirdViewController
- (void)viewDidLoad {
[super viewDidLoad];
self.navigationItem.title = @"第三页";
self.view.backgroundColor = [UIColor redColor];
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(100, 100, 100, 100);
button.backgroundColor = [UIColor orangeColor];
[button addTarget:self action:@selector(buttonAct) forControlEvents:UIControlEventTouchUpInside];
[button setTitle:@"约" forState:UIControlStateNormal];
[self.view addSubview:button];
// Do any additional setup after loading the view.
}
- (void)buttonAct
{
// //发送消息通知
// [[NSNotificationCenter defaultCenter] postNotificationName:@"天王盖地虎" object:nil];
//发送带参数的消息通知
[[NSNotificationCenter defaultCenter] postNotificationName:@"小鸡炖蘑菇" object:[UIColor magentaColor]];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
/*
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
@end
//
// SencondViewController.m
// UI - 大结局 消息通知
//
// Created by dllo on 15/12/10.
// Copyright (c) 2015年 dllo. All rights reserved.
//
#import "SencondViewController.h"
#import "ThirdViewController.h"
@interface SencondViewController ()
@end
@implementation SencondViewController
- (void)viewDidLoad {
[super viewDidLoad];
self.view.backgroundColor = [UIColor redColor];
self.navigationItem.title = @"第二页";
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]initWithTitle:@"下一页" style:UIBarButtonItemStylePlain target:self action:@selector(rihthAct)];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(notificationAction) name:@"天王盖地虎" object:nil];
// Do any additional setup after loading the view.
}
- (void)notificationAction
{
self.view.backgroundColor = [UIColor greenColor];
}
// Do any additional setup after loading the view.
- (void)rihthAct
{
ThirdViewController *root = [[ThirdViewController alloc]init];
[self.navigationController pushViewController:root animated:YES];
[root release];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
/*
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
@end
