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UILocalNotification本地通知的使用方法

2013-03-12 14:57 369 查看
UILocalNotification一般做为定时器使用,可以定时提醒,定时唤醒。

1.对象的创建

UILocalNotification *notification = [[UILocalNotification alloc] init];
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
NSString *noticeDate = @"2012-07-30 12:00:00";
formatter.dateFormat = @"yyyy-MM-dd HH:mm";
//设置触发时间
notification.fireDate = [formatter dateFromString:noticeDate];
//触发频率,0表示只有一次,频率不能为自定义的
notification.repeatInterval = 0;
notification.repeatInterval = kCFCalendarUnitDay;
notification.repeatInterval = kCFCalendarUnitWeek;
//用户信息,为字典类型,内容可以自己设定,这里存放了唯一的key做为标记
NSDictionary *dict = [[NSDictionary alloc] dictionaryWithObjectsAndKeys:
[NSString stringWithFormat:@"%d", noticeInfo.notifyID],KEY,nil];
[notification setUserInfo:dict];
//提醒内容
notification.alertBody = @"HELLO";
//提醒铃音必须为默认的或声音文件
notification.soundName = UILocalNotificationDefaultSoundName;//@"ping.caf";
//添加到系统管理队列中
[[UIApplication sharedApplication] scheduleLocalNotification:notification];


2.对象的管理

//获取当前所有提醒,内容为UILocalNotification数组
[[UIApplication sharedApplication] scheduledLocalNotifications];
//添加提醒
UIApplication *app = [UIApplication sharedApplication];
[app scheduleLocalNotification:notification];
//取消提醒,遍历所有提醒,从中找到需要取消的那个
NSArray *myArray=[[UIApplication sharedApplication] scheduledLocalNotifications];
for (UILocalNotification *myUILocalNotification in myArray) {
if ([[[myUILocalNotification userInfo] objectForKey:KEY] intValue] == value) {
[[UIApplication sharedApplication] cancelLocalNotification:myUILocalNotification];
return;
}
}
//取消所有提醒
UIApplication *app = [UIApplication sharedApplication];
[app cancelAllLocalNotifications];


3.提醒的处理,提醒触发时会回调appdelegate的如下方法

- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
{
//本地通知
NSLog(@"notification--->>%@",notification);
NSString *alertBody=notification.alertBody;
UIAlertView *alert=[[UIAlertView alloc] initWithTitle:@"定时提醒" message:alertBody delegate:self cancelButtonTitle:@"确定" otherButtonTitles:nil, nil];
[alert show];
}
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