目标c——无声通知

Question

尽管我在应用程序中收到了一个无声通知（可用内容=1），但始终会出现一条弹出消息，这是不应该发生的。我使用OneSignal服务。有人能帮忙吗？

执行的方法如下：

-(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

非常感谢

完整代码如下所示：

导入"；AppDelegate.h"

        @interface AppDelegate ()
        @end
        @implementation AppDelegate

        - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
            // Override point for customization after application launch.
            
            // OneSignal Push Notifications
            self.oneSignal = [[OneSignal alloc] initWithLaunchOptions:launchOptions
                                                                appId:@"xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
                                                   handleNotification:nil];

            return YES;
        }
        - (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:.
        }
        // system push notification registration success callback, delegate to pushManager
        - (void)application:(UIApplication*)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData*)deviceToken {
            NSLog(@"My token is: %@", deviceToken);
        }
        // system push notification registration error callback, delegate to pushManager
        - (void)application:(UIApplication*)application didFailToRegisterForRemoteNotificationsWithError:(NSError*)error {
            NSLog(@"Failed to get token, error: %@", error);
        }
        -(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler{
            NSLog(@"PUSH NOTIFICATION %@",userInfo);
            
            if([userInfo[@"aps"][@"content-available"] intValue] == 1) {
                NSLog(@"SILENT PUSH NOTIFICATION");
                if (completionHandler) {
                    completionHandler(UIBackgroundFetchResultNoData);
                }
            } else {
                NSLog(@" GENERAL PUSH NOTIFICATION ");
                if (completionHandler) {
                    completionHandler(UIBackgroundFetchResultNoData);
                }
            }
        }
        - (void)application:(UIApplication *) application
        handleActionWithIdentifier: (NSString *) identifier
        forRemoteNotification: (NSDictionary *) additionalData
          completionHandler: (void (^)()) completionHandler {
            
            if (completionHandler) {
                completionHandler(UIBackgroundFetchResultNoData);
            }
            
            
        }
        @end

Answer 1

通知负载看起来像这个

{
    "aps": {
         "badge": 10,
         "alert": "Hello world!",
         "sound": "Default"
    }
}

如果你不想要消息横幅或警报显示，那么不要在你的有效载荷中添加警报密钥

{
    "aps": {
         "badge": 10,
         "sound": "Default"
    }
}

希望它对你有用。

Answer 2

您可以通过此代码使通知不可用或禁用。可能会帮助你

if ([[UIApplication sharedApplication]respondsToSelector:@selector(isRegisteredForRemoteNotifications)])
{
    // For iOS 8 and above
    [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil]];
    [[UIApplication sharedApplication] registerForRemoteNotifications];
}
else
{
    // For iOS < 8
    [[UIApplication sharedApplication] registerForRemoteNotificationTypes:
     (UIUserNotificationTypeBadge | UIUserNotificationTypeSound | UIUserNotificationTypeAlert)];
}