How to make one View object move according the ...-优快云博客

本文介绍如何在非游戏应用程序中实现路径动画效果。通过创建可变路径、定义起点和添加路径点数据，最终利用Core Animation使对象沿指定路径移动。

2019独角兽企业重金招聘Python工程师标准>>>

Let the image object move according the slot we have generated is a common feature in the game.But we should get this feature in the non-game app.So how to do it?

So follow me...

- Generate the path you want like this:

CGMutablePathRef path = CGPathCreateMutable();

-Then move to the start point you want:

CGPathMoveToPoint(path, NULL, startPoint.x, startPoint.y);

the startPoint is your first point.

- Add all the point data to path

CGPathAddLineToPoint(path, NULL, tempPoint.x, tempPoint.y);

- Make object moving

[self.layer addAnimation:[self animation: path] forKey:@"position"];
self.layer.needsDisplayOnBoundsChange = YES;
[UIView setAnimationCurve:UIViewAnimationCurveLinear];

path is the path you have made.

More information you can look this demo:

http://www.cocoachina.com/bbs/read.php?tid=11425&keyword=%C2%B7%BE%B6%7C%B6%AF%BB%AD%3C/p%3E

But you should modify the code to meet your requirement.

Thanks,

Blues