IOS 7锁定屏幕Objective-C的警报本地通知

Posted 2023-03-15

【中文标题】IOS 7锁定屏幕Objective-C的警报本地通知

【英文标题】：Alarm Local Notification at IOS 7 Locked screen Objective-C

【发布时间】：2016-01-28 12:19:36

【问题描述】：

我正在练习在 ios 7 上开发警报应用程序，例如警报。 Alarm time up on IOS7 但是，我在锁定屏幕时停留在本地通知，就像这样。 My notification 我做的一些代码：

在我的 AppDelegate.m 中

我的代码

[[UIApplication sharedApplication] registerUserNotificationSettings:mySettings];

    // Handle launching from a notification
    UILocalNotification *locationNotification = [launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey];

....
..in my ViewController.m..

[self scheduleLocalNotificationWithDate:correctDate];
....
(void)scheduleLocalNotificationWithDate:(NSDate *)fireDate 

    UILocalNotification *localNotification = [[UILocalNotification alloc] init];

    localNotification.fireDate = fireDate;
    localNotification.alertBody = [NSString stringWithFormat:@"Alert Fired at %@", fireDate];
    localNotification.soundName = UILocalNotificationDefaultSoundName;

    localNotification.applicationIconBadgeNumber = numberReminder;
    [[UIApplication sharedApplication] scheduleLocalNotification:localNotification];

谁能帮忙？

谢谢

【参考方案1】：

第三方应用程序不会像系统闹钟应用程序那样出现在锁定屏幕上 - 您的应用程序只能生成普通通知。如果您想添加一个 API 来获得全屏警报样式，您可以尝试filing an enhancement request。

【讨论】：

你能详细解释一下 API 吗？

【参考方案2】：

 if([UIApplication instancesRespondToSelector:@selector(registerUserNotificationSettings:)]) 
    [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert|UIUserNotificationTypeBadge|UIUserNotificationTypeSound categories:nil]];


UILocalNotification *notification = [launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey];

if(notification)        
    application.applicationIconBadgeNumber = 0;

并在 View Controller.m 中调用这个函数

- (void) Notify 
NSDate *fireDate = [[NSDate alloc]init];
fireDate = self.datePicker.date;    

NSCalendar *cal = [NSCalendar currentCalendar];
NSDateComponents *dateComp = [cal components:(NSCalendarUnitHour | NSCalendarUnitMinute| NSCalendarUnitSecond) fromDate:fireDate];    

NSDate *dd = [cal dateByAddingComponents:dateComp toDate:fireDate options:0];    

UILocalNotification *notification = [[UILocalNotification alloc]init];
[notification setFireDate:dd]; 
[[UIApplication sharedApplication] scheduleLocalNotification:notification];

【讨论】：

这……只是尝试做 OP 的代码已经做的事情，只是它甚至不起作用，因为您在创建它后没有使用通知调用 +scheduleLocalNotification:。

抱歉代码不完整，已经编辑。希望这行得通。