IOS - 本地消息推送

第一步：创建本地推送
// 创建一个本地推送
UILocalNotification *notification = [[[UILocalNotification alloc]
init] autorelease];
//设置10秒之后
NSDate *pushDate = [NSDate dateWithTimeIntervalSinceNow:10];

if (notification != nil) {
    //
设置推送时间
   
notification.fireDate = pushDate;
    //
设置时区
   
notification.timeZone = [NSTimeZone defaultTimeZone];
    //
设置重复间隔
   
notification.repeatInterval = kCFCalendarUnitDay;
    //
推送声音
   
notification.soundName = UILocalNotificationDefaultSoundName;
    //
推送内容
   
notification.alertBody = @"推送内容";
   
//显示在icon上的红色圈中的数子
   
notification.applicationIconBadgeNumber = 1;
    //设置userinfo
方便在之后需要撤销的时候使用
    NSDictionary
*info = [NSDictionary
dictionaryWithObject:@"name"forKey:@"key"];
   
notification.userInfo = info;
   
//添加推送到UIApplication

UIApplication *app = [UIApplication sharedApplication];
    [app
scheduleLocalNotification:notification]; 
   
}

第二步：接收本地推送
- (void)application:(UIApplication *)application
didReceiveLocalNotification:(UILocalNotification*)notification{

UIAlertView
*alert = [[UIAlertView alloc] initWithTitle:@"iWeibo"
message:notification.alertBody delegate:nil cancelButtonTitle:@"确定"
otherButtonTitles:nil];
    [alert
show];
    //
图标上的数字减1
   
application.applicationIconBadgeNumber -= 1;
}

第三步：解除本地推送
// 获得 UIApplication
UIApplication *app = [UIApplication sharedApplication];
//获取本地推送数组
NSArray *localArray = [app scheduledLocalNotifications];
//声明本地通知对象
UILocalNotification *localNotification;
if (localArray) {
    for
(UILocalNotification *noti in localArray) {
       
NSDictionary *dict = noti.userInfo;
       
if (dict) {
           
NSString *inKey = [dict objectForKey:@"key"];
           
if ([inKey isEqualToString:@"对应的key值"]) {
               
if (localNotification){
                   
[localNotification release];
                   
localNotification = nil;
               
}
               
localNotification = [noti retain];
               
break;
           
}
       
}
    }
   
   
//判断是否找到已经存在的相同key的推送
    if
(!localNotification) {
       
//不存在初始化
       
localNotification = [[UILocalNotification alloc] init];
    }
   
    if
(localNotification) {
       
//不推送 取消推送
       
[app cancelLocalNotification:localNotification];
       
[localNotification release];
       
return;
    }
}