在TabBarController之前加载欢迎屏幕（启动画面） [英] Loading a Welcome Screen(Splash Screen) before TabBarController

问题描述

在我的基于TabBar的iPhone应用程序中，我想在实际应用程序加载之前显示全屏欢迎页面（带有一些日志），如何从xib文件加载UIView作为欢迎屏幕然后从那里我可以加载我的基于TabBar的应用程序。

In my TabBar based iPhone application, i would like to display a full screen welcome page (with some logs) before the actual application loads, How can i load a UIView from xib file as the welcome screen and then from there i can load my TabBar based application.

提前致谢，

推荐答案

正确的方法是正常加载标签栏应用程序，但使用标签栏控制器的 presentModalViewController：animated：方法在其上显示一个视图控制器（在应用程序：didFinishLaunching：）：

The right way to do this would be to load your tab bar application normally, but use the presentModalViewController:animated: method of the tab bar controller to display a view controller over it (in application:didFinishLaunching:):

SplashScreenController *controller = [[SplashScreenController alloc] initWithNibNamed:nil bundle:nil];
[self.tabBarController presentModalViewController:controller animated:YES];
[controller release];

我通常会在启动画面上放一个关闭按钮，但你也可以做点什么像这样：

I'll usually put a "dismiss" button on the splash screen, but you could also do something like this:

[self.tabBarController performSelector:@selector(dismissModalViewControllerAnimated:) withObject:YES afterDelay:2.0];

这将在启动时显示视图控制器并在两秒后解除它。将 YES es更改为否 s以避免从底部向上滑动动画。

which will present the view controller at launch and dismiss it after two seconds. Change the YESes to NOs to avoid the slide-up-from-the-bottom animation.

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