ios - 从推送通知更新 sqlite 数据库，应用程序已关闭且未在后台 iOS 中运行

Question

当收到通知并且应用程序被用户关闭/终止时，我正在尝试更新本地 sqlite 数据库。当应用处于后台或事件模式时一切正常。

引用:REFERENCE STACK LINK 1

REFERENCE STACK LINK 2

这是我正在尝试的代码:

-(void)application:(UIApplication )application didReceiveRemoteNotification:(NSDictionary )userInfo fetchCompletionHandler:(nonnull void (^)(UIBackgroundFetchResult))completionHandler{



NSLog(@"App Background :%@",userInfo);



    if(application.applicationState == UIApplicationStateInactive) {

    NSLog(@"Inactive");

    //Show the view with the content of the push

    [self BackgrounCall:userInfo];

    completionHandler(UIBackgroundFetchResultNewData);

    } else if (application.applicationState == UIApplicationStateBackground) {

    NSLog(@"Background");

    //Refresh the local model
    [self BackgrounCall:userInfo];
    completionHandler(UIBackgroundFetchResultNewData);

   } else {

    NSLog(@"Active");

    //Show an in-app banner
    [self BackgrounCall:userInfo];
    completionHandler(UIBackgroundFetchResultNewData);

       }  
   }

问题:为什么它不能在应用程序 INACTIVE 状态下工作。这个问题有解决办法吗？

- (BOOL)application:(UIApplication )application didFinishLaunchingWithOptions:(NSDictionary )launchOptions {
// Override point for customization after application launch.
[[Database shareDatabase] createEditableCopyOfDatabaseIfNeeded];


if(launchOptions != nil)

{  
    // opened from a push notification when the app is closed
    NSDictionary* userInfo = [launchOptions objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey];

    if (userInfo != nil)
    {
        NSLog(@"userInfo->%@", [userInfo objectForKey:@"aps"]);
        [self application:application didReceiveRemoteNotification:launchOptions[UIApplicationLaunchOptionsRemoteNotificationKey]];
    }
}
else
{   
}
 }

Answer 1

-(void)application:(UIApplication )application didReceiveRemoteNotification:

仅当您的应用程序处于后台时用户点击通知横幅时才会调用方法。如果您的应用程序被杀死，那么您需要处理

中的横幅点击

didFinishLaunchWithOptions

方法。您可以使用以下代码来了解您是否点击横幅并且应用程序被杀死。

// Push Notification Handling
[UIApplication sharedApplication].applicationIconBadgeNumber = 0;

NSDictionary *pushDic = [[NSDictionary alloc]init];
pushDic = [launchOptions objectForKey:@"UIApplicationLaunchOptionsRemoteNotificationKey"];

if (pushDic)
{
    NSLog(@"got push when app killed->%@",pushDic);       
}