为iOS 启动图片多简单的动画效果

delegate里面右个这个函数，只要它没结束，你的等待界面就不会消失。

可以在启动的时候做些动画

 

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    
    
    // Override point for customization after application launch.
    [window addSubview:viewController.view];
    [self.window makeKeyAndVisible];
	
	splashView = [[UIImageView alloc] initWithFrame:CGRectMake(0,0, 320, 480)];  
    splashView.image = [UIImage imageNamed:@"Default.png"];  
    [self.window addSubview:splashView];  
    [self.window bringSubviewToFront:splashView];  
    [UIView beginAnimations:nil context:nil];  
    [UIView setAnimationDuration:2.0];    
    [UIView setAnimationDelegate:self];   
    [UIView setAnimationDidStopSelector:@selector(startupAnimationDone:finished:context:)];  
    splashView.alpha = 0.0;  
    splashView.frame = CGRectMake(-60, -85, 440, 635);  
    [UIView commitAnimations];
	
    return YES;
}

- (void)startupAnimationDone:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context {
	[splashView removeFromSuperview];
	[splashView release];
}