动画

禁升iOS10.png

前后翻转效果

Rotation.gif

CABasicAnimation* rotation;
rotation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.y"];
rotation.toValue = [NSNumber numberWithFloat: M_PI/2.0];
rotation.duration = 1;
rotation.cumulative = YES;
rotation.repeatCount = MAXFLOAT;
[imgV.layer addAnimation:rotation forKey:@"rotationAnimation"];

附：

• CoreAnimation
• UIViewAnimationOptions的类型