iOS UIView的转场动画

属性

//view1
@property (nonatomic, strong)UIView *view1;
//view2
@property (nonatomic, strong)UIView *view2;
//view3 作为容器, 将view1和view2添加到view3中
@property (nonatomic, strong)UIView *view3;

伪代码

_view3 = [[UIView alloc]initWithFrame:CGRectMake(100, 100, 200, 100)];
[self.view addSubview:view3];
view1.frame = CGRectMake(0, 0, 200, 100);
view2.frame = CGRectMake(0, 0, 200, 100);
[self.view3 addSubview:view1];
[self.view3 addSubview:view2];

// 添加手势
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapClick:)];
[self.view3 addGestureRecognizer:tap];

- (void)tapClick:(UITapGestureRecognizer *)tap{
    if (i % 2 != 0) {
        [UIView transitionFromView:self.view1 toView:self.view2 duration:1.0 options:UIViewAnimationOptionTransitionFlipFromTop completion:nil];
    }else{
        [UIView transitionFromView:self.view2 toView:self.view1 duration:1.0 options:UIViewAnimationOptionTransitionFlipFromBottom completion:nil];
    }
    i++;
}

动画的关键在于options, 上面采用的是UIViewAnimationOptionTransitionFlipFromTop和UIViewAnimationOptionTransitionFlipFromBottom

• 如果我们采用UIViewAnimationOptionTransitionFlipFromLeft和UIViewAnimationOptionTransitionFlipFromRight
  

  transitionGif1.gif

• UIViewAnimationOptionTransitionCurlUp和UIViewAnimationOptionTransitionCurlDown
  

  transitionGif2.gif

• UIViewAnimationOptionTransitionCrossDissolve
  

  transitionGif3.gif