ios 开发之本地推送

self.window.rootViewController = [[UINavigationController alloc]initWithRootViewController:[[ViewController alloc]init]];

self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];

button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(20, 100, WIDTH - 40, 50);
button.backgroundColor = [UIColor blueColor];
[button setTitle:@"开始啦" forState:UIControlStateNormal];
[button setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
//绑定方法
[button addTarget:self action:@selector(noticClick:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:button];

//设置本地通知 传一个时间进去
+ (void)registerLocalNotification:(NSInteger)alertTime
{
UILocalNotification *notification = [[UILocalNotification alloc]init];
//设置触发通知的时间
NSDate *fireDate = [NSDate dateWithTimeIntervalSinceNow:alertTime];
NSLog(@"fireDate=%@",fireDate);

notification.fireDate = fireDate;
//时区
notification.timeZone = [NSTimeZone defaultTimeZone];
//设置重复的间隔
notification.repeatInterval = kCFCalendarUnitSecond;

//通知内容
notification.alertBody = @"该起床了...";
notification.applicationIconBadgeNumber = 1;
//通知被触发时播放的声音
notification.soundName = UILocalNotificationDefaultSoundName;
//通知参数
NSDictionary *userDict = [NSDictionary dictionaryWithObject:@"起床了，开始学习了ios开发了" forKey:@"key"];
notification.userInfo = userDict;

//ios8 以后，需要添加这个注册，才能得到授权
if ([[UIApplication sharedApplication] respondsToSelector:@selector(registerUserNotificationSettings:)]) {
UIUserNotificationType type =  UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound;
UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:type
categories:nil];
[[UIApplication sharedApplication] registerUserNotificationSettings:settings];
// 通知重复提示的单位，可以是天、周、月
notification.repeatInterval = NSCalendarUnitDay;
} else {
// 通知重复提示的单位，可以是天、周、月
notification.repeatInterval = NSDayCalendarUnit;
}

//执行通知注册
[[UIApplication sharedApplication]scheduleLocalNotification:notification];

}

-(void)noticClick:(id)sender
{
//调用通知
[ViewController registerLocalNotification:4];//4秒钟后
}

//取消某个本地推送通知
+(void)cancelLocalNotificationWithKey:(NSString *)key
{
//获取所有本地通知数组
NSArray *localNotifications = [UIApplication sharedApplication].scheduledLocalNotifications;

for (UILocalNotification *notification in localNotifications) {
NSDictionary *userInfo = notification.userInfo;
if (userInfo) {

//根据设置通知参数时指定的key来获取通知参数
NSString *info = userInfo[key];

//如果找到需要取消的通知，则取消
if (info != nil) {
[[UIApplication sharedApplication]cancelLocalNotification:notification];
break;
}

}
}
}

//本地通知回调函数，当应用程序在前台时调用
-(void)application:(UIApplication *)application didReceiveLocalNotification:(nonnull UILocalNotification *)notification
{
NSLog(@"notif:%@",notification);

//这里真是需要处理交互的地方
//获取通知所带的数据
NSString *notMes = [notification.userInfo objectForKey:@"key"];
UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"本地通知（前台）" message:notMes delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
[alertView show];

//更新显示的角标个数
NSInteger badge = [UIApplication sharedApplication].applicationIconBadgeNumber;
badge--;
badge = badge >= 0 ? badge : 0;
[UIApplication sharedApplication].applicationIconBadgeNumber = badge;

//在不许要再推送时，可以取消推送
[ViewController cancelLocalNotificationWithKey:@"key"];
}