避免在收到推送通知 ios 时加载 main viewcontroller

Question

我在接收推送通知时使用下面的代码来显示我的 viewcontroller。它工作正常，但它首先加载主 viewcontroller，然后加载通知 viewcontroller。因此，每次用户收到通知时，他们都会看到两个 viewcontrollers 先加载主要内容，然后再加载通知 controller。

我怎样才能避免这种情况？从 UI 的角度来看，加载两个视图控制器看起来不太好。

UIViewController *main=[[UIStoryboard storyboardWithName:@"Main" bundle:nil]  instantiateViewControllerWithIdentifier:@"main"];            
UINavigationController *navigationController=[[UINavigationController alloc] initWithRootViewController:main];
self.window.rootViewController =nil;
UIViewController *destCon = [[UIStoryboard storyboardWithName:@"Main" bundle:nil] instantiateViewControllerWithIdentifier:@"RelNoti"];
UINavigationController *desNevCont = [[UINavigationController alloc] initWithRootViewController:destCon];                       
self.window.rootViewController = navigationController;
[self.window makeKeyAndVisible];
[self.window.rootViewController  presentViewController:desNevCont animated:YES completion:nil];

Answer 1

在此行将动画设置为 NO，

[self.window.rootViewController  presentViewController:desNevCont animated:NO completion:nil];

Answer 2

您可以像下面这样在检测到推送通知时简单地更改应用的 rootViewController 并避免视图之间的转换：

UIViewController *destCon = [[UIStoryboard storyboardWithName:@"Main" bundle:nil] instantiateViewControllerWithIdentifier:@"RelNoti"];
UINavigationController *desNevCont = [[UINavigationController alloc] initWithRootViewController:destCon];


self.window.rootViewController = desNevCont;
[self.window makeKeyAndVisible];

从您下面的代码来看，您似乎将 mainViewController 分配为 rootViewController，然后在其上方显示 notificationViewController，这就是创建两个视图的过渡。所以，简单地用上面的代码限制你的代码。

self.window.rootViewController = navigationController; // You are doing it here
[self.window makeKeyAndVisible];
[self.window.rootViewController  presentViewController:desNevCont animated:YES completion:nil]; // presenting here

避免在收到推送通知 ios 时加载 main viewcontroller

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