IOS中通过Core Animation实现简单动画

来源：互联网发布：linux 多线程 sleep 编辑：程序博客网时间：2024/05/16 15:55

//对UIImageView的旋转//CATransaction//    imageView.layer    [CATransaction begin];    [CATransaction setValue:[NSNumber numberWithFloat:1.0] forKey:kCATransactionAnimationDuration];    //按Y轴旋转    CABasicAnimation *FlipAnimation=[CABasicAnimation animationWithKeyPath:@"transform.rotation.y"];    FlipAnimation.timingFunction= [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];    //旋转按弧度M_PI，就是180度    FlipAnimation.toValue= [NSNumber numberWithFloat:M_PI];    FlipAnimation.duration=1;    //旋转后保持状态    FlipAnimation.fillMode=kCAFillModeForwards;    FlipAnimation.removedOnCompletion=NO;    [imageView.layer addAnimation:FlipAnimation forKey:@"flip"];    [CATransaction commit];

另参考：

1、IOS中通过Core Animation实现简单动画

2、IOS----Core Animation介绍1

//    也可以通过对UIView.layer做矩阵做相应的变换达到动画的效果//例如 [UIView beginAnimations:nil context:NULL];    CGAffineTransform moveTransform = CGAffineTransformMakeTranslation(180, 200);    [imageView.layer setAffineTransform:moveTransform];    imageView.layer.opacity = 1;    [UIView commitAnimations];

另参考：

1、CGAffineTransform相关函数

2、转换矩阵