输入 applicationDidBecomeActive 时本地通知不起作用

Posted 2023-02-24

【中文标题】输入 applicationDidBecomeActive 时本地通知不起作用

【英文标题】：Local Notifications not working When enter applicationDidBecomeActive

【发布时间】：2014-04-28 05:31:57

【问题描述】：

我正在使用重复本地通知向用户显示警报。为此，我使用了以下代码

UILocalNotification* localNotification = [[UILocalNotification alloc] init];
localNotification.fireDate = [[NSDate date] dateByAddingTimeInterval:60];
localNotification.alertBody = @"sss";
localNotification.alertAction = @"Show me the item";
localNotification.timeZone = [NSTimeZone defaultTimeZone];
localNotification.applicationIconBadgeNumber = [[UIApplication sharedApplication] applicationIconBadgeNumber] + 1;
[[UIApplication sharedApplication] scheduleLocalNotification:localNotification];

使用 NSNotification Center 我将每 60 秒调用一次本地通知。它工作正常。

我也在 Appdelegate 中使用以下代码：-

 - (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
    
        NSLog(@"Received");
        UIApplicationState state = [application applicationState];
        if (state == UIApplicationStateActive) 

             [[NSNotificationCenter defaultCenter] postNotificationName:@"RestartProcess" object:self];


 application.applicationIconBadgeNumber = 0;

还有

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

    UILocalNotification *locationNotification = [launchOptions objectForKey:UIApplicationLaunchOptionsLocalNotificationKey];
    if (locationNotification) 
        // Set icon badge number to zero
        NSLog(@"Yes Notid=fications is predsent");
        application.applicationIconBadgeNumber = 0;
    

    return YES;

我的问题是当本地通知开始时，我按下主页按钮然后等待显示。时间段后显示通知消息。 当我点击应用程序图标时，进程停止。之后本地通知不起作用。但是当我点击通知消息时，它会正常工作。我该如何解决这个问题。任何人都可以帮我做到这一点。提前谢谢..

【参考方案1】：

didReceiveLocalNotification 仅在您点击通知消息时调用。如果您想在 applicationDidBecomeActive 中执行此操作，则必须手动执行。

您可以检查徽章数量（如果通知包含徽章），例如：

-(void) applicationDidBecomeActive:(UIApplication *)application


    if(application.applicationIconBadgeNumber >= 1)
    
       //Do you stuff here
        application.applicationIconBadgeNumber = 0;

    

【参考方案2】：

当你按下主页按钮时：

UIApplicationState state = [application applicationState];
// at this time, state == UIApplicationStateInactive

当你点击你的应用程序时，我认为你应该在这个方法中实现：

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

 UIApplicationState state = [application applicationState];
 application.applicationIconBadgeNumber = 0;
 //state at this time is UIApplicationStateInactive
 if (state == UIApplicationStateInactive)    
    [[NSNotificationCenter defaultCenter] postNotificationName:@"RestartProcess" object:self];
 

希望对你有帮助