This question already has an answer here:
How would I make the splash screen stay for longer, 5 seconds, for example?
You need to create a view controller for displaying the splash screen as done below.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
[self generateRandomSplashScreen];
[self performSelector:@selector(removeSplashScreen) withObject:nil afterDelay:SPLASHSCREEN_DELAY];
[self otherViewControllerLoad]; // the other view controller
[self.window makeKeyAndVisible];
return YES;
}
-(void) generateRandomSplashScreen
{
splashScreenViewController = [[SplashScreenController alloc] initWithNibName:@"SplashScreenController" bundle:[NSBundle mainBundle]];
[self.window addSubview:self.splashScreenViewController.view];
}
-(void) removeSplashScreen
{
[splashScreenViewController.view removeFromSuperview];
self.window.rootViewController = self.tabBarController;
[splashScreenViewController release];
}
Write sleep(5.0) in your
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions method.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
/*this will pause main thread for x interval seconds.
put on the top of application:didFinishLaunchingWithOptions, so it will not
proceed to show window until sleep interval is finished.*/
[NSThread sleepForTimeInterval:5]; //add 5 seconds longer.
//other code....
}
Probably the splash screen you are talking about is "default.png" file. As JustSid mentioned, this file is not intended to be splash screen, rather to be used as a first screen snapshot to improve user experience concerning application loading time. Check human interface guideline
If you want to implement splashscreen, you should use ie. NSTimer and UIView components.
来源：https://stackoverflow.com/questions/7511353/change-iphone-splash-screen-time