本地通知-UILocalNotification

第一步:创建本地推送

本地通知

UILocalNotification

// 创建⼀一个本地推送 UILocalNotification * notification = [[UILocalNotification alloc] init];

//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;

// 推送声⾳音

notification.soundName =
UILocalNotificationDefaultSoundName;

// 推送内容
notification.alertBody = @"推送内容";
// 显⽰示在icon上的红⾊色圈中的数⼦子
notification.applicationIconBadgeNumber = 1;
// 设置userinfo ⽅方便在之后需要撤销的时候使⽤用
NSDictionary *info = [NSDictionary

dictionaryWithObject:@"name"forKey:@"key"];
notification.userInfo = info;

//添加推送到UIApplication

        UIApplication *app = [UIApplication
sharedApplication];

//对通知进⾏行设置 UIUserNotificationSettings *setting =

[UIUserNotificationSettings settingsForTypes:
(UIUserNotificationTypeBadge|
UIUserNotificationTypeAlert|
UIUserNotificationTypeSound) categories:nil];

[app registerUserNotificationSettings:setting]; [app scheduleLocalNotification:notification]; 

}

第二步:接收本地推送

- (void)applicationDidBecomeActive:(UIApplication
*)application {

//当程序还在后台运⾏行

application.applicationIconBadgeNumber = 0; }

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

UIAlertView *alert = [[UIAlertView alloc]
initWithTitle:@"本地通知" 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:发送即时通知

- (IBAction)start:(id)sender {
    UIApplication *app = [UIApplication

sharedApplication]; //即时推送

[app presentLocalNotificationNow:notification];
}

第四步:解除本地推送

- (IBAction)stop:(id)sender {
// UIApplication *app = [UIApplication
sharedApplication];
// //取消本地推送
// [app cancelLocalNotification:notification];

[self stopNotifacation];
}

//解除本地推送
- (void)stopNotifacation{

// 获得 UIApplication

    UIApplication *app = [UIApplication
sharedApplication];

//获取本地推送数组

    NSArray *localArray = [app
scheduledLocalNotifications];

    if (localArray) {
        for (UILocalNotification *notify in localArray)

{

            NSString *keyString = [notify.userInfo
objectForKey:@"key"];

            if ([keyString isEqualToString:@"name"]) {
                [app cancelLocalNotification:notify];

} }

} }

注:本地通知注册在本地,如果不取消的话会留下记录。可以通 过获取本地推送数组看到,执行完register后将会存在数组 中,如果不取消下次开启app的时候之前的还存在。