Question

我见过很多应用，例如天空新闻， Glympse 等，在他们的应用上有启动画面等动画

我不确定这是作为视图控制器或 appdelegate 中的动画完成的，还是实际电影文件

是否有人知道如何实现这种效果？

感谢。

Answer 1

是动画启动画面是一个视图控制器。这个tutorial可以帮助您创建一个。

Answer 2

如果要创建动画加载屏幕，可以这样做：

·H

@interface ViewController : UIViewController {
IBOutlet UIImageView *AnitmationimageView;
IBOutlet UIImageView *Loadimageview;
}

-(void)delay1;
-(void)delay2;
-(void)delay3;

的.m

- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
AnitmationimageView.animationImages = [NSArray arrayWithObjects:
[UIImage imageNamed:@"L1.png"],
[UIImage imageNamed:@"L2.png"],
[UIImage imageNamed:@"L3.png"],
[UIImage imageNamed:@"L4.png"], nil];
[AnitmationimageView setAnimationRepeatCount:1];
AnitmationimageView.animationDuration = 3;
[AnitmationimageView startAnimating];
[self performSelector:@selector(delay1) withObject:nil afterDelay:3];
}

- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}

-(void)delay1 {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1.0];
[AnitmationimageView setAlpha:0];
[UIView commitAnimations];
[self performSelector:@selector(delay2) withObject:nil afterDelay:1.0];

}

-(void)delay2 {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1.0];
[Loadimageview setAlpha:1];
[UIView commitAnimations];
[self performSelector:@selector(delay3) withObject:nil afterDelay:1.5];
}

-(void)delay3 {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1.0];
[Loadimageview setAlpha:0];
[UIView commitAnimations];
}

所有这些代码均来自http://GeekyLemon.com

Answer 3

只需简单地通过添加屏幕全图像来实现这一点。将图像数组分配给imageView的animationImages属性，如此

for(int i = 1; i < numOfImages; i++) {
                [totalAnimationImages addObject:[UIImage imageNamed:
                                                 [NSString stringWithFormat:@"%@%d.png", image, i]]];
            }
           imageView.animationImages = totalAnimationImages;
            imageView.animationDuration = 1; //speed
            imageView.animationRepeatCount = 1; //infinite loop
            [imageView startAnimating];

如何添加动画闪屏？

3 个答案: