ios - ImageView动画，循环遍历图片

Question

所以我想在加载屏幕上为 UIImageView 制作动画，有人告诉我内置的“animationImages”方法占用大量内存并且编程不好，所以我不会使用它，我也有问题有了它，但这不是重点。

下面的代码几乎可以工作，但即使我放了 3 秒，它的动画速度也太快了。

func animate() {

    UIView.animateWithDuration(3, animations: { () -> Void in

        self.logoImageView.image = UIImage(named: "00")
        self.logoImageView.image = UIImage(named: "02")
        self.logoImageView.image = UIImage(named: "03")
        self.logoImageView.image = UIImage(named: "04")
        self.logoImageView.image = UIImage(named: "05")
        self.logoImageView.image = UIImage(named: "06")
        self.logoImageView.image = UIImage(named: "07")
        self.logoImageView.image = UIImage(named: "08")
        self.logoImageView.image = UIImage(named: "09")
        self.logoImageView.image = UIImage(named: "10")
        self.logoImageView.image = UIImage(named: "11")
        self.logoImageView.image = UIImage(named: "12")
        self.logoImageView.image = UIImage(named: "13")
        self.logoImageView.image = UIImage(named: "14")
        self.logoImageView.image = UIImage(named: "15")
        self.logoImageView.image = UIImage(named: "16")
        self.logoImageView.image = UIImage(named: "17")
        self.logoImageView.image = UIImage(named: "18")
        self.logoImageView.image = UIImage(named: "19")
        self.logoImageView.image = UIImage(named: "20")
        self.logoImageView.image = UIImage(named: "21")
        self.logoImageView.image = UIImage(named: "22")
        self.logoImageView.image = UIImage(named: "23")
        self.logoImageView.image = UIImage(named: "24")
        self.logoImageView.image = UIImage(named: "25")
        self.logoImageView.image = UIImage(named: "26")

        }) { (success) -> Void in

            self.fadeInLabel()
    }

但是，下面的代码在欢迎标签中淡出并且工作正常所以我想知道上面的问题是什么。谢谢您的帮助!

func fadeInLabel() {

    UIView.animateWithDuration(2, animations: { () -> Void in

        self.labelImageView.alpha = 1

        }) { (success) -> Void in

          self.performSelector("pushToCreateVC", withObject: self, afterDelay: 1)
    }

}

Answer 1

如果你想为图像设置动画，你可以使用 UIImageView 的 animationImages 属性

self.logoImageView.animationImages = imagesListArray;
self.logoImageView.animationDuration = 3.0
self.logoImageView.startAnimating()

其中 imagesListArray 是您想要制作动画的图像数组

或

如果你想用自定义动画为图像设置动画，你可以使用下面的代码，我使用了 UIViewAnimationOptionTransitionFlipFromLeft 动画选项。下面的代码在 Obj-C 中，我希望你可以映射语义。

// in view Load
 _slide = 0
 [self changeSlide];

// Loop gallery 
NSTimer *timer = [NSTimer timerWithTimeInterval:5.0f target:self selector:@selector(changeSlide) userInfo:nil repeats:YES];
[[NSRunLoop mainRunLoop] addTimer:timer forMode:NSRunLoopCommonModes];


- (void)changeSlide
{

if(_slide > _galleryImages.count-1) _slide = 0;

UIImage *toImage = [UIImage imageNamed:_galleryImages[_slide]];
[UIView transitionWithView:_yourimageView
              duration:0.6f
               options:UIViewAnimationOptionTransitionFlipFromLeft
            animations:^{
                _yourimageView.image = toImage;

            } completion:nil];
_slide++;

}