24

I have implemented my didReceiveRemoteNotification method. It works and displays a view controller with the notification data which is passed through. This only works when the app was already in the foreground or if it was running in the background. However, when the app is not running and the user clicks a notification, the app launches, but it appears as if no notification has been received. The notification is not written into the text file and the viewcontroller is not being pushed.

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
{
    if ( application.applicationState == UIApplicationStateActive)
    {
        NSDictionary *apsInfo = [userInfo objectForKey:@"aps"];

        NSString *alertMsg = @"";
        NSString *badge = @"";
        NSString *sound = @"";
        NSString *custom = @"";

        if( [apsInfo objectForKey:@"alert"] != NULL)
        {
            alertMsg = [apsInfo objectForKey:@"alert"];
        }


        if( [apsInfo objectForKey:@"badge"] != NULL)
        {
            badge = [apsInfo objectForKey:@"badge"];
        }


        if( [apsInfo objectForKey:@"sound"] != NULL)
        {
            sound = [apsInfo objectForKey:@"sound"];
        }

        if( [userInfo objectForKey:@"Type"] != NULL)
        {
            custom = [userInfo objectForKey:@"Type"];
        }

        // Set your appending text.
        NSString *textToAdd = [NSString stringWithFormat:@":%@", alertMsg];

        NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
        NSString *documentsDirectory = [paths objectAtIndex:0];
        NSString *fileName = [NSString stringWithFormat:@"%@/AccountNotifications.txt", documentsDirectory];
        NSString *fileContents = [[NSString alloc]  initWithContentsOfFile:fileName usedEncoding:nil error:nil];

        NSString *textToFile;

        if (fileContents == NULL)
        {
            textToFile = alertMsg;
        }

        // Here you append new text to the existing one
        if (fileContents != NULL)
        {
            textToFile = [fileContents stringByAppendingString:textToAdd];
        }

        // Here you save the updated text to that file
        paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
        documentsDirectory = [paths objectAtIndex:0];
        fileName = [NSString stringWithFormat:@"%@/AccountNotifications.txt", documentsDirectory];
        NSString *content = textToFile;
        [content writeToFile:fileName atomically:NO encoding:NSStringEncodingConversionAllowLossy error:nil];

        NSArray *fileData = [textToFile componentsSeparatedByString:@":"];

        NSMutableArray *tableDataFromFile;
        tableDataFromFile = [[NSMutableArray alloc] init];

        int i = 0;

        for (i = 1; i < [fileData count]; i++)
        {
            [tableDataFromFile addObject:fileData[i]];
        }

        NotificationViewController *vc = [[NotificationViewController alloc] initWithNibName:@"NotificationViewController" bundle:nil];
        vc.tableData = tableDataFromFile;

        UIViewController *root = self.mainNavController.topViewController;
        NSArray *vcs = [NSArray arrayWithObjects:root, vc, nil];
        [self.mainNavController setViewControllers:vcs animated:YES];
    }
        // app was already in the foreground
    else
    {
        while (done == FALSE)
        {

        }

        NSDictionary *apsInfo = [userInfo objectForKey:@"aps"];

        NSString *alertMsg = @"";
        NSString *badge = @"";
        NSString *sound = @"";
        NSString *custom = @"";

        if( [apsInfo objectForKey:@"alert"] != NULL)
        {
            alertMsg = [apsInfo objectForKey:@"alert"];
        }


        if( [apsInfo objectForKey:@"badge"] != NULL)
        {
            badge = [apsInfo objectForKey:@"badge"];
        }


        if( [apsInfo objectForKey:@"sound"] != NULL)
        {
            sound = [apsInfo objectForKey:@"sound"];
        }

        if( [userInfo objectForKey:@"Type"] != NULL)
        {
            custom = [userInfo objectForKey:@"Type"];
        }

        // Set your appending text.
        NSString *textToAdd = [NSString stringWithFormat:@":%@", alertMsg];

        NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
        NSString *documentsDirectory = [paths objectAtIndex:0];
        NSString *fileName = [NSString stringWithFormat:@"%@/AccountNotifications.txt", documentsDirectory];
        NSString *fileContents = [[NSString alloc]  initWithContentsOfFile:fileName usedEncoding:nil error:nil];

        NSString *textToFile;

        if (fileContents == NULL)
        {
            textToFile = alertMsg;
        }

        // Here you append new text to the existing one
        if (fileContents != NULL)
        {
            textToFile = [fileContents stringByAppendingString:textToAdd];
        }

        // Here you save the updated text to that file
        paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
        documentsDirectory = [paths objectAtIndex:0];
        fileName = [NSString stringWithFormat:@"%@/AccountNotifications.txt", documentsDirectory];
        NSString *content = textToFile;
        [content writeToFile:fileName atomically:NO encoding:NSStringEncodingConversionAllowLossy error:nil];

        NSArray *fileData = [textToFile componentsSeparatedByString:@":"];

        NSMutableArray *tableDataFromFile;
        tableDataFromFile = [[NSMutableArray alloc] init];

        int i = 0;

        for (i = 1; i < [fileData count]; i++)
        {
            [tableDataFromFile addObject:fileData[i]];
        }

        NotificationViewController *vc = [[NotificationViewController alloc] initWithNibName:@"NotificationViewController" bundle:nil];
        vc.tableData = tableDataFromFile;

        UIViewController *root = self.mainNavController.topViewController;
        NSArray *vcs = [NSArray arrayWithObjects:root, vc, nil];
        [self.mainNavController setViewControllers:vcs animated:YES];

    }
            // app was just brought from background to foreground


}

Could someone please help me solve this problem? The boolean done is set to true once the didFinishLaunchingWithOptions is completed. I just want the notificationviewcontroller to open and display the notification if a notification is pressed while the app is not running at all.

4

2 回答 2

33

你应该在你的代码中添加这样的东西：

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

        NSDictionary *remoteNotif = [launchOptions objectForKey: UIApplicationLaunchOptionsRemoteNotificationKey];

        //Accept push notification when app is not open
        if (remoteNotif) {      
            [self handleRemoteNotification:application userInfo:remoteNotif];
            return YES;
        }

        return YES;
    }

您可以将逻辑从didReceiveRemoteNotification某个常用函数移至两个位置并调用该函数。这仅在用户通过点击通知打开应用程序时才有效。如果用户通过点击应用程序图标打开应用程序，通知数据将不会到达应用程序。

于 2013-02-19T22:30:33.050 回答
0

SWIFT代码

let remoteNotif: AnyObject? = launchOptions?[UIApplicationLaunchOptionsRemoteNotificationKey]

            //Accept push notification when app is not open
            if ((remoteNotif) != nil) {

                self.handleRemoteNotification(remoteNotif!)
            }


func handleRemoteNotification(remoteNotif: AnyObject?){
//handle your notification here
}

@Eran 谢谢 :)

于 2015-07-08T06:56:28.917 回答