iPhone上实现Default.png动画

iPhone上实现Default.png动画

iPhone上实现Default.png动画

    原理：  
    添加一张和Default.png一样的图片，对这个图片进行动画，从而实现Default动画的渐变消失的效果。  
    操作：  
    在- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOpti*****:(NSDictionary *)launchOpti*****中添加如下代码：  
    // Make this interesting.
        UIImageView *splashView = [[UIImageView alloc] initWithFrame:CGRectMake(0,0, 320, 480)];  
        splashView.image = [UIImage imageNamed:@"Default.png"];  
        [self.window addSubview:splashView];  
        [self.window bringSubviewToFront:splashView];  
        [UIView beginAnimati*****:nil context:nil];  
        [UIView setAnimationDuration:2.0];  
        [UIView setAnimationTransition:UIViewAnimationTransitionNone forView: self.window cache:YES];  
        [UIView setAnimationDelegate:self];   
        [UIView setAnimationDidStopSelector:@selector(startupAnimationDone:finished:context:)];  
        splashView.alpha = 0.0;  
        splashView.frame = CGRectMake(-60, -85, 440, 635);  
        [UIView commitAnimati*****];  
    就ok了