Ios开发中UILocalNotification实现本地通知实现提醒功能

UILocalNotification *localNotification = [[UILocalNotification alloc] init];
if (localNotification == nil) {
return;
}
//设置本地通知的触发时间（如果要立即触发，无需设置），这里设置为20妙后
localNotification.fireDate = [NSDate dateWithTimeIntervalSinceNow:20];
//设置本地通知的时区
localNotification.timeZone = [NSTimeZone defaultTimeZone];
//设置通知的内容
localNotification.alertBody = affair.title;
//设置通知动作按钮的标题
localNotification.alertAction = @"查看”;
//设置提醒的声音，可以自己添加声音文件，这里设置为默认提示声
localNotification.soundName = UILocalNotificationDefaultSoundName;
//设置通知的相关信息，这个很重要，可以添加一些标记性内容，方便以后区分和获取通知的信息
NSDictionary *infoDic = [NSDictionary dictionaryWithObjectsAndKeys:LOCAL_NOTIFY_SCHEDULE_ID,@"id",[NSNumber numberWithInteger:time],@"time",[NSNumber numberWithInt:affair.aid],@"affair.aid", nil];
localNotification.userInfo = infoDic;
//在规定的日期触发通知
[[UIApplication sharedApplication] scheduleLocalNotification:localNotification];

//立即触发一个通知
// [[UIApplication sharedApplication] presentLocalNotificationNow:localNotification];
[localNotification release];

//取消某一个通知
NSArray *notificaitons = [[UIApplication sharedApplication] scheduledLocalNotifications];
//获取当前所有的本地通知
if (!notificaitons || notificaitons.count <= 0) {
return;
}
for (UILocalNotification *notify in notificaitons) {
if ([[notify.userInfo objectForKey:@"id"] isEqualToString:LOCAL_NOTIFY_SCHEDULE_ID]) {
//取消一个特定的通知
[[UIApplication sharedApplication] cancelLocalNotification:notify];
break;
}
}

//取消所有的本地通知
[[UIApplication sharedApplication] cancelAllLocalNotifications];

- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification {

}

if ([[notification.userInfo objectForKey:@"id"] isEqualToString:@"affair.schedule"]) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"test" message:notification.alertBody delegate:nil cancelButtonTitle:@"关闭" otherButtonTitles:notification.alertAction, nil nil];
[alert show];
}

if ([[notification.userInfo objectForKey:@"id"] isEqualToString:@"affair.schedule"]) {
//判断应用程序当前的运行状态，如果是激活状态，则进行提醒，否则不提醒
if (application.applicationState == UIApplicationStateActive) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"test" message:notification.alertBody delegate:nil cancelButtonTitle:@"关闭" otherButtonTitles:notification.alertAction, nil nil];
[alert show];
}
}