为iOS App增加启动渐变效果

由于目前苹果没有支持该功能，所以只能自己在App启动后做一个过度效果：

[cpp]
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
    // Override point for customization after application launch.
    self.viewController = [[[ViewController alloc] initWithNibName:@"ViewController" bundle:nil] autorelease];
    self.window.rootViewController = self.viewController;
    [self.window makeKeyAndVisible];

    UIImageView *splashScreen = [[[UIImageView alloc] initWithFrame:self.window.bounds] autorelease];
    splashScreen.image = [UIImage imageNamed:@"Default"];
    [self.window addSubview:splashScreen]; www.zzzyk.com

    [UIView animateWithDuration:1.0 animations:^{
        CATransform3D transform = CATransform3DMakeScale(1.5, 1.5, 1.0);
        splashScreen.layer.transform = transform;
        splashScreen.alpha = 0.0;
    } completion:^(BOOL finished) {
        [splashScreen removeFromSuperview];
    }];

    return YES;
}

补充：移动开发 , IOS ,