安装字段parse.com obj-c中未显示任何内容

Question

Nothing seems to be showing when I run the app on my phone. Even when I delete the cache. My code seems fine. I don't know how to solve this. I've tried adding channels, reseting the simulator, and even deleteing the app from the phone. What can I do to make this work?

Here's my code for the AppDelegate.m file:

#import "ParseExampleAppDelegate.h"

@implementation ParseExampleAppDelegate


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Override point for customization after application launch.
    [[UITabBar appearance] setSelectedImageTintColor:[UIColor orangeColor]];


    [Parse setApplicationId:@"deletedforsecurity"
                  clientKey:@"deletedforsecurity"];


    // 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;


}


- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {
    // Store the deviceToken in the current installation and save it to Parse.
    PFInstallation *currentInstallation = [PFInstallation currentInstallation];
    [currentInstallation setDeviceTokenFromData:deviceToken];
    currentInstallation.channels = @[ @"global" ];
    [currentInstallation saveInBackground];
}
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
    [PFPush handlePush:userInfo];
}

- (void)applicationWillResignActive:(UIApplication *)application
{
    // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
    // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
}

- (void)applicationDidEnterBackground:(UIApplication *)application
{
    // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
    // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}

- (void)applicationWillEnterForeground:(UIApplication *)application
{
    // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
}

- (void)applicationDidBecomeActive:(UIApplication *)application
{
    // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
}

- (void)applicationWillTerminate:(UIApplication *)application
{
    // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
}

@end

I appreciate any help, and thank you.

Answer 1

Based on our conversation in the comments;

With Parse backend, it's highly likely that you have deleted an installation row from the Installation class at one point in time. Using Parse, if you have deleted a installation id it will retain that state until you create a new app version, or alter a field in the installation class, so the next time the user opens the app a new installation id will populate.

All you have to do is change a version of something in the Installation class and the new field will populate:

I recommended incrementing the build number by 1. You can do this by the following :

I would recommend you not delete installation rows unless you are 1000% sure you don't need it