处理多个推送通知出错答案

【问题标题】：Handling multiple push notifications got error处理多个推送通知出错
【发布时间】：2014-05-30 09:47:53
【问题描述】：

当屏幕打开时，我通过自动推送到 detailViewController 来处理推送通知。当有一个或两个推送通知时它工作正常，因为我可以将每个 detailViewController 推到彼此之上并将其弹回。但是，当我必须弹回两个以上的 detailViewController 时，应用程序会崩溃。它只发生在 iOS 7+ 中。

【问题讨论】：

标签： ios error-handling push-notification

【解决方案1】：

设置通知ID

- (void)application:(UIApplication *)app didReceiveRemoteNotification:(NSDictionary *)userInfo
{
   if(app.applicationIconBadgeNumber!=0)
   {
        app.applicationIconBadgeNumber = app.applicationIconBadgeNumber - 1;
    }

    NSString *aps =[NSString stringWithFormat:@"%@",[userInfo objectForKey:@"id"]];


    if (app.applicationState == UIApplicationStateActive)
    {
        NSDictionary *dict = [NSDictionary dictionaryWithObjects:@[[[userInfo objectForKey:@"aps"] objectForKey:@"alert"]] forKeys:@[@"notifyText"]];
        [arrNotificationData addObject:dict];
        [self showNotificationInActiveMode:[[userInfo objectForKey:@"aps"] objectForKey:@"alert"]];
    }


   if ([aps isEqualToString:@"1"])
    {
        [UserDefault setpushnotificationid:[aps intValue]];       
    }
    if ([aps isEqualToString:@"2"])
    {
        [UserDefault setpushnotificationid:[aps intValue]];
    }
    if ([aps isEqualToString:@"3"])
    {
        [UserDefault setpushnotificationid:[aps intValue]];
    }
    if ([aps isEqualToString:@"4"])
    {
        [UserDefault setpushnotificationid:[aps intValue]];
    }if ([aps isEqualToString:@"5"])
    {
        [UserDefault setpushnotificationid:[aps intValue]];
    }


}

使用单例类作为基类并检查 ID 以及推送和弹出视图。

@interface CustomViewController ()

@end

@implementation CustomViewController
- (void)viewDidLoad
{
    [super viewDidLoad];

[[NSNotificationCenter defaultCenter]addObserver:self
                                            selector:@selector(appBecomeActive)
                                                name:UIApplicationDidBecomeActiveNotification
                                              object:nil];
}

-(void)appBecomeActive
{

    int val=[UserDefault getpushnotificationid];
    if(val!=0){

        [self checkforpushnotification];
    }
}


-(void)checkforpushnotification
{
    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
    int val=[UserDefault getpushnotificationid];
    [UserDefault setpushnotificationid:0];


    //.: if current view is profile or setting just dismiss it.because they are present

    switch (val)
    {
        case 1:
        {
            if( [self checkIfControllerExist:[DealsViewController class]])
            {
                return;
            }else{
                detailViewController *VC = (detailViewController *)[storyboard instantiateViewControllerWithIdentifier:@"VCView"];
                [self.navigationController pushViewController:VC animated:YES];
            }
        }
            break;
}
}

现在在你的类中使用 bace 类

@interface detailViewController : CustomViewController

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