然后关键的layer形变方法来了
- (CATransform3D)firstTransform{
CATransform3D t1 = CATransform3DIdentity;
t1.m34 = 1.0/-900;
//带点缩小的效果
t1 = CATransform3DScale(t1, 0.95, 0.95, 1);
//绕x轴旋转
t1 = CATransform3DRotate(t1, 15.0 * M_PI/180.0, 1, 0, 0);
return t1;
}
- (CATransform3D)secondTransform{
CATransform3D t2 = CATransform3DIdentity;
t2.m34 = [self firstTransform].m34;
//向上移
t2 = CATransform3DTranslate(t2, 0, self.view.frame.size.height * (-0.08), 0);
//第二次缩小
t2 = CATransform3DScale(t2, 0.8, 0.8, 1);
return t2;
}
大家可以看到这，应该可以发现这里其实有两次形变
3.隐藏动画
- (void)close
{
_isShow = NO;
CGRect frame = _popView.frame;
frame.origin.y += self.view.frame.size.height/2.0;
[UIView animateWithDuration:0.3 delay:0 options:UIViewAnimationOptionCurveEaseInOut animations:^{
//maskView隐藏
[_maskView setAlpha:0.f];
//popView下降
_popView.frame = frame;
//同时进行 感觉更丝滑
[_rootview.layer setTransform:[self firstTransform]];
} completion:^(BOOL finished) {
[UIView animateWithDuration:0.3 delay:0 options:UIViewAnimationOptionCurveEaseInOut animations:^{
//变为初始值
[_rootview.layer setTransform:CATransform3DIdentity];
} completion:^(BOOL finished) {
//移除
[_popView removeFromSuperview];
}];
}];
}
最后，完整代码，已经封装好了，继承之后使用创建方法就行了
GitHub:Wzxhaha
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持ASPKU。
注：相关教程知识阅读请移步到IOS开发频道。
