ios – 在显示来自viewDidload的警报之前显示来自app delegate的警报

概述我试图通过parse.com文档中概述的app委托显示推送通知中包含的消息. 我遇到的问题是,在我的第一个视图控制器的viewdidload方法中,我提出了一个用户在使用应用程序之前必须看到的警报. 在用户从viewdidload方法中看到警报后,如何从我的应用程序委托中调用该方法？ 编辑： 所以,正如评论中所建议的那样,我添加了一个全局变量,一旦我从我的ViewDidload方法显示警报,我就设 我试图通过parse.com文档中概述的app委托显示推送通知中包含的消息.

我遇到的问题是,在我的第一个视图控制器的vIEwdIDload方法中,我提出了一个用户在使用应用程序之前必须看到的警报.

在用户从vIEwdIDload方法中看到警报后,如何从我的应用程序委托中调用该方法？

编辑：

所以,正如评论中所建议的那样,我添加了一个全局变量,一旦我从我的VIEwDIDload方法显示警报,我就设置为true,但是我的appDelegate的通知警报仍然没有出现.

这是我的app delegate.m文件：

- (BOol)application:(UIApplication *)application dIDFinishLaunchingWithOptions:(NSDictionary *)launchOptions{    // OverrIDe point for customization after application launch.    [Parse setApplicationID:@"xxxxxxxxxxxxxxxx"                  clIEntKey:@"xxxxxxxxxxxx"];    // Register for Push Notitications,if running iOS 8    if ([application respondsToSelector:@selector(registerUserNotificationSettings:)]) {        UIUserNotificationType userNotificationTypes = (UIUserNotificationTypeAlert |                                                        UIUserNotificationTypeBadge |                                                        UIUserNotificationTypeSound);        UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:userNotificationTypes                                                                                 categorIEs:nil];        [application registerUserNotificationSettings:settings];        [application registerForRemoteNotifications];    } else {        // Register for Push Notifications before iOS 8        [application registerForRemoteNotificationTypes:(UIRemoteNotificationTypeBadge |                                                         UIRemoteNotificationTypeAlert |                                                         UIRemoteNotificationTypeSound)];    }    return YES;    NSDictionary *notificationPayload = launchOptions[UIApplicationLaunchOptionsRemoteNotificationKey];    if (Notification == true) {        if (![pushText  isEqual: @""]) {            pushText = [[notificationPayload objectForKey:@"aps"] objectForKey:@"alert"];            UIAlertVIEw *alert_news = [[UIAlertVIEw alloc] initWithTitle:NSLocalizedString(@"News","")                                                                 message:pushText                                                                delegate:nil                                                       cancelbuttonTitle:@"Ok"                                                       otherbuttonTitles: nil];            [alert_news show];            }    }}

这是我的vIEwdIDload方法：

RoadSafetyAppAppDelegate *AppDelegate;- (voID)vIEwDIDLoad{        AppDelegate = (RoadSafetyAppAppDelegate *)[[UIApplication sharedApplication] delegate];        [super vIEwDIDLoad];    // Do any additional setup after loading the vIEw,typically from a nib.    backgroundImage.Alpha = 0.3;    toRecipIEnts = [[NSArray alloc]initWithObjects:@"records@shellharbour.nsw.gov.au",nil];    static int appCounter;    if ( appCounter < 1   ) {        UIAlertVIEw *alert = [[UIAlertVIEw alloc] initWithTitle:NSLocalizedString(@"disclaimer","")                                                        message:NSLocalizedString(@"Using a mobile phone whilst driving is against the law. Ensure that you are not behind the wheel when using this app.","")                                                       delegate:nil                                              cancelbuttonTitle:@"I agree to not use a mobile phone while driving"                                              otherbuttonTitles: nil];        [alert show];        appCounter = appCounter+1;       AppDelegate.NotificationAlert = @"1";        AppDelegate.Notification = true;    }}

解决方法 因为您希望在显示任何通知之前显示免责声明一次,并确保用户在同意按钮上看到并轻敲.你可以使用简单的本地通知来做到这一点.

在委托中(… dIDFinishLaunchingWithOptions 总结

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