ios--本地通知

实际的开发分为两种情况
1.当应用程序退出到后台,通过点击推送进入程序。这个时候可以通过使用
-(void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification;
根据这个方法获取推送的信息。

2.当应用程序被杀死的时候，点击推送进来的时候会重新加载界面。
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions;
可以根据launchOptions获取推送内容。
//接收通知参数
UILocalNotification *notification=[launchOptions valueForKey:UIApplicationLaunchOptionsLocalNotificationKey];

-(void)addNotification{
    UILocalNotification *notification=[[UILocalNotification alloc]init];
    notification.fireDate=[NSDate dateWithTimeIntervalSinceNow:10];
    notification.alertBody=@"通知来咯";
    [[UIApplication sharedApplication]scheduleLocalNotification:notification];
}

实现一个小功能：当用户连续1小时不操作会通过本地推送提示用户操作，每隔1小时提示一次。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
//通知授权
    if ([[UIApplication sharedApplication]currentUserNotificationSettings].types==UIUserNotificationTypeNone) {
        [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert|UIUserNotificationTypeBadge|UIUserNotificationTypeSound  categories:nil]];
    }
}

//失去焦点
-(void)applicationWillResignActive:(UIApplication *)application{
    [self addNotification];
}

-(void)addNotification{
    UILocalNotification *notification=[[UILocalNotification alloc]init];
    notification.fireDate=[NSDate dateWithTimeIntervalSinceNow:10];
    notification.alertBody=@"一分钟没有用了";
    notification.repeatInterval=NSCalendarUnitMinute;//设置重复的频率
    
    [[UIApplication sharedApplication]scheduleLocalNotification:notification];
}

//清空所有的本地通知
 [[UIApplication sharedApplication]cancelAllLocalNotifications];