Fadout飞溅屏幕上的多个图像在IOS

Question

我想动画多个图像的启动screen.i显示3图像作为启动屏幕第一个是启动屏幕的默认图像比使用Ui-imageview我显示第二和第三我的Imageview。

我想在更改启动画面时淡出图像。我试过NSTimmer的解决方案，但它显示我直接第三个图像和缅因州屏幕比我尝试后，这个解决方案，但它显示我我的第二和第三个图像2次接连不断。 任何帮助表示赞赏

编辑/ - Nikki建议我一些解决方案，但我有混乱，哪个地方我取消隐藏我的第二个图像视图？ 这里是我的代码

backgroundImageView = [[UIImageView alloc] initWithFrame:self.view.bounds]; 
backgroundImageView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth; 
backgroundImageView.image=[UIImage imageNamed:@"SPLASHSCREEN-2.png"]; 
backgroundImageView2 = [[UIImageView alloc] initWithFrame:self.view.bounds]; 
backgroundImageView2.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth; 
backgroundImageView2.image=[UIImage imageNamed:@"SPLASHSCREEN-3.png"]; 
[self.view addSubview:backgroundImageView]; 
[self.view addSubview:backgroundImageView2]; 
[backgroundImageView2 setHidden:YES]; 
[self performSelector:@selector(performTransition) withObject:nil afterDelay:1.0]; 

-(void)performTransition 
    { 
CATransition *animation3 = [CATransition animation]; 
[animation3 setDuration:3.0f]; 
[animation3 setType:kCATransitionReveal]; 
[animation3 setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]]; 
[[backgroundImageView layer] addAnimation:animation3 forKey:@"SwitchToView"]; 
[backgroundImageView setHidden:YES]; 
[backgroundImageView2 setHidden:NO];//No animation happen while changing the image view 
} 

Answer 1

U可以创建要显示在启动两种ImageView并将它们隐藏在第一。只需编写动画代码：

-(void)performTransition 
{ 
    CATransition *animation3 = [CATransition animation]; 
    [animation3 setDuration:3.0f]; 
    [animation3 setType:kCATransitionReveal]; 
    [animation3 setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]]; 
    [[backgroundImageView2 layer] addAnimation:animation3 forKey:@"SwitchToView"]; 
    [backgroundImageView setHidden:YES]; 
    [backgroundImageView2 setHidden:NO];//No animation happen while changing the image view 
} 

并设置ImageView将在取消隐藏时设置动画。动画类型可通过更改[animation3 setType:kCATransitionReveal];的值进行更改。 记得导入：#import<QuartzCore/QuartzCore.h>

隐藏以前ImageView动画和动画显示未来ImageView你可以写一个函数内部的代码，并可以调用使用performSelector该功能，并可以添加所需的时间间隔。