使一个图像在viewcontroller上无限滚动？

Question

我有两张照片。第一个是透明孔，应该是静态的，而第二个是像图像的滑板车，需要连续水平滚动才能产生视频效果。

有人可以建议我做些什么来实现同样的目标。

Answer 1

您可以像这样设置图像视图的X位置：

CGPoint point0 = imView.layer.position;
CGPoint point1 = { NSIntegerMax, point0.y };

CABasicAnimation *anim = [CABasicAnimation animationWithKeyPath:@"position.x"];
anim.fromValue    = @(point0.x);
anim.toValue  = @(point1.x);
anim.duration   = 1.5f;
anim.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];

// First we update the model layer's property.
imView.layer.position = point1;

// Now we attach the animation.
[imView.layer  addAnimation:anim forKey:@"position.x"];

对于无限滚动，请正确设置滚动视图“contentSize：

scrollView.contentSize = CGSizeMake(NSIntegerMax, kScreenHeight); // Deduce kScreenHeight based on device height

Answer 2

请检查代码Infinity Scroll