为iOS App增加启动动画效果

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1. -(BOOL)application:(UIApplication*)applicationdidFinishLaunchingWithOptions:(NSDictionary*)launchOptions
2. {
3. self.window=[[[UIWindowalloc]initWithFrame:[[UIScreenmainScreen]bounds]]autorelease];
4. //Overridepointforcustomizationafterapplicationlaunch.
5. self.viewController=[[[ViewControlleralloc]initWithNibName:@"ViewController"bundle:nil]autorelease];
6. self.window.rootViewController=self.viewController;
7. [self.windowmakeKeyAndVisible];
9. UIImageView*splashScreen=[[[UIImageViewalloc]initWithFrame:self.window.bounds]autorelease];
10. splashScreen.image=[UIImageimageNamed:@"Default"];
11. [self.windowaddSubview:splashScreen];
12. [NSThread sleepForTimeInterval:10.0];
    
13. [UIViewanimateWithDuration:1.0animations:^{
14. CATransform3Dtransform=CATransform3DMakeScale(1.5,1.5,1.0);
15. splashScreen.layer.transform=transform;
16. splashScreen.alpha=0.0;
17. }completion:^(BOOLfinished){
18. [splashScreenremoveFromSuperview];
19. }];
21. returnYES;
22. }

1. -(BOOL)application:(UIApplication*)applicationdidFinishLaunchingWithOptions:(NSDictionary*)launchOptions
2. {
3. self.window=[[[UIWindowalloc]initWithFrame:[[UIScreenmainScreen]bounds]]autorelease];
4. //Overridepointforcustomizationafterapplicationlaunch.
5. self.viewController=[[[ViewControlleralloc]initWithNibName:@"ViewController"bundle:nil]autorelease];
6. self.window.rootViewController=self.viewController;
7. [self.windowmakeKeyAndVisible];
9. UIImageView*splashScreen=[[[UIImageViewalloc]initWithFrame:self.window.bounds]autorelease];
10. splashScreen.image=[UIImageimageNamed:@"Default"];
11. [self.windowaddSubview:splashScreen];
12. [NSThread sleepForTimeInterval:10.0];
    
13. [UIViewanimateWithDuration:1.0animations:^{
14. CATransform3Dtransform=CATransform3DMakeScale(1.5,1.5,1.0);
15. splashScreen.layer.transform=transform;
16. splashScreen.alpha=0.0;
17. }completion:^(BOOLfinished){
18. [splashScreenremoveFromSuperview];
19. }];
21. returnYES;
22. }